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EP 0176180 B1 19881130 - HOLE OPENER

Title (en)

HOLE OPENER

Publication

EP 0176180 B1 19881130 (EN)

Application

EP 85305111 A 19850718

Priority

GB 8510911 A 19850430
US 63495684 A 19840727

Abstract (en)

[origin: EP0176180A1] A tool for enlarging well bores, comprising a tubular housing (1) a cutter (6) extending outwardly of the housing and having a cutting edge (6A, B, C) engaging a well bore wall, and a passageway (8) through the housing for delivery of pressurised fluid, the housing wall being apertured (9, 10) to direct fluid from the passageway in a direction lateral of the housing and at generally the same level on the housing as said cutting edge.

IPC 1-7

E21B 10/26; E21B 10/60

IPC 8 full level

E21B 10/26 (2006.01); E21B 10/60 (2006.01)

CPC (source: EP US)

E21B 10/26 (2013.01 - EP US); E21B 10/60 (2013.01 - EP)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0176180 A1 19860402; EP 0176180 B1 19881130; DE 3566564 D1 19890105; NO 169609 B 19920406; NO 169609 C 19920715; NO 852975 L 19860128

DOCDB simple family (application)

EP 85305111 A 19850718; DE 3566564 T 19850718; NO 852975 A 19850726