Mechanism and prevention method of drill string uplift during shut-in after overflow in an ultra-deep well

Drill string will sustain large uplift force during the shut-in period after gas overflow in an ultra-deep well, and in serious case, it will run out of the wellhead. A calculation model of uplift force was established to analyze dynamic change characteristics of the uplift force of drill string dur...

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Bibliographic Details
Main Authors: Hu YIN, Menghan SI, Qian LI, Hongwei JANG, Liming DAI
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2018-12-01
Series:Petroleum Exploration and Development
Online Access:http://www.sciencedirect.com/science/article/pii/S1876380418301174