sperry drilling downhole tools technical specifications

Sperry Drilling Downhole Tools Technical Specifications

The information contained in this document does not serve as any form of warranty regarding the performance of our tools or equipment. The highlighted data points and other information provided are solely intended to serve as threshold points where and/or when environmental parameters are known to cause tool damage and/or accelerated wear. This information should not be relied upon, as various factors may affect the results depending upon the circumstances. Halliburton shall not be held liable for any loss or damage resulting from the use of the information contained herein, regardless of cause, including any act or omission of Halliburton. Halliburton makes no warranties of any kind, express or implied, whether fitness for a particular purpose, merchantability or otherwise, as to the accuracy of any information.

Table of Contents

01 INTRODUCTION 5

02 TECHNICAL DATA SHEET CLARIFICATIONS 7

03 CRITERIA FOR HARSH ENVIRONMENT AND EXCEEDED SPECIFIED LIMITS 9

3.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

» 3.1.1 Measurement-While-Drilling/Logging-While-Drilling Tools . . . . . . . . . . . . . . . . . . . . 9

» 3.1.2 Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

» 3.1.3 Turbodrills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

» 3.1.4 Rotary Steerable Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

» 3.1.5 AGS™ Adjustable Gauge Stabilizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2 Sand Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.3 Low Gravity Solids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.4 Lost Circulation Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.5 Measurement-While-Drilling/Logging-While-Drilling Mass Flow Rate . . . . . . . . . . . . . . 11

3.6 Measurement-While-Drilling/Logging-While-Drilling Fluid Velocity Limits . . . . . . . . . . . 12

3.7 Weight-on-bit/Revolutions per Minute Limits for Tool String Operation . . . . . . . . . . . . 12

» 3.7.1 Measurement-While-Drilling/Logging-While-Drilling Collars . . . . . . . . . . . . . . . . . 12

» 3.7.2 Rotary Steerable Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

» 3.7.3 Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

» 3.7.4 Turbodrills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.8 Torque Limits for Tool String Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.9 Dogleg Severity Limits for Tool Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

» 3.9.1 Measurement-While-Drilling/Logging-While-Drilling Tools . . . . . . . . . . . . . . . . . . . 14

» 3.9.2 Rotary Steerable Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

» 3.9.3 Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

» 3.9.4 Turbodrills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.10 Overpull . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

» 3.10.1 Overpull for Logging-While-Drilling Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

» 3.10.2 Overpull for Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

» 3.10.3 Overpull for Turbodrills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

» 3.10.4 Overpull for Rotary Steerable Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

04 DRILLSTRING VIBRATION 23

4.1 Vibration Operating Limit Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2 Vibration Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

05 OTHER CIRCUMSTANCES THAT CAUSE SPECIFIED LIMITS TO BE EXCEEDED 29

Downhole Equipment Technical Specification Information

01IntroductionThis document provides information on the operation and handling of equipment supplied by Sperry Drilling. All equipment supplied by Sperry Drilling has a specified maximum limit of operation. Operating the equipment close to these specified limits for certain parameters will cause accelerated wear or damage to the equipment. Operating ranges for Sperry Drilling equipment are defined as follows:

» Normal Operating Range — The tools are run below the specified limit of operation or the start of the harsh environment range if applicable.

» Harsh Environment Range — The tools are run below the specified limit of operation, but the conditions are at or close to the maximum limit, which causes accelerated wear or possible damage to the equipment.

» Exceeded Specified Limit — The tools are run in conditions outside of their designed operating limits, and immediate damage to, or excessive wear of, the tool is likely to occur.

Use of the equipment in either a harsh environment or above the specified limit reduces its useful life. A repair charge will apply if a tool is used in a Harsh Environment Range, and a higher charge will apply if a tool has Exceeded a Specified Limit (ESL). The Price Book specifies these additional charges.

The following sections define the Harsh Environment Range and specified limit of the controlling technical specifications (e.g., temperature, weight on bit, dogleg severity, vibration, revolutions per minute (RPM), flow rate, pressure, solids percent, and sand percent).

Certain operational circumstances that immediately exceed the design specification of the tools are also identified, (e.g., rotation of the tools with no mud flow). If the equipment is operated under any of these identified conditions, it is regarded as Exceeding the Specified Limit.

Where a specified limit has been exceeded, any subsequent equipment failure will be deemed to be caused by improper use of the tool and any nonproductive time should, therefore, not be attributed to Sperry Drilling.

HA

L123

725

5

02Technical Data Sheet Clarifications

» Stated tool diameter, length, and sensor distances are nominal tool dimensions.

» Maximum tool rotation is the rotational speed of the sub, collar, motor, or rotary steerable in revolutions per minute.

