pathfinder motor handbook

8/11/2019 Pathfinder Motor Handbook

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This manual is provided for informational purposes to thePathFinder Drilling Motor user. Although PathFinder hastaken all of the necessary precautions to ensure that theinformation contained herein is accurate, PathFinder makes

no warranties, guarantees or representations concerningthe manuals accuracy. The use and interpretation of theinformation contained in this manual is entirely at the riskof the user.

No part of this manual may be reproduced in any form

or by any means without prior written permission of anauthorized PathFinder representative.


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Table Of Contents

Introduction .....................................4

Motor Description ..........................4-5

-Top Sub .........................................6

-Catch Mandrel .............................6-8

-Power Section ............................9-13

-Power Transmission Coupling .........13

-Bent Housing ................................13

-Bearing Pack Assembly .............14-17-Bit Box .........................................17

-Near-Bit Stabilizers .......................17

Motor Application. ..........................18

Planning The Job ........................... 19

-Hole Size ......................................19-Build-Rate Capability ....................19

-Bit Selection . ..........................19-21

-Drilling Fluid ...........................21-23

-Hole Temperature ...................23-24

-Rotor Nozzle Usage ......................25

-Power Requirements ...............25-26

-Stator Rubber CompoundSelection ................................26-27

-The Mud System ......................27-29

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Motor Operation .............................30

-Rig-Site Motor Test ...................30-31

-Aligning The Steering Device..........31

-Tripping In ..............................31-32

-Drilling with PDM Motor ............32-35

-Rotary RPM ............................35-36

-Jarring .........................................36

-Tripping Out Of The Hole ..............36

-Checking The Motor For

Re-Run ....................................37-39

-Trouble Shooting ......................40-42

Motor Specification ........................43

-How to Interpret the Graphs .... 43-44

-Motor Specification SummaryTable .......................................46-48

-Individual Motor Specs .......... 49-124

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Appendix

-Adjustable HousingAdjustment G1 ........................A1-A4-Adjustable HousingAdjustment G2 .......................A5-A8-F2000 Adjustable Bend ConnectingRod Housing ........................ A9-A16-Fishing Diagram ................. A17-A22

-Adjustable Housing Make-upTorque Values ........................... A23-Hole Curvature Calculation ..........A24-Radius of Curvature for VariousBuild Rates ................................A25-Formulas ............................ A26-A27-Nozzle Selection .................. A28-A29-Drill Collar Weight ......................A30-Casing Dimensions & Bit

Clearance ........................... A31-A33-Standard Heavy-Wall Drill PipeProperties .................................A34-Rotary Shoulder ConnectionInterchange List ........................A35-Mud Weight ............................... A36

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Introduction

PathFinder Drilling Motors (PDM) was estab-lished in April of 1991 with the purpose of sup-plying the oil & gas industry a series of highquality and dependable downhole drill-ing motors on a sales, lease, or rental basis.PDM motors have been a major player in allareas of the world. This manual is providedfor informational purposes only. PDM has

taken the necessary precautions to ensure itsaccuracy, but PDM does not expressly or im-plicitly guarantee the information containedherein. The information contained herein isthe sole interpretation of the user. Should theuser have any questions pertaining to its accu-racy, please contact a PDM representative.

Motor Description

This section of the handbook is designedto provide the drillers and the operators witha general description of our downhole drill-ing motors. Although different size motorshave different performance characteristics,they share the same basic components:

Top Sub

Catch Mandrel Power Section Power Transmission Coupling Fixed or Adjustable Bent Housing Bearing Pack Assembly Bit Box

Near-Bit Stabilizers


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Figure 1

Figure 1 illustrates the major components ofour drilling motors.

5

Top Sub & Catch Mandrel

The top sub has a dual function. It is used

as a cross over between the motor assembly

and the drill string. It also functions as part of

the catch system by providing the seat for the

catch mandrel.

The Rotor Catch Mandrel is incorporated in the

design of PDM motors as a retaining device. Itsfunction is to minimize the possibility of loosing

motor components in the hole, in the unlikely

event that an external connection breaks or

backs-off. It is also designed to communicate

a possible connection failure to the surface via

a series of pressure signals. To recognize these

signals, it is important to understand how the

Rotor Catch Mandrel behaves under normal

and distressed conditions.

The Catch Mandrel is attached to the top of

the rotor by a threaded connection. The flow

channels around the mandrel are sized to

minimize the pressure losses across the catch

mechanism. The upset section of the catch is

positioned inside a cavity within the Top Sub.

This cavity provides the seat for the catch if or

when an external motor connection fails. Under

normal operating conditions, the catch simply

rotates with the rotor without any substantial

load being applied to it. Figure (2) illustrates

the catch under normal operating conditions.

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Figure (3) shows the catch position after a

connection failure. There are two basic modes

of connection failure: connection breakage

and connection back-off. The catch behaves

differently under each condition. If an exter-

nal motor connection is severed, with motor

on-bottom, a sudden loss of pressure occurs.

Picking the motor off-bottom will seat the catchresulting in off-bottom pressure increase. The

increase in pressure can range from a few

hundred psi to several hundred psi, depend-

ing on the flow rate and mud properties. As

soon as the motor is set on bottom, the catch

will unseat itself and relief the pressure. This

pressure fluctuation is indicative of a possibleconnection failure.

If the mode of failure is connection backoff,

two scenarios are possible. If the connection

separates completely, the pressure signal will

be as described before. If the catch seats it-

self before the joint is totally separated, then

setting the motor on-bottom will not unseat

the catch. The rotation of the drill string might

screw the connection back together and re-

lieve the excessive pressure.

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Figure 2 Figure 3


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Power Section

The power section uses what is known in the in-

dustry as Positive Displacement power section. Its

function is to convert a portion of the hydraulic

energy of the drilling fluid into mechanical horse-

power. The components comprising the power

section are the rotor and the stator.

The rotor is a long and spiral shaft, designed to fitinside a corresponding stator. It is manufactured

from a solid bar of stainless steel and plated with

hard industrial chrome or tungsten carbide. The

chrome or tungsten carbide is intended to protect

the parent metal against corrosion and wear while

reducing the friction between the rotor and the

stator. In high-flow applications, PDM rotors can

be jetted to divert the additional flow to the bit.

The stator is the non-rotating member of the

power section. It is made out of a seamless, heat-

treated tube, lined with an elastomer (rubber) lin-

ing. The internal cavity of the liner has a spiral

geometry designed to accept a rotor of compat-

ible geometry and size. In a Positive Displacement

power section, the rotor always has one less lobe

than the stator.

Power sections are categorized by their size,

rotor/stator lobe ratios, and the number of stages

(stage in a power section is defined as the dis-

tance, measured parallel to the rotor axis, be-

tween two corresponding points of the same spiral

lobe, i.e. lead length of the spiral).

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Figure (4) shows the cross-sectional view of the

rotor and the stator profile with different lobe ra-

tios. There are a few rules of thumb, which mightbe beneficial in the selection and operation of any

PDM motor:

1-The rotational speed of the rotor is proportional

to the rate of fluid flow through the power sec-

tion.

2-The generated torque is proportional to the dif-

ferential pressure across the power section.

3-The torque generated is independent of the fluid

flow through the power section.

4-Power sections with a higher lobe ratio typically

generate more torque and have slower rotary

speed than the ones with a lower lobe ratio. For

example, a 9 5/8 motor with 3:4 lobe ratio will

rotate the drill bit at a higher RPM and will haveless output torque per stage than a 9 5/8 motor

with 4:5 lobe ratio.

5-An increase in the number of stages will propor-

tionally increase the output power and torque at

the same flow rate.

Figure 4

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Optimum completion of a drilling project relies

heavily on the proper selection of the stator elas-

tomer compound. The main factors to consider

are the maximum downhole temperature, mud

type, mud additives, and any harmful chemi-

cals which might be encountered during drilling.

Given enough forewarning, testing of the drill-

ing fluid under simulated downhole conditions

can be conducted before the drilling tools are

assembled. Test results are helpful to determine

the optimum elastomer for the application.

As mentioned in earlier sections, PDM offers

several different stator elastomer compounds.

These different compounds react differently

when exposed to elevated temperatures and

the various chemicals present in drilling fluids.

The standard elastomer is a nitrile based rubber

NBR suitable for use with water based and low

temperature oil based drilling fluids. This rubber

is suitable for use in wells with temperatures in

excess of 270F with the proper sizing and fluid

compatibility. The standard nitrile stators are

the most common and cost effective option for

most drilling conditions. An additional nitrile

elastomer is available in certain models which is

more rigid and resilient. This NBR-HR elasto-

mer can deliver a minimum of 50% more power

than the standard NBR with the proper drilling

parameters.

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In drilling applications where the drilling fluid is

less typical and the temperature is elevated, thehighly saturated nitrile elastomer HSN may be

the optimum choice. The highly saturated type

elastomer is formulated for greater chemical re-

sistance, especially at higher temperature. HSN

elastomer is the best suited elastomer for oil

based and most synthetic based drilling fluids.

Some motor sizes have the option of a metal re-

inforced or uniform elastomer thickness stator

equipped power section. The uniform or even

elastomer stator compared to a conventional

stator can be seen below in Figure (5).

The metal reinforcement of the elastomer pro-

file provides a structural reinforcement of the

elastomer profile allowing its seal against the

rotor to operate at significantly higher pres-sure differential than conventional stators. This

higher pressure differential produces a higher

operating and stall torque. The higher pressure

seal between the rotor and the stator assures

a more steady speed operation than a conven-

tional power section.

