stuck pipe mechanisms
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O.C.T.G. Procter Consultancy Ltd
Stuckpipe MechanismBook
NS-10
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0 15 30 45 55 60 75 90
Hole
CleaningDifficulty
Ho le Inclination
Thick M ud Thin M udThin Mud
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FLUIDSFLOW
SOLIDS
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PermeableFormation
Wellbore
Conta
ct Overbalan
ce
Lack of String Movement
PermeableFormation
Wellbore
Conta
ct Overbalan
ce
Lack of String Movement
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17 1/2 Poss No No No
5 3/4 Yes Yes Yes Poss
16 Poss Poss No No
12 1/4 Yes Poss Poss No
8 1/2 Yes Yes Poss No
120 ft 90 ft 60 ft 30 ft
Drill Collar - Wellbore Contact : 0 to 3 deg
17 1/2 Yes Yes No No
5 3/4 Yes Yes Yes Yes
16 Yes Yes No No
12 1/4 Yes Yes Poss No
8 1/2 Yes Yes Yes No
120 ft 90 ft 60 ft 30 ft
Drill Collar - Wellbore Contact : 30 to 50 deg
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Notes
O/p 10 k
O/p 10 k Swelling
shale?
O/p 10 k
LEDGE !?
O/p 30 k (stab 1 at ledge above)
O/p 30 k (stab 2 at ledge above)
LithROP BHA
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Pressure
Depth
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Pressure
Depth
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2 Coil Tubing in 5 Liner 2 Coil Tubing in 7 Liner2 Coil Tubing in 3.75 Hole
0
50
100
150
200
250
300
7" Liner 5" Liner 3 3/4 Hole
AnnularVelocityft/min
.24 Bbl/min
2.38 Bbl/min
3.57 Bbl/min
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0 20 40 60 80 100 120 140 160
6000
4000
2000
0 LEGEND
Trip In
Trip Out
Min Weight Plastic
Min Weight Buckle
Measured Weight at Surface
Depth[ft]
Measured W eight [kip]
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