Fire flooding gas injection well ball throwing and profile control technology

The invention provides a fire flooding gas injection well ball throwing and profile control technology. The fire flooding gas injection well ball throwing and profile control technology includes the steps that a hollow blocking ball made of a high-polymer material is thrown into a gas injection well...

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Bibliographische Detailangaben
Hauptverfasser: WANG LEI, XU DAN, LUO ENYONG, WU FEI, GUO HONGJUN, XIANG ZHENG, ZHANG ZHIZHONG, KUANG XUGUANG, SHI XUDONG, WANG YAN, DONG PENGYI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a fire flooding gas injection well ball throwing and profile control technology. The fire flooding gas injection well ball throwing and profile control technology includes the steps that a hollow blocking ball made of a high-polymer material is thrown into a gas injection well, and gas is injected; and the gas pushes the blocking ball to move towards a blast hole which is located on the well wall of the gas injection well and communicates with a high-permeability oil layer, and the blast hole is blocked by the blocking ball. By means of the fire flooding gas injection well ball throwing and profile control technology, the characteristic that the gas absorbing performance of the high-permeability oil layer is good, and the injected gas preferably enters the high-permeability oil layer is utilized, the blocking ball is thrown into the gas injection well, gas is injected, the gas pushes the blocking ball to move towards the high-permeability oil layer in a shaft, when the blocking ball mov