摘要
当一口井有多个射开层或对老井复试,仅对某一层段进行试油时,采用桥塞封堵比用注水泥塞封堵上返试油具有方法简单、使用方便、缩短作业周期、减少对油层伤害等特点。将RD安全循环阀、Y445型油管桥塞和试压封隔器有机组合,可形成卡层、试压、抽汲、压井一体化管柱,满足卡层试压、复试、顶封试油、压裂酸化改造、活性水洗井等多种工艺需求。
When a well having multi-perforated layers or reexamine being conducted for old well, using plug to seal has features of being simple, shortening working cycle and reducing damage to formation comparing to cement of oil testing upward. Integrating combination of RDS valve, Y445 model of tubing bridge plug and pressure test packer, unitization string design of stuck layer, pressure test, swab, well killing is formed to satisfy many technical needs of sealing layer to test pressure, reexamine, testing to closed-top layer, fracturing and acidification reform, washover with active water.
出处
《油气井测试》
2007年第5期50-51,共2页
Well Testing
