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Analysis of the Collapse Gradient of Deep Water Horizontal Wellbore and the Effects of Mud Chemical Activity and Variation in Water Depth


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Figure 1

Effect of water depth on the critical mud weight
Effect of water depth on the critical mud weight

Figure 2

Variation of wellbore collapse within the formation due to the column of water
Variation of wellbore collapse within the formation due to the column of water

Figure 3

Effect of mud chemical activity on the critical mud weight
Effect of mud chemical activity on the critical mud weight

Figure 4

Effect of mud chemical activity on the collapse gradient for different shale chemical activities.
Effect of mud chemical activity on the collapse gradient for different shale chemical activities.

Data for well A1 used in the study.

σv = 22.621 kPa/mφ=32°
σH = 19.228 kPa/mZ = 1524 m
σh = 18.096 kPa/maw,shale = 0.8
po = 10.179 kPa/maw,mud = 0.8
c = 4826.33 kPaθ = N0E
μ = 0.28Zw = 152.4 m
eISSN:
2083-831X
Sprache:
Englisch
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Geowissenschaften, andere, Materialwissenschaft, Verbundwerkstoffe, Poröse Materialien, Physik, Mechanik und Fluiddynamik