A fuzzy system of candidate completion methods selection for multi-fractured horizontal wells in tight oil reservoirs

摘要

Multi-stage fracturing technique has been widely applied to tight oil/gas reservoirs. However, there still exists challenges to select the most applicable and economical well completion methods (WCMs) for a multi-stage fractured horizontal well (MFHW) in a tight oil reservoir. And, the theoretical methods used to select the best WCM for a particular MFHW are not fully investigated. At present, the existing models and methods are basically applied to conventional horizontal wells and the application of relevant models or methods in tight oil reservoirs are rarely involved.