Downhole cutting tool and method

Details Downhole cutting tool and method Downhole cutting tool and method

2006-11-28

2006-11-28

Neuder, William (Department: 3672)

Wells

Processes

Assembling well part

C166S207000

Reexamination Certificate

active

07140444

ABSTRACT:
There is disclosed a method of forming a tubing lined borehole, the method comprising the steps of forming a borehole; enlarging part of the borehole by increasing the diameter thereof; and locating bore-lining tubing in the borehole with at least part of the tubing located in the enlarged part of the borehole, and a corresponding a tubing lined borehole.There is also disclosed a downhole cutting tool comprising a tool body; and at least one cutting element mounted for radial movement with respect to the tool body between a retracted position and a cutting position, in the cutting position the cutting element describing a cutting diameter and an axially extending annular space inwardly of the cutting element, and a corresponding method.

REFERENCES:
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patent: 02/25056 (2002-03-01), None
patent: 02/066783 (2002-08-01), None
patent: WO 03/078790 (2003-09-01), None
Great Britain Search Report, dated Aug. 11, 2003 for GB 0230189.3.
U.K. Search Report, Application No. GB 0329368.5, dated Jan. 23, 2004.

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