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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 Cover

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

Studia Geotechnica et Mechanica
Volume 42 (2020): Issue 3 (September 2020)
By: Adewale Dosunmu,  Roland I. Nwonodi and  Evelyn Ekeinde  
Open Access
|Apr 2020

Figures & Tables

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
DOI: https://doi.org/10.2478/sgem-2019-0040 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365
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Language: English
Page range: 232 - 241
Submitted on: Oct 5, 2019
Accepted on: Feb 2, 2020
Published on: Apr 9, 2020
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Mogi-Coulomb criterion,
collapse gradient,
horizontal well,
deepwater,
chemical activity
Related subjects:
Geosciences,
Geosciences, other,
Materials sciences,
Composites,
Porous materials,
Physics,
Mechanics and fluid dynamics

© 2020 Adewale Dosunmu, Roland I. Nwonodi, Evelyn Ekeinde, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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