QT-127型全通径无级投球压裂滑套研制

Oil Field Equipment(2021)

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Abstract
水平井分段压裂技术是高效开发致密油气藏的主要手段.常规投球滑套+裸眼封隔器分段压裂技术的分层数量有限,无法满足致密油气藏的精细开发需要.研制了一种全通径无级投球滑套,球座的内径相同,球座与压裂滑套采用分体式设计.该滑套随压裂管柱一起下入井内,压裂作业时,球座与可溶压裂球一起投入压裂管柱内,加液压力使滑套开启.功能试验表明,投入式球座可通过不同级别滑套,并实现同级别滑套打开.球座经过50次通过性能测试后,硫化橡胶与胶筒密封性能满足作业需要.
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