» The maximum rotation level stated is only for drilling ahead in a new formation. When drilling cement or rotating off bottom, the maximum rotational level will need to be reduced based on the specific operation. Any maximum rotation speed will also have to be determined by the specific operation and with reference to vibration measurements.

» The torque specifications provided in the Technical Data Sheets are right-hand (clockwise, looking downhole) torque.

» Maximum pressure, as stated in the Technical Data Sheets, is hydrostatic plus circulating pressure.

» Certain tools may have individual specifications that differ from values contained in this document arising from unique design requirements for that tool. The individual tool data sheet or the DS-1 transmittal report will identify these exceptions.

554_

01A

2624

7

03Criteria for Harsh Environment and Exceeded Specified Limits

For all Sperry Drilling tool strings, the operating limit is determined by the component in the tool string with the lowest specified limit.

Certain operating limits can be increased by following the Halliburton Management of Change (MOC) process and obtaining approval from Sperry Global Operations.

3.1 TEMPERATURE

High temperature is detrimental to the electronics, solders, and elastomers used in Sperry Drilling tools, and this degradation increases exponentially as temperature increases.

The table below details the start of the Harsh Environment Range and thespecified limit for the tools.

3.1.1 Measurement-While-Drilling/Logging-While-Drilling Tools

Harsh Environment Range Specified Limit

Standard Tools above 125°C (257°F) 150°C (302°F)

SOLAR® Tools above 150°C (302°F) 175°C (347°F)

Quasar Pulse M/LWD Service above 175°C (347°F) 200°C (392°F)

3.1.2 MotorsThe temperature limit for Sperry Drilling motors is dependent on the motor type and on the operating differential pressure used while drilling. Contact your Sperry Drilling representative for the specified limits of the equipment intended for use.

HA

L587

89

9

3.1.3 Turbodrills


Equipped with HNBR Radial Bearings

above 150°C (302°F)* 180°C (356°F)*

Equipped with Metallic Radial Bearings

N/A 300°C (572°F)

* The maximum operating static downhole temperature for hydrogenated nitrile butadiene rubber (HNBR) bearings is 150°C (302°F), operations at higher temperatures, up to 180°C (356°F) require increased bearing clearances. Contact your Sperry Drilling turbodrill representative.

3.1.4 Rotary Steerable Systems


Geo-Pilot® (All Sizes) Standard RSS

above 125°C (257°F) 150°C (302°F)

Geo-Pilot® (All Sizes) SOLAR RSS

150°C (302°F) 175°C (347°F)

iCruise® (All Sizes) 125°C (257°F) 150°C (302°F)

3.1.5 AGS™ Adjustable Gauge Stabilizers


AGS™ Stabilizers above 175°C (347°F) 204°C (400°F)

Standard Seals above 110°C (230°F) 121°C (250°F)

Optional Seals above 175°C (347°F) 204°C (400°F)

3.2 SAND CONTENT

A sand content of 2 percent is the specified limit for all measurement-while-drilling/logging-while-drilling (M/LWD) tools, except for the 7-3/4-inch, 8-inch, and 9-1/2-inch positive pulse systems. For the 7-3/4-inch, 8-inch, and 9-1/2-inch positive pulse systems at flow rates of more than 1,100 gpm/4,164 lpm, the sand content is limited to 1 percent or less and the bit run duration is limited to 75 hours.

Turbodrills should be limited to a sand content of 1 percent for optimal efficiency. This can be increased up to a maximum of 2 percent, although a reduction in component life will occur. Contact your Sperry Drilling turbodrill representative if planning to run at these levels.

SperryDrill® and GeoForce® motors should be limited to a sand content of 1 percent for optimal efficiency. Sand is highly abrasive and high mud sand content can greatly accelerate motor component wear. Solids content should be minimized for given applications to promote reliability and longevity, and minimize wear and the possibility of internal motor blockage. Contact your Sperry Drilling representative if planning to run above these levels.

iCruise rotary steerable tools have a specified limit of 2 percent for all tool sizes.

HA

L386

1510 Sperry Drilling

3.3 LOW GRAVITY SOLIDS

A high concentration of low gravity solids (LGS) is detrimental to the performance of all downhole tools and can lead to tool erosion. A concentration of 6% LGS is the specified limit for all Sperry downhole tools.

3.4 LOST CIRCULATION MATERIALS

The positive pulser has a limit of 40 lbm/bbl (114 kg/m3) medium nutplug, fine Kwik-Seal® lost circulation material (LCM), except for the 3-1/8-inch tools which are limited to 20 lbm/bbl (57 kg/m3).

The JetPulse® Telemetry has a limit of 150 lbm/bbl (427 kg/m3) medium nutplug, fine Kwik-Seal LCM.

