autonomous drilling€¦ · optimal slips-to-drilling and drilling-to-slips / to optimize and...

AUTONOMOUS DRILLING

“WELL DONE IS BETTER THAN WELL SAID……”BENJAMIN FRANKLIN

Established 2011

20 years technology development by NORCE (IRIS)

Funded by operators; Equinor, Chevron, ENI, and BP together with the Norwegian Research council

Main shareholders

WHO ARE OUR CUSTOMERS?(More than 300 wells)

10/15/2018 / 4 / Copyright © 2018 Sekal AS. All rights reserved.

Sekal System Portfolio

DrillExpectUser: Drlling Engineer

No RT data

Configuration dataDB

Data Acquisition Server

Drilling Control System

Hydraulic

MechanicalThermoC

oupl

ed M

odel

s

GW PLC

GW PLC

DrillSceneUser: Drilling Engineer

RTOC

DrillAwareUser: All

DrillTronicsUser: Driller

Real Time DataWITSML

RT dataRT data

RT data

RT & Modelled Data

Look Ahead


NPT and Safety• Secure Well Integrity – Stay within pressure window

• Avoid swab, collapse and surge• Avoid Stuck Pipe - Mechanical or Differential• Avoid Pipe failure

ILT• Knowledge of limits allows optimization

• Tripping and casing running speed• Cuttings transport• ROP

Experienced Value Proposition

Average stuck pipe cost for one of our clients:7.5 MUSD

Statistically saved technical side-tracks where DrillScenehas been used : 77Value : 580 MUSD

Cost of unnessessary reaming for one of our clients:2.0 MUSD

Washout detected by DrillScene. Potential cost 3.8 MUSD


DrillTronics

Equinor awarded Sekal third license April 2017 for the Semi-Submersible Songa Enabler and in January 2019 for the remaining 3 Transocean cat D rigs.

The First Use Report (Equinor) indicated increased efficiency (up to 12%) and operational consistency across all crews.

Equinor awarded Sekal the second license summer 2016

Equinor awarded Sekal the forth license October 2018 for the Mariner field in UK

Wintershall DEA awarded Sekal the fifth license December 2018 for the SeaDrillSemi-sub West-Mira

Transocean awarded Sekal the 9th license January 2019 for the Transocean Semi-sub Transocean Spitsbergen


DRILLTRONICSDYNAMIC

PROTECTION

SURGING TORQUE

SETDOWN WEIGHT

OVERPULL WEIGHT

PUMP RATE

SWABBING

PUMP ACCELERATION

PUMP PRESSURE

Drilling Automationwith wellbore protection

SafeGuarding


NOVOS / DEAL / LYNX / Others

Drilling Control System (DCS)

Ris

k R

educ

tion

Effic

ienc

y an

d O

ptim

izat

ion

(Sm

art M

odul

es)

DrillTronics – Core (Well Protection - Active)

Auto

Pum

p St

op

Auto

Pum

p St

art

Auto

Rec

ipro

catio

n

Auto

Bac

k Re

amin

g

Auto

trip

ping

Auto

Cas

ing

Runn

ing

Auto

RO

P

(Automation)

DrillTronics


Without DrillTronics With DrillTronics

Tripping (POOH) by DrillTronics


Without DrillTronics With DrillTronics

Pump start up by DrillTronics


Friction test – Example

-2,000

-1,000

0,000

1,000

2,000

3,000

4,000

5,000

00:00 00:17 00:35 00:52 01:09 01:26 01:44 02:01 02:18 02:36 02:53

#1 #2 #3 #4 #5 #6 #7 #8 #10

#11 #12 #13 #14 #15 #17 #18 #19

-2,000

-1,000

0,000

1,000

2,000

3,000

4,000

5,000

00:00 00:17 00:35 00:52 01:09 01:26 01:44 02:01 02:18 02:36 02:53

#20 #21 #22 #23 #24 #25 #26

#27 #29 #30 #31 #32 #33


Automatic Mud Pump Start – Example


Smart Auto ROP

/ Perform the automatic drilling of a stand./ Execute automatically ROP performance tests./ Control the WOB, RPM and flowrate to optimize

the ROP, cuttings transport, risk of drill-string vibration, risk of formation washouts while applying real time SafeGuards.

/ Automatic adjustments to formation strength and automatic management of the transition between formation layers.


Optimal slips-to-drilling and drilling-to-slips

/ To optimize and automate the «drilling to slips» and «slips to drilling» operation during a pipe connection.

/ Automatic function protected by DrillTronics safe guarding.

/ Automatically operate from drilling to slips. The system will calculate; minimum lift height, pump rate, rotation speed, trip speed and hook load.

/ Automatically operate from slips to drilling. The system will calculate; pump rate, rotation speed and trip speed.

/ An efficient and safe connection can always be performed in a uniform and consistent way across all crews.


System components

DrillTronics uses a topology with distributed nodes to improve stability, robustness and performance of the entire system./ An Administrative Client is installed both at the rig-

site and in a back-office and is used to monitor and maintain the system, including necessary configurations.

/ The Machine Control unit sends UDP datagrams to the Gateway PLC, while the Data Acquisition module reads UDP datagrams from the Gateway PLC.

/ The Wellbore Status unit is responsible for calculating the current state of the wellbore (temperature, pressure, cutting profiles etc.).

/ The Object Cache Backup unit is used for object cache backup. Every local object cache is made available on the object cache backup machine by a replication processes.

/ The Calculations Server unit is performing all the DrillTronics modelling calculations. In addition, the Wellbore Data Manager, which is responsible for maintaining the configuration data, is also running on this unit.

/ The Gateway PLC is a gateway to communicate with the DCS (Drilling Control System).

Calculation server Admin client Admin client

RIG-SITE BACK-OFFICE

Data acquisition &machine limits

Wellborestatus

Object cachebackup

Gateway PLC


Sekal Case : Replay of a well that collapsed - #1

1. Mud density in at surface was 11,6 ppg2. While drilling, ECD was 12 ppg3. Highest collapse pressure was 11,462 ppg


4. ESD was assumed to be 11,6 ppg when pumps were shut off

5. Replay shows that this was not correct.§ ESD is calculated to 11.54 ppg due to

temperature effect§ ESD is now closer to collapse pressure

that anticipated

ESD 11.54ppg after circulating clean at TD (low ESD due to down-

hole temperature)

Sekal Case 3: Replay of a well that collapsed - #1


6. Started tripping out of hole with a speed of 24ft/min§ Replay showed that this brought ESD

down to 11,41 ppg causing a swab§ DrillExpect calculated max speed to be

10ft/min to avoid swabbing7. Well collapsed and the well was lost

§ High cost

Breaching swab limit with pulling speed > 10ft/min

Sekal Case 3: Replay of a well that collapsed - #1

autonomous drilling€¦ · optimal slips-to-drilling and drilling-to-slips / to optimize and...

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