高温高压气井完井管柱设计方法  

Design of Completion String in High Temperature and High Pressure Gas Well

作　　者：段泽辉 张智 张超 王汉[2] 曾春珉 李晶[2] 

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500

出　　处：《重庆科技学院学报（自然科学版）》2017年第1期67-70,74,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技支撑计划项目"高强度耐腐蚀油井管用钢生产技术"(2011BAE25B04);国家科技重大专项"大型油气田及煤层气开发"(2011ZX05023-004);四川省科技厅项目"页岩气水平井套管完整性研究"(2016JQ0010);四川省省属高校科技创新团队建设计划项目"井筒完整性与安全"(13TD0026)

摘　　要：针对莺琼盆地高温高压地质环境对完井管柱选材、套管柱适用性设计等方面带来的一系列的技术问题,开展了高温高压气井完井管柱选材及基于服役寿命的套管柱适用性设计研究。在常规气井基础上,考虑了高温下材料强度降低的补偿设计,拉力余量法的套管柱设计,腐蚀缺陷套管剩余强度设计和环空带压对生产套管强度的影响,并结合目标井进行了实例分析。In order to solve a series of technical problems brought by the geological environment of high temperature and high pressure reservoir in Yingqiong basin,this paper aims to study the casing string design,in the perspectives of selection of well completion pipe strings and the applicability of it. On the basis of conventional gas well,we take many factors into consideration,such as compensation design of material strength reduction under high temperature,casing string in tension residual method,residual strength design of corrosion defect casing and annulus pressure on the strength of the casing. Finally,an example analysis is carried out in combination with aimed well.

关 键 词：高温高压 完井管柱 服役寿命 腐蚀缺陷 环空带压 

分 类 号：TE257[石油与天然气工程—油气井工程]