Smart Top Drive AutomationImproves Drilling Performance andPrevents Downhole Tool Failures

IADC Southern Arabian Peninsula Chapter

February 15th, 2018

Top Drive AutomationOvercoming Inefficiencies Through Scalable Technology

2

Performance Limiters Cost-Efficiency Challenges

SolutionROCKit® REVit™

Inefficient weight transfer when slide drilling

Rotary steerable failures caused by stick slip

Additional mud lubricants to improve sliding

MWD / Bit damage from stick slip

Lower ROP when slide drilling

Decreased ROP from damage to cutting structure

Tool face orientation time (invisible NPT)

Oscillation Improves Slide DrillingReduces Drag and Increases ROP

3

• Patented technology for oscillating drill pipe based on quill position

• Oscillations reduce friction along wellbore to improve weight transfer

• Oscillation regime can be adjusted to provide maximum drill sting

rotation without affecting toolface orientation

• Increases ROP when sliding

Oscillation Improves Slide DrillingReduces Drag and Increases ROP

4

Case Study: West Texas (2016)Effect of Oscillation on ROP and WOB Transfer Efficiency

5

• 85% Faster Slide ROP

• Increased WOB transfer

efficiency

41% higher Diff. Press. with

50% less weight from

surface

Case Study: Barnett Shale (SPE/IADC 118656)Increase Sliding ROP

6

Increased sliding ROP in lateral by 100%

Accurate Position ControlReduce Flat Time While Setting Toolface and Steering

7

• Quickly orient toolface prior to sliding

• Fine steering adjustments from HMI without picking up off bottom

• Maintain toolface across connections330°

300°

240°

210° 150°

120°

60°

30°

300 250 200 150 100 50 0 50 100 150 200 250 300

Autonomous Slide with PLC

control from 9521-9541 ft MD with

advisory tolface set to 30 degrees

Inclination ~40 degrees

Each dot is one MWD toolface

reading. Red dots show a steering

move, blue dots are largely within

tolerance

Case Study: Barnett Shale (SPE/IADC 118656)Aggregate Time Savings

8

Eliminated 3 days from drilling program

Case Study: Middle EastUnderstanding Efficiency Gains

9

8 3/8” Curve Section

Average Slide ROP -ROCKit® Off 15 ft/hr

Average Slide ROP -ROCKit® On 17 ft/hr

Drilling Time Savings 5 hrs

# of Tool Face Orientations 70

Time Savings Per Orientation 10 min

Orientation Time Savings 11.7 hrs

SECTION TIME SAVINGS 16.7 hrs

5 7/8” Lateral Drain

Average Slide ROP -ROCKit® Off 7 ft/hr

Average Slide ROP -ROCKit® On 10 ft/hr

Drilling Time Savings 19.2 hrs

# of Tool Face Orientations 27

Time Savings Per Orientation 10 min

Orientation Time Savings 4.5 hrs

SECTION TIME SAVINGS 23.7 hrs

TOTAL TIME SAVINGS 40.4 hrs

Top Drive Stick Slip MitigationOperating Principle

10

• Soft Torque Rotary System implementation

• Torque maxima correspond to speed minima and vice-versa.

Two waves destructively interfere with each other (like noise

cancelling headphones)

• Real-Time Stick Slip Mitigation

Top Drive Stick Slip MitigationDownhole Validation

11

REVit™ Off REVit™ On

Top Drive Stick Slip MitigationField Observations – Surface Data with RSS

12

* Stick Slip Severity = 𝑀𝑎𝑥 𝑇𝑜𝑟𝑞𝑢𝑒−𝑀𝑖𝑛 𝑇𝑜𝑟𝑞𝑢𝑒

𝐴𝑣𝑒𝑎𝑔𝑒 𝑇𝑜𝑟𝑞𝑢𝑒

On

Off

On

Off

On

Off

Top Drive Stick Slip MitigationDownhole Validation

13

On Off On

On

Off

Before

REVit™

After

REVit™

Hours

Saved

Before

REVit™

After

REVit™

Trips

Saved

Before

REVit™

After

REVit™

Hours

Saved

Before

REVit™

After

REVit™

Trips

Saved

BAA 128.39 111.12 17.27 0.64 0.80 (0.16) 205.56 176.35 29.21 2.00 1.00 1.00

BBB 114.68 99.87 14.81 0.36 0.33 0.03 205.61 188.33 17.29 1.00 1.00 0.00

BCC 105.03 91.25 13.79 0.13 0.00 0.13 186.01 142.67 43.34 1.13 0.00 1.13

BDD 162.17 139.29 22.88 1.43 0.50 0.93 233.63 187.30 46.34 1.60 0.25 1.35

BEE 139.01 124.80 14.21 1.00 0.50 0.50 187.07 165.88 21.19 1.40 1.50 (0.10)

BFF 125.50 121.94 3.56 1.00 0.75 0.25 227.25 157.94 69.31 1.50 0.00 1.50

BGG 135.37 127.66 7.71 1.00 1.00 0.00 228.56 184.11 44.45 1.67 1.33 0.33

Rig

Vertical

Avg. Drilling Hours Avg. Unplanned Trips

Lateral

Avg. Drilling Hours Avg. Unplanned Trips

Case Study: Williston BasinStick Slip Mitigation Across Field

14

• Improved drilling performance across 7 rigs and 6 different counties

• Reduced unplanned trips due to bit wear and/or BHA failure.

• Over 100 wells REVit™ successfully reduced the time spent to drill the

vertical and horizontal portions of the well

Case Study: Middle EastExtended Bit Life and Improved Performance

15

C

B

A

C

B

A

• Eliminated 4 bit runs

• Significantly increased bit run length (3x in 22” section, 1.8x in 16” section)

Top Drive AutomationOvercoming Inefficiencies Through Scalable Technology

16

Performance Limiters Cost-Efficiency Challenges

SolutionROCKit® REVit™

Inefficient weight transfer when slide drilling

Rotary steerable failures caused by stick slip

Additional mud lubricants to improve sliding

MWD / Bit damage from stick slip

Lower ROP when slide drilling

Decreased ROP from damage to cutting structure

Tool face orientation time (invisible NPT)