海上气井环空带压管理方案研究及应用
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摘要
据统计目前大部分海上气井都存在环空带压问题,最高环空带压值超过18 MPa,如何管控环空带压气井的安全风险是亟待解决的问题。在研究API RP90和ISO 16530-2等国际标准的基础上,结合海上气井的井身结构、完井管柱和井下工具情况,针对海上环空带压气井,建立了一套适用于海上气井环空带压的管理方案,并通过在海上气田的应用分析证明了方案的可行性。本文研究成果对于海上环空带压气井的安全生产和管理具有指导意义。
Statistics shows that most of the offshore gas wells have the problem of annular pressure. The maximum annular pressure is over 18 MPa. How to control the safety risks in gas wells with annular pressure is a problem demanding prompt solution. Based on research on international standards like API RP90 and ISO 16530-2, and in combination with well configuration, completion strings and downhole tools of offshore gas wells, a set of management program was established, which is suitable for offshore gas wells with annular pressure, and its viability is justified by offshore gas field application. The research findings of this paper have a guiding significance for safe production and management of offshore gas wells with annular pressure.
Statistics shows that most of the offshore gas wells have the problem of annular pressure. The maximum annular pressure is over 18 MPa. How to control the safety risks in gas wells with annular pressure is a problem demanding prompt solution. Based on research on international standards like API RP90 and ISO 16530-2, and in combination with well configuration, completion strings and downhole tools of offshore gas wells, a set of management program was established, which is suitable for offshore gas wells with annular pressure, and its viability is justified by offshore gas field application. The research findings of this paper have a guiding significance for safe production and management of offshore gas wells with annular pressure.
引文
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[2] 李强,曹砚锋,刘书杰,等.海上油气井完整性现状及解决方案[J].中国海上油气,2018,30(6):115-122.DOI:10.11935/j.issn.1673-1506.2018.06.014.LI Qiang,CAO Yanfeng,LIU Shujie,et al.Well integrity status and solution for offshore oil and gas wells[J].China Offshore Oil and Gas,2018,30(6):115-122.DOI:10.11935/j.issn.1673-1506.2018.06.014.
[3] 张喜明,樊建春,杨周,等.海上气井环空带压地面监测诊断方法研究[J].中国安全科学学报,2015,25(6):129-135.ZHANG Ximing,FAN Jianchun,YANG Zhou,et al.Research on ground monitoring diagnosis of sustained casing pressure for offshore gas well[J].China Safety Science Journal,2015,25(6):129-135.
[4] 张智,黄熠,李炎军,等.考虑腐蚀的环空带压井生产套管安全评价[J].西南石油大学学报(自然科学版),2014,36(2):171-177.ZHANG Zhi,HUANG Yi,LI Yanjun,et al.Safety evaluation of production casing considering corrosion in gas well with sustained casing pressure[J].Journal of Southwest Petroleum University(Science & Technology Edition),2014,36(2):171-177.
[5] 武治强,岳家平,李强,等.套管与水泥环胶结界面水力密封完整性评价实验研究[J].中国海上油气,2018,30(6):129-134.DOI:10.11935/j.issn.1673-1506.2018.06.016.WU Zhiqiang,YUE Jiaping,LI Qiang,et al.Experimental study on hydraulic seal integrity evaluation of casing-cement sheath bonding interface[J].China Offshore Oil and Gas,2018,30(6):129-134.DOI:10.11935/j.issn.1673-1506.2018.06.016.
[6] BOURGOYNE A T,SCOTT S L,REGG J B.Sustained Casing Pressure in Offshore Producing Wells[C].Houston,Texas:Offshore Technology Conference,1999.
[7] BOURGOYNE A T,SCOTT S L,MANOWSKI W.A review of sustained casing pressure occurring on the OCS[R].Final Report Submitted to MMS,2000.
[8] American Petroleum Institute.API RP 90 Annular casing pressure management for offshore wells[S].Washington D.C.:API,2006.
[9] American Petroleum Institute.API RP 90-2-2016 Annular casing pressure management for onshore wells[S].Washington D.C.:API,2016.
[10] International Organization for Standardization.ISO/TS 16530-2-2014 Well integrity—Part 2:Well integrity for the operational phase[S].Geneva:ISO,2013.
[11] American Petroleum Institute.API 5C3 Casing,Tubing,Drill Pipe and Line Pipe Properties [S].Washington D.C.:API,2008.
[12] BELLARBY J.Well completion design [M].Aberdeen:UK,Elsevier Science & Technology,2009.
[13] 《海上油气田完井手册》编委会.海洋油气田完井手册[M].北京:石油工业出版社,1998.