EP 0291005 A3 19900207 - METHOD AND APPARATUS FOR LOGGING DEEP WELLS WHICH ARE CURVED OR DEVIATE IN A HORIZONTAL DIRECTION

Title (en)

METHOD AND APPARATUS FOR LOGGING DEEP WELLS WHICH ARE CURVED OR DEVIATE IN A HORIZONTAL DIRECTION

Publication

EP 0291005 A3 19900207 (DE)

Application

EP 88107472 A 19880510

Priority

DE 3716091 A 19870514

Abstract (en)

[origin: EP0291005A2] In tightly curved or horizontally running deep bores, a bore-measuring instrument (18) can only be moved into position by means of a rod. In order to make this possible, a sleeve (1) with a transition socket (3) is attached to the end of the rod, which transition socket (3) carries a guide shoe (2) at the end and accommodates the bore-measuring instrument (18). At its front end, the bore-measuring instrument (18) has an adaptor shoe (16) which can be inserted into a bearing bush (9) in the sleeve (1) and centres the bore-measuring instrument (18), the diameter of which is smaller than the diameter of the sleeve bore, in the sleeve bore. The bore-measuring instrument (18) therefore remains free of deformations to which the sleeve (1) is subject when passing through the deep bore. The sleeve (1) is provided with openings (7) through which the arms (26) of the bore-measuring instrument (18) can be extended. In order to align the arms (26) with the openings (7), orientation means (11, 15, 20, 22) are provided which orientate the adaptor shoe (16) in its angular position relative to the sleeve (1) upon insertion into the bearing bush (9) (Fig. 1). <IMAGE>

IPC 1-7

E21B 47/00; E21B 47/08; E21B 23/00; E21B 47/024; E21B 23/02

IPC 8 full level

E21B 7/04 (2006.01); E21B 23/14 (2006.01); E21B 47/024 (2006.01); E21B 47/08 (2012.01)

CPC (source: EP)

E21B 7/04 (2013.01); E21B 23/14 (2013.01); E21B 47/024 (2013.01); E21B 47/08 (2013.01)

Citation (search report)

[X] US 3718194 A 19730227 - HERING D, et al
[X] US 4399877 A 19830823 - JACKSON JOSHUA M [US], et al
[YD] EP 0049668 A2 19820414 - SCHLUMBERGER LTD [US], et al
[X] GB 2036136 A 19800625 - WESTBAY INSTR LTD
[X] US 4094360 A 19780613 - NELSON SHARON PARR
[X] US 4130162 A 19781219 - NELSON PAUL M
[AD] EP 0165154 A1 19851218 - INST FRANCAIS DU PETROLE [FR]
[A] FR 2522059 A2 19830826 - INST FRANCAIS DU PETROLE [FR]

Designated contracting state (EPC)

AT FR GB IT NL

DOCDB simple family (publication)

EP 0291005 A2 19881117; EP 0291005 A3 19900207; DE 3716091 A1 19881201; DE 3716091 C2 19890720; NO 882066 D0 19880511; NO 882066 L 19881115

DOCDB simple family (application)

EP 88107472 A 19880510; DE 3716091 A 19870514; NO 882066 A 19880511