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FIELD DEVELOPMENT REPORT PROJECT OF DRILLING DEPT

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REPORT OF FOELD DEVELOPMEMT PROJECT FOR THREE WELL DESIGN

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FIELD DEVELOPMENT REPORT PROJECT OF DRILLING DEPT

  1. 1. Drilling Department Presented By: Muhammad Noman Khan s/o Muhammad Hanif Khan 1
  2. 2. Presentation Synopsis 1. Pressure and fracture gradient determination 2. Calculation and selection of casing type (Proposed casing programmed) 3. Cementing Plan 4. Mud Plan 5. Bit Plan 6. Well Head Housing 7. Rig selection 8. Drill time estimation 2
  3. 3. Casing Setting Depth Selection & Fracture Gradient Determination • Formation pressure • Depth • Method used to determine fracture gradient : Eaton’s Method 3
  4. 4. For S/D and Poissons ratio
  5. 5. Conductor Casing Design 0 200 400 600 800 1000 1200 0 500 1000 1500 2000 2500 3000 Depth(ft) Pressure (psi) Burst Design Load Line Back up Line (psi) Resultant Line (psi) Design Line (psi) #H-40 0 100 200 300 400 500 600 0 500 1000 1500 2000 2500 3000 Depth(ft) Pressure (psi) CollapseDesign Load Line Resultant Line (psi) Design Line (psi) #H-40
  6. 6. Casing Selection #H-40 Round Thread (short) 1530 Collapse Resistance (psi) 520 Weight (lb/ft) 94 ID (inch) 18.936 0 100 200 300 400 500 600 700 800 900 1000 -100 0 100 200 300 400 500 600 700 800 900 1000 Depth(ft) pressure (psi) Tension Design Tensional Design Design line Casing Selection
  7. 7. Surface Casing Design
  8. 8. Intermediate Casing Design
  9. 9. Type of Casing Casing Size, in Casing Grade Conductor 20 H40 Surface 13 3/8 J-55(I,II) Intermédiate 9 5/8 H40(I,II) Casing Program – Summary 12
  10. 10. Deviation well Design (2 & 3)
  11. 11. Lz Lx 0 1000 2000 3000 4000 5000 6000 7000 -500 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 WELL 2 0 1000 2000 3000 4000 5000 6000 7000 -1000 0 1000 2000 3000 4000 5000 6000 7000 AxisTitle Axis Title WELL 3
  12. 12. Mud Planning Seawater Native - Seawater + Clay (Formation) - Using Pre hydrated bentonite to aid in hole cleaning - Dump and dilute method to control mud weight and soild contents
  13. 13. Hole Size, in Casing Size Mud Weight, ppg Total Amount, bbl 26’’ 20 9.06 328.3 17 ½’’ 13 5/8’’ 9.06 995.68 12 ½” 9 5/8” 9.06 1022.726bbl Mud Plan 16 And Production Hole Required 1047.293bbl
  14. 14. Cement Classification 17
  15. 15. Cement Classification 18
  16. 16. Volumetric mixing controls. Q1 = mixwater rate; Q2 = dry solids rate; Q3 = slurry rate Tune Lite Mixing & Cement Head 22
  17. 17. Hole Size, in Bit Type Bit Size, in 20 Mill Tooth, Hole Opener 26 13 3/8 Tricone Roller 17 1/2 9 5/8 TD506 PDC 12 1/4 Bit Planning 23
  18. 18. Bit Planning 24
  19. 19. Bit Planning 25
  20. 20. Well Head Housing 26
  21. 21. JACKUP RIG Rigs 27
  22. 22. BOP SELECTION
  23. 23. Drilling Time Estimation 31 Operations Time estimate, days Depth (TVD), ft Move rig floor to slot 0.5 0 Drill 26" hole 1.5 1000 Run 20" conductor casing 1.5 1000 run cement to sea bed 1 1000 Drill 17.5" hole 2.5 3100 Run 13.375" surface casing 2.5 3100 run cement to sea bed 1 3100 Run & Test BOP 1.5 3100 Drill 10.75" hole 4.5 6050 Log 10.75" hole 2 6050 Run 8.625" production Completion 4.5 6050 Run Cement 2 6050
  24. 24. well1 well2 well3 Lower Section 13 3/8” 13 3/8” 13 3/8” 9 5/8” 9 5/8” 9 5/8” Estimated Time (Days) 25 25 25 Total Time to Complete Top Section for all Wells – 75 days 25 days including Rig move and prepare to drill and Running BOP Drilling Time Estimation 32
  25. 25. • Pipe Sticking • Differential-Pressure Pipe Sticking • Mechanical Pipe Sticking • Loss of Circulation • Drillpipe Failures • Twistoff • Fatigue • Pipe-Failure Prevention • Hydrogen-Sulfide-Bearing Zones and Shallow Gas • Since we don’t have log data, we very much depend on the real time drilling operations, Hence we have to be very careful about gas kick or loss. Drilling Challenge 33
  26. 26. • Fire-fighting equipment must be available for emergency use in the event of a fire and should be provided in first-class working order. • Unauthorized person should not be allowed to be on the rig at any time. • Personnel who not involved directly in the particular operation should keep away from operation site. • Sea survival and offshore course is compulsory for all personnel. Safety 34

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