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Figure 5


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The metal reinforcement also provides asuperior path for heat dissipation from the

rotor and stator interface. This superior heatdissipation allows the metal reinforced statorto operate more reliably at elevated tempera-tures than a conventional power section. Thesmaller elastomer content of the metalreinforced stator also provides for a statormore resistant to aggressive oil and syntheticbased drilling fluids.

Power Transmission Coupling

The power transmission coupling is the linkbetween the rotor and the Bearing Mandrel. Itconverts the eccentric motion of the rotor intothe concentric rotary motion of the BearingMandrel or Driveshaft. It also transmitsthe torque and the rotary motion of the

rotor, generated by the power section, to thebearing assembly. The hydraulic down thrustof the rotor is also transferred to the bearingsection through this member. All PDM PowerTransmission Couplings are manufacturedfrom a high grade of heat treated alloy steel.The working surfaces of the power transmis-sion are sealed with a high temperature andpressure lubricant to assure optimum opera-

tion and reliability.

Bent Housing

The fixed or adjustable bent housings con-tain the Power Transmission Coupling andconnects the stator housing to the bearing

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housing. Bent housings are available with

fixed and adjustable bends. Fixed bent hous-

ings can only be configured at PDM facilitiesin angles ranging from 0 to 5 degrees depend-

ing on the motor model. The adjustable hous-

ings can be set to various bend angles at the

rig site (see the appendix section of this hand-

book for adjustment procedure). The mag-

nitude of the Adjustable Bent Housing bend

angle ranges from 0 to 3 degrees. This bend

of the Fixed or Adjustable Bent Housing givesthe motor its steering capability. The Fixed

and Adjustable Bent Housings are manufac-

tured out of premium grade high strength

alloy steel. Their contact surfaces with the

formation are hard-faced to minimize wear

while drilling.

Bearing Pack Assembly

The bearing pack assembly contains the neces-

sary components to transmit the rotary drilling

motion to the drill bit and transmit the drilling

forces from the Bottom Hole Assembly (BHA)

to the drill bit. The main components of the

Bearing Pack Assembly are the Bearing Mandrel

or Driveshaft, Thrust and Radial Bearings. The

Bearing Mandrel or Driveshaft is a bored, longshaft designed to transmit the power (torque

and rpm) to the drill bit. It also channels the

drilling fluid to the bit. It is manufactured out

of a high grade of alloy steel that is forged and

heat-treated for strength and toughness. The

Thrust Bearings are designed to sustain

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the applied weight to the drill bit while on-

bottom. They are also capable of bearing thedownward hydraulic thrust load of the rotor The

Thrust Bearings are designed to sustain the ap-

plied weight to the drill bit while on-bottom.

They are also capable of bearing the downward

hydraulic thrust load of the rotor while circulat-

ing off-bottom or drilling with under balanced

bit weight. Depending on the motor model the

thrust bearings may consist of a unique toolsteel ball bearing design that is precision made

and enables the same set of bearings to carry

the on-bottom as well as the off-bottom load.

This important feature increases the number of

bearing races within the limited available space

and increases the thrust load capacity and the

life of the bearing pack. An alternative Thrust

Bearing design utilized in some models consistsof high grade Polycrystalline Diamond Compact

(PDC) Inserts similar to those used on PDC Drill

Bits. These PDC inserts provide a high capacity

and extremely wear resistant thrust bearing for

applications where shorter tool length or extra

longevity is required.

The Radial Bearings rigidly support the bearing

mandrel inside the bearing housing and transfer

the radial forces generated during drilling to the

housings and the rest of the BHA, while assur-

ing that the Driveshaft is aligned and concen-

tric with the axis of the bearing housing.

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The Radial Bearings are constructed from spe-cialized Tungsten Carbide components to pro-

vide optimum life and reliability.

The design of the Tungsten Carbide radial bear-ings also precisely meter the amount of drillingfluid that flows through the radial and thrustbearings for cooling of the bearings. This as-

sures the optimum drilling fluid flow through thedriveshaft and out to the drill bit.

The Bearing Pack Assembly of the PathFinderMotor is one of the few designs that also incor-porates a Driveshaft safety catch feature to mini-mize the possibility of leaving the drill bit in thehole in the unlikely event the Driveshaft breaks

or backs-off. Figure 6 illustrates the normal run-ning position of the Driveshaft and the DriveshaftCatch on the left and the engaged position of theCatch on the right. If the Driveshaft breaks or

backs-off a precision low stress upset or ridgeon the lower portion of the Driveshaft engages

Normal Operating

Position

ActivatedPosition

Bit Box

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Figure 6


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a split ring contained within the lower portion of

the bearing housing preventing the Driveshaftfrom exiting the bearing pack. A substantial

decrease in the off bottom pressure drop on

the surface will signal an incident has occurred

so that appropriate action can be taken.

Bit Box

The bit box is an integral part of the bearing

mandrel. Its outside diameter is sized to ac-

cept a specified box connection. While all the

external components of the motor are station-

ary relative to the drill string, the bit box is the

only external component which has a rotary

motion independent of the rotational speed of

the drill string. The drill bit is screwed directly

into the bit box.

Near-bit Stabilizers

Near-bit Stabilizers are available with remov-

able or integral stabilizers. The removable sta-

bilizers are screwed on the bearing housing.

Occasionally certain clients wish to have theoption of installing different stabilizers on the

motor at the rig site to alter the directional per-

formance of the motor. In that case, the motor

and the stabilizer(s) can be shipped separately

and a protective sleeve protects the external

threads of the bearing housing.

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Motor Application

In todays cost-conscious oil and gas environ-

ment, companies and operators recognize

the positive contributions downhole drilling

motors can make to their bottom-line. The

application of downhole drilling motors are no

longer limited to conventional drilling, but has

expanded to other areas such as:

Steerable Drilling

Medium & Long Radius Drilling

Re-entry Drilling

Horizontal Drilling

Performance Drilling

Hole Opening Hole Spudding

Conductor Pipe Drill Downs

Underreaming & Casing Cutting

Milling

Coring

PathFinder Drilling Motors offers a wide vari-

ety of motor configurations, bit speeds, flow

ranges, and power outputs to suit your par-

ticular need. Our state-of-the-art drill motor

is designed to exceed the load capacity of any

available drill bit in the industry today.

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PLANNING THE JOB

To maximize the benefits of using drillingmotors, it is essential to select the right motorfor your specific application. To do so, thefollowing factors should be considered:Hole Size

Different size PDM motors are designed tofunction effectively within a certain size hole.

The Motor Specification section of this hand-book has outlined the recommended hole sizesfor each motor size. We encourage the drillersand the planners to adhere to these recom-mendations, since any deviation might resultin hole problems and /or cause a prematuremotor failure.

Build-Rate Capability

Choose the proper motor bend angle togenerate the desired build/drop rates withoutexceeding the maximum allowable DLS.

The logistical use of the stabilizer(s), in astraight or bent motor, can also help you stayon track. The technical staff at PathFinderDrilling Motors can assist you with your selec-tion, through the use of computer modelingand software.

Bit SelectionThe proper selection of the drill bit cansubstantially increase the penetrationrate, reduce the drilling cost, and improvethe motor performance.

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The bit TFA (Total Flow Area) has a great dealof influence on motor performance, as well as

the ability to clean the hole. An undersized bit

TFA will result in high pressure drop across

the bit and lower than expected flow rate. In-

adequate flow rate can result in overheating

and damaging the bit, hole cleaning problems,

and will starve the motor of the adequate fluid

needed to operate at its optimum performance.

On the other hand, oversized TFA might not

be able to provide the fluid momentum neces-

sary to properly remove the cuttings. In the

Formulas section of this handbook, neces-

sary formulas are provided to calculate the bit

TFA. In the Motor Specification section of

this handbook, the recommended bit pressuredrop is listed for each size motor. If the flow

requirements needed for your specific appli-

cation exceed the maximum allowable motor

flow rate, a bored rotor can be provided to

supply the additional fluid.

The bit TFA (Total Flow Area) has a great

deal of influence on motor performance, as

well as the ability to clean the hole. An un-

dersized bit TFA will result in high pressure

drop across the bit and lower than expect-

ed flow rate. Inadequate flow rate can re-

sult in overheating and damaging the bit,

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hole cleaning problems, and will starve the mo-

tor of the adequate fluid needed to operate atits optimum performance. On the other hand,

oversized TFA might not be able to provide the

fluid momentum necessary to properly remove

the cuttings. In the Formulas section of this

handbook, necessary formulas are provided to

calculate the bit TFA. In the Motor Specifi-

cation section of this handbook, the recom-

mended bit pressure drop is listed for eachsize motor. If the flow requirements needed

for your specific application exceed the maxi-

mum allowable motor flow rate, a bored rotor

can be provided to supply the additional fluid.

For angle building runs, the gage length of

the bit becomes very important. High drag,

aggressive PDC bits exert more stress on themotor components than the cone bits or less

aggressive bits. Also, high RPM motors com-

bined with high WOB require more flow to cool

the bit (contact the bit manufacturer for the

minimum recommended bit flow rate).

Drilling Fluid

The most fluid sensitive component of the

PDM motor is its stator rubber lining. The

PDM mud motors can operate successful-

ly with any water-based mud, fresh water,

brine, sea water, any oil-based mud with a

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minimum of 200F aniline point and less than

2% aromatic content.

The pH level of the drilling fluid can affect the

life of the drilling motor. The recommended pH

level for PDM motors are between 4 and 10.

If the mud pH level and/or aniline point are

very close or slightly outside the specified lim-

its, continuous circulation of the drilling fluidminimizes the extent of the damage to the

motor. If there is a prolonged interruption in

drilling, periodic circulation through the motor

might increase the motor life, since the stag-

nation of harmful fluid inside the motor will

deteriorate it in an accelerated rate.

