套管悬挂器抗内压结构安全性分析  

Casing Hanger Internal Pressure Structural Safety Analysis

作　　者：杨赟达[1] 刘绘新[1] 胥志雄[2] 王延民[2] 梁红军[2] 胡文礼 曾晓兰[4] 

机构地区：[1]西南石油大学机电工程学院,成都610500 [2]中石油塔里木油田,新疆库尔勒841000 [3]中国石油天然气管道局第五工程公司,河北任丘062552 [4]宝鸡石油机械有限责任公司,陕西宝鸡721002

出　　处：《石油矿场机械》2014年第2期75-78,共4页Oil Field Equipment

基　　金：中石油科研课题"气体钻井井口装置冲蚀机理研究与结构改进"(2010C-2100)

摘　　要：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206.4mm(81/8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(105MPa)条件下进行强度校核。研究表明:16mm壁厚时可承受最大压力120.336MPa;套管悬挂器坐封完毕,最大应力437.3MPa,低于725HS镍基合金的屈服强度(1 074MPa),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。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.

关 键 词：套管悬挂器 强度 分析 有限元 

分 类 号：TE925[石油与天然气工程—石油机械设备]