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DRILLTRONICS DRILLING PROCESS AUTOMATION -STATFJORD C

RONNY BERGERUDOPERATION MANAGER DRILLTRONICS AUGUST 2016

3/30/2016 / 2 / Copyright © 2016 Sekal AS. All rights reserved.

Copyright © 2016 Sekal AS. All rights reserved.DrillScene, DrillTronics, and Sekal are registered trademarks of Sekal AS. All other trademarks are the ownership of their respective companies.

No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, to anyone, for any purpose, without the express written permission from Sekal AS.

What is DrillTronics?

/ DrillTronics is- An extension of the Drilling Control

System (DCS) to ASSIST the Driller- Providing safety envelopes, safety

triggers and automated functions

Driller can decide to override at any time

/ It is not- It is not a control system (in the

sense of controlling one or several parameters)


Sensordata

PPPPPPPPPPPPPP

PP

PP P

P PP

P

MathematicalmodelsLimits &

calculated data

P

Sensordata


Real-time Safeguarding


REAL-TIME SAFEGUARDING

SURGING TORQUE

SETDOWN WEIGHT

PUMP PRESSURE

PUMP RATE

SWABBING

PUMP ACCELERATION

/ Automatic pump start/stop/ Automatic friction test/ Automatic reciprocation/ Pack-off prevention/ Protection while tripping and

reaming

OVERPULL WEIGHT


Statfjord C - Automatic friction test

-2,000

-1,000

0,000

1,000

2,000

3,000

4,000

5,000

00.00 00.43 01.26 02.10 02.53

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

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

Statfjord C - Manual friction tests

-2,000

-1,000

0,000

1,000

2,000

3,000

4,000

5,000

00.00 00.43 01.26 02.10 02.53

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

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


10.35.05 10.35.10 10.35.15 10.35.20 10.35.25 10.35.30 10.35.35 10.35.40

High SPP Emergency Flowrate Pack offremoved

Safe Flowrate

Pressure control AUTOMATIC PACK-OFF PREVENTION

SPPPump Rate


SPPPump Rate

10.35.05 10.35.10 10.35.15 10.35.20 10.35.25 10.35.30 10.35.35 10.35.40

Possible pack-off

Automatic Ramping pumps

AutomaticBreaking Gel

Automatic Pump stop

Pressure control AUTOMATIC PUMP STARTUP

Feedback loop protects wellbore and ensures well objective is achieved

/ Pack-off prevention function protects wellbore

/ DrillTronics detects pack-off 7 minutes before driller reacted and took action


17:18

17:20

17:22

17:24

Tim

e

Bit trq. (m.kN) Stick slip (rpm) ROP (m/h) Flow Rate (l/min) SPP (bar)

Pack-off detected by DrillTronics

Driller shuts down mud pump


Statfjord C – October 2014

/ First well - Several examples of increased efficiency, consistency in operations - Safeguarded well against human mistakes

/ Drillers especially liked the automated functions and the ability to measure consistency and improvement in connection time and tripping speeds


/ Longest lateral well ever drilled on Statfjord C, 8400m, 12 1/4” section

Statfjord C – July 2016

CONTROL TO PERFORM

ANALYZE TO ADJUST

SIMULATE TO OPTIMIZE

Learnings after seven wells

TECHNICAL / Excessive testing prior to use – certified in

well simulator

/ Changes and upgrades to systems are limited after installation

/ New concept challenging old systems –processes and procedures

/ Lack of standard for updating & reporting data changes

OPERATIONAL / The importance of training

/ Focus from equipment failure to examining wellbore condition

/ Awareness throughout the drilling organization creates good communication

/ Expectations need to be set with all parties –communication

/ Align processes to avoid imposing too many changes in the operation and in the team



Statfjord C – DrillTronics on all wells

/ All teams performs equally as good as the best driller/ Consistently amongst Statoil top performers

MAKES AUTOMATIC DRILLING POSSIBLE

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