膨胀式尾管悬挂器用膨胀管受力分析

Force Analysis of Expandable Tube for Expandable Liner Hanger

膨胀式尾管悬挂器是一种新型的尾管固井、完井工具,其工作的核心构件是膨胀管,膨胀管的膨胀性能是悬挂、坐封成功的关键。对膨胀管的膨胀力及膨胀后的外径比理论外径缩小量进行了分析,并探讨了一种理论计算方法,为膨胀管材料的选择、结构的设计提供了一定理论依据。

Expanding drilling liner hanger is a new type of tool for liner cementing and well completion,bulged tube is the core component part of the expanding drilling liner hanger,the expandability of the bulged tube is the key of successful hanging and setting.The bulging force of the bulged tube was analyzed in this dissertation;a theory method to compute the reduction of the actual OD was probed after expanding compared with the theory OD,which can offer theory reference for material selecting and structural design of the bulged tube.