Construction of an Extended-Reach Well Torque Prediction Model Based on Multi-Source Drilling Data Fusion and Analysis of Dominant Factors
Extended-reach wells contain long, highly inclined intervals in which drill-string/wellbore contact and cumulative friction evolve continuously with depth, making torque prediction strongly nonstationary. This study develops a multi-source torque-prediction framework using 5977 field samples from a deepwater extended-r...