Retrieval tool with slips for retrieving bottom hole...

Details Retrieval tool with slips for retrieving bottom hole... Retrieval tool with slips for retrieving bottom hole...

2008-05-22

2010-12-07

Gay, Jennifer H (Department: 3676)

Boring or penetrating the earth

With tool drive prime mover or above-ground mechanical...

With installing casing

C166S098000, C175S257000, C175S309000

Reexamination Certificate

active

07845431

ABSTRACT:
A casing-while-drilling bottom hole assembly is releasably connected with a casing string. A retrieval tool is run into the casing string and latched to the bottom hole assembly. Slips are mounted to the retrieval tool, the slips being retracted during running in. Differential pressure moves the retrieval tool and bottom hole assembly upward, and the slips engage the casing string to prevent downward movement if the pressure differential drops too low. A flow passage extends through the retrieval tool and the bottom hole assembly. A check valve in the retrieval tool allows downward flow through the flow passage but prevents upward flow, so that fluid may be circulated through the retrieval tool and bottom hole assembly while suspended with the slips.

REFERENCES:
patent: 2997119 (1961-08-01), Goodwin
patent: 3321017 (1967-05-01), Young
patent: 4044826 (1977-08-01), Crowe
patent: 4518037 (1985-05-01), Youngblood et al.
patent: 4651837 (1987-03-01), Mayfield
patent: 5472057 (1995-12-01), Winfree
patent: 5697449 (1997-12-01), Hennig et al.
patent: 7044241 (2006-05-01), Angman
patent: 7475742 (2009-01-01), Angman et al.
patent: 7503397 (2009-03-01), Giroux et al.
patent: 7604057 (2009-10-01), Eriksen et al.
patent: 7624820 (2009-12-01), Angman et al.
patent: 7637330 (2009-12-01), Angman et al.
patent: 7708077 (2010-05-01), Eriksen et al.
patent: 2007/0051538 (2007-03-01), Angman et al.
patent: 2007/0068677 (2007-03-01), Angman et al.
patent: 2009/0107675 (2009-04-01), Eriksen et al.
patent: 2009/0288821 (2009-11-01), Eriksen et al.
patent: 2009/0288839 (2009-11-01), Eriksen et al.
patent: 2009/0288840 (2009-11-01), Eriksen et al.
patent: 2009/0288841 (2009-11-01), Eriksen et al.
patent: 2009/0288886 (2009-11-01), Eriksen et al.
patent: WO 2007014465 (2007-02-01), None
patent: WO 2007/140612 (2007-12-01), None
International Search Report, Application No. PCT/US2009/044923, dated Oct. 29, 2009.
Yakov A. Gelfgat, Mikhail Y. Gelfgat and Yuri S. Lopatin, authors.
“Advanced Drilling Solutions Lessons from the FSU”, vol. II, The Definitive Book on Russian Drilling Technology Table of Contents, 2 pgs.,—pp. 390-394—1 additional pg.
D.J. Bode, R.B. Noffke and H.V. Nickens, authors.
“Well-Control Methods and Practices in Small-Diameter Wellbores”, JPT Nov. 1991, pp. 1380-1386.

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