Gas wells are often subject to periodic or cyclic curtailment. Currently available methods are poorly suited for analyzing production data from these wells. Using methods presented in this paper, an equivalent continuous flowing pressure can be calculated from pressures measured at the end of the flow and shutin periods during each cycle. This equivalent continuous flowing pressure is then used for production data analysis in conjunction with the average flow rate. This method is applicable for boundary dominated flow, transient radial flow, and transient linear flow of slightly compressible liquids in a homogeneous formation. The method may be applied to gas well production data through the use of pseudopressure or normalized pressure.

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