Method for removing fluid from a well bore

Details Method for removing fluid from a well bore Method for removing fluid from a well bore

2009-03-03

2010-06-29

Kramer, Devon C (Department: 3746)

Pumps

One fluid pumped by contact or entrainment with another

Jet

C417S076000, C417S077000, C417S151000, C417S904000

Reexamination Certificate

active

07744352

ABSTRACT:
A jet pump assembly and method for removing fluid from a well bore extending into a formation is disclosed. The jet pump assembly includes a jet pump interposed between a tubing string and a packer. The jet pump includes a body having an outer surface, a lower tubular end, an upper tubular end connected to a lower end of the tubing string, and a central axial bore intersecting the upper tubular end at a discharge end and extending partially through the pump body toward the lower tubular end. The pump body further has a plurality of radial inlet ports intersecting the central axial bore and a plurality of production ports extending from the lower tubular end to the upper tubular end in a non-intersecting relation to the injection ports. The central axial bore is shaped to provide a non-restricted flow path from the point the injection ports intersect the central axial bore to the discharge end of the central axial bore.

REFERENCES:
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patent: 5033545 (1991-07-01), Sudol
patent: 5080560 (1992-01-01), LeRoy et al.
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patent: 6685439 (2004-02-01), Harrell et al.
patent: 2002/0139525 (2002-10-01), Erick
patent: 2005/0121191 (2005-06-01), Lambert et al.

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