分段改造完井技术在超深超低渗透油藏中的应用
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摘要
针对塔中超深特低孔超低渗油藏,单段改造产能低等特点,采用了悬挂回插封隔器+裸眼封隔器+投球滑套的不动管柱分段改造完井工艺。从裂缝分段优化、压裂管柱、压裂液体系优选,以及施工规模等方面阐述了该工艺技术的现场应用情况。现场应用表明,水平井可分7段施工,滑套开启显示明显,与单段改造相比,极大地提高了产能。
Single segment transformation has the characteristics of low productivity in super-deep-low permeability reservoir. Immobile string piecewise transformation completion is introduced to solve this problem. Downhole tools include suspension packers,open hole packer,pitch-slip-sets,and others. This paper introduces from aspects of subsection optimization of fractures,fracturing string,selection of fracturing fluid system,and conduction scale,etc. It shows that slip-sets open significantly in seven segments construction of a horizontal well in field application. Compared with single segment transformation,the new technology inproves productivity greatly.
Single segment transformation has the characteristics of low productivity in super-deep-low permeability reservoir. Immobile string piecewise transformation completion is introduced to solve this problem. Downhole tools include suspension packers,open hole packer,pitch-slip-sets,and others. This paper introduces from aspects of subsection optimization of fractures,fracturing string,selection of fracturing fluid system,and conduction scale,etc. It shows that slip-sets open significantly in seven segments construction of a horizontal well in field application. Compared with single segment transformation,the new technology inproves productivity greatly.
引文
[1]刁素,朱礼平,黄禹忠,等.不动管柱分层压裂技术在低渗气田中的应[J].天然气技术与经济,2011,5(2):77-79.
[2]张世甫.滑套使用中若干问题的分析探讨[J].钻采工艺,2002,25(1):81-85.
[3]李永革.基于ANSYS-CFD的滑套球座冲蚀分析[J].石油矿场机械,2011,40(9):42-44.
[4]岳欠杯,刘巨保,胡宝华.深井分层压裂管柱受力计算及结果分析[J].石油矿场机械,2011,40(8):23-28.
[5]武鹏,邓薇,徐刚,等.塔河油田碳酸盐岩油藏超深水平井分段完井优化技术[J].化工管理,2013,(2):10-11.
[6]谢宇,袁孝春,高尊升,等.塔里木油田碳酸盐岩超深井水平井分段改造技术[J].油气井测试,2009,18(3):61-62.
[7]肖晖,李洁,曾俊.投球压裂堵塞球运动方程研究[J].西南石油大学学报(自然科学版),2011,33(5):162-167.
[2]张世甫.滑套使用中若干问题的分析探讨[J].钻采工艺,2002,25(1):81-85.
[3]李永革.基于ANSYS-CFD的滑套球座冲蚀分析[J].石油矿场机械,2011,40(9):42-44.
[4]岳欠杯,刘巨保,胡宝华.深井分层压裂管柱受力计算及结果分析[J].石油矿场机械,2011,40(8):23-28.
[5]武鹏,邓薇,徐刚,等.塔河油田碳酸盐岩油藏超深水平井分段完井优化技术[J].化工管理,2013,(2):10-11.
[6]谢宇,袁孝春,高尊升,等.塔里木油田碳酸盐岩超深井水平井分段改造技术[J].油气井测试,2009,18(3):61-62.
[7]肖晖,李洁,曾俊.投球压裂堵塞球运动方程研究[J].西南石油大学学报(自然科学版),2011,33(5):162-167.