压裂用可溶桥塞关键技术分析
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摘要
对比分析了国内外可溶桥塞的性能指标及优缺点。详细阐述了国产化可溶桥塞的关键技术,包含可溶卡瓦表面处理、卡瓦破碎力设计、可溶胶筒技术以及下接头设计。按照页岩气压裂施工情况,首次提出了可溶桥塞耐压试验时的"耐压时效"概念。耐压时效指桥塞入井至压裂的时间间隔。按照现有页岩气施工模式,认为耐压时效24 h可兼顾现场施工和压后溶解的需要。
The performance indexes of various soluble bridge plugs at home and abroad were compared and analyzed, and the key technologies, including the surface treatment of slips, the opening force design of slips, the solenoid cylinder technology and the design of lower joints were introduced in details. For the domestic dissolvable bridge plug, the concept of "pressure resistance duration" was proposed, which refers to the time interval between the bridge plug's access into the well and fracturing. According to the existing shale gas construction mode, the pressure resistance duration for 24 h can meet the requirements from both on-site construction and post-pressure dissolution.
The performance indexes of various soluble bridge plugs at home and abroad were compared and analyzed, and the key technologies, including the surface treatment of slips, the opening force design of slips, the solenoid cylinder technology and the design of lower joints were introduced in details. For the domestic dissolvable bridge plug, the concept of "pressure resistance duration" was proposed, which refers to the time interval between the bridge plug's access into the well and fracturing. According to the existing shale gas construction mode, the pressure resistance duration for 24 h can meet the requirements from both on-site construction and post-pressure dissolution.
引文
[1] 杨小城,李俊,邹刚.可溶桥塞试验研究及现场应用[J].石油机械,2018,46(7):94-97.
[2] 刘辉,邓千里,尹强,等.可溶桥塞技术在页岩气井套管测漏中的应用[J].石油机械,2018,46(4):98-100.
[3] 高春华.大通径可溶球可溶性评价及长岭断陷水平井中的应用[J].地质装备,2018,19(4):46-48.
[4] 张磊.高强度可溶金属基复合材料制备与性能研究[J].石油和化工设备,2017,20(3):14-16.
[5] 王海东,唐凯,欧跃强,等.大通径桥塞与可溶球技术在页岩气X井的应用[J].石油矿场机械,2016,45(4):78-81.
[6] 吕芳蕾.国内外压裂用新型可溶复合材料井下工具[J].石化技术,2015,22(7):135-138.
[7] 陈振宇.基于石油压裂开采的可溶球座技术研究[D].沈阳:沈阳航空航天大学,2018.
[8] 刘恩洋,于思荣,纪志康,等.漂珠/镁合金复合材料可溶压裂球的制备及组织性能研究[J].稀有金属,2018,28(6):1-8.
[9] 杨军,尹俊禄,张文,等.压裂分隔工具用可溶镁合金Mg-7Al-1Zn-1Ni-1Cu的制备与性能[J].有色金属工程,2018,8(3):47-50.
[10] 尚晓峰,王丹鹏,林忠超.用于石油井下工具崩解压裂球的可溶铝基合金的性能分析[J].西安石油大学学报(自然科学版),2018,33(4):88-93.
[2] 刘辉,邓千里,尹强,等.可溶桥塞技术在页岩气井套管测漏中的应用[J].石油机械,2018,46(4):98-100.
[3] 高春华.大通径可溶球可溶性评价及长岭断陷水平井中的应用[J].地质装备,2018,19(4):46-48.
[4] 张磊.高强度可溶金属基复合材料制备与性能研究[J].石油和化工设备,2017,20(3):14-16.
[5] 王海东,唐凯,欧跃强,等.大通径桥塞与可溶球技术在页岩气X井的应用[J].石油矿场机械,2016,45(4):78-81.
[6] 吕芳蕾.国内外压裂用新型可溶复合材料井下工具[J].石化技术,2015,22(7):135-138.
[7] 陈振宇.基于石油压裂开采的可溶球座技术研究[D].沈阳:沈阳航空航天大学,2018.
[8] 刘恩洋,于思荣,纪志康,等.漂珠/镁合金复合材料可溶压裂球的制备及组织性能研究[J].稀有金属,2018,28(6):1-8.
[9] 杨军,尹俊禄,张文,等.压裂分隔工具用可溶镁合金Mg-7Al-1Zn-1Ni-1Cu的制备与性能[J].有色金属工程,2018,8(3):47-50.
[10] 尚晓峰,王丹鹏,林忠超.用于石油井下工具崩解压裂球的可溶铝基合金的性能分析[J].西安石油大学学报(自然科学版),2018,33(4):88-93.