1. Enhancing Predictability and Reliability Through Built-for-Purpose RSS Christian Menger – VP Technology D-Tech Rotary Steerable

2. D-Tech Rotary Steerable Company Overview
Independent developer & provider of built-for- purpose RST for the global land drilling market
Not a service company: a Technology Provider & Performance Enabler
Direct access: equipment, expertise & support
Helping customers deliver challenging directional, horizontal, & tight-tolerance vertical wells
Office locations:
Eastern Hemisphere: Engineering office, Bristol, UK
Western Hemisphere: Operations HQ, Houston, TX
Independent developer & provider of built-for-purpose RSS for global land drilling market
Not a service company, but Technology Provider & Performance Enabler
Provide direct access to equipment, technical expertise & product/operations support
Enabling customers deliver most challenging directional, horizontal, & tight-tolerance vertical wells
Two office locations:
Eastern Hemisphere: Engineering office, Bristol, UK
Western Hemisphere: Operations HQ, Houston, TX

3. North America Land – Historical Challenge
Dominated by conventional drilling
Driven by smaller independents
Equipment inconsistencies
BHA configuration variability
Harsh drilling environment
High vibration
Basin-to-basin complexity
LCM concentrations
High DLS curves with long laterals
High ROP demand
Traditional RSS  high-tier tools
North America Land dominated by conventional drilling
DD market driven by smaller independents
Inconsistent motor & MWD quality, performance & reliability
Immense variability in BHA component configurations
Harsh drilling environment
High vibration – HFTO/stick-slip/whirl
Basin-to-basin drilling complexity (lithology, faults, drilling fluids, losses,...)
LCM concentrations
High DLS curves with long laterals (2-3 miles) – Lease boundaries driven
Push for high ROP
Traditional RSS designed for complex, high risk / high cost offshore drilling environments

4. RSS – Commercial Product Categories
Pros
Cons
Non-Rotating Stabilizer
▪ R&M costs/time; ▪ Complexity; ▪ Limited; vibration,
torque, scalability, overpull; ▪ Poor hole cleaning;
▪ Hang-up risk – limited torque transfer
▪ Low power
Point-the-Bit
Fully Rotating
▪ Hole cleaning
▪ Soft formation DLS
▪ R&M costs/time; ▪ Complexity; ▪ Limited: vibration,
torque, scalability, overpull; ▪ High power demand;
▪ Hole quality/gauge/spiraling
RSS
▪ R&M costs/time; ▪ Complexity; ▪ Limited: vibration,
torque, scalability, overpull; ▪ Poor hole cleaning;
▪ Hang-up risk – limited torque transfer; ▪ Soft
formation DLS
Non-Rotating Stabilizer
▪ Low power
Push-the-Bit
Fully Rotating
▪ R&M cost/time; ▪ Scalability;
▪ Low complexity; ▪ Hole
cleaning; ▪ Low power (mud)
▪ Soft formation DLS
▪ High power (oil)

5. D-Tech Push-the-Bit Land RSS Platform
Control Collar
Slick collar – no holes
Inline/sleeve stabilizer
Power Generation
Low power generator
“Unlimited” run life / no batteries
Downlinking (flow rate)
Steering Body
Maximize torsional strength
Six pistons – maximum steering force, hydraulically optimized
Mud-actuated with internal seals
Universal Control Unit
Plug & play – global compatibility
Fully scalable
Centrally mounted electronics
Short R&M cycle
Near bit D&I
Automation – inclination & azimuth hold
Control Valve
Low inertia for fast response
LCM tolerant filter assembly

6. Pre-Job Planning & Execution – 24-hr Remote Monitoring
RT remote monitoring & operations support
– all active rigs in US land
Operating parameters evaluation
Maximize drilling performance & wellbore placement accuracy
Streamline internal communication
Support unmanned drilling operations
BHA & hydraulics optimization
Enable performance drilling
RT remote monitoring & operations support – all active rigs in US Land
Operating parameters evaluation in real time
Maximize drilling performance & wellbore placement accuracy
Streamline internal communication
Support unmanned drilling operations
Assist with troubleshooting
Provide advice on steering mode
BHA & Hydraulics optimization
Enable performance drilling

7. D-Tech Rotary Steerable Drilling History
1,287
3,759,705’

8. D-Tech Commercial Reliability & Engineering/Sustaining
Focus on product performance, predictability & reliability
Learn from incidents:
Post-run analysis of all “incidents”
Determine root cause
Root cause used to drive “fit-for-purpose” changes:
Procedures | Design | Material | Equipment
Learn from successes:
Replicating success
Drilling parameter optimization
BHA Design (motor selection, MWD placement, stabilization)
Pre-, mid-, & post-run data analytics & communication

