Smart Top Drive Automation Improves Drilling Performance and Prevents Downhole Tool Failures

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Harvey Franklin
5 years ago
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1 Smart Top Drive Automation Improves Drilling Performance and Prevents Downhole Tool Failures IADC Southern Arabian Peninsula Chapter February 15 th, 2018

2 Top Drive Automation Overcoming Inefficiencies Through Scalable Technology Performance Limiters Cost-Efficiency Challenges 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) Solution ROCKit 2

3 Oscillation Improves Slide Drilling Reduces Drag and Increases ROP 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 3

4 4 Oscillation Improves Slide Drilling Reduces Drag and Increases ROP

5 Case Study: West Texas (2016) Effect of Oscillation on ROP and WOB Transfer Efficiency 85% Faster Slide ROP Increased WOB transfer efficiency 41% higher Diff. Press. with 50% less weight from surface 5

6 Case Study: Barnett Shale (SPE/IADC ) Increase Sliding ROP Increased sliding ROP in lateral by 100% 6

50 0 50 100 150 200 250 300 240 120 Each dot is one MWD toolface reading.

7 Accurate Position Control Reduce Flat Time While Setting Toolface and Steering Quickly orient toolface prior to sliding Fine steering adjustments from HMI without picking up off bottom Maintain toolface across connections Each dot is one MWD toolface reading. Red dots show a steering move, blue dots are largely within tolerance Autonomous Slide with PLC control from ft MD with advisory tolface set to 30 degrees Inclination ~40 degrees 7

8 Case Study: Barnett Shale (SPE/IADC ) Aggregate Time Savings Eliminated 3 days from drilling program 8

9 Case Study: Middle East Understanding Efficiency Gains 8 3/8 Curve Section 5 7/8 Lateral Drain Average Slide ROP -ROCKit Off 15 ft/hr Average Slide ROP -ROCKit Off 7 ft/hr Average Slide ROP -ROCKit On 17 ft/hr Average Slide ROP -ROCKit On 10 ft/hr Drilling Time Savings 5 hrs Drilling Time Savings 19.2 hrs # of Tool Face Orientations 70 # of Tool Face Orientations 27 Time Savings Per Orientation 10 min Time Savings Per Orientation 10 min Orientation Time Savings 11.7 hrs Orientation Time Savings 4.5 hrs SECTION TIME SAVINGS 16.7 hrs SECTION TIME SAVINGS 23.7 hrs TOTAL TIME SAVINGS 40.4 hrs 9

10 Top Drive Stick Slip Mitigation Operating Principle 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 10

11 Top Drive Stick Slip Mitigation Downhole Validation Off On 11

12 Top Drive Stick Slip Mitigation Field Observations Surface Data with RSS On Off On Off On Off 12 Max Torque Min Torque * Stick Slip Severity = Aveage Torque

13 Top Drive Stick Slip Mitigation Downhole Validation On Off On On Off 13

Case Study: Williston Basin Stick Slip Mitigation Across Field Improved drilling performance across 7 rigs and 6 different counties Reduced unplanned trips due to bit wear and/or BHA failure.

14 Case Study: Williston Basin Stick Slip Mitigation Across Field Improved drilling performance across 7 rigs and 6 different counties Reduced unplanned trips due to bit wear and/or BHA failure. Over 100 wells successfully reduced the time spent to drill the vertical and horizontal portions of the well Vertical Lateral Avg. Drilling Hours Avg. Unplanned Trips Avg. Drilling Hours Avg. Unplanned Trips Rig Before After Hours Saved Before After Trips Saved Before After Hours Saved Before After Trips Saved BAA (0.16) BBB BCC BDD BEE (0.10) BFF BGG

15 Case Study: Middle East Extended Bit Life and Improved Performance Eliminated 4 bit runs Significantly increased bit run length (3x in 22 section, 1.8x in 16 section) C B A C B A 15

16 Top Drive Automation Overcoming Inefficiencies Through Scalable Technology Performance Limiters Cost-Efficiency Challenges 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) Solution ROCKit 16

Using Drilling Dynamics To Reduce Drilling costs

1 Welcome Using Drilling Dynamics To Reduce Drilling costs 2 Using Drilling Dynamics The cost of the drill bit, mud motor, and other BHA components depends the downhole conditions in which they operate.