摘要
可旋转膨胀尾管悬挂器结构复杂,施工工艺不同于常规悬挂器,现场试验难度大。为解决该问题,分析了177.8mm×139.7mm可旋转膨胀尾管悬挂器及各关键部件的结构和工作原理,根据整机地面膨胀试验、悬挂性能测试、模拟入井试验等试验结果,确定了悬挂性能参数、膨胀性能参数和施工参数,并制定了现场施工工艺。可旋转膨胀尾管悬挂器在GSS-036LR井进行了现场试验,成功完成固井作业,膨胀压力小于20 MPa,膨胀施工作业排量小于0.2m3/min。研究表明,研制的可旋转膨胀尾管悬挂器能够实现旋转、膨胀坐挂和丢手功能,施工工艺可满足现场施工需求。
Because structures are now more complex than in conventional hangers, rotary expandable liner hangers may involve higher difficulties in field tests and different operational procedures. To solve relevant problems, the structures and operational principles of φ177.8 mm×139.7 mm rotary expandable liner hangers and their key components were studied. Through tests of overall expansion on surface, hanging performances and simulated downhole operations, suspension, expansion and other properties of such liner hangers could be clarified together with relevant operational parameters. In addition, on-site application techniques were highlighted. On-site applications were made for the rotary expandable liner hanger in the Well GSS-036LR resulting in successful cementing operations with expansion pressures lower than 20 MPa and discharging rates below 0. 2 m3/min in expansion operations. Research results showed that the newly developed rotary expandable liner hanger may be used successfully for rotation, expansion and liner setting, releasing and other operations, operation techniques can fully meet on-site demands.
出处
《石油钻探技术》
CAS
CSCD
北大核心
2016年第3期55-60,共6页
Petroleum Drilling Techniques
基金
中国石化科技攻关项目"可旋转膨胀尾管悬挂器的研制"(编号:P13144)部分研究内容
