Central Mine Planning & Design Institute Limited · NSE:CMPDI

Central Mine Planning & Design Institute — REI Drilling — International Workshop on Optimum Utilization of CMM/CBM in India 2019

23 slides from Central Mine Planning & Design Institute's conference presentation, Apr 24, 2019

  1. Slide 1: Overview of In-Mine Directional Drilling Technology

    Overview of In-Mine Directional Drilling Technology International Workshop on Optimum Utilization of CMM/CBM in India, Ranchi, India, April 24-25 2019 Daniel J. Brunner President, Resource Enterprises REI Drilling Inc., DPI Inc., DPI-IPG LLC. Salt Lake City, UT, USA 1

  2. Slide 2: Methane Drainage Service Provider

    Methane Drainage Service Provider  Characterization, Engineering Design, Implementation Approach 3 - Residual Gas Content K1 Coal Seam 8.65 1.00 Siltstone Coal 45 Days Gas Production Forecast 800 44.40 Siltstone 600 scf/cu ft 200 scf/ton 700 1.80 Coal 1000 2000 3000 4000 5000 6000 7000 8000 9000 10

  3. Slide 3: Developments in Technology

    Developments in Technology  Extended Reach Directional Drilling Equipment  ER Permissible Drill  555 kN/7,500 NM  > 2,000 m  ER Drill Steel  Designed to be Comparable to X95 73 mm XH Oil Field Pipe Used for Extended Reach  Installed with High Pressure RCS I+ Communication System  ER Mud Syst

  4. Slide 4: Developments in Technology

    Developments in Technology  Enhanced Extended Reach DDMS with LWD Capability  On-Board Drill to Plan  Data Management  On-Board Focused Gamma Polygon Guidance  Drill Performance Monitoring  Roof  Coal  Floor 4

  5. Slide 5: Developments in Technology

    Developments in Technology  Torque and Drag Simulation  String Model of Drill Steel  Buckling Limits, Tension – Depth  Range Chart, Thrust – Depth  Plan Drilling Strategy 165 mm Directional Drilling with 89 mm Downhole Motor 70 mm CHD 73 mm MCHD 73 mm CHD, 114 mm stabilizers @ 15 m intervals 1,

  6. Slide 6: Developments in Technology

    Developments in Technology  Well/Borehole Interception Capabilities -225 m @ 335 m - 320 m @ 1060 m  Magnetic Vector Technology  Intercept 150 mm Dia. Vertical Well 6

  7. Slide 7: Enhanced Capabilities

    Enhanced Capabilities  Extended Reach Drilling  68,580 m drilled in rock  Longest underground directionally drilled borehole at 1,861 m at + 46 m above collar elevation  14,520 m drilled from a single wellbore – record in Oil and Gas  Combined systems + 46 m 7

  8. Slide 8: Pre-Mining Methane Drainage Considerations

    Pre-Mining Methane Drainage Considerations  Impact of Reservoir Conditions > 600 m2 of surface area for 2,000 m borehole  Pressure Gradient Driven Flow  Gas Desorption from Microscopic Coal Surfaces  Gas and Water Flow through Natural Fractures in Coal to Borehole  Gas and Water Flow through Bo

  9. Slide 9: Geologic and Reservoir Characteristics

    Geologic and Reservoir Characteristics  Reservoir Characteristics of CMM Pre-Drainage Projects Compared to Moonidih Reservoir Properties Pocahontas No. 3 Lower Hartshorne Double Seam Blue Creek Moonidih XVIT Medium Volatile Low-Medium Volatile Medium Volatile Low-Medium Volatile Low-Medium Volatile

  10. Slide 10: Directional Drilling Solutions

    Directional Drilling Solutions  Displacing Conventional In-Seam Drainage Techniques  Conventional Cross-Panel Boreholes  Directionally Drilled Shielding Boreholes  Low Permeability Application with Outburst Protection  High Permeability Application 10

  11. Slide 11: Directional Drilling Solutions

    Directional Drilling Solutions  Displacing Conventional Gob Degasification Techniques  Gob Degasification Techniques  High Capacity Horizontal Gob Boreholes Gob Gas Flow Rate for 1000 m Horizontal Gob Borehole Configurations (70% CH4 ) 300 1000 m, 96 mm, Standard 250 Gob Gas Flow Rate (70% methan

  12. Slide 12: Directional Drilling Solutions

    Directional Drilling Solutions  Complementing Systems of Methane Drainage  Complementary Pre-Mining Drainage in High Perm Conditions > 10 md  > 1600 m Directionally Drilled Boreholes Navigated around Vertical Frac Wells  In-Seam Borehole Average IP > 40 m3/min  Significant Reservoir Pressure Re

  13. Slide 13: Directional Drilling Solutions

    Directional Drilling Solutions  Combining Systems of Methane Drainage in Tight Coals  Applicable in Tight or Cemented Coals  Where In-seam Gas Production Increases with Mining Related Stress Changes  Intercept Fracs Orthogonally, both Mining and Adjacent Seams  Vertical Wells Serve as Future Go

  14. Slide 14: Directional Drilling Solutions

    Directional Drilling Solutions  Connecting Vertical Wells with In-Seam Boreholes to Implement Stand-Alone Systems  Connect in-seam manifold of directionally drilled boreholes to a vertical well  Water and gas is produced from the vertical well on the surface.  Minimizes underground gas collectio

  15. Slide 15: Directional Drilling Solutions

    Directional Drilling Solutions  Connecting Vertical Wells with In-Seam Boreholes to Reduce GC of Underlying Coals  Reduce gas contents of underlying mineable coals from current mining level  Intercept inter-burden wells to recover water and gas from the horizontal in-seam boreholes  Provides for

  16. Slide 16: Directional Drilling Solutions

    Directional Drilling Solutions  Coupling Systems for Gob Gas Drainage  Intercepting surface drilled vertical gob wells with horizontal gob boreholes developed from underground  Improves the performance of vertical gob wells  Extends the productive life of vertical gob wells  Reduces vertical go

  17. Slide 17: Directional Drilling Solutions

    Directional Drilling Solutions  Coupling Systems of Gob Gas Drainage to Control Floor Gas  Intercepting vertical wells with underlying horizontal gob boreholes  Gob gas production from surface with vacuum  Controls floor gas emissions along the longwall face during mining  Vertical well can be

  18. Slide 18: Directional Drilling Solutions

    Directional Drilling Solutions  Using LWD to Reduce GC in Coals with Vertical Permeability Barriers and Friable Layers  Use Competent Coal Layer as a Bridge for Reach  Navigate in Thin Competent Layer using LWD  Develop Side-Tracks Down to Break through Vertical Permeability Barriers  Carefully

  19. Slide 19: Directional Drilling Solutions

    Directional Drilling Solutions  Using LWD to Navigate in Adjacent Seams to Access Friable Coals for Pre-Mine Drainage 19

  20. Slide 20: Directional Drilling Solutions

    Directional Drilling Solutions  Using a Mine Appropriate SIS Approach  Early Vertical Well Intercept Approach  Rapid Surface Casing Installation 20

  21. Slide 21: Directional Drilling Solutions

    Directional Drilling Solutions  Ultra-Long Water Transfer Boreholes in Underlying Rock 21

  22. Slide 22: Directional Drilling Solutions

    Directional Drilling Solutions  Reduce Water Saturation in Overlying Sands 22

  23. Slide 23: Summary

    Summary  Directional Drilling Solutions  Developments in directional drilling  Geo-Steering technology provides the  Directional drilling solutions involving technology provides for longer length, ability to maintain boreholes in-seam or complementing, combining, and larger diameters, and more a

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