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Adeyemi Gbadegesin
Adeyemi Gbadegesin
Nigeria
Publications
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Review Article
Improved Model for Predicting Annulus Pressure Drop during Underbalanced Drilling
Author(s): Fadairo Adesina Samson, Adeyemi Gbadegesin, Bello Kelani and Olafuyi Olalekan Fadairo Adesina Samson, Adeyemi Gbadegesin, Bello Kelani and Olafuyi Olalekan
Most time during underbalanced drilling or cleaning of well, formation fluid (oil and water) influx is usually experienced as soon as productive zone is penetrated because formation pore pressure gradient are higher than hydrostatic pressure gradient. Successful flow of fine drilling cuttings and formation fluid (gas, oil and water) to the surface flow facilities therefore demands for accurate prediction of pressure drop along the well bore during underbalanced drilling. Previous studies on pressure profile prediction in the wellbore during underbalanced drilling have not taken into account the effect of cuttings volume. The purpose of this study is therefore to develop an improved model that predicts the effect of cuttings volume on annulus pressure drop in the wellbore during underbalanced drilling. This is an extension of Guo and Fadairo model for investigating the effect of cuttin.. View More»
DOI: 10.4172/2157-7463.1000203