Fibrous LCM is not recommended and may lead to interruption in real-time mud pulse telemetry. Strict adherence to the LCM manufacturer’s recommended concentration and mixing guidelines is required.

Turbodrills can tolerate granular and limited fibrous LCMs. Nutplug LCM is not recommended, as it can lock the turbodrill’s internal components. Contact your Sperry Drilling turbodrill representative for detailed information on products and concentrations that are compatible with the turbodrills and materials that are incompatible.

iCruise has an LCM limit of TIER-1 50 lb/bbl / TIER-2 84 lb/bbl – WAL-NUTT® Medium.

3.5 MEASUREMENT-WHILE-DRILLING/LOGGING-WHILE-DRILLING MASS FLOW RATE

All insert based tool sizes have a mass flow limit, ppg x gpm (kg/l x lpm).

Tool Size lbm/min kg/min

9.5 in. 20,000 9,070

8 in. High Flow 20,000 9,070

8 in. 10,000 4,535

7.25 in. 10,000 4,535

6.75 in. 10,000 4,535

6.5 in. 10,000 4,535

4.75 in.* 5,000 2,268

3.125 in. 1,800 816

*For the 4-3/4-inch Pulser the mass flow limit is 3,750 lbm/min (1700 kg/min).

HA

L398

64

Downhole Equipment Technical Specification Information 11

3.6 MEASUREMENT-WHILE-DRILLING/LOGGING-WHILE-DRILLING FLUID VELOCITY LIMITS

All Sonde based tools have a velocity limit of 40 ft/sec (12.19 m/sec) within the annulus between the probe outside diameter (OD) and the drill collar inside diameter (ID).

3.7 WEIGHT-ON-BIT/REVOLUTIONS PER MINUTE LIMITS FOR TOOL-STRING OPERATION

The tool-string weight-on-bit (WOB) limit is set by the component in the tool string with the lowest limit and is valid for on-bottom drilling only.

When run in a drillstring without a motor, or when tools are run above a motor, the maximum RPM limit for all M/LWD systems and RSS is 180 RPM.

When run in a drillstring with a motor, the maximum RPM limit for all M/LWD systems and RSS run below the motor is 250 RPM. The maximum drillstring speed is the RPM limit of the motor being run.

The RPM limits for all tools when reaming off bottom are half the maximum RPM when drilling.

In specific cases, the RPM limits for all tools can be altered based on an assessment of the drilling environment and the mitigation practices in place by completing a Management of Change assessment and receiving approval from the appropriate global-level approvers.

3.7.1 Measurement-While-Drilling/Logging-While-Drilling Collars

M/LWD Collar Size WOB*

RPM (No Motor/

above Motor)

RPM (Below Motor)

9.50 in. 75,000 lbf/33,362 daN 180 250

8.00 in. 60,000 lbf/26,689 daN 180 250

6.75 in. 45,000 lbf/20,017 daN 180 250

4.75 in. 25,000 lbf/11,121 daN 180 250

3.125 in. 15,000 lbf/6,672 daN 180 250

* WOB limits for M/LWD collars are determined for 9-1/2-inch collars in a 17-1/2-inch hole, 8-inch collars in a 12-1/4-inch hole, 6-3/4-inch collars in an 8-1/2-inch hole and 4-3/4-inch in a 6-inch hole. Where the hole sizes are larger than those specified, then the WOB limit will need to be reduced to prevent damage to the equipment. Contact your Sperry Drilling representative for the specified limits of the equipment in the larger hole sizes.

HA

L378

13H

AL1

1957

12 Sperry Drilling


Tool Size WOBRPM

(No Motor)RPM

(Below Motor)

Geo-Pilot® 9600 100,000 lbf/44,482 daN 180 250

Geo-Pilot® 9600 Duro 100,000 lbf/44,482 daN 250 300

Geo-Pilot® 7600 55,000 lbf/24,465 daN 180 250


Geo-Pilot® 5200 25,000 lbf/11,121 daN 180 250


iCruise 9.5 in. (241 mm)

100000 lbf, 44482 daN 400 400


100000 lbf, 44482 daN 400 400


65000 lbf, 29913 daN 400 400


35000 lbf, 15569 daN 400 400

3.7.3 Motors

Motor Size WOB

String RPM Harsh

Environment Range[1]

String RPM Specified

Limit[2]

11.25 in. 115,000 lbf/51,155 daN above 80 120

9.625 in. 90,000 lbf/40,034 daN above 80 120

8.00 in. 80,000 lbf/35,586 daN above 80 120

7.00 in. 6.75 in. 6.50 in.

