[1]伍强,陈波,刘生国. 四川盆地超深高压含硫气井测试管柱设计方法[J].油气井测试,2022,31(01):17-21.[doi:10.19680/j.cnki.1004-4388.2022.01.003]
　WU Qiang,CHEN Bo,LIU Shengguo.A design method of test string for ultradeep and highpressure sour gas well in Sichuan Basin[J].Well Testing,2022,31(01):17-21.[doi:10.19680/j.cnki.1004-4388.2022.01.003]
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 四川盆地超深高压含硫气井测试管柱设计方法()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
31
期数:
2022年01期
页码:
17-21
栏目:
出版日期:
2022-02-25

文章信息/Info

Title:
A design method of test string for ultradeep and highpressure sour gas well in Sichuan Basin
文章编号:
1004-4388(2022)01-0017-05
作者:
伍强1; 陈波2; 刘生国3
1.中国石油化工股份有限公司西南油气分公司石油工程技术研究院 四川德阳 618000
2.中国石油化工股份有限公司西南油气分公司工程技术管理部 四川成都 610000
3.中国石油化工股份有限公司西南石油工程公司井下作业分公司 四川德阳 618000
Author(s):
WU Qiang1;  CHEN Bo2;  LIU Shengguo3
1.Institute of Petroleum Engineering Technology, Sinopec Southwest Oil & Gas Branch, Deyang, Sichuan 618000, China
2.Engineering Technology Management Department, Sinopec Southwest Oil & Gas Branch, Deyang, Sichuan 618000, China
3.Downhole Operation Branch, SINOPEC Southwest Oil & Gas Branch, Deyang, Sichuan 618000, China
关键词:
四川盆地; 超深井; 海相探井; APR测试管柱; 三轴; 液压封隔器; 管柱安全评价
Keywords:
Sichuan Basin;  ultradeep well;  marine exploration well;  APR test string;  triaxial;  hydraulic packer;  string safety evaluation
分类号:
TE27
DOI:
10.19680/j.cnki.1004-4388.2022.01.003
文献标志码:
B
摘要:
四川盆地川东北地区茅口-吴家坪组超深井测试期间存在管柱断裂、封隔器窜漏、阀件打不开、管柱安全系数参考标准不统一等问题。通过梳理测试失败井施工工况、分析导致失败的原因，全面对比涉及管柱强度相关标准，综合考虑鼓胀效应、温度效应、屈曲效应、活塞效应等条件下的三轴安全系数以及抗内压、抗外挤、抗拉条件下管柱安全，建立了超深超高压井管柱强度安全参照标准，确定出适合超深气井抗拉、抗内压、抗外挤以及三轴的计算方法，优选超深含硫气井插管可取式完井液压封隔器（HPH、MHR）作为测试封隔器，并制定测试阀件破裂盘开启值计算方法，形成了一套适用于超深层海相探井的APR测试管柱设计方法。经YF702井应用，测试成功，为类似测试井各工况下施工安全提供了可借鉴的经验。
Abstract:
During the testing of ultradeep wells in MaokouWujiaping formations in northeastern Sichuan Basin, there were problems such as string break, packer leakage, valve failure to open, and inconsistent reference standards for string safety factor. In this paper, the working conditions of failed wells are reviewed and the failure causes are analyzed. With reference to relevant standards for string strength and consideration to the triaxial safety factor under the conditions of bulging effect, temperature effect, buckling effect and piston effect, as well as the string safety under the existence of internal pressure, external pressure and tension, the safety reference standard of pipe string strength in ultradeep and ultrahighpressure wells is established, and the calculation method of tensile, internal pressure, external pressure and triaxial tensile strengths for ultradeep gas wells is determined. Then, the retrievable completion hydraulic packers (HPH, MHR) for ultradeep sour gas wells are selected as the test packers, and the calculation method of the opening value of the broken disc of the test valve is formulated. Finally, an APR test string design method for ultradeep marine exploration wells is formed. This method has been successfully applied in Well YF702, and provides a reference for safe testing in similar well conditions.  In order to solve the problems of string fracture, packer leakage, valve failure to open and inconsistent reference standards for string safety factor during the test of ultra deep wells in Maokou Wujiaping formation, by combing the construction conditions of failed wells, analyzing the causes of failure, comprehensively comparing the relevant standards related to string strength, and comprehensively considering the bulging effect, temperature effect, buckling effect The triaxial multi safety factor under the “four effects” such as piston effect and the safety of string under the conditions of internal pressure resistance, external extrusion resistance and tension resistance, the safety reference standard for string strength of ultradeep and ultrahigh pressure well is established, the calculation method suitable for tension resistance, internal pressure resistance, external extrusion resistance and triaxial of ultradeep gas well is determined, and the intubation removable completion hydraulic packer (HPH, MHR) of ultradeep sour gas well is optimized Make a test packer and formulate a calculation method for the opening value of the broken disc of the test valve. A set of APR test string design method suitable for ultra deep marine exploration wells has been formed, which has been applied in yf702 and other wells to ensure the construction safety of the test wells under various working conditions

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备注/Memo

备注/Memo:
 2021-02-19收稿，2021-07-17修回,2022-01-17接受,2022-02-20网络版发表
伍强，男，1983年出生，副研究员，硕士研究生，2009年7月毕业于西南石油大学油气田开发专业，主要从事高含硫气井完井测试相关研究。电话：0838-2551326，18683985554，Email:634965966@qq.com。通信地址：四川省德阳市旌阳区龙泉山北路298号，邮政编码：618000。
更新日期/Last Update: 2022-04-19