1. Lesson 3 The Rig - Drilling Equipment
PETE Well 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. Thus: Pump Factor = 0.2052 bbl/stroke
Recall:
There are 231 in.3 in an 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.
= bbl/stroke.
Thus: Pump Factor = 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
= bbl/min
= 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. Cutaway View and Dimensions for Example Tool Joint
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. Kick Detection During Drilling Operations
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. Fig. 1.44 Annular Blowout PreventerDP TJ DC OH
Press
Fig Annular Blowout Preventer

22. Ram Blowout Preventer

23. Ram Blowout Preventer - cont’d
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. Fig. 1.57 Spread Mooring Systems
OFFSHORE DRILLING
Fig Spread Mooring Systems

28. Fig. 1.58 Schematic of Equipment for Marine Drilling

29. Fig Operation of a
Heave Compensator

30. Fig Subsea BOP Stack

31. Fig. 1.63 Subsea Equipment Installation Procedure

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

33. Some Typical Casing Strings
Depth Below ML
Conductor pile ” 30” 200’
Conductor Casing 26” 20” ’
Surface Casing /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 * = in2
Length = 10,000 ft = 120,000 in
Capacity = *120,000 in3 /(231*42 in3 /bbl)
Capacity = 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 * ( )
= in2
Length = 10,000 ft = 120,000 in
Displ. = * 120,000 in3 /(231 * 42 in3 /bbl)
Displacement = ? Bbls
Displ. = bbls