50,000 lbf/22,241 daN above 80 120

6.25 in. 40,000 lbf/17,793 daN above 80 120

5.00 in. 4.75 in.

25,000 lbf/11,121 daN above 80 120

3.625 in. 14,000 lbf/6,228 daN above 80 120

[1] RPM values are based on a 0-degree bend motor. For bent motors, guidelines for safe rotation based on motor sizes, bend setting, and sliding dogleg severity (DLS) are provided in sections 1.1.18 and 2.2.5 of the SperryDrill® Technical Information Handbook so that the motor is operated below the endurance limit.

[2] For reaming operations with motors: A minimum reduction of 30 percent of flow rate and 50 percent string RPM is required.

HA

L398

16

Downhole Equipment Technical Specification Information 13Downhole Equipment Technical Specification Information

3.7.4 Turbodrills

Turbodrill Size WOB

String RPM Harsh

Environment Range

String RPM Specified

Limit*

9.625 in. 66,000 lbf/29,358 daN above 80 150

8.00 in. 49,000 lbf/21,796 daN above 80 150

6.75 in. 33,000 lbf/14,679 daN above 80 150

4.75 in. 16,000 lbf/7,117 daN above 80 150

*For reaming operations with turbodrills refer to the Operations Manual D01275016

3.8 TORQUE LIMITS FOR TOOL STRING OPERATION

The torque limits for the tool string are dependent on the the components selected. The torque limits can be obtained from the DS-1 transmittal report that accompanies the drill string. The values quoted are the overload limit for the components as calculated per the DS-1 standard methodology for specialty tools.

3.9 DOGLEG SEVERITY LIMITS FOR TOOL OPERATIONS

Rotating or sliding tools through high doglegs will result in additional wear and fatigue to the equipment. The tables below detail the Harsh Environment Range and the specified limits for various types of tools.

3.9.1 Measurement-While-Drilling/Logging-While-Drilling Tools

Collar Size Harsh Operating Zone Specified Limit

9.5 in. 8.00 in. 7.75 in.

Rotating above 6 deg/100 ft Non-Rotating above 12 deg/100 ft

Rotating 8 deg/100 ft Non-Rotating 14 deg/100 ft

6.50 in. 6.75 in.7.25 in.



4.75 in. 3.375 in.3.50 in. 3.125 in.

Rotating above 12 deg/100 ftNon-Rotating above 28 deg/100 ft

Rotating 14 deg/100 ftNon-Rotating 30 deg/100 ft

HA

L371

23H

AL3

8931

14 Sperry Drilling

HA

L326

89


Tool Size Harsh Operating Zone Specified Limit

Geo-Pilot® 9600Rotating above 6 deg/100 ft

Non-Rotating above 12 deg/100 ftRotating 8 deg/100 ft

Non-Rotating 14 deg/100 ft







Geo-Pilot® 9600 Duro

Rotating above 8 deg/100 ftNon-Rotating above 12 deg/100 ft










Rotating above 5 deg/100 ft Non-Rotating above

14 deg/100 ft

iCruise 8.00 in. (203 mm) No Flex



14 deg/100 ft

iCruise 8.00 in. (203 mm) Flex

Rotating above 6.5 deg/100 ft Non-Rotating above 14 deg/100 ft

Rotating above 8.5 deg/100 ft Non-Rotating above

14 deg/100 ft




21 deg/100 ft

iCruise 6.75 in. (171mm) Flex



21 deg/100 ft*

iCruise 6.75 in. (171 mm) Superflex



21 deg/100 ft*




30 deg/100 ft

iCruise 4.75 in. (121 mm) Superflex



30 deg/100 ft

* Additional flex components in the BHA may be required above the iCruise for high dogleg applications.

HA

L346

0916 Sperry Drilling

3.9.3 MotorsThe maximum dogleg severity for motors is dependent on the motor type, size, and bend setting; the dogleg severity limit of bent motors is specified in Section 1.10 of the SperryDrill® Technical Information Handbook. Contact your Sperry Drilling representative for the specified limits of the equipment intended for use.

3.9.4 TurbodrillsThe maximum dogleg severity for turbodrill equipment is calculated on a job-to-job basis. Contact your Sperry Drilling representative for the specified limits of the equipment intended for use.

3.10 OVERPULL

3.10.1 Overpull for Logging-While-Drilling ToolsOverpull limits for LWD tools are defined by the DS-1 standard analysis performed on every tool, and the limits for a specific string of LWD tools will be included in the DS-1 transmittal that should accompany the tools.