The solid contents of the drilling fluid shouldbe maintained below 5% and the sand con-

tents below 1%. Any deviation from the speci-

fied limits will cause the stator elastomer lining

to wear rapidly, which will result in a gradual

reduction in the output power of the motor.

Mud weight is another factor, which should be

considered when planning the drilling opera-tion. Generally speaking, heavier mud (12 lb/

gal. or more) will wear the motor at a faster

rate than a lighter mud. When using a heavy

drilling fluid, keep the sand contents below

0.5% to prevent possible washing in the drill-

ing motor.

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Any additives to the mud system should be

carefully selected to comply with these speci-

fications.

If a substantial amount of gas or air is trapped

in the drilling fluid, it should be removed to

prevent any possible damage to the stator

rubber lining.

Medium to fine lost-circulation material can be

used, as long as they are mixed thoroughly. Ifthe drilling conditions require the use of coarse

material, we recommend the use of jet subs

above the motor to bypass a portion of the

particles and prevent the plugging of the mo-

tor. The use of solid additives with a rough or

sharp texture should be avoided, since they

might scar or cut the stator rubber lining.

Hole Temperature

One of the factors, which affects the physical

and mechanical properties of the stator elasto-

mer lining, is the operating bottom hole

temperature . An increase in temperature

decreases the mechanical strength of the

stator rubber lining and causes it to swell. Theswelling will consequently increase the

rotor/stator interference. The excessive inter-

ference will increase the frictional heat genera-

tion and will over stress the rubber compound,

resulting in premature stator failure.

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PathFinder alters the interference fit between

the rotor and the stator to compensate for the

anticipated downhole temperature. Commu-nicating the expected downhole temperature

is critical to a successful motor run.

Figure (7) illustrates the reduction in the

tensile strength of the nitrile elastomer as the

temperature increases.

To increase the motor life, certain cautionary

measures should be employed when drilling in

a hot hole environment. These measures are

addressed in the Motor Operation section of

the handbook.

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3000

2500

2000

1500

1000

500

100 200 300 400

Highly SaturatedNitrile

Nitrile

Elastomer Temperature (F)

TensileStrength(PSI)

0

Figure 7


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Rotor Nozzle UsageWith the exception of high-speed power sec-tions (1:2 lobe ratio) most PDM rotors can bebored to accept various size nozzles. Rotornozzles are used to increase the flow rateto the bit by bypassing a portion of the fluidthrough the rotor. The use of a rotor nozzleis recommended where the system hydrau-

lics mandates a flow rate, which exceeds themaximum allowable flow through the motor.Please consult your PDM representative todetermine if the use of a rotor nozzle isappropriate for your application. As a refer-ence please refer to the Nozzle Selectionsection of this handbook, for an indication ofthe proper sizing of the rotor nozzle.

Power RequirementsWhen selecting a motor, close attention shouldbe paid to the power output of the motor. Themotor should be powerful enough to deliverthe required amount of torque, at the rightRPM, to turn the drill bit in response to theapplication of various WOB.

Power is the measure of the rate at whichtorque can be applied and is a functionof both torque and rpm. The concept ofpower and torque can be combined bysaying that torque is used to overcome the ro-tational resistance provided by the formation,while power is needed to increase the rate of

25

penetration. When choosing a motor based onperformance, the questions to ask should be,

Can the motor produce enough torque for the

application? if it can, the next question should

be, Which motor can apply the most power to

the formation? If the goal is to increase ROP,

the most powerful motor should be selected.

Most motors are available with Standard andPerformance Power Sections. A Performance

Motor can substantially increase the ROP, de-

crease stalling, and drill harsh formations with

more ease than a standard one.

Stator Rubber Compound Selection

Optimum completion of a drilling project reliesheavily on the proper selection of the stator

rubber compound. The main factors to con-

sider are the maximum hole temperature, the

mud type and its additives, and the type of

harmful chemicals, which might be encoun-

tered during drilling.

PathFinder offers several different stator rub-ber compounds. All compounds swell due to

increase in temperature but behave differently

when exposed to chemical attack.

Standard Nitrile (NBR) and NBR-HR are

our most widely used compounds. They

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are nitrile-based elastomers, which are suitable

for use with most water-based and oil-baseddrilling fluids and additives. The physical and

mechanical properties of NBR and NBR-HR de-

grade the most when exposed to high tem-

perature and high chemical concentrations.

Highly Saturated Nitrile (HSN) is designed to

operate with oil-based or synthetic drilling flu-

ids. The use of this compound is not recom-

mended with water-based mud. With proper

rotor and stator interference a stator, lined

with HSN compound, can operate at bottom

hole temperatures of up to 325F. Compared

to Standard Nitrile, it retains more of its physi-

cal and mechanical properties. Given the same

described drilling conditions, the HSN is de-

signed to outlast and outperform NBR.

The Mud Treatment/Cleaning System

As previously noted, chemistry of the drilling

fluid as well as its weight and texture are cru-

cial to the life and performance of PDM motors.

On certain wells, the properties and/or chemi-

cal composition of the mud are continuously

changing. The changes are either intentional,due to the operational demands, or unintention-

al because of the geological factors. Therefore

continuous monitoring of the drilling fluid and

a competent mud treatment and cleaning sys-

tem are necessary to maintain the properties

of the drilling fluid at its desired level.

27

LCM Lost Circulation Material (LCM) should

be used in limited amounts and should bethoroughly mixed and added to the drilling

fluid. The addition of large slugs of LCM has

the potential to plug the motor and damage its

internal components. LCM should be limited

to fine to medium sized particles.

Abrasive media Sand content in the drilling

fluid should be kept to a minimum and ide-ally below 1%. This is especially important if

the motor is operated at the upper end of its

flow range. Where possible the use of hema-

tite weighting materials should be avoided as

these have shown to be unusually prone to

damaging the internal motor components.

Failure to follow the preceding recommenda-tions can result in:

Rapid deterioration of the power section

and subsequent decline in the power

output.

Expeditious wear of the power transmis-

sion components, i.e. Flexible Coupling

and Bearing Pack. Washing of the flow channels and weak-

ening of critical components, especially

in high-flow application.

Plugging of the motor.

Seizure of the Bearing Pack.

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A sufficient mud treatment system should

be capable of continuously monitoring and

adjusting the PH level of the mud to desired

range (4< PH < 10 ). It should do the same

to maintain the aniline point of the oil-based

mud within the desired level (minimum of

200F and less than 2% aromatic content).

Infiltration / accumulation of substantial

amounts of gaseous matters in the drilling

fluid pose a problem to the motor and should

be contended with.

When drilling for gas or encountering gas

pockets, all or a portion of the gas molecules

gets imbedded in the drilling fluid. Dependingon the relative properties of the mud and the

gas, some of the gas accumulates inside the

mud, while the remaining amount escapes the

mud voluntarily. When the gas bubbles are

pumped back into the well, the hydrostatic

pressure of the well bore gradually forces the

gas into the stator rubber compound through

its microscopic pores. The gas-impregnatedrubber sustains permanent and irreversible

structural damage, which degrades the elasto-

mers properties. An adequate mud treatment

system should promptly recognize and combat

the problem by extracting the trapped gases.

9

MOTOR OPERATION

This section of the handbook provides a gen-eral guideline regarding the use of PDM drill-ing motors.PDM downhole motors arrive at the rig sitewith all the internal and external connectionsmade up to the specified torque. The near-bitstabilizer, if ordered, is installed and made-up to its full recommended torque value. Thebit box and top sub connections, specified bythe customer, are fitted with thread protec-tors. Once the drill bit is installed, the motor isready for operation.

Rig-Site Motor Test

Prior to running the motor into the hole, the

motor should be tested while on the surface.The test can be performed with the bit at-tached, unless there might be a possibility ofthe bit dragging on the internal walls of thetest area. In that case the motor should betested without the bit.

Remove the Top Sub and Bit Box thread pro-tectors. Using the provided lift-sub, pick the

motor up and set it in the slips. Install anyavailable safety clamp and proceed to removethe lift-sub. Attach the kelly to the motor andremove the safety clamp. Lower the motor in-side the hole until the gap between the topof the bit box and the bearing housing is be-low the drilling nipple. Start the pumps and

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gradually bring the GPM up to the desired lim-

it. Make a note of the flow rate and the system

pressure. It might prove to be beneficial to in-

crease the flow rate in several increments and

note the standpipe pressure in every case. The

motor vibrates vigorously at higher flow rates.

This is one of the characteristics of the posi-

tive displacement motors and should not be a

cause for concern. The test is considered sat-

isfactory if there are not any substantial flowand pressure fluctuations.

Also note that a portion of the drilling fluid

has been discharged through the bottom of

the Bearing Housing and has drenched the Bit

Box. This is absolutely normal, since a small

percentage of the drilling fluid is diverted

through the Bearing Pack to lubricate and cool

the bearings.

Aligning The Steering Device

A narrow and shallow line called the scribe-

line marks the bend plane of PDM motors. This

line is located on the Fixed or Adjustable Bent

Housing and is used to indicate the tool face.

