膨胀悬挂器本体膨胀性能试验研究  

Experiment Study on Expansion Body of Liner Hanger

作　　者：谷磊[1] 郑晓志[1] 刘明[1] 韩峰[1] 

机构地区：[1]中国石化石油工程技术研究院,北京100101

出　　处：《机械设计与制造》2015年第8期229-231,共3页Machinery Design & Manufacture

基　　金：中国石化科技攻关课题(P13144)资助

摘　　要：膨胀悬挂器依靠硫化橡胶的本体膨胀发生塑性变形,并与上层套管形成摩擦力悬挂尾管,橡胶起到密封和增大摩擦力的作用。悬挂较重的尾管需要增加本体长度,导致悬挂器整体结构增加,增大了悬挂器入井和施工风险。针对该问题优化本体设计,在本体外壁镶嵌金属块并硫化橡胶,通过膨胀试验验证了该方法的可行性,为掌握本体膨胀后与上层套管的接触应力,采用应力测试方法对本体膨胀过程中上层套管的应变进行了测量并计算得到接触应力,试验数据表明膨胀悬挂器经过结构优化在保证悬挂、密封性能的前提下使膨胀本体缩短,从而提高了现场施工的可靠性。Expansion body vulcanizedrubber of expandable liner hanger can expand and cause plastic deformation, so that friction is formed between body and casing to hang liners. And rubber can seal and increase friction. Length of expansion body will increase in order to hang more heavy liners, which makes liner hanger run in and operate difficultly. Metal mechanism was craved and rubber was vulcanized on expansion body to resolve the problem. The properties of expansion body were tested by expanding experiment. Strain gages were stuck on the casing to measure the strains, so contact stresses between expansion body and casing was computed. Data suggests that hanging fore and sealing pressure is reliable after optimizing structure of expansion body, so operation reliability is increased.

关 键 词：尾管悬挂器 膨胀 膨胀本体 密封 应变片 

分 类 号：TH16[机械工程—机械制造及自动化] TE925.2[石油与天然气工程—石油机械设备]