应用清洁无固相完井盐水置换钻井液是完井作业的一个关键步骤。随着钻井水域及井深越来越深(井深超过7600m),常规作业方法和清洗液已难以满足完井作业的要求。常规井眼清洗液是淡水或加有表面活性剂的海水,用来除去井眼中的固相和水润湿管。在应用低密度清洗液洗井时,会在压井? Applying clean solids-free completion brine to replace drilling fluid is a key step in completion. With deeper and deeper drilling waters and deeper wells (well depths exceeding 7600 m), conventional methods and cleaning solutions have not met the requirements of completion operations. Conventional wellbore cleaning fluids are freshwater or surfactant-laden seawater used to remove solid phase and water wet tubes from the wellbore. In the application of low-density cleaning fluid washing wells, will kill?