Tripping In

If the motor is equipped with a fixed or

adjustable bend housing (below the sta-

tor) and/or a bent sub (above the Top

Sub), exercise extreme caution when

31

passing through the BOP, casing shoe, liner

hangers, ledges, or key seats. If the circulat-ing hole temperature is more than 220F, initi-ate circulation periodically to cool the statorrubber lining. Pumping should be at a slowrate and should last long enough to allow thecooler fluid to reach the power section.If a float valve is not used and the drill stringis empty, the annulus pressure combined withthe dynamic pressure, generated by piercingthrough the fluid, will force the drilling fluidthrough the bit and into the motor, causing themotor to rotate in reverse. This could result inunscrewing one or more internal components.Therefore it is our recommendation to use atleast one float valve in the bottom hole assem-bly. If the use of a float valve is not feasible,

keep the drill string full at all times and trip inslowly. Keep the running speed low when deal-ing with heavy mud and small liners.

Take pressure readings at three or four flowrates close to operating flow rates when trip-ping in. This data can be used as a referenceto conduct similar tests following any drillingproblems.

Drilling With PDM Motor

Regardless of the application, certain commonprocedures should be followed to ensure asuccessful motor run. This section is designedto outline certain guidelines to

32


19/83

assist the end users of PDM motors with theirdrilling challenges.

After reaching the bottom of the hole, with the

bit off-bottom, start the pump and slowly in-

crease the flow rate to the desired level (See

the Motor Specification section of the hand-

book for the recommended motor GPM). Once

the circulation is established, record the stand-pipe pressure reading. This pressure will be

higher than the one recorded on the surface.

Gradually lower the motor to the bottom of

the hole and apply weight to the bit. This will

increase the motor power output, which will

cause an increase in the standpipe pressure.

Continue to add weight until the desired RPMat certain GPM is achieved (see Motor Specifi-

cation section for RPM values). Record the on

- bottom pressure. The difference between

the on-bottom and off-bottom pressure is

called the differential pressure. As the motor

drills off, continue to add weight to maintain

the desired differential pressure.

The performance curves at the Motor Specifi-

cation section of the handbook shows that the

motor RPM decreases as the differential pres-

sure of the motor approaches its full-load limit.

Since ROP is directly related to the motor RPM,

operating the motor at its full-load might not

33

show any substantial increase in ROP, but itwill definitely reduce the stator life. Therefore,

for the best results keep the differential pres-

sure at about 75% of its maximum recom-

mended value.

If the motor is overloaded or is not allowed to

drill-off the applied weight, a rapid increase in

standpipe pressure will occur. At this point the

motor is at its stall pressure, which meansthe bit is not rotating and the fluid is passing

between the rotor and the stator without turn-

ing the rotor. Repeated stalling of the motor

could result in premature motor failure. When

stalling happens, stop the rotary table imme-

diately and cutback the GPM by at least 50%

before lifting the motor up.

When tagging the bottom of the hole for the

first time, or after changing the bit or the

bend angle, drill with lightweight for about 30

minutes to create a bit pattern at the bottom

of the hole. Failing to do so could result in

repeated stalling and subsequent stator dam-

age.

If drilling in an environment where the cir-culating bottom-hole temperature exceeds

200F, certain precautionary measures should

be considered. As mentioned earlier, the me-

chanical strength of the stator rubber lining is

reduced substantially at elevated temperatures.

To reduce the magnitude of the stress on the

34


20/83

rubber, limit the differential pressure across the

motor to 70% of its full-load value. A prolongedinterruption in drilling results in additional swell-

ing of the stator rubber. When bringing the

pumps up, start gradually at low GPM to allow

the stator rubber to cool. Increase the flow rate

to the desired level at several increments. Cir-

culate off-bottom long enough to let the cooler

fluid reach the motor. Lower the bit to the bot-

tom slowly and resume drilling.

The use of performance motors in hot-hole en-

vironment can also improve the life of the mo-

tor, since due to additional power-generating

stages; the differential pressure per stage will

be less than a standard power section. Adding

lubricants to the drilling fluid and keeping the

mud clean could also improve the stator life by

reducing the friction between the rotor and the

stator and decreasing the frictional heat.

Rotary RPM

During the drilling operation, it is a common

practice to rotate the drill string at a moderate

RPM. While rotating, a lateral force is exerted

on the drill bit by the formation. The magnitude

of the force is directly proportional to the bend

length, bend angle and formation hardness and

is inversely proportional to the hole size. The

induced bending stress on the motor raises con-

cern about the possibility of fatigue failure.

35

Fatigue failure will happen in a finite numberof bending cycles, if the magnitude of the

bending stress exceeds the fatigue endurancelimit of the metal. Under these conditions therotary speed plays a significant role in the suc-cessful completion of the well. A high rotaryRPM can substantially accelerate the genera-tion and growth of fatigue cracks under severebending forces.

We have experienced the least number of mo-

tor problems, when the rotary speed and bendangle are limited to 50 RPM and 1.50 respec-tively. So, to avoid a catastrophic connectionfailure, we strongly urge you to adhere tothese limitations.

Jarring

When selecting a jar for a particular drillingoperation, avoid using one whose maximumpull capacity exceeds the maximum allowablepull for the motor, as listed in the Motor Spec-ification section of this handbook. Replacethe motor, if it has been jarred for more thanthree times.

Tripping Out Of the Hole (Re-running)

When pulling a bent assembly, exercise ex-

treme caution at the tight spots such as BOP,casing shoe, ledges, etc. Once on the surface,flush the tool with clean water by placing awater hose into the top sub and rotating thebit box in the clockwise direction until the dis-charge is clear. If the bit box is locked-up, laythe motor down.

36


21/83

Checking the Motor For Re-Run

If the previous run was relatively short andthe motor had not been exposed to a harsh

environment such as high hole temperature,

oil-base mud, sour gas, jarring, or any other

extreme condition, then a decision can be

made regarding the reuse of the motor. To

do so, the integrity of the power transmis-

sion components, i.e. the radial bearings and

thrust bearings and power transmissioncoupling, should be confirmed.

-Radial Bearing: with the motor hanging se-

curely from the kelly, rotate the bit box in both

directions for at least four complete revolu-

tions. If the rotation indicates a tight spot in

the bearing, lay the motor down. Also check

the radial play of the bearing by shaking the

bit box from side to side. The design of radial

bearing allows for a small amount of radial

play. Do not reuse the motor if the play is ex-

cessive.

-Thrust Bearings: measure the thrust bearing

wear as followed (Figure 8). With the motor

hanging securely, record the bit box/bearing

housing gap (dimension A). Stand the mo-tor on the rig floor and apply moderate axial

force. Measure and record the same gap (di-

mension B ). If the clearance

(A-B) exceeds the allowable limits, as outlined

in the following table, the motor is not suit-

able for rerun.

37 38

Figure 8


22/83

Allowable Thrust Bearing & CouplingWear For Motor Re-Run

39

Item

Problem

Cause

CorrectiveAction

1

Pressureincreases

abovetheexpectedlevelwhenoff

bottomanddecreas

eswhenonbottomwithverylight

WOB.

Catas

trophicconnectionfailure-Thepressure

fluctuationistheresultofthecatchmandrelbeing

seatedandunseatedinsidetheTopSub.

Tripoutoftheholeverycarefully.Keepthepumpsoff

ifpossiblewhiletripping.

2

ROPdropswhilethetorqueandthepressureincrease

andtheflowremainsunchanged.

Motor

isinornearstallpressure-thebithasstopped

turningoristurningveryslowlyandmostorallofth

e

fluidisbypassingtherotorandstator.

Stoprotatingimmediately.Shutoffpump

sorcutback

theflowratebyatleast50%beforelifting

offbottom.If

pressuredropisnotdetected,resumedrillingwith

lowerWOB.

3

ROPandflowdropwhilethepressureremainsconstant.

Motor

isatornearstallpressureandforcingthepu

mp

stroke

sdown.

SamecorrectiveactionasItem2.

4

ROPandtorquedro

pwhilethepressureincreases.ROP

failstorespondwith

increasedWOB.

Bitba

lling.

Liftoffbottom,reciprocatestring,increas

eflowtoclean

thebit.Resumedrillingifpressurereturn

stoits

expectedlevel.

5

ROPdropswhiletorqueincreases.WOBnormal.

Stabilizershangingorreaming.

Drillcarefullyforafewfeetwhilerotating

slowly.Ifthe

problempersists,POOHtoreducethebendangleof

themotororadjuststabilizersize.

6

ROPdropsandthe

rotarytorqueandpressureare

irregular.

Junkinthehole,non-homogeneousformation,or

conelocking.

liftoffbottomtowasthejunkaway.Ifthetorqueand

pressurearenotstabilizedPOOH.

TroubleShooting

Bit

OffBottom

40

Motor Size

3 0.130

4 0.140

4 F2000

6 0.150

6 0.180

6 F2000

7 0.180

8 F2000

0.180

11 0.180


23/83


24/83

MOTOR SPECIFICATION

This section of the handbook provides critical

information regarding the physical characteris-

tics and performance parameters of PDM drill-

ing motors.

PDM is continuously improving its motors and

procedures. Therefore, the information in this

section can change without prior notice. All the

changes will be reflected in the latest revisionof the handbook or subsequent PDM brochures

and literature.

The flow rate, RPM, torque, differential pres-

sure correlation is presented graphically for

each motor. The proper interpretation of these

graphs is crucial in maintaining the specified

operating limits of the motor.

Interpreting Performance Graphs

The performance characteristics of every PDM

motor are presented by the performance

graphs. These graphs show the output torque

and speed of the motor, each at different flow

rates versus the differential pressure across

the motor.

The characteristics of a motor can be sub di-

vided into two different categories, indepen-

dent and dependent. The independent charac-

teristics are the ones, which can be controlled

by the driller (i.e. differential pressure and flow

rate). The dependent characteristics are those,

43

which are inherent in the design of the motorand its power section (i.e. RPM, torque, horse-power, and efficiency).

