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    Optimization of Casing Design Parameters to Mitigate Casing Failure Caused by Formation Slippage

    Chaoyang Hu1, Chi Ai1,*, Fengjiao Wang1,*

    Structural Durability & Health Monitoring, Vol.12, No.2, pp. 85-98, 2018, DOI: 10.3970/sdhm.2018.00115

    Abstract There has been lack of work efforts on how to optimize cementing and completing parameters in order to prevent casing failure induced by formation slippage in pertroleum industry scope. Once the weak plane fails, the formation will become easily undertaken slippage across a large area along its interface. The plenty of horizontal planes of weakness in reservoir formations, as reported for a number of oilfields, can easily undertaken slippage once it fails. To address the problem, three-dimensional finite element models were established by taking into considerations the elastoplastic mechanical characteristics of both the casing and the near-wellbore rock. Two types… More >

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