The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 13, 2005

Filed:

Jan. 22, 2003
Applicants:

William F. Howard, West Columbia, TX (US);

William C. Lane, Woodlands, TX (US);

Inventors:

William F. Howard, West Columbia, TX (US);

William C. Lane, Woodlands, TX (US);

Assignee:

Weatherford/Lamb, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B043/16 ;
U.S. Cl.
CPC ...
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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