港西出砂油藏套损机理及预防对策研究
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摘要
通过对港西油田出砂套损井基础资料的调研,系统梳理了出砂套损井的各项工程和开发数据,在阐述出砂套损的力学机理基础上,结合目前该油田的开发工艺及措施,对出砂套损预防技术对策进行了研究,提出了优先采用先期防砂措施,对于因工程和油藏无法实施先期防砂的井,应采取优化射孔参数、增加套管壁厚以及合理控制生产压差等系列配套措施,将有效指导疏松砂岩油藏套损预防工作的开展,降低此类油藏的套损率,延长油水井的寿命,提高该油田的开发效果。
Since 2010,many casing program optimization measures are implemented to prevent casing damage at Gangxi oilfield and effectively reduce the casing damage caused by hydration of mudstone. Through data research,sand production is found to be the major cause of casing damage in Gangxi oilfield wells after 2010. By well production data and mechanics mechanics investigation,many prevention measures are proposed.Firstly,pre-completion sand control should be conducted. For some oil wells difficult to conduct sand control measures,optimizing perforation parameters and adding casing wall thickness along with reasonably controlling the producing pressure drop should be conducted. With all above-mentioned measures,the well life and oilfield development results will be improved.
Since 2010,many casing program optimization measures are implemented to prevent casing damage at Gangxi oilfield and effectively reduce the casing damage caused by hydration of mudstone. Through data research,sand production is found to be the major cause of casing damage in Gangxi oilfield wells after 2010. By well production data and mechanics mechanics investigation,many prevention measures are proposed.Firstly,pre-completion sand control should be conducted. For some oil wells difficult to conduct sand control measures,optimizing perforation parameters and adding casing wall thickness along with reasonably controlling the producing pressure drop should be conducted. With all above-mentioned measures,the well life and oilfield development results will be improved.
引文
[1]刘建东,沈露禾.地层出砂及射孔对套管屈曲损坏的影响分析[J].石油机械,2010,38(5):30-31.
[2]杨启明,耿兆华.疏松砂岩地层出砂因素对套管损坏机理探讨[J].钻采工艺,2004,27(6):70-72.
[3]章根德,何鲜.油井套管变形损坏机理[M].北京:石油工业出版社,2005.
[4]赵洪山,管志月.出砂井套管损坏机理及预防措施研究[J].石油天然气学报(江汉石油学院学报),2005,27(5):823-825.
[5]赵阳,滕锦光.轴压圆柱钢薄壳稳定设计综述[J].工程力学,2003,20(6):116-126.
[6]李文魁.井下套管柱理论分析与损伤修复技术.[M].北京:石油工业出版社,2010.
[7]屠浩,李连进.壁厚误差对石油套管强度影响的有限元分析.[J].天津冶金,2004(1):17-20.
[2]杨启明,耿兆华.疏松砂岩地层出砂因素对套管损坏机理探讨[J].钻采工艺,2004,27(6):70-72.
[3]章根德,何鲜.油井套管变形损坏机理[M].北京:石油工业出版社,2005.
[4]赵洪山,管志月.出砂井套管损坏机理及预防措施研究[J].石油天然气学报(江汉石油学院学报),2005,27(5):823-825.
[5]赵阳,滕锦光.轴压圆柱钢薄壳稳定设计综述[J].工程力学,2003,20(6):116-126.
[6]李文魁.井下套管柱理论分析与损伤修复技术.[M].北京:石油工业出版社,2010.
[7]屠浩,李连进.壁厚误差对石油套管强度影响的有限元分析.[J].天津冶金,2004(1):17-20.