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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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 |
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