To determine the dependent characteristics ofa motor, locate the desired differential pres-sure on the corresponding axes. Draw a per-pendicular line until it intersects the curve rep-resenting a particular dependent characteristicat a certain GPM (the output torque is not afunction of the motor GPM). From the point ofintersection, draw a horizontal line to intersect

the desired vertical axis.For example, the following curve shows thatat 300 psi of differential pressure and 200GPM, the approximate speed and torque ofthis particular motor are 96 rpm and 1560 ft-lbsrespectively.

44

0

20

40

60

80

100

120

140

0 200 400 600 800 1000 1200

Differential Pressure (psi)

RPM

0

700

1400

2100

2800

3500

4200

4900

5600

Torque(ft-lb)

150 GPM

200 GPM

250 GPM

TORQUE LINE

MAX. DIFFERENTIAL

PRESSURE LINE

96

1560

300


25/83

45 46

MOTOR SPECIFICATIONS

Min.

Max.

Min.

Max.

2/38.0

60

160

348

928

5.8

00

1200

90

580

0.4

8

420

4

-6

16.2

17.4

1500

15,0

00

4/53.5

80

160

124

248

1.5

50

530

45

960

1.8

2

451

4

-6

16.2

17.4

1500

15,0

00

7/82.3

80

160

64

129

0.8

06

350

26

1050

3.0

5

472

4

-6

16.7

17.9

1500

15,0

00

7/86.7

80

160

129

258

1.6

13

1010

81

1640

1.6

1

557

4

-6

20.0

21.1

1500

15,0

00

1/27.0

100

250

330

825

3.3

00

1050

125

980

0.9

3

838

5

-7

22.1

23.2

1500

20,0

00

4/56.0

100

250

102

255

1.0

20

900

119

2460

2.7

3

976

5

-7

18.2

19.3

1500

20,0

00

4/56.0

**

100

250

102

255

1.0

20

900

119

2460

2.7

3

1247

5

-7

-

25.0

2000

20,0

00

7/82.2

100

250

54

136

0.5

43

330

42

1640

4.9

8

750

5

-7

15.9

17.0

1500

20,0

00

7/82.6

150

300

39

79

0.2

63

390

53

3500

8.9

7

1057

5

-7

25.4

26.4

1500

20,0

00

7/83.8

150

250

78

130

0.5

21

570

74

2960

5.2

0

1006

5

-7

21.8

22.9

1500

20,0

00

7/83.8

**

150

250

78

130

0.5

21

570

74

2960

5.2

0

1289

5

-7

-

25.0

2000

20,0

00

7/84.5

150

300

69

139

0.4

63

680

93

3500

5.1

9

1057

5

-7

25.4

26.4

1500

20,0

00

Rev/Gal

Motor

Size

Lobes&

Stages

Flow

(gpm)

MotorRPM

Max

Diff.PSI

MaxHP

MaxTQ

(ft.-lb.)

MaxBit

Press.

Drop

(psi)*

Length

(Adj)

(ft.)

Max

WOB

(lb.)

Motor

WT(lb.)

Torque

Slope

(ft-lb)/psi

HoleSize

(in.)

Length

(Fixed)

(ft.)

3

4

M

OTOROVERVIEW

*Forhigherbitpressured

ropconsultyourPathFinderRepresentat

ive

**F2000MotorLine


26/83

47

48

MOTOROVERVIEW

*Forhigherbitpressur

edropconsultyourPathFinderRepresen

tative

**F2000MotorLine

Min.

Max.

Min.

Max.

Rev/Gal

Motor

Size

Lobes&

Stages

Flow(gpm)

MotorRPM

Max

Diff.PSI

MaxHP

MaxTQ

(ft.-lb.)

MaxBit

Press.Drop

(psi)*

Length

(Adj)

(ft.)

Max

WOB

(lb.)

Motor

WT(lb.)

Torque

Slope

(ft-lb)/psi

HoleSize

(in.)

Length

(Fixed)

(ft.)

4/57.5

150

400

99

264

0.6

59

1130

239

4770

4.2

4

1750

7

-8

25.0

26.4

1500

40,0

00

7/82.8

150

400

50

133

0.3

32

420

84

3340

7.9

5

1674

7

-8

18.4

19.8

1500

40,0

00

7/82.9

200

500

34

85

0.1

70

440

104

6400

14.7

1

1739

7

-8

27.2

28.6

1500

40,0

00

7/84.8

150

400

50

132

0.3

30

720

144

5740

7.9

8

1792

7

-8

25.0

26.4

1500

40,0

00

4/56.0

**

300

500

147

246

0.4

91

900

266

5680

6.3

1

2520

7

-9

-

30.0

2000

50,0

00

4/57.0

300

600

149

298

0.4

97

1050

344

6060

5.7

7

2240

7

-9

25.8

27.1

1500

50,0

00

5/64.0

**

250

500

95

189

0.3

78

600

151

4200

7.0

0

1720

7

-9

-

23.8

2000

50,0

00

6/73.6EW

200

600

57

171

0.2

90

900

286

10000

11.1

1

2220

7

-9

21.2

22.5

1500

50,0

00

7/82.1

250

500

33

67

0.1

33

320

78

6140

19.5

0

2420

7

-9

27.5

28.8

1500

50,0

00

7/82.1

**

250

500

33

67

0.1

33

320

78

6140

19.5

0

2520

7

-9

-

30.0

2000

50,0

00

7/83.0

300

600

85

170

0.2

83

450

135

4190

9.3

0

1775

7

-9

18.7

20.0

1500

50,0

00

7/83.5

300

600

45

90

0.1

50

530

154

9000

17.1

4

2623

7

-9

30.0

31.3

1500

50,0

00

7/85.0

300

600

86

173

0.2

88

750

229

6980

9.3

0

2270

7

-9

24.5

25.8

1500

50,0

00

7/85.7

300

600

73

145

0.2

42

860

253

9150

10.7

0

2623

7

-9

30.0

31.3

1500

50,0

00

6"

6

M

OTOROVERVIEW

*Forhigherbitpressure

dropconsultyourPathFinderRepresentative

**F2000MotorLine

Min.

Max.

Min.

Max.

Rev/Gal

Motor

Size

Lobes&

Stages

Flow(gpm)

MotorRPM

Max

Diff.PSI

MaxHP

MaxTQ

(ft.-lb.)

MaxB

it

Press

.Drop(psi)*

Length

(Adj)

(ft.)

Max

WOB

(lb.)

Motor

WT(lb.)

Torque

Slope

(ft-lb)/psi

HoleSize

(in.)

Length

(Fixed)

(ft.)

4/55.3

300

900

76

228

0.2

53

800

385

8880

11.1

6

3800

9-17

31.8

31.8

1500

70,0

00

4/56.0

300

900

74

221

0.2

46

900

429

10200

11.3

3

3998

9-17

34.5

34.5

1500

70,0

00

7/84.0

400

900

66

149

0.1

66

600

283

9950

16.5

9

3710

9-17

29.7

29.7

1500

70,0

00

4/56.0

**

300

900

74

221

0.2

46

900

429

10200

11.3

3

4550

9

-17

-

30.0

2000

80,0

00

7/84.0

**

400

900

66

149

0.1

66

600

283

9950

16.5

9

4265

9

-17

-

25.3

2000

80,0

00

3/46.0

500

1200

111

265

0.2

21

900

592

11720

13.0

2

5840

12-36

34.2

34.1

1500

100,0

00

5/62.5

**

800

1200

94

140

0.1

17

380

209

7800

20.8

0

5270

12-36

-

25.8

2000

100,0

00

5/64.0

600

1200

64

128

0.1

07

600

386

7890

26.4

2

5840

12-36

34.4

34.3

1500

100,0

00

5/65.0

600

1200

83

166

0.1

38

750

548

16120

21.4

9

6150

12-36

34.5

34.5

1500

100,0

00

5/65.0

**

600

1200

83

166

0.1

38

750

548

16120

21.4

9

6140

12-36

-

31.5

2000

100,0

00

11

3/43.6

800

1500

93

174

0.1

16

560

444

13390

24.8

0

7010

14-36

33.9

34.3

1500

130,0

00

97

8"


27/83

Motor Specifications3 G2 2/3 8.0

0

100

200

300

400

500

600

700

800

900

1000

0 200 400 600 800 1000 1200 1400 1600


RPM

0

100

200

300

400

500

600

700

800

900

1000

Torque(ft-lb)

49 Motor Operations Manual PF1.0

160 gpm

120 gpm

80 gpm

Adjustable Torque4000 ft*lb

Stabilizer Torquen/a ft*lb

BEND

ANGLE

BEND

ANGLE

4.75 5.5 5.875 4.75 5.5 5.875

0.25 N/A N/A N/A 2.2 N/A N/A 0.39

0.50 2.8 N/A N/A 6.5 2.0 N/A 0.78

0.75 5.7 N/A N/A 10.5 6.0 3.8 1.15

1.00 8.6 2.6 N/A 14.3 9.8 7.6 1.50

1.25 11.5 5.5 2.6 17.9 13.4 11.2 1.83

1.50 14.4 8.5 5.5 21.1 16.6 14.4 2.12

1.75 17.3 11.4 8.4 21.1 19.4 17.2 2.38

2.00 20.2 14.3 11.3 21.1 21.8 19.6 2.60

2.25 21.6 17.2 14.2 21.1 23.7 21.5 2.77

2.50 21.6 20.1 17.1 21.1 25.0 22.8 2.89

2.75 21.6 23.0 20.0 21.1 25.9 23.7 2.97

3.00 21.6 25.9 22.9 21.1 26.2 24.0 3.00

HOLE SIZE HOLE SIZE

THEORETICAL BUILD RATES

FIXED HSG ADJ HSG

Slick Slick

50

A

C

B

Disclaimer: The predicted build rates are calculated based upontheoretical 3-point contact between the bit, upper stabilizer andeither lower stabilizer or kickpad. Factors such as the formationcharacteristics, bit type, weight on bit, hole gauge, and holeangle can affect the actual build rate.

