套损井大通径膨胀薄壁管补贴修复技术研究
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摘要
采用低合金材料的薄壁补贴管进行套管补贴,能够获得比常规膨胀补贴更大的补贴通径。在提出薄壁管补贴材料选择要求的基础上,对补贴管结构进行了设计,采用ANSYS软件对补贴膨胀过程进行了力学分析。分析结果表明:薄壁补贴管的膨胀补贴过程符合金属材料塑性变形规律,在膨胀过程中补贴管会产生应力波动,应力值始终位于材料的屈服强度和抗拉极限之间,其最大应力为925.06 MPa,补贴管能够对套管进行修复而不发生断裂破坏。研究结果可为薄壁补贴管的现场应用提供参考。
The use of low-alloy material thin-walled tubular for casing patch could obtain a larger diameter than the conventional expandable casing patch system.On the basis of the material selection requirements of the thin-walled patch tubular,the structure of the patch tubular has been designed.The mechanical analysis of the expansion patch process has been carried out using ANSYS software.The results show that the expansion and patch process of the thin-walled patch tubular is in accordance with the plastic deformation law of the metal.Stress fluctuation is observed during the expansion process.The stress value is always between the yield strength and the tensile limit of the material,with the maximum value of 925.06 MPa.The patch tubular could patch the casing without breaking damage.The study conclusion could provide references for the field application of thin-walled patch tubular.
The use of low-alloy material thin-walled tubular for casing patch could obtain a larger diameter than the conventional expandable casing patch system.On the basis of the material selection requirements of the thin-walled patch tubular,the structure of the patch tubular has been designed.The mechanical analysis of the expansion patch process has been carried out using ANSYS software.The results show that the expansion and patch process of the thin-walled patch tubular is in accordance with the plastic deformation law of the metal.Stress fluctuation is observed during the expansion process.The stress value is always between the yield strength and the tensile limit of the material,with the maximum value of 925.06 MPa.The patch tubular could patch the casing without breaking damage.The study conclusion could provide references for the field application of thin-walled patch tubular.
引文
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[2]杨海波,冯德杰,滕照正,等.膨胀管套管补贴工艺及在胜利油田的应用[J].石油矿场机械,2007,36(5):75-79.
[3]樊奖平,张高峰,赵海军,等.实体膨胀管补贴技术在大港油田的应用[J].钻采工艺,2008,31(4):143-145.
[4]郑述培,艾文斌.套管质量事故处理技术[J].钻采工艺,2012,35(2):103-104.
[5]魏小房,王长宁,李前春,等.伸缩节在膨胀套管作业中的应用[J].石油钻采工艺,2010,32(3):112-115.
[6]唐明,唐成磊,宁学涛,等.实体膨胀管技术在油田开发中的应用[J].钻采工艺,2008,31(3):70-72.
[7]吴福源,魏增红,柳涛,等.实体膨胀管补贴修井技术在江苏油田的应用[J].石油钻探技术,2008,36(1):80-82.
[8]BLANE D A,CROSSLAND A.Design and development of a tubing repair solution using an expandable metal patch[R].SPE 130718-MS,2010.
[9]伊伟锴,刘金荣,吕芳蕾,等.热采水平井套管补贴加固工具研制与应用[J].石油矿场机械,2012,41(11):61-63.
[10]李益良,李涛,高向前,等.过套管补贴技术研究与应用[J].石油钻采工艺,2012,34(6):106-108.
[11]杨阳.可膨胀管用材料的设计与开发[D].成都:西南石油大学,2013.
[12]贾宗华,孟爱鲁,王维星,等.低合金膨胀管补贴工艺在文留油田的应用[J].石油地质与工程,2011,25(4):115-116.
[13]BRADDICK B O,JORDAN G D,BAKER S F,et al.Development and testing of an expandable casing patch system[R].SPE 91856-MS,2005.
[14]田启忠,温盛魁,伊伟锴,等.长井段套管破损补贴修复技术研究与应用[J].石油机械,2015,43(11):88-91.
[15]李涛.高温高压套损井膨胀管修复技术[J].石油勘探与开发,2015,42(3):374-378.
[16]张朝晖.ANSYS12.0结构分析工程应用实例解析[M].北京:机械工业出版社,2010:55-57.