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intermittent gas lifting apparatus for use in a gas and liquid producing well, and method for producing gas from a gas and liquid producing well
intermittent gas lifting apparatus for use in a gas and liquid producing well, and method for producing gas from a gas and liquid producing well
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机译:用于气液生产井的间歇式气举装置及由气液生产井生产气的方法
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摘要
A gas-lift apparatus and method for use in a well in which liquids accumulate in a liquid zone. The apparatus comprises a first string extending into the liquid zone and having upper and lower ends; a second string surrounding the first string and defining an annulus therewith, the second string extending a distance from the first string lower end such that the annulus has upper and lower ends, the annulus being closed at its upper and lower ends and defining a chamber, the chamber being in fluid communication with the inside of the first string; a check valve controlling the flow of liquid into from the wellbore into the lower end of said annulus; a gas valve allowing the flow of gas from the first string into the upper end of the chamber; and a valve for controlling the flow of gas into the upper end of said inner string.
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