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- Title
A REVIEW OF WELLBORE INSTABILITY DURING WELL CONSTRUCTION: TYPES, CAUSES, PREVENTION AND CONTROL.
- Authors
Chukwuemeka, Augustine Okechukwu; Amede, Goodluck; Alfazazi, Umar
- Abstract
Since early 1980s, the oil and gas industry has committed a huge amount of resources towards solving the problem of wellbore instability. Investments in wellbore stability studies are justified by the reduction in drilling and field development costs associated with a stable wellbore. A lot of progress has been made so far. However, wellbore instability continues to present a considerable challenge during well construction operations. The causes of instability and the mechanism of instability especially in shale formations have been studied over the years by several researchers. The results of their experimental and field experiences lead to varying conclusions and differing opinions. This work reviews existing technologies and practices within the industry directed towards understanding the causes of, predicting, preventing, and controlling wellbore instability; highlighting in the process, their limitations and making relevant suggestions. Field examples also provided to buttress some points.
- Publication
Petroleum & Coal, 2017, Vol 59, Issue 5, p590
- ISSN
1335-3055
- Publication type
Academic Journal