Well drilling in weak clay-claystone rocks: challenges and remedies
https://doi.org/10.31660/0445-0108-2020-2-18-25
Abstract
The maintenance safety of the wellbore in clay-claystone formations is important aim for modern investigations for companies in Western Siberia as usual. There is a lot of non-productive time to do sidetrack due to weak clay rocks. The analysis was done to solve these true challenges of the sidetrack into the different production zones. There is a lot of non-productive time for the accident responses because of wellbore lose control. For example, 50 % of drilling time has non-productive time to stabilize wellbore. There are the most effective ways to prevent losing control of wellbore: control of mud density and pressure drop variation, using of inhibitors with high effectivity, applying stabilizing bath in dangerous zones.
About the Authors
A. D. Bakirova
Industrial University of Tyumen
Russian Federation
Russian Federation
Adelya D. Bakirova, Postgraduate, Assistant at the Department of Drilling Oil and Gas Wells
Tyumen
D. V. Shalyapin
Industrial University of Tyumen; KogalymNIPIneft Branch of LUKOIL-Engineering LLC
Russian Federation
Russian Federation
Denis V. Shalyapin, Postgraduate; Engineer of 2nd grade of the Reseach Works in Drilling and Cement Muds Department
Tyumen
E. V. Babushkin
KogalymNIPIneft Branch of LUKOIL-Engineering LLC
Russian Federation
Russian Federation
Eduard V. Babushkin, Candidate of Engineering, the Chief of the Well Profile Design and Monitoring Department
Tyumen
D. L. Bakirov
KogalymNIPIneft Branch of LUKOIL-Engineering LLC
Russian Federation
Russian Federation
Daniyar L. Bakirov, Candidate of Engineering, Assistant Director of Branch
Tyumen
V. G. Kuznetsov
Industrial University of Tyumen
Russian Federation
Russian Federation
Vladimir G. Kuznetsov, Doctor of Engineering, Professor at the Department of Drilling Oil and Gas Wells
Tyumen
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Review
For citations:
Bakirova A.D., Shalyapin D.V., Babushkin E.V., Bakirov D.L., Kuznetsov V.G. Well drilling in weak clay-claystone rocks: challenges and remedies. Oil and Gas Studies. 2020;(2):18-25. (In Russ.) https://doi.org/10.31660/0445-0108-2020-2-18-25
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