Boring or penetrating the earth – Cutter element laterally shiftable below ground – Plural cutter elements longitudinally relative movable into...
Patent
1987-10-19
1989-03-07
Neuder, William P.
Boring or penetrating the earth
Cutter element laterally shiftable below ground
Plural cutter elements longitudinally relative movable into...
175266, 175267, 166297, 166312, E21B 1032
Patent
active
048097934
ABSTRACT:
A downhole cutting tool, specifically adapted to function as an enhanced diameter clean-out tool, includes longitudinal bores which are opened to fluid flow when cutting members are moved to their extended positions. Upper and lower subassemblies are connected through an adapter which establishes an angular offset between an upper pair of extendible members and a lower pair of extendible members, which upper pair functions as a stabilizing structure to stabilize rotation of the tool and which lower pair functions as an enhanced diameter cutter.
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Bulletin Describing Bowen Internal Pressure Pipe Cutter (Believed to be pre-Oct. 19, 1986)-one page.
Kat Tool Inc. Brochure on Thru Tubing Tools (Clean-out, Cable Cutters, Tubing Cutters) (Believed to be pre-Oct. 19, 1986)-four pages.
SlimDrill, Inc. brochure (pre-Oct. 19, 1986)-reprinted from 36th (1984-85) Composite Catalog, pp. 6719-6722.
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