EP 0307266 B1 19920429 - METHOD AND APPARATUS FOR DRIVING SPECIALISED INTERVENTION EQUIPMENT INTO A BOREHOLE WITH AT LEAST ONE SECTION STRONGLY INCLINED RELATIVE TO THE VERTICAL
Title (en)
METHOD AND APPARATUS FOR DRIVING SPECIALISED INTERVENTION EQUIPMENT INTO A BOREHOLE WITH AT LEAST ONE SECTION STRONGLY INCLINED RELATIVE TO THE VERTICAL
Publication
Application
Priority
FR 8711749 A 19870819
Abstract (en)
[origin: EP0307266A1] The present invention relates to a method for operating specialised intervention equipment (10, 14, 16, 18) in a borehole (1) having at least one zone highly deviated from the vertical, said borehole comprising at least one first tubular conduit (3), along which said equipment is installed at a distance. It involves particularly the following steps: - a control member (21) is introduced into the first tubular conduit (3), - a cable (23) is fastened to one end of said member, - said control member (21) is lowered in said tubular conduit (3) by downward hydraulic pumping, - the travel of the cable in the tubular conduit is ensured from the surface, - the control member (21) is raised by pulling on the cable (21) from the surface, - said specialised equipment (10, 14, 16, 18) is operated selectively when the control member passes in line with said equipment while it is being lowered or raised. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 23/08 (2006.01); E21B 34/14 (2006.01); E21B 43/14 (2006.01)
CPC (source: EP US)
E21B 23/08 (2013.01 - EP US); E21B 34/14 (2013.01 - EP US); E21B 43/14 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB NL
DOCDB simple family (publication)
EP 0307266 A1 19890315; EP 0307266 B1 19920429; CA 1320125 C 19930713; DE 3870556 D1 19920604; DK 169879 B1 19950320; DK 463688 A 19890220; DK 463688 D0 19880818; ES 2032581 T3 19930216; FR 2621646 A1 19890414; FR 2621646 B1 19950825; IN 171838 B 19930123; NO 300391 B1 19970520; NO 883644 D0 19880816; NO 883644 L 19890220; US 4940094 A 19900710
DOCDB simple family (application)
EP 88402074 A 19880810; CA 575162 A 19880819; DE 3870556 T 19880810; DK 463688 A 19880818; ES 88402074 T 19880810; FR 8711749 A 19870819; IN 642MA1988 A 19880912; NO 883644 A 19880816; US 23407688 A 19880819