Development and application of wellbore heat transfer model considering variable mass flow

Dual-gradient drilling technology is being increasingly used in formations with narrow pressure margins. For dual-gradient drilling based on downhole separation, hollow spheres are separated into the annulus at the separator position, resulting in variable mass flow in the wellbore. Thus, existing h...

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Bibliographic Details
Main Authors: Jiangshuai Wang, Jun Li, Gonghui Liu, Shujie Liu, Meipeng Ren, Kuidong Luo, Shanxun Tao
Format: Article
Published: Elsevier 2021-06-01
Series:Underground Space
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