The following tables provide generic limits for connections on tools fabricated from austenitic-nonmagnetic material and are calculated as the force required to yield the pin under the defined makeup conditions. The pin area does not depend on the OD of the collar. Calculated overpull limits assume the case of steady pull on the collars. If shock forces are going to be applied, such as when jarring, it is recommended to have a safety factor of at least 0.5 (multiply the overpull values in the tables by 0.5).

Connection: NC38 (3-1/2 IF) Used on 4.75 in M/LWD

Stress Level in Rotary Shoulder Connection During Makeup

62,500 psi/431 MPa

Yield Strength 130,000 psi/896 MPa

Coefficient of Friction 0.08

HA

L307

54

ID Force

1.00 in.850,238 lbf / 378,205 daN

1.25 in.811,362 lbf / 360,912 daN

1.50 in.763,845 lbf / 339,775 daN

1.75 in.707,689 lbf / 314,796 daN

2.00 in.642,894 lbf / 285,974 daN

ID Force

2.25 in.569,458 lbf / 253,308 daN

2.50 in.487,385 lbf / 216,800 daN

2.75 in.396,671 lbf / 176,448 daN

3.00 in.297,318 lbf / 132,254 daN




62,500 psi/431 MPa



ID Force

1.75 in.1,304,409 lbf / 580,230 daN

2.00 in.1,245,504 lbf / 554,028 daN

2.25 in.1,178,745 lbf / 524,332 daN

2.50 in.1,104,132 lbf / 491,142 daN

2.75 in.1,021,666 lbf / 454,460 daN

ID Force

3.00 in.931,345 lbf / 414,283 daN

3.25 in..833,170 lbf / 370,613 daN

3.50 in727,141 lbf / 323,448 daN

3.75 in.613,258 lbf / 272,791 daN



62,500 psi/431 MPa



ID Force

2.00 in.1,698,698 lbf / 755,619 daN

2.25 in.1,631,939 lbf / 725,923 daN

2.50 in.1,557,326 lbf / 692,733 daN

2.75 in.1,474,859 lbf / 656,050 daN

3.00 in.1,384,538 lbf / 615,873 daN

ID Force

3.25 in.1,286,364 lbf / 572,203 daN

3.50 in.1,180,335 lbf / 525,039 daN

3.75 in.1,066,452 lbf / 474,382 daN

4.00 in.944,715 lbf / 420,230 daN

18 Sperry DrillingSperry Drilling

HA

L306

75

Connection: 7-5/8 REG Used on 9.50-in. M/LWD


62,500 psi/431 MPa



ID Force

2.50 in.2,276,589 lbf / 1,012,677 daN

2.75 in.2,194,122 lbf / 975,994 daN

3.00 in.2,103,801 lbf / 935,817 daN

3.25 in.2,005,626 lbf / 892,147 daN

3.50 in.1,899,598 lbf / 844,983 daN

ID Force

3.75 in.1,785,714 lbf / 794,325 daN

4.00 in.1,663,978 lbf / 740,174 daN

4.25 in.1,534,387 lbf / 682,529 daN

4.50 in.1,396,942 lbf / 621,391 daN

3.10.2 Overpull for MotorsThe maximum overpull for motors is dependent on the motor size and bend setting. For straight motors in straight hole applications, permissible overpull values that may be applied to the motor housings or bit, and, therefore, driveshaft and thrust bearings, can be obtained from the individual motor specifications in Section 1.2 of the SperryDrill® Technical Information Handbook.

The application of high overpull loads on bent housing motors, particularly in doglegs, can result in high bending stress levels in motor housings and connections. If possible, bent housing motors should be oriented so the bend follows the hole curvature, prior to the application of overpull loads. In high dogleg situations, directional drilling support personnel should be contacted to obtain correct overpull values.


3.10.3 Overpull for Turbodrills

Turbodrill Size

Max. Body Overpull (Allowing Continued Operation)

Ultimate Body Overpull

(Operation Discontinued)

Max. Bit Overpull While

Turbodrill is Not Operating(Allowing Continued Operation)

Ultimate Bit Overpull While

Turbodrill isNot Operating


4.75 in.85,000 lbf /37,810 daN

150,000 lbf / 66,723 daN

50,000 lbf /22,241 daN

90,000 lbf /40,034 daN

6.75 in.250,000 lbf /111,206 daN

350,000 lbf /155,688 daN

80,000 lbf /35,586 daN

150,000 lbf /66,723 daN

8.00 in.315,000 lbf /140,119 daN

450,000 lbf /200,170 daN

112,000 lbf /49,820 daN

225,000 lbf /100,085 daN

9.625 in.400,000 lbf /177,929 daN

600,000 lbf /266,893 daN

120,000 lbf /53,379 daN

300,000 lbf /133,333 daN

* The application of high overpull loads on adjustable turbodrills, particularly in doglegs, can result in high bending stress levels in housings and connections. If possible, adjustable turbodrills should be oriented so the bend follows the hole curvature, prior to the application of overpull loads.

