Research and application of multi-hydrogen acidizing technology of low-permeability reservoirs for increasing water injection 机翻标题: 暂无翻译,请尝试点击翻译按钮。

会议集名/来源
IOP Conference Series: Earth and Environmental Science
出版年
2000
会议日期
2017-12-22 - 2017-12-25
作者
Ning, Mengmeng 1;Che, Hang 1;Kong, Weizhong 1;Wang, Peng 1;Liu, Bingxiao 1;Xu, Zhengdong 1;Wang, Xiaochao 1;Long, Changjun 1;Zhang, Bin 1;Wu, Youmei 1 1 Engineering Technology Research Institute of Huabei Oilfield Company, China cyy_ningmm@petrochina.com.cn
摘要
The physical characteristics of Xiliu 10 Block reservoir is poor, it has strong reservoir inhomogeneity between layers and high kaolinite content of the reservoir, the scaling trend of fluid is serious, causing high block injection well pressure and difficulty in achieving injection requirements. In the past acidizing process, the reaction speed with mineral is fast, the effective distance is shorter and It is also easier to lead to secondary sedimentation in conventional mud acid system. On this point, we raised multi-hydrogen acid technology, multi-hydrogen acid release hydrogen ions by multistage ionization which could react with pore blockage, fillings and skeletal effects with less secondary pollution. Multi-hydrogen acid system has advantages as moderate speed, deep penetration, clay low corrosion rate, wet water and restrains precipitation, etc. It can reach the goal of plug removal in deep stratum. The field application result shows that multi-hydrogen acid plug removal method has good effects on application in low permeability reservoir in Block Xiliu 10.
机翻摘要
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关键词
Low permeability reservoirs (major);Acidization;Hydrogen;Injection (oil wells);Kaolinite;Oil well flooding;Petroleum reservoir engineering;Reservoirs (water);Water injection
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