Gas operated pump for hydrocarbon wells

Wells – Processes – Producing the well

Reexamination Certificate

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Details

C166S050000, C166S068000, C166S053000, C166S250150

Reexamination Certificate

active

11302482

ABSTRACT:
The present invention generally relates to an apparatus and method for improving production from a wellbore. In one aspect, a downhole pump for use in a wellbore is provided. The downhole pump includes two or more chambers for the accumulation of formation fluids and a valve assembly for filling and venting gas to and from the two or more chambers. The downhole pump further includes a fluid passageway for connecting the two or more chambers to a production tube. In another aspect, a downhole pump including a chamber for the accumulation of formation fluids is provided. In another aspect, a method for improving production in a wellbore is provided. In yet another aspect, a method for improving production in a steam assisted gravity drainage operation is provided. Additionally, a pump system for use in a wellbore is provided.

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patent: 2002/0040785 (2002-04-01), Amani
patent: WO 98/37306 (1998-08-01), None

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