20 Sperry Drilling

HA

L398

12

3.10.4 Overpull for Rotary Steerable Tools

Type Series

Max. Body Overpull (Allowing Continued Operation)

Ultimate Body

Overpull (Operation

Discontinued)

Max. Bit Overpull While

Motor is Not Operating

(Allowing Continued Operation)

Ultimate Bit Overpull While

Motor isNot Operating


Geo-Pilot® (All RSS)

520060,000 lbf /26,689 daN

320,000 lbf /142,343 daN


760075,000 lbf /33,362 daN

375,000 lbf /166,808 daN


9600120,000 lbf /53,379 daN

580,000 lbf /257,997 daN

Geo-Pilot® GXT RSS* 5200

29,000 lbf /12,900 daN

87,000 lbf /38,700 daN


75,000 lbf /33,362 daN

215,000 lbf /95,637 daN


121,000 lbf /53,823 daN

341,000 lbf /151,684 daN


340,000 lbf / 151,240 daN


822,684 lbf / 365,948 daN


1,088,000 lbf / 483,966 daN


1,500,000 lbf / 667,233 daN

* For the Geo-Pilot® GXT configuration, the maximum bit overpull for the motor defines the operating limit, as this is connected to the rotary steerable tool.


04Drillstring Vibration

Tools that are subjected to vibration and shocks will have their expected life reduced or will incur serious damage. Tools that contain electronics and sensor packages are particularly vulnerable.

During drilling, reaming, and backreaming operations, vibration levels must be closely monitored and maintained below the specified limit of the tools being used by applying vibration management procedures. It is accepted that tools may be briefly exposed to high levels of vibration before the vibration is controlled and hopefully eliminated. Damage may result when these high levels of vibration are sustained.

The following tables define low, medium, and high levels of vibration severity together with the specified limits for various types of tools.

The specified limit is defined by reference to the measured severity of the vibration and either its duration or number of events; the tool is deemed to have Exceeded Specified Limits when one of the criteria is exceeded. The durations or number of events are cumulative for the individual tool string being run.

The Harsh Environment Range is entered into when equipment is subjected to high (red) vibration levels on any axis for any period of time or to a number of events that are less than that defined for the specified limit.

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L353

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23

MWD, LWD AND ROTARY STEERABLE TOOL VIBRATION

OPERATING LIMITS (DDSr™, M5-DDS2, GEO-PILOT TEM)

X axis accelerometers are mounted radially. Y axis accelerometers are mounted tangentially. Z axis accelerometers are mounted axially.

9 1/2” tools / Geo-Pilot 9600 / Geo-Pilot 9600 Duro: Ave Acceleration2g 4g

Ave X & Ave Y LOW MEDIUM HIGH

2g 4g

Ave Z LOW MEDIUM HIGH

-2g -1g 0g

Ave X-Ave Y HIGH MEDIUM LOW

8” tools / Geo-Pilot 7600 / Geo-Pilot 7600 Duro: Ave Acceleration3g 5g


2g 4g


-2g -1g 0g


6 3/4” tools and Smaller Tools / Geo-Pilot 5200 / Geo-Pilot 5200

Duro: Ave Acceleration3g 6g


2g 4g


-2g -1g 0g


All Tool Sizes: Peak Accelerations30g 90g

Peak X & Y LOW MEDIUM HIGH

15g 40g

Peak Z LOW MEDIUM HIGH

DDS Avg X

DDS Avg Y

DDS Avg Z

DDS Peak X

DDS Peak Y

DDS Peak Z

VIBRATION SEVERITY VIBRATION SEVERITY

LOW MED HIGH LOW MED HIGH

g100 20

g0-10 10

g100 20

g1000 200

g100200 20

g0-100 100

4.1 VIBRATION OPERATING LIMIT TABLES

24 Sperry Drilling

All Tool Sizes: M5-DDS2 Shock (Short Average) Acceleration 15g 30g

Peak X & Y LOW MEDIUM HIGH

10g 20g

Peak Z LOW MEDIUM HIGH

Average X, Y in the high zone for 18 minutes or greater and tools have exceeded specified limits. For certain Geo-Pilot Duro BHA’s the limit is 30 minutes.

Average Z in the high zone for 8 minutes or greater and tools have exceeded specified limits. For certain Geo-Pilot Duro BHA’s the limit is 15 minutes.

Average X-Average Y in the high zone for 18 minutes or greater and tools have exceeded specified limits.

Peak X or Y in the high zone for 150 events or greater and tools have exceeded specified limits. For certain Geo-Pilot Duro BHA’s the limit is 250 events.