PathFinder is an Operating Unit of Smith International, Inc.

3 G22/3 8.0

Flow Rate gpm (lpm)

Bit Speed RPM

Torque ft-lb (Nm)

Stall Torque ft-lb (Nm)

Max Differential Pressure psi (KPa)

Power hp (kW)

Off Bottom Pressure psi (KPa)

Specific Rotation Rev/gal (Rev/l)

Lobes

Stages

Fixed AdjustableOverall Motor Length A ft (m) 16.23 (4.95) 17.35 (5.29)

Bix Box to Stabilizer B ft (m) 1.00 (0.30) 1.00 (0.30)

Bit Box to Bend C ft (m) 2.98 (0.91) 3.88 (1.18)

Bend Settings degree 0-5 0-3

Weight lb (kg) 490 (222) 518 (235)

Top Connection Box

Bit Connection Box

Max WOB lb (kg)

Max Backreaming lb (kg)

Max Bit Overpull to Rerun lb (kg)

Max Bit Overpull to Yield lb (kg)

Max Body Overpul l to Yield lb (kg)

210000 (95340)

340000 (154360)

9000 (4090)

35000 (15890)

15000 (6810)

2 3/8 or 2 7/8 API Reg. Box


2/3

8

5.80 (1.53)

870 (1180)

180 (1240)

90 (67)

1200 (8270)

580 (786)

464-928

Operational Data

80-160 (300-600)


28/83


0

25

50

75

100

125

150

175

200

225

250

275

0 100 200 300 400 500 600 700


RPM

0

100

200

300

400

500

600

700

800

900

1000

1100

Torque(ft-lb)

51 Motor Operations Manual PF1.0

160 gpm

120 gpm

80 gpm

Adjustable Torque4,000 ft*lb


BEND

ANGLE

BEND

ANGLE

4.75 5.5 5.875 4.75 5.5 5.875

0.25 N/A N/A N/A 2.3 N/A N/A 0.39

0.50 2.9 N/A N/A 6.7 2.1 N/A 0.78

0.75 5.9 N/A N/A 10.8 6.2 3.9 1.15

1.00 8.9 2.8 N/A 14.7 10.2 7.9 1.50

1.25 11.9 5.8 2.7 18.4 13.9 11.6 1.83

1.50 14.9 8.7 5.7 21.7 17.1 14.8 2.12

1.75 17.9 11.7 8.7 24.6 20.0 17.7 2.38

2.00 20.9 14.7 11.6 27.1 22.5 20.2 2.60

2.25 23.9 17.7 14.6 29.0 24.4 22.1 2.77

2.50 26.9 20.7 17.6 30.3 25.7 23.5 2.89

2.75 29.9 23.7 20.6 31.2 26.6 24.3 2.97

3.00 32.8 26.7 23.6 31.6 27.0 24.7 3.00

HOLE SIZE HOLE SIZE


FIXED HSG ADJ HSG

Slick Slick

52

A

C

B



3 G24/5 3.5

Flow Rate gpm (lpm)

Bit Speed RPM

Torque ft-lb (Nm)

Stall Torque ft-lb (Nm)

Max Dif ferential Pressure psi (KPa)

Power hp (kW)


Specific Rotation Rev/gal (Rev/l)

Lobes

Stages

Fixed AdjustableOverall Motor Length A ft (m) 16.23 (4.95) 17.35 (5.29)




Weight lb (kg) 398 (181) 426 (193)

Top Connection Box

Bit Connection Box

Max WOB lb (kg)




Max Body Overpull to Yield lb (kg)

Operational Data

80-160 (300-610)

960 (1302)

120-250

1.550 (0.410)

1440 (1953)

45 (34)

530 (3620)

100 (690)

4/5

3.5



15000 (6810)

8700 (3950)

340000 (154360)

35000 (15890)

210000 (95340)


29/83

Motor Operations Manual PF1.0


0

20

40

60

80

100

120

140

0 100 200 300 400 500 600 700


RPM

0

300

600

900

1200

1500

1800

2100

Torque(ft-lb)

53

160 gpm

120 gpm

80 gpm



BEND

ANGLE

BEND

ANGLE

4.75 5.5 5.875 4.75 5.5 5.875

0.25 N/A N/A N/A 2.2 N/A N/A 0.39

0.50 2.8 N/A N/A 6.5 2.0 N/A 0.78

0.75 5.7 N/A N/A 10.5 6.0 3.8 1.15

1.00 8.6 2.6 N/A 14.3 9.8 7.6 1.50

1.25 11.5 5.5 2.6 17.9 13.4 11.2 1.83

1.50 14.4 8.5 5.5 21.1 16.6 14.4 2.12

1.75 17.3 11.4 8.4 23.9 19.4 17.2 2.38

2.00 20.2 14.3 11.3 26.3 21.8 19.6 2.60

2.25 23.1 17.2 14.2 28.2 23.7 21.5 2.77

2.50 26.0 20.1 17.1 29.5 25.0 22.8 2.89

2.75 29.0 23.0 20.0 30.3 25.9 23.7 2.97

3.00 31.9 25.9 22.9 30.7 26.2 24.0 3.00

HOLE SIZE HOLE SIZE


FIXED HSG ADJ HSG

Slick Slick

54

Disclaimer: The predicted build rates are calculated basedupon theoretical 3-point contact between the bit, upper stabi-lizer and either lower stabilizer or kickpad. Factors such as theformation characteristics, bit type, weight on bit, hole gauge,and hole angle can affect the actual build rate.


A

C

B

3 G27/8 2.3

Flow Rate gpm (lpm)

Bit Speed RPM

NBR & HSN HR

Torque ft-lb (Nm) 1050 (1424) 1575 (2136)

Stall Torque ft-lb (Nm) 1580 (2142) 2370 (3213)

Max Differential Pressure psi (KPa) 350 (2380) 525 (3570)

Power hp (kW) 19 (14) 28.5 (21)


Rev/gal (Rev/l)

Lobes

Stages

Fixed Adjustable

Overall Motor Length A ft (m) 16.73 (5.10) 17.85 (5.44)




Weight lb (kg) 411 (187) 438 (199)

Top Connection Box

Bit Connection Box

Max WOB lb (kg)




Max Body Overpull to Yield lb (kg)

15000 (6810)

35000 (15890)

9300 (4220)

Specific Rotation .806 (.213)

210000 (95340)

340000 (154360)

Operational Data

80-160 (300-610)

64-130


7/8

2.3


140 (965)


30/83



0

50

100

150

200

250

300

0 200 400 600 800 1000 1200Differential Pressure (psi)

RPM

0

300

600

900

1200

1500

1800

2100

To

rque(ft-lb)

55

160 gpm

120 gpm

80 gpm



56


BENDANGLE

BENDANGLE

4.75 5.5 5.875 4.75 5.5 5.875

0.25 N/A N/A N/A 1.7 N/A N/A 0.39

0.50 2.2 N/A N/A 5.3 1.5 N/A 0.78

0.75 4.7 N/A N/A 8.8 5.0 3.1 1.15

1.00 7.1 2.1 N/A 12.0 8.2 6.3 1.50

1.25 9.5 4.5 2.0 15.1 11.3 9.4 1.83

1.50 12.0 6.9 4.4 17.8 14.0 12.1 2.12

1.75 14.4 9.4 6.9 20.2 16.4 14.5 2.38

2.00 16.9 11.8 9.3 22.2 18.4 16.5 2.60

2.25 19.3 14.3 11.8 23.8 20.0 18.1 2.77

2.50 21.7 16.7 14.2 24.9 21.1 19.2 2.89

2.75 24.2 19.2 16.6 25.6 21.8 19.9 2.97

3.00 26.6 21.6 19.1 25.9 22.1 20.2 3.00

HOLE SIZE HOLE SIZE


FIXED HSG ADJ HSG

Slick Slick


A

C

B

3 G27/8 6.7

Flow Rate

Bit Speed

Torque

Stall Torque

Max Differential Pressure

Power

Off Bottom Pressure

Specific Rotation

Lobes

Stages

Fixed AdjustableOverall Motor Length A 19.83 (6.09) 21.10 (6.43)

Bix Box to Stabilizer B 1.00 (0.30) 1.00 (0.30)

Bit Box to Bend C 2.98 (0.91) 3.88 (1.18)

Bend Settings 0-5 0-3

Weight 411 (187) 438 (199)

Top Connection

Bit Connection

Max WOB

Max Backreaming

Max Bit Overpull to Rerun

Max Bit Overpull to Yield

Max Body Overpull to Yield

Operational Data

gpm (lpm) 80-160 (300-610)

RPM 129-260

ft-lb (Nm) 1640 (2220)

ft-lb (Nm) 2460 (3336)

Rev/gal (Rev/l) 1.613 (0.426)

psi (KPa) 1010 (6930)

hp (kW) 74 (56)

psi (KPa) 140 (965)

7/8

6.7


Box 2 3/8 or 2 7/8 API Reg. Box

ft (m)

ft (m)

ft (m)

degree

lb (kg)

lb (kg) 340000 (154360)

lb (kg) 6600 (3000)

lb (kg) 35000 (15890)

lb (kg) 210000 (95340)

Box

lb (kg) 15000 (6810)


