PETE 411 Well Drilling

1. PETE 411Well Drilling Lesson 3 The Rig - Drilling Equipment

2. Contents • Rig Pumps • Solids Control Equipment • Air Drilling • The Rotary System • The Swivel • The Well Control System • The Well Monitoring System • Offshore Drilling

3. Assignments: READ: ADE Ch. 1, to p.30 HW #1:ADE 1.1, 1.2, 1.3 Due Monday, Sept. 9, 2002 at the beginning of class NOTE: Answers in book are not always correct...

4. Schematic of Rig Circulating System for liquid drilling fluid

6. Example 1.3 Compute the pump factor in units of barrels per stroke for a double-acting duplex pump having: 6.5-inch liners (dL) 2.5 inch rods (dr) 18-inch strokes (LS) and a volumetric efficiency of 90%. (EV)

7. Solution: The pump factor for a duplex pump can be determined using Equation 1.10

8. Recall: There are 231 in.3 inan U. S. gallon and 42 U.S. gallons in a U.S. barrel. Thus converting to the desired field units yields: 1991 in.3/stroke * gal/231 in.3 * bbl/42 gal. = 0.2052 bbl/stroke. Thus: Pump Factor = 0.2052 bbl/stroke

9. Pump Factor = 3 * p/4 dL2 LS EV/(231 * 42)

10. Example: Pump Factor for Triplex Pump

11. Example: Pump Rate = Pump Factor * Strokes/min = 0.09442 = 7.554 bbl/min = 317.3 gal/min Pump Rate = 317 gal/min

12. Hydrocyclone • desander • desilter * No moving parts * Low cost * Pressure drop * Diameter

13. Decanting Centrifuge Use?

14. Use?

15. Fig. 1.33 Schematic of Rotary System

16. Fig. 1.34 Cutaway View of Swivel * Seals * Bearings ROTATING

17. PIN BOX TJ Shoulder Fig. 1.38 Cutaway View and Dimensions for Example Tool Joint

18. Fig. 1.39 Stabilizer * Keeps pipe in center of hole * Aids in drilling straight hole * Prolongs bit life

19. Fig. 1.41 Kick Detection During Drilling Operations 3 GAIN IN PIT VOLUME EQUAL TO KICK VOLUME KICK 2 1

20. Fig. 1.46 Remote Control Panel for operating Blowout Preventers CHOKE What to do if KICK occurs?

21. DP TJ DC OH Press Fig. 1.44 Annular Blowout Preventer

22. Ram Blowout Preventer

23. SHEAR / BLIND RAM ASSEMBLY Ram Blowout Preventer - cont’d

24. Fig. 1.48 Rotating Blowout Preventer

25. Fig. 1.51 High-Pressure Circulating System for Well Control Operations Kick Keep BHP const.

26. Fig. 1.56 Subsurface Well Monitoring System MWD

27. OFFSHORE DRILLING Fig. 1.57 Spread Mooring Systems

28. Fig. 1.58 Schematic of Equipment for Marine Drilling

29. Fig. 1.59 Operation of a Heave Compensator

30. Fig. 1.60 Subsea BOP Stack

31. Fig. 1.63 Subsea Equipment Installation Procedure

32. Typical Casing Strings Water Level Depth Seafloor Below ML Conductor pile 36” 30” 200’ Conductor Casing 26” 20” 1000’ Surface Casing 17 1/2” 13 3/8”4000’ Hole Csg. Depth

33. Some Typical Casing Strings DepthBelow ML Conductor pile 36” 30” 200’ Conductor Casing 26” 20” 1000’ Surface Casing 17 1/2” 13 3/8”4000’ Hole Csg. Depth

34. Capacity = Area * Length

35. What is the capacity of 10,000 ft of 5” OD, 19.50 lb/ft drillpipe? Capacity = Area * Length Area = p/4 d2 = p/4 * 4.2762 = 14.36 in2 Length = 10,000 ft = 120,000 in Capacity = 14.36 *120,000 in3 /(231*42 in3 /bbl) Capacity = 177.6 bbls

36. What is the displacement of 10,000 ft of 5” OD, 19.50 lb/ft drillpipe? Capacity = Area * Length Area = p /4 (od2 - id2 ) = p /4 * (52 - 4.2762) = 5.275 in2 Length = 10,000 ft = 120,000 in Displ. = 5.276 * 120,000 in3 /(231 * 42 in3 /bbl) Displacement = ? Bbls