Peak Z in the high zone for 100 events or greater and tools have exceeded specified limits. For certain Geo-Pilot Duro BHA’s the limit is 150 events.

For details of Geo-Pilot Duro BHA’s contact your Sperry representative

DDSr™ STICK-SLIP INDICATOR (SSI)

All Tools Torsional Efficiency %

0% 100% 150% 200%

SSI LOW MEDIUM HIGH

SSI between 100 percent and 150 percent for greater than 12 hours and tool is outside limits. SSI greater than150 percent for greater than 30 minutes and tool is outside limits. For certain Geo-Pilot Duro BHA’s the high threshold is 200% and the duration is 60 minutes.

Note: Contact your Sperry Drilling representative for details of the Geo-Pilot Duro BHA’s that can be run with the higher operating limits.

High-Speed Comms Port

Mud Resistivity and Temperature

EWR™-M5

Dynamic Motion Sensor

Azumuthal Gamma Ray

Pressure While Drilling

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L187

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GEO-PILOT® SYSTEM TORSIONAL EFFICIENCY MONITOR

All Tools Torsional Efficiency %

100% 50% 25% 0% -VE%

TEM LOW MEDIUM HIGH

TEM between 50 percent and 25 percent for greater than 12 hours and tool is outside limits. TEM less than 25 percent for greater than 30 minutes and tool is outside limits. For certain Geo-Pilot Duro BHA’s the high threshold is 0% and the duration is 60 minutes.

SONDE VIBRATION SEVERITY SENSOR (SVSS)

9-1/2-In. Tools: Average Acceleration2g 4g

Ave X LOW MEDIUM HIGH

2g 4g


8-In. Tools: Average Acceleration 3g 5g


2g 4g


6-3/4-In. and Smaller Tools: Average Acceleration

3g 6g


2g 4g


All Tool Sizes: Peak (Short Average) Acceleration 15g 30g


10g 20g


Average X in the high zone for 18 minutes or greater and tools have exceeded specified limits.

Average Z in the high zone for 8 minutes or greater and tools have exceeded specified limits.

Vibration Severity

GP Bit Deflection

LOW MED HIGH

25-100 -50

percent

GeoPilot Torsional Eff®

EXTREME

0 200

GP Bit Deflectionpercent100 0

GP Toolface Settingpercent-180 180

GP Housing Slippercent5 0

26 Sperry Drilling

Peak X in the high zone for 10 minutes or greater and tools have exceeded specified limits.

Peak Z in the high zone for 6.67 minutes or greater and tools have exceeded specified limits.

4.2 VIBRATION SENSORS

DDSr™ Drillstring Dynamics SensorThe DDSr™ is a three axis device. The X axis accelerometer is mounted radially, the Y axis accelerometer is mounted tangentially and the Z axis accelerometer is mounted axially. Rotation is measured using a gyroscope at temperatures below 130°C (266°F) and with magnetometers above this temperature limit; RPM changes from torsional vibrations are measured directly.

M5-DDS2 SensorThe M5-DDS2 sensor is a three-axis device built into the M5 sensor collar with two pairs of accelerometers, one low range and one high range. The X axis accelerometer is mounted radially, the Y axis accelerometer is mounted tangentially and the Z axis accelerometer is mounted axially. Rotation is measured using magnetometers and RPM changes from torsional vibration are measured directly.

Sonde Vibration Severity Sensor (SVSS)The sonde vibration severity sensor (SVSS) is a two-axis device with one sensor oriented for a lateral measurement (X) and another for an axial measurement (Z). The SVSS is associated with the pressure case directional - ruggedized (PCD-R) and pressure case gamma - ruggedized (PCG-R) tools.

Torsional Efficiency Monitor (TEM)The torsional efficiency monitor (TEM) is derived from a measurement obtained from within the Geo-Pilot® rotary steerable tool. A sensor located on its outer housing measures the rotational speed of the drive shaft. Where the speed of the shaft is constant, then torsional efficiency is high (100 percent). As the rotational speed varies, then torsional efficiency reduces, with 0 percent indicating that the string is achieving a stalled condition. The measurement is available from each of the Geo-Pilot 9600, 7600, and 5200 series systems.

Information from each of the above sensors is available both real-time and recorded.

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L315

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L360

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05Other Circumstances that Cause Specified Limits to Be Exceeded

For all Sperry Drilling equipment, the lowest specification of any component included in the bottomhole assembly (BHA) is the governing operating limit. Operating the BHA with parameters outside of the defined operating limit is regarded as an Exceeded Specified Limit (ESL) condition.