31/83



0

100

200

300

400

500

600

700

800

900

0 200 400 600 800 1000 1200 1400


RPM

0

150

300

450

600

750

900

1050

1200

1350

To

rque(ft-lb)

57

250 gpm

175 gpm

100 gpm


Stabilizer Torque6,000 ft*lb

BEND

ANGLE

5.875 6.125 6.75 7.875 5.875 6.125 6.75 7.875

0.25 N/A N/A N/A N/A 1.6 1.8 2.5 3.6

0.50 1.8 0.5 N/A N/A 3.5 3.8 4.4 5.6

0.75 4.0 2.7 N/A N/A 5.5 5.8 6.4 7.6

1.00 6.2 5.0 1.8 N/A 7.5 7.7 8.4 9.5

1.25 8.4 7.2 4.0 N/A 9.5 9.7 10.4 11.5

1.50 10.7 9.4 6.2 0.4 11.4 11.7 12.3 13.5

1.75 12.9 11.6 8.4 2.6 13.4 13.7 14.3 15.4

2.00 15.1 13.8 10.6 4.9 15.1 15.6 16.3 17.4

2.25 15.1 16.0 12.8 7.1 15.1 16.0 18.2 19.4

2.50 15.1 17.2 15.0 9.3 15.1 17.2 20.2 21.4

2.75 15.1 17.2 17.3 11.5 15.1 17.2 22.2 23.3

3.00 15.1 17.2 19.5 13.7 15.1 17.2 22.2 25.3

0.39 1.5 0.5 N/A N/A 2.4 2.6 3.2 4.2

0.78 4.8 3.8 1.4 N/A 5.1 5.4 5.9 7.0

1.15 7.9 6.9 4.5 0.2 7.9 8.0 8.6 9.6

1.50 10.8 9.9 7.5 3.2 10.8 10.5 11.1 12.1

1.83 13.6 12.7 10.3 6.0 13.6 12.9 13.4 14.5

2.12 15.1 15.1 12.7 8.4 14.7 15.1 15.5 16.5

2.38 15.1 17.3 14.9 10.6 15.6 17.3 17.4 18.4

2.60 15.1 17.3 16.8 12.5 15.6 18.3 18.9 20.0

2.77 15.1 17.3 18.2 13.9 15.6 18.3 20.1 21.2

2.89 15.1 17.3 19.2 14.9 15.6 18.3 21.0 22.0

2.97 15.1 17.3 19.9 15.6 15.6 18.3 21.6 22.6

3.00 15.1 17.3 20.2 15.9 15.6 18.3 21.8 22.8

FIXED HSG


HOLE SIZE

SlickHOLE SIZE

Stabilized

ADJUSTABLE HSG

58



A

C

B

4 G21/2 7.0

Flow Rate

Bit Speed

Torque

Stall Torque


Power

Off Bottom Pressure

Specific Rotation

Lobes

Stages

Fixed Adjustable

Overall Motor Length A 22.08 (6.73) 23.17 (7.06)Bix Box to Stabilizer B 1.00 (0.30) 1.00 (0.30)

Bit Box to Bend C 3.63 (1.11) 4.78 (1.46)

Bend Settings

Weight 920 (418) 924 (419)

Top Connection

Bit Connection

Max WOB

Max Backreaming




Operational Data

gpm (lpm) 100-250 (380-950)

RPM 330-830

ft-lb (Nm) 980 (1330)

ft-lb (Nm) 1470 (1990)

Rev/gal (Rev/l) 3.300 (0.872)

psi (KPa) 1050 (7240)

hp (kW) 125 (93)

psi (KPa) 230 (1590)

1/2

7

ft (m)ft (m)

ft (m)

degree

lb (kg) 20000 (9080)

lb (kg)

Box 3 1/2 API Reg. or 3 1/2 IF or 3 1/2 X-Hole

Box 3 1/2 API Reg.

0-3

lb (kg) 320000 (145280)

lb (kg) 670000 (304180)

lb (kg) 8700 (3950)

lb (kg) 60000 (27240)


32/83

Flow Rate

Bit Speed

Torque

Stall Torque


Power

Off Bottom Pressure

Specific Rotation

Lobes

Stages

Fixed Adjustable

Overall Motor Length A 27.92 (8.51) 29.0 (8.84)


Bit Box to Bend C 3.63 (1.11) 4.78 (1.46)

Bend Settings

Weight 1165 (527) 1210 (548)

Top Connection

Bit Connection

Max WOB

Max Backreaming




Operational Data

gpm (lpm) 150-300 (570-1140)

RPM 287-574

ft-lb (Nm) 1900 (2580)

ft-lb (Nm) 2850 (3860)

Rev/gal (Rev/l) 1.913 (0.505)

psi (KPa) 1280 (8790)

psi (KPa) 230 (1590)

hp (kW) 181 (135)

2/3

8.5

ft (m)

ft (m)

ft (m)

degree 0-3

lb (kg)


Box 3 1/2 API Reg.

lb (kg) 20000 (9080)

lb (kg) 8400 (3810)

lb (kg) 60000 (27240)

lb (kg) 320000 (145280)

lb (kg) 670000 (304180)



0

100

200

300

400

500

600

0 200 400 600 800 1000 1200 1400 1600


RPM

0

400

800

1200

1600

2000

2400

Torque(ft-lb)

300 gpm

225 gpm

150 gpm



ANGLE

5.875 6.125 6.75 7.875 5.875 6.125 6.75 7.875

0.25 N/A N/A N/A N/A 1.1 1.3 1.7 2.4

0.50 1.3 0.3 N/A N/A 2.7 2.9 3.3 4.0

0.75 3.1 2.1 N/A N/A 4.3 4.5 4.9 5.61.00 4.8 3.8 1.3 N/A 5.9 6.1 6.5 7.2

1.25 6.6 5.6 3.0 N/A 7.6 7.7 8.1 8.8

1.50 8.4 7.3 4.8 0.2 8.4 9.3 9.7 10.4

1.75 8.4 9.1 6.6 2.0 8.4 9.1 11.3 12.0

2.00 8.4 9.7 8.3 3.8 8.4 9.7 8.3 13.6

2.25 8.4 9.7 10.1 5.5 8.4 9.7 10.1 15.3

2.50 8.4 9.7 11.8 7.3 8.4 9.7 11.8 16.9

2.75 8.4 9.7 13.6 9.0 8.4 9.7 13.6 17.5

3.00 8.4 9.7 13.7 10.8 8.4 9.7 13.7 17.5

0.39 1.1 0.3 N/A N/A 1.8 2.0 2.3 3.0

0.78 3.7 2.9 1.0 N/A 4.1 4.3 4.6 5.3

1.15 6.2 5.4 3.5 0.1 6.3 6.5 6.8 7.51.50 8.6 7.8 5.9 2.5 8.6 8.6 8.9 9.6

1.83 8.6 10.1 8.1 4.7 8.6 10.1 10.9 11.5

2.12 8.6 10.1 10.1 6.7 8.6 10.1 12.6 13.3

2.38 8.6 10.1 11.9 8.4 8.6 10.1 11.9 14.8

2.60 8.6 10.1 13.4 9.9 8.6 10.1 13.4 16.1

2.77 8.6 10.1 14.5 11.1 8.6 10.1 14.5 17.1

2.89 8.6 10.1 14.5 11.9 8.6 10.1 14.5 17.9

2.97 8.6 10.1 14.5 12.4 8.6 10.1 14.5 18.3

3.00 8.6 10.1 14.5 12.6 8.6 10.1 14.5 18.5

HOLE SIZE HOLE SIZE

ADJUSTABLE HSG

FIXED HSG

Slick Stabilized


Disclaimer: The predicted build rates are calculated based upontheoretical 3-point contact between the bit, upper stabilizer andeither lower stabilizer or kickpad. Factors such as the forma-tion characteristics, bit type, weight on bit, hole gauge, and holeangle can affect the actual build rate.


A

C

B

4 G22/3 8.5

59 60


33/83

Flow Rate

Bit Speed

HBR & HSN HR

Torque 2460 (3340) 3690 (5010)

Stall Torque 3690 (5000) 5535 (7500)

Max Differential Pressure 900 (6210) 1350 (9315)

Power 107 (80) 160 (120)

Off Bottom Pressure 120 (830)

Specific Rotation

Lobes

Stages

Fixed Adjus table



Bit Box to Bend C 3.63 (1.11) 4.78 (1.46)

Bend Settings

Weight 910 (413) 914 (415)

Top Connection

Bit Connection

Max WOB

Max Backreaming




Rev/gal (Rev/l) 1.020 (0.270)

4/5

6

degree 0-3

lb (kg)


psi (KPa)

hp (kW)

lb (kg) 20000 (9080)

psi (KPa)

ft (m)

ft (m)

Box 3 1/2 API Reg.

ft (m)

lb (kg)

lb (kg) 670000 (304180)

lb (kg) 60000 (27240)

lb (kg) 320000 (145280)

7900 (3590)

Operational Data

gpm (lpm) 100-250 (380-950)

RPM 102-260

ft-lb (Nm)

ft-lb (Nm)



0

50

100

150

200

250

300

0 200 400 600 800 1000 1200 1400 1600


RPM

0

700

1400

2100

2800

3500

4200

T

orque(ft-lb)

