q933+de2 reference fa lec
TRANSCRIPT
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.1 .2 .3 .4 .5 .6.7
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Last session (Review)Session Outlook
Presentation ABreak TimePresentation B
Next Session Topics
Roll Call
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)( ) (K. K. Millheim - M. E. Chenevert - F. S. Young Jr. : Applied Drilling Engineering
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Drilling officeLandmark
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well Architecture
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. : The well prognosis The well program
The drilling and casing program ) ( . -
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The well prognosis :
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The well program
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.): ( overburden pressureHorizontal formation pressure:
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): ( overburden pressure pv=yvh :
Y h: pv: .
S. G. R n: h:
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Typical values for (Po/D) psi/ft KPa/meterSandstone 30% porosity . . Sandstone 20% porosity . . Sandstone 10% porosity . . Sandstone 0% porosity . . Siltstone . Shale . . Limestone . Dolomite . . Anhydrite . .
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22 PPG . % .
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Horizontal formation pressure: :
K: V: .>v
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P: H: YM:
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pore water pressure:
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ppp psi/ft / psi/ft /
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. subnormal pressure . psi/ft/
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. psi ) ( psi/ft .
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Under compaction in shale
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)( salt bed
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Mineralization . : % .
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)( Tectonic causes
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. Diapirism
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Leak-off Test
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P=L(Y/300d)P = psiL = ft Y= lb/100 ftd = in
( (P=L[Y/300(D d)]
P= psi L= ftY= ) (IB D= ind= in
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ft . in in lb/100 ft
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Y=10 lb/100 ft L=12000 ft d=4. 276 inP=L(Y/300d)=12000[10/(300. 4. 276)]=12000. 0. 078 =94psi
psi .
D=8 in d=5 in P=L[Y/300(D d)]=12000[10/300(8 -5)] =12000. 0. 0095 =114 psi
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Leak-Off Pressure .
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Mini- frac Leak-off test
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Pigott
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rittingers V: ft/secD: ft
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Well Head
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Tapered Shape
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Conductor Pipe Surface Casing Intermediate Casing Production Casing Liner Casing
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Drive or conductor pipe
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Surface Casing
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Intermediate Casing Protective Casing :
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Production Casing
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Liner Liner Hanger Hang
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Tie Back
Reduced Diameter
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Liner Hanger .
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(Tubing)
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)Manufacturing Process( )Length Range( )Casing Size( Steel Grade )Nominal Weight( )Casing Coupling & Thread( )Drift Diameter( sulfide &sour environment resistance
API SPEC. 5A) ( . -
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Manufacturing Process (Seamless) . (Electric Weld) :
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length range . . :
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outside diameter .
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Tolerance/ / -/ .
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(Steel Grade)
Microstructure ( .
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1000 psi . )H2S (
API C75 L80 C95 .) ( . -
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)Weight per unit length lb/ft( API :
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Plain End Weight
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Power Tight .
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Coupling
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Thread Height or Depth Crest Root .
Lead . Taper
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(Drift diameter)
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(H2S resistance)
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)Pipe Body ( )Coupling ( :
)Yield Strength ( )Collapse Strength( )Burst Strength (
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OA Hook :
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yield point
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.1 2.(WEC) Rabia Hussain. Well Engineering & Construction. Entrac Consulting Limited .2002 Chapter 4&5 NIDC .3
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( ) (Collapse Loading( . . . (Burst Loading)
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)( Tensile Loading
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Buoyancy
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)Design Criteria( :
)Collapse Pressure( )Burst Pressure( )Axial Tension( )Compression Loading( )Other Loading(
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)Safety Factor( .
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85 .0 1. 125 1 1. 1 3 .1 1. 8
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. )SF ( :
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)Drill out Shoe ( . ) Complete Loss( ) ( . -
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Burst Liner
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Bending Force
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.1 2.(WEC) Rabia Hussain. Well Engineering & Construction. Entrac Consulting Limited .2002 Chapter 4&5 .3
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)shoe( . cement collar
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Cement plug .
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differential pressure sticking
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.1 2.(WEC) Rabia Hussain. Well Engineering & Construction. Entrac Consulting Limited .2002 Chapter 4&5
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. . . . (Recovered Core) .
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bottom hole coring
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STABILIZER .
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TUBE INNER
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ball bearing swivel .
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rabbit plug . rabbit .
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sidewall coring
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CST chronological sample taker
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Blow out
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Wait and Weight Driller's Method
Concurrent Method
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