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Casings are set in drilled wells to protect underground formations, prevent drilling problems, and allow production from pay zones. There are three main types of casings: surface, intermediate, and production casings. As a drilling engineer, the document discusses how to properly select the setting depth for intermediate casings. The two main criteria are: 1) containing a potential 20 bbl gas kick, and 2) avoiding differential sticking. The procedure involves calculating fracture gradients, pore pressures,

Author

ehsan

Language

EN