Casing serves numerous purposes during the drilling and production history of oil and gas wells. Below listed are some points. Which of the following is NOT the purpose of casing? a. Prevent the weak formations from collapsing, i.e., caving of the hole b. Serve as a high strength flow conduit to surface for both drilling and production fluids c. Protects the freshwater-bearing formations from contamination by drilling and production fluids d. Provides a suitable support for wellhead equipment and BOPs e. Contributes to formation of mud cake and reduces water loss e. Provide safe passage for running wireline equipment f. Allow isolated communication with selectively perforated formation(s) of interest g. Helps maintaining the Bottom Hole Pressure (BHP) during well control operation
Posted on: Tue, 29 Oct 2013 14:13:39 +0000
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