EP 0377373 B1 19930804 - CONTROLLED DIRECTIONAL DRILLING ASSEMBLY WITH A VARIABLE-ANGLE ELBOW ELEMENT, AND ITS USE
Title (en)
CONTROLLED DIRECTIONAL DRILLING ASSEMBLY WITH A VARIABLE-ANGLE ELBOW ELEMENT, AND ITS USE
Publication
Application
Priority
FR 8817598 A 19881230
Abstract (en)
[origin: EP0377373A1] The present invention relates to a controlled directional drilling assembly. This assembly comprises a bottom motor (36), a drilling tool (35), at least one stabiliser (38) and a remote-controlled variable-angle elbow element (37). <IMAGE>
IPC 1-7
IPC 8 full level
E21B 7/06 (2006.01); E21B 7/08 (2006.01); E21B 17/10 (2006.01)
CPC (source: EP US)
E21B 7/067 (2013.01 - EP US); E21B 7/068 (2013.01 - EP US); E21B 17/1014 (2013.01 - EP US)
Designated contracting state (EPC)
GB IT NL
DOCDB simple family (publication)
EP 0377373 A1 19900711; EP 0377373 B1 19930804; CA 2006927 A1 19900630; CA 2006927 C 19991005; FR 2641316 A1 19900706; FR 2641316 B1 19950908; NO 301783 B1 19971208; NO 895303 D0 19891228; NO 895303 L 19900702; US 5273123 A 19931228
DOCDB simple family (application)
EP 89403565 A 19891219; CA 2006927 A 19891229; FR 8817598 A 19881230; NO 895303 A 19891228; US 45928589 A 19891229