EP 0325541 B1 19921202 - APPARATUS AND PROCESS FOR ISOLATING PRODUCTIVE INTERVALS IN A WELL
Title (en)
APPARATUS AND PROCESS FOR ISOLATING PRODUCTIVE INTERVALS IN A WELL
Publication
Application
Priority
FR 8800595 A 19880120
Abstract (en)
[origin: US4913232A] The invention provides a method of separating at least two production zones in a well (P) using the following method and apparatus. The method is a method of making a sealing ring (18) in situ in an annular space (5) lying between a well (P) and casing (T) in the well, with the sealing ring being made adjacent to a production zone in the well, and with the method comprising the following stages: the annular space (5) to be occupied by the sealing ring (18) is delimited; and a sealing substance (11) is injected into the annular space. The apparatus comprises two confinement membranes (2-2) for sealing off the annular space (5); and separator membrane (8, 13) for separating the substance to be injected (11) from the fluids that normally exist between the well (P) and the casing (T), said separator membrane also serving to eject said fluids from said space (5). The invention is applicable to the drilling industry, and in particular to the oil industry, and the like.
IPC 1-7
IPC 8 full level
E21B 33/126 (2006.01); E21B 33/134 (2006.01)
CPC (source: EP US)
E21B 33/126 (2013.01 - EP US); E21B 33/134 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE ES GB IT NL SE
DOCDB simple family (publication)
EP 0325541 A1 19890726; EP 0325541 B1 19921202; CA 1337043 C 19950919; DE 325541 T1 19891228; DE 68903642 D1 19930114; DE 68903642 T2 19930408; ES 2010495 A4 19891116; ES 2010495 T3 19930516; FR 2626040 A1 19890721; FR 2626040 B1 19931022; NO 890241 D0 19890119; NO 890241 L 19890721; US 4913232 A 19900403
DOCDB simple family (application)
EP 89400163 A 19890119; CA 588483 A 19890118; DE 68903642 T 19890119; DE 89400163 T 19890119; ES 89400163 T 19890119; FR 8800595 A 19880120; NO 890241 A 19890119; US 29865989 A 19890118