250 gpm

175 gpm

100 gpm




BEND

ANGLE

5.875 6.125 6.75 7.875 5.875 6.125 6.75 7.875

0.25 N/A N/A N/A N/A 1.7 2.0 2.6 3.8

0.50 1.9 0.7 N/A N/A 3.7 3.9 4.6 5.80.75 4.2 2.9 N/A N/A 5.7 5.9 6.6 7.7

1.00 6.4 5.2 2.1 N/A 7.6 7.9 8.5 9.7

1.25 8.6 7.4 4.3 N/A 9.6 9.9 10.5 11.7

1.50 10.8 9.6 6.5 1.0 11.6 11.8 12.5 13.7

1.75 13.1 11.8 8.7 3.2 13.6 13.8 14.5 15.6

2.00 15.3 14.0 11.0 5.4 15.5 15.8 16.4 17.6

2.25 17.5 16.3 13.2 7.6 17.5 17.8 18.4 19.6

2.50 19.7 18.5 15.4 9.9 19.7 19.8 20.4 21.6

2.75 22.0 20.7 17.6 12.1 22.0 21.7 22.4 23.5

3.00 23.9 22.9 19.9 14.3 23.4 23.7 24.4 25.5

0.39 1.5 0.6 N/A N/A 2.5 2.7 3.3 4.4

0.78 4.8 3.9 1.6 N/A 5.3 5.5 6.1 7.1

1.15 8.0 7.1 4.7 0.5 8.0 8.1 8.7 9.8

1.50 11.0 10.0 7.7 3.5 11.0 10.6 11.2 12.3

1.83 13.8 12.8 10.5 6.3 13.8 13.0 13.6 14.6

2.12 16.2 15.3 13.0 8.8 16.2 15.3 15.6 16.7

2.38 18.4 17.5 15.2 11.0 18.4 17.5 17.5 18.6

2.60 20.3 19.4 17.0 12.8 20.3 19.4 19.1 20.1

2.77 21.7 20.8 18.5 14.3 21.7 20.8 20.3 21.3

2.89 22.8 21.8 19.5 15.3 22.8 21.8 21.1 22.2

2.97 23.4 22.5 20.2 16.0 23.4 22.5 21.7 22.8

3.00 23.7 22.8 20.4 16.2 23.7 22.8 21.9 23.0

HOLE SIZE HOLE SIZE

ADJUSTABLE HSG


FIXED HSG

Slick Stabilized


A

C

B

4 G24/5 6.0

61 62


34/83



0

20

40

60

80

100

120

140

160

0 100 200 300 400 500 600 700Differential Pressure (psi)

RPM

0

375

750

1125

1500

1875

2250

2625

3000

Torque(ft-lb)

Flow Rate

Bit Speed

HBR & HSN HR

Torque 1640 (2220) 2460 (3330)

Stall Torque 2470 (3350) 3705 (5025)

Max Differential Pressure 330 (2280) 495 (3420)

Power 36 (27) 54 (40.5)

Specific Rotation

Lobes

Stages

Fixed Adjustable



Bit Box to Bend C 3.63 (1.11) 4.78 (1.46)

Bend Settings

Weight 663 (301) 677 (307)

Top Connection

Bit Connection

Max WOB

Max Backreaming




Off Bottom Pressure psi (KPa) 50 (345)

Rev/gal (Rev/l) 0.543 (0.143)

7/8

2.2

0-3

lb (kg)


psi (KPa)

hp (kW)

lb (kg) 20000 (9080)

ft (m)

ft (m)

Box 3 1/2 API Reg.

ft (m)

degree

lb (kg)

lb (kg) 670000 (304180)

lb (kg) 60000 (27240)

lb (kg) 320000 (145280)

11700 (5310)

Operational Data

gpm (lpm) 100-250 (380-950)

RPM 54-140

ft-lb (Nm)

ft-lb (Nm)

250 gpm

175 gpm

100 gpm




BEND

ANGLE

5.875 6.125 6.75 7.875 5.875 6.125 6.75 7.875

0.25 0.0 N/A N/A N/A 2.7 3.2 4.5 6.7

0.50 3.0 1.3 N/A N/A 5.3 5.8 7.0 9.30.75 6.0 4.4 0.2 N/A 7.8 8.3 9.6 11.8

1.00 9.1 7.4 3.2 N/A 10.4 10.9 12.1 14.4

1.25 12.1 10.4 6.2 N/A 12.9 13.4 14.7 16.9

1.50 15.1 13.4 9.2 1.7 15.5 16.0 17.2 19.5

1.75 18.1 16.4 12.3 4.7 18.1 18.5 19.8 22.0

2.00 21.1 19.5 15.3 7.7 21.1 21.1 22.3 24.6

2.25 24.2 22.5 18.3 10.8 24.2 23.6 24.9 27.1

2.50 27.2 25.5 21.3 13.8 27.2 26.2 27.4 29.7

2.75 30.2 28.5 24.3 16.8 30.2 28.7 30.0 32.2

3.00 33.2 31.6 27.4 19.8 33.2 31.6 32.5 34.8

0.39 2.4 1.2 N/A N/A 3.5 3.9 5.0 7.0

0.78 6.8 5.6 2.5 N/A 7.0 7.4 8.5 10.4

1.15 11.0 9.8 6.7 1.1 11.0 10.7 11.8 13.71.50 15.0 13.8 10.7 5.1 15.0 13.8 14.9 16.8

1.83 18.7 17.5 14.4 8.8 18.7 17.5 17.8 19.7

2.12 22.0 20.8 17.7 12.1 22.0 20.8 20.4 22.3

2.38 25.0 23.7 20.6 15.0 25.0 23.7 22.7 24.6

2.60 27.5 26.2 23.1 17.5 27.5 26.2 24.6 26.6

2.77 29.4 28.2 25.1 19.5 29.4 28.2 26.1 28.1

2.89 30.8 29.5 26.4 20.8 30.8 29.5 27.2 29.1

2.97 31.7 30.4 27.3 21.7 31.7 30.4 27.9 29.8

3.00 32.0 30.8 27.7 22.1 32.0 30.8 28.2 30.1

HOLE SIZE HOLE SIZE

ADJUSTABLE HSG

THEORETICAL BUILD RATESFIXED HSG

Slick Stabilized


A

C

B

4 G27/8 2.2

63 64


35/83



0

10

20

30

40

50

60

70

80

90

0 100 200 300 400 500Differential Press ure (psi)

RPM

0

500

1000

1500

2000

2500

3000

3500

4000

4500

Torque(ft-lb)

300 gpm

225 gpm

150 gpm



BEND

ANGLE

5.875 6.125 6.75 7.875 5.875 6.125 6.75 7.875

0.25 N/A N/A N/A N/A 1.4 1.6 2.0 2.9

0.50 1.6 0.5 N/A N/A 3.1 3.3 3.8 4.60.75 3.5 2.5 N/A N/A 4.9 5.0 5.5 6.4

1.00 5.4 4.4 1.7 N/A 6.6 6.8 7.3 8.1

1.25 7.4 6.3 3.6 N/A 8.3 8.5 9.0 9.9

1.50 9.3 8.2 5.6 0.8 10.1 10.3 10.7 11.6

1.75 11.2 10.1 7.5 2.7 11.8 12.0 12.5 13.3

2.00 13.1 12.1 9.4 4.6 13.6 13.7 14.2 15.1

2.25 15.1 14.0 11.3 6.5 15.3 15.5 16.0 16.8

2.50 17.0 15.9 13.2 8.4 17.0 17.2 17.7 18.6

2.75 18.9 17.8 15.2 10.4 18.9 19.0 19.4 20.3

3.00 20.8 19.8 17.1 12.3 20.8 20.7 21.2 22.0

0.39 1.3 0.5 N/A N/A 2.1 2.3 2.7 3.5

0.78 4.1 3.3 1.3 N/A 4.6 4.8 5.2 6.0

1.15 6.9 6.1 4.0 0.4 6.9 7.1 7.6 8.4

1.50 9.5 8.6 6.6 3.0 9.5 9.4 9.8 10.6

1.83 11.9 11.1 9.1 5.4 11.9 11.5 11.9 12.7

2.12 14.0 13.2 11.2 7.6 14.0 13.3 13.7 14.5

2.38 15.9 15.1 13.1 9.5 15.9 15.1 15.4 16.2

2.60 17.6 16.8 14.7 11.1 17.6 16.8 16.8 17.6

2.77 17.6 18.0 16.0 12.4 17.3 18.0 17.9 18.7

2.89 17.6 18.9 16.9 13.2 18.0 18.9 18.7 19.4

2.97 17.6 19.5 17.5 13.8 18.6 19.5 19.2 20.0

3.00 17.6 19.7 17.7 14.1 18.7 19.7 19.4 20.1

HOLE SIZE HOLE SIZE

ADJUSTABLE HSG


FIXED HSG

Slick Stabilized

Disclaimer: The predicted build rates are calculated based upontheoretical 3-point contact between the bit, upper stabilizer andeither lower stabilizer or kickpad. Factors such as the formationcharacteristics, bit type, weight on bit, hole gauge, and hole

angle can affect the actual build rate.


A

C

B

4 G27/8 2.6

65 66

Flow Rate

Bit Speed

Torque

Stall Torque


Power

Specific Rotation

Lobes

Stages

Fixed Adjustable



Bit Box to Bend C 3.63 (1.11) 4.78 (1.46)

Bend Settings

Weight 1057 (480) 1055 (479)

Top Connection

Bit Connection

Max WOB

Max Backreaming




psi (KPa) 390 (2690)

Off Bottom Pressure psi (KPa) 50 (345)

hp (kW) 46 (35)

lb (kg) 670000 (304180)

lb (kg) 60000 (27240)

lb (kg) 320000 (145280)

lb (kg) 20000 (9080)

lb (kg) 11000 (4990)

Box 3 1/2 API Reg.

0-3

lb (kg)

Box 3 1/2 API Reg. or 3 1/2 I F or 3 1/2 X-Hole

ft (m)

pathfinder motor handbook

Documents