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## PETE 411 Well Drilling

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### ... Pump Rate = 317 gal/min Hydrocyclone desander desilter * No moving parts * Low cost * Pressure drop * Diameter Decanting Centrifuge Use? Use? Fig ... – PowerPoint PPT presentation

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Title: PETE 411 Well Drilling

1
PETE 411 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
• 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
5
(No Transcript)
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 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.
• 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
2
KICK
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 - contd
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
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
Depth Below 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
/(23142 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