Casing cutter

Details Casing cutter Casing cutter

2006-06-20

2006-06-20

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

C166S055700, C175S265000

Reexamination Certificate

active

07063155

ABSTRACT:
Casing cutter for severing multiple tubulars in a well bore has a pair of cutter blades pivotally mounted on a support body. The blades are pivotally mounted for gradual movement outside of the support body when downward force is applied to proximate ends of the cutter blades. The support body is rotated inside the innermost of the multiple tubulars, while the cutter blades sever the tubulars of progressively increasing diameter.

REFERENCES:
patent: 4938291 (1990-07-01), Lynde et al.
patent: 5735359 (1998-04-01), Lee et al.
patent: 5791409 (1998-08-01), Flanders
patent: 5899268 (1999-05-01), Lynde et al.
patent: 6357528 (2002-03-01), Davis et al.
patent: 2352747 (2001-02-01), None

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