Method suitable for judging hydrops of oil-gas-water co-production horizontal well
The invention discloses a method suitable for judging hydrops of an oil-gas-water co-production horizontal well. The method comprises the steps that gas well parameters are obtained, corresponding parameters are determined, the liquid-carrying critical gas flow rate is obtained through calculation,...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method suitable for judging hydrops of an oil-gas-water co-production horizontal well. The method comprises the steps that gas well parameters are obtained, corresponding parameters are determined, the liquid-carrying critical gas flow rate is obtained through calculation, then the liquid-carrying critical flow rate of a gas well is determined, finally the obtained liquid-carrying critical flow rate of the gas well is compared with the daily gas production rate of the gas well, and if the daily gas production rate is larger than the liquid-carrying critical flow rateof the gas well, the gas well can normally carry liquid without liquid accumulation; if the daily gas production rate is smaller than the critical liquid-carrying flow of the gas well, it is indicatedthat liquid carrying of the gas well is difficult, accumulated liquid possibly exists at the bottom of the well, and foam drainage or other drainage gas recovery measures should be involved in time.An algorithm is based on th |
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