9. North America Land – Current Market Challenges
Lack of durable, reliable & economical slim-hole RSS
7 7/8-in. market increase – need for built-for-purpose solution
Harsh drilling environment in extended laterals
Torsional vibration
High lateral vibration/shock, whirl coupled with torsional episodes
Market focus on cash flow & ROI
RSS Technology must:
… be predictable & reliable
… improve well delivery (drilling & completions)
… reduce overall drilling costs
Lack of durable, reliable & economical slimhole RSS
7-7/8” market increase – need for built-for-purpose solution
Desire for VCL products in several basins
Harsh drilling environment in extended laterals
Torsional vibration (stick-slip, HFTO)
High lateral vibration/shock, whirl coupled with torsional episodes
Market focus on cash flow & ROI
RSS Technology must…
…be predictable& reliable
…improve well delivery (drilling & completions)
…reduce overall drilling costs

10. D-Tech RSS Enhancements (2018-2019)
D-Tech RSS fully re-engineered:
Steering body design
Torsional fatigue tolerance
Hydraulics optimization prevents erosion (high RPM, heavy muds, poor solids control, LCM)
Long-life pistons (proprietary diamond armor for abrasive formations)
New slim-hole RSS (RST475)
Intermediate sizes (RST650, RST800)
D-Tech RSS fully re-engineered – addressing key issues of previous generation
New Steering Body Design
Eliminate torsional fatigue risks under HFTO & high levels of stick slip
6-pocket vs 3-pocket design
Re-positioned flow channels to eliminate stress raisers
Re-designed piston sleeve retention to prevent stress concentration
Eliminate erosion risk at high rotary speeds, mud weights & high solids mud systems + eliminate toolface offset lag at high rotary speed
Increased flow channel size
Optimized piston diameter & choke nozzle size
New control valve assembly with larger & re-positioned flow channels
Prevent accelerated piston wear in abrasive formations
New proprietary piston armoring outlasts even longest run length in US land
New piston limit-stops with tighter tolerance & larger footprint

11. D-Tech RSS Enhancements (2018-2019), cntd.
New control unit design
Shock & vibration resistance (shock mounts, PCB redundancy)
Material selection & component tolerancing (wear prevention)
LCM tolerance (new, proprietary filter design)
New feature addition (high speed, high torque)
Optional RT communication
New Control Unit Design
Shock & vibration tolerance
New Rotary Valve retention system prevents valve locking
Revised motor drive shaft – reduced torque demand & prevents galling
Revised PCB design to increase shock & vibration resistance with new components & board redundancy
Revised motor assembly procedures with improved tolerances
Board redundancy features
Chassis Protection System – CU Chassis stabilization/reduced vibration damage
New real time clock Battery for ruggedization in high vibration environments and longer run life
Design and assembly procedure changes for internal power connection – improved connector durability/life
Prevent galling, fretting wear & hydrostatic pressure limitation
New material selection eliminates unintentional connection
Increased make up torque of internal components
New pressure housing material prevents housing from collapsing at high pressures
New control shaft design & bearing support
LCM tolerance increase
New, proprietary internal filter design provides unmatched LCM tolerance for wide range of LCM
Flow port & choke size optimization

12. D-Tech RST Enhancements (2018-2019), cntd.-2
Enhanced power generation module
Increase service life
Downhole & surface software revision
Downlink reliability & wellbore placement accuracy enhancements
Customer support
Enhanced communication & operations support
24-hr remote support
BHA modeling, design review & performance optimization
Post-run data analysis & performance report
Quality system upgrade
Revised product & operations documentation
Enhanced Power Generation Module
Increase service life
New sealing configuration
Materials upgrades increased pressure rating
Bearing selection & retention improvements increase load rating
Rotor tolerance changes improve efficiently & lubricant flow
New pressure compensation system & increased oil volume
RST Software revision
Downlink reliability & wellbore placement accuracy enhancements
Revised steering table
False downlink identification
Control loop coefficient enhancements
Customer Support
Enhanced communication & operations support
24-hr remote operations monitoring & customer support
BHA modeling, design review & performance optimization
Comprehensive post-run data analysis & performance report
Quality system upgrades
Enhanced product & operations documentation

13. Summary - D-Tech Rotary Steerable – Redefining RSS
Land RSS market has specific requirements – Requires built-for-purpose solutions
Requirements constantly evolving – Pushing technology envelope
D-Tech RSS – Field-proven, push-the-bit system addressing global land market needs
Fully scalable & available fleet for all hole sizes
Reduced complexity maximizes performance, reliability
Shortest R&M cycle in industry
Continuous enhancements & developments to meet operational requirements
D-Tech – A technology provider & performance enabler with unmatched collaborative support
D-Tech RSS – A field-proven push-the-bit RSS for the most challenging directional, horizontal and tight-tolerance vertical wells in the global land drilling market
D-Tech is a technology provider & performance enabler that puts the customer in control while providing unmatched collaborative support during planning & execution
Reduced complexity maximizes performance, reliability & reduces maintenance headaches with a scalable & available fleet covering all hole size needs
Continuous enhancements & developments enable the D-Tech RSS to meet ever increasing operational requirements & continues to exceed customer expectations

14. Thank you for supporting IADD and D-Tech Let’s Get Drilling.