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1. WO