Efficiency of Inhibitive Mud Application in Horizontal Wells

Currently, we have been witnessing the increasing number of problems in drilling caused by certain challenges in drilling through depleted reservoirs, complicated geological settings, and fast-growing technology of extended reach drilling. One of the methods used to solve the problems is casing-whil...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 272; no. 2; pp. 22044 - 22048
Main Authors Khuzina, L B, Golub, S I, Usmanov, R A
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.06.2019
Subjects
Coefficient of friction
Drilling
Friction
Gas wells
Horizontal wells
Rolling resistance
Sliding friction
Torque
Well drilling
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Summary:Currently, we have been witnessing the increasing number of problems in drilling caused by certain challenges in drilling through depleted reservoirs, complicated geological settings, and fast-growing technology of extended reach drilling. One of the methods used to solve the problems is casing-while-drilling. The authors have been studying the difficulties occurring while using this method with a special focus on the issue of torque increase while rotating a casing string at an excessive speed. The paper presents calculations of the torque taking into account the friction coefficient. As an effective solution to reduce the torque a new centralizer has been designed in the laboratory of the Department of Oil and Gas Well Drilling of Almetyevsk State Oil Institute. While performing casing drilling operations a new centralizer with roller balls attached makes it possible for rolling friction to be replaced with sliding friction and, thus, prevent thread stripping.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/272/2/022044