At all times, Sperry Drilling personnel must follow good industry-accepted drilling and operating practices, along with specific recommendations, as to the operation of Sperry Drilling equipment.

Where a specified operating limit has been exceeded, then any subsequent equipment failure will be deemed to be caused by improper use of the tool and any nonproductive time should not be attributed to Sperry Drilling.

Specific conditions that will cause the equipment’s specified limit to be exceeded are:

» Rotating the drillstring without circulation.

» Counter clockwise (looking downhole) rotation.

» Jarring or jarring with torque in the string.

» Backreaming or off bottom rotation with RPM exceeding the defined limits (Any off bottom rotational speed should be determined by the specific operation and with reference to vibration measurements).

» Failure to follow Sperry Drilling supplied procedures for any rotation or reaming of equipment across whipstocks.

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L123

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» Pack-offs that occur above the tools and cause the pressure at the tool to exceed the pressure limit.

» Abnormal Wear – External: Certain formations can be exceptionally abrasive and cause excessive equipment wear. Abnormal Wear – External is defined as over 1/16-inch on stabilizers and as wear or erosion on components that damage them during that run to the point they cannot be returned into service as they fail inspection criteria.

» Abnormal Wear – Internal: Excessive amounts of abrasive solids and/or extraordinarily abrasive solids will cause extensive damage to tools. With increasing mud weight, the total solids concentration in the mud system increases significantly; the damage (erosion) internally to the tools is a function of flow rate and solids content. Low-density solids are generally more abrasive, and it is essential that proper drilling fluid cleaning systems are utilized to maintain the mud system within specifications. Abnormal Wear – Internal is defined as wear or erosion on components that damage them during that run to the point they cannot be returned into service as they fail inspection criteria.

» Metal shavings, filings, scale, low-gravity formation solids, or other materials that enter into the drilling fluid through normal operation or otherwise can cause erosion or other damage to tools. The presence of abnormal levels of such abrasive materials is evidence of an ESL condition. When such evidence is present and more than normal erosion is noted after strip down in the local workshop, an ESL claim will be submitted.

» Using LCM with other than fine to medium granularity, or mixing LCM incorrectly, can cause specified limits to be exceeded.

» All drilling fluids contain corrosive elements, and damage to downhole tools will occur on the surface where oxygen is available to fuel the reaction. As a consequence, all tools must be thoroughly flushed and hosed, externally and internally, after use in either oil-based mud (OBM) or water-based mud (WBM) systems. The cleaning fluid should have a low chloride content – in the order of fresh water (< 500 ppm/< 500 mg/l). The customer is required to provide facilities and clean water, as well as the required rig time to perform these procedures.

» Any application that results in physical damage beyond what is considered normal wear and tear is considered to be an ESL condition.

» Air drilling, nitrogen injection/multiphase fluid, underbalanced drilling operations, and snubbing operations are deemed special operations not covered by the normal operating specifications published in the data sheets.

» Equipment exposure to 500ppm of CO2 constitutes an exceeded specified limit to the equipment, or corrosive fluids like acids, fracturing fluids, other stimulation fluids, zinc bromide or calcium bromide. Any equipment run in environment above this concentration is deemed to be outside the operating envelope. The maximum limit for CO2 for formation fluid sampling tools is up to 50% for the sample.

30 Sperry Drilling

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L360

95

» Equipment is not rated for service in H2S environments greater than 50 ppm. Any equipment run in environment above this concentration is deemed to be outside the operating envelope.

» Silicates, air drilling, Nitrogen injection / multiphase fluid, under-balanced drilling operations and snubbing operations are deemed special operations not covered by the normal operating envelope.

» Tool torque limits are specified as for torsional load only, not for combined torsional and axial load. When assessing the exceeded limits condition for torque during stall events the trapped torque generated by the rotary drive system and the torque pulse created by arresting the momentum of the rotating drill string must be determined.

To prevent equipment damage when drilling out the cement and shoe, Sperry Drilling will establish operating procedures and drilling parameters; extra care must be taken when drilling out a long rat hole where a large contrast between casing and hole inner diameter (ID) exists.

Tripping speeds must be monitored and adjusted to reasonable levels based on certain specific conditions, well profiles, and BHA configurations (e.g., changes in hole size, tripping through casing shoes or liner tops, areas of known high dogleg, and areas of known wellbore instability.

Reasonable advance notice is required of changes in operational parameters, including alterations to the circulation system (pumping pills or slugs, mud weight, LCM, acid).

Drilling with hematite, silicate, formate, laminum, or ilmenite drilling fluids is known to accelerate the wear or damage to the downhole tools. If these drilling fluids are to be used, then the local Sperry Drilling representative should be contacted to obtain the specifications and procedures for the specific application.


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