Downhole draw down pump and method

Details Downhole draw down pump and method Downhole draw down pump and method

2007-05-29

2007-05-29

Gay, Jennifer H (Department: 3672)

Wells

Processes

Producing the well

C166S105000, C175S213000, C417S172000

Reexamination Certificate

active

11447767

ABSTRACT:
An apparatus and method for drawing down a fluid level in a wellbore which has a first tubular disposed within the wellbore so that a wellbore annulus is formed. The apparatus further includes an annular nozzle operatively attached to the first tubular, and wherein the annular nozzle comprises: an annular adapter; and, a suction tube that extends from the annular member into an inner portion of the first tubular. The apparatus further comprises a second tubular concentrically disposed within the first tubular so that a micro annulus is formed therein. The apparatus may further contain a jetting device for delivering an injected medium injected from the micro annulus into the wellbore annulus, and a stabilizer that stabilizes the second tubular within the first tubular.

REFERENCES:
patent: 47793 (1865-05-01), Brear
patent: 1693101 (1928-11-01), Worthington
patent: 2290141 (1942-07-01), Burt
patent: 2291911 (1942-08-01), McMahon
patent: 2909127 (1959-10-01), Bradaska
patent: 4074799 (1978-02-01), Hishida et al.
patent: 4275926 (1981-06-01), Hodges
patent: 4310288 (1982-01-01), Erickson
patent: 4505646 (1985-03-01), Long et al.
patent: 4536035 (1985-08-01), Huffman et al.
patent: 4605069 (1986-08-01), McClaflin et al.
patent: 4630691 (1986-12-01), Hooper
patent: 5033545 (1991-07-01), Sudol
patent: 5435628 (1995-07-01), Montgomery et al.
patent: 6209641 (2001-04-01), Stevenson
patent: 2004/0104023 (2004-06-01), Stark et al.

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