CAJ | 학술논문

由于井身结构广泛采用非标套管，需要研制非标套管悬挂器。针对206．4 mm（8英寸）套管悬挂器，采用理论计算与有限元仿真相结合方法。对套管悬挂器在试压（105 MPa）条件下进行强度校核。研究表明：16 mm壁厚时可承受最大压力120．336 MPa；套管悬挂器坐封完毕，最大应力437．3 MPa，低于725HS镍基合金的屈服强度（1074 MPa），套管悬挂器强度在安全范围。此研究方法可以推广到其他非标套管悬挂器的研发，研究结果对于确保油气井的正常钻采作业具有十分重要的意义。
유우정신결구엄범채용비표투관，수요연제비표투관현괘기。침대206．4 mm（8영촌）투관현괘기，채용이론계산여유한원방진상결합방법。대투관현괘기재시압（105 MPa）조건하진행강도교핵。연구표명：16 mm벽후시가승수최대압력120．336 MPa；투관현괘기좌봉완필，최대응력437．3 MPa，저우725HS얼기합금적굴복강도（1074 MPa），투관현괘기강도재안전범위。차연구방법가이추엄도기타비표투관현괘기적연발，연구결과대우학보유기정적정상찬채작업구유십분중요적의의。
As well structure widely has been used non-standard casing,so it is necessary to re-de-velop non-standard casing hanger.In this paper,by adoption of 8″casing hanger,theoretical cal-culation and finite element simulation combined analysis were used.Under the 105MPa,the pres-sure of casing hanger has been tested the strength.Studies show that:under the Casing hanger pressure test processing,16mm Wall thickness withstood the maximum pressure120.336 MPa. Casing hanger packer has been completed,with maximum stress 437.3 MPa,which lower yield strength of the Ni-based alloy.Casing hanger strength has been in a safe range.This research method can be extended to other non-standard casing hanger development,the results will not on-ly be able to meet the engineering requirements,but also to ensure the normal drilling operations wells has very important significance.