Method for governing large pore paths of oil deposit through oil-water well type transformation

The invention provides a method for governing large pore paths of an oil deposit through oil-water well type transformation. The method comprises the following steps: firstly, performing fine oil deposit geologic feature research, and performing classified description on the large pore paths; second...

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Hauptverfasser: Zhang Weiwei, Ren Qiao, Tan Heqing, Li Zhenquan, Bi Yiquan, Liu Shicheng, Tong Ying, Liu Zhihong, Jia Junshan, Huang Yingsong, Wang Zhanguo, Li Zhendong, Wang Duanping, Jia Yuanyuan, Li Wenhua
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides a method for governing large pore paths of an oil deposit through oil-water well type transformation. The method comprises the following steps: firstly, performing fine oil deposit geologic feature research, and performing classified description on the large pore paths; secondly, performing analysis of development effect influence factors, including pressure and perforation influence; thirdly, performing fine description of a geologic non-seepage interlayer; fourthly, designing a variable flow line well pattern adjustment scheme according to the fine description of the geologic non-seepage interlayer, performing layered water flooding recovery on continuous distribution areas of the non-seepage interlayer, and transforming the oil-water well type for the non-seepage interlayer; fifthly, performing index predication through a numerical modeling technology, and selecting an optimal plan. The method is high in practicability, can economically and effectively improve the recovery efficiency