| 摘要: |
| 为保证压裂作业的高返排率,通常要求压裂液在返出地面时完全破胶。但统计分析中原油田3口不完全破胶返排井的压后生产数据发现,压后单井日产液量和产油量反而高于同区块的平均水平。分析取作业前15天的稳定产液/油量的平均值作为压前产量,压完开井10日后15天的平均值作为压后数据,并校正到每立方米支撑剂增产量。作者认为,以往对压裂液返排中的粘度控制认识存在误区,建议加强实验研究,优化压裂液的返排粘度,提高裂缝净化效果。 |
| 关键词: 破胶 返胶 压裂液 产量 |
| DOI： |
| 分类号:TE357 |
| 基金项目:国家高科技研究发展计划(863)项目(2006AA06Z226)“深层低渗透油气藏压裂改造关键技术”部分成果 |
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| Production Analysis on the Wells with Re-crosslinking of Fracturing Fluid Flowbacked |
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Gong Jizhong1, Zhuang Zhaofeng2
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1.Petroleum University of Southwest China,Chengdu 610500,Sichuan;2.Zhongyuan Petroleum Exploration Bureau of Sinopec,Puyang 457164,Henan
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| Abstract: |
| The viscosity of fracturing fluid should be very low for flowback,and it has been taken as a rule for several decades.It is interesting to find that,for some wells in the Zhongyuan Oilfield of SINOPEC,,the wells flowbacked with very high viscocity,or recrosslinked,have superior production response.the case stuies were analysed,and something beneath the viscosity should be researched. |
| Key words: re-crosslinking fracturing fluid production |
