| CO2增能压裂在低渗透储层的应用 |
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| 引用本文： | 张朔,谢军,赵勖,孙蒙,陈彦楠,王志民.CO2增能压裂在低渗透储层的应用[J].石油化工应用,2021(1):63-65. |
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| 作者姓名： | 张朔 谢军 赵勖 孙蒙 陈彦楠 王志民 |
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| 作者单位： | 中国石油集团渤海钻探工程有限公司井下技术服务分公司 |
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| 基金项目： | 中石油渤海钻探工程有限公司项目“CO2蓄能及干法压裂工艺技术研究”,项目编号:2020ZD19Y-01。 |
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| 摘 要： | 为了增加储层压裂改造效果,采用CO2前置增能压裂施工工艺,CO2前置段塞可以有效补充地层能量,降低储层损害并增加返排效率。从现场试验可以看出,返排率均达到88%以上,原油增产最高达到68 t,投入产出比在1:2.5以上,可以有效提高储层改造效率,取得良好的经济效益。
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| 关 键 词： | CO2增能 压裂施工 返排效率 地层能量 产量 |
Application of CO2 enhanced fracturing in low permeability reservoir |
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| ZHANG Shuo,XIE Jun,ZHAO Xu,SUN Meng,CHEN Yannan,WANG Zhimin.Application of CO2 enhanced fracturing in low permeability reservoir[J].Petrochemical Industry Application,2021(1):63-65. |
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| Authors: | ZHANG Shuo XIE Jun ZHAO Xu SUN Meng CHEN Yannan WANG Zhimin |
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| Affiliation: | (Downhole Technology Service Company,CNPC Bohai Drilling Engineering Company Limited,Tianjin 300283,China) |
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| Abstract: | In order to increase the effect of reservoir fracturing,the CO2 pre slug can effectively supplement the formation energy,reduce the reservoir damage and increase the flowback efficiency.From the field experiment,it can be seen that the flowback rate is more than 88%,the oil production is up to 68 t,and the input-output ratio is more than 1:2.5,which can effectively improve the efficiency of reservoir transformation and obtain good economic benefits. |
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| Keywords: | CO2 energy enhancement fracturing operation flowback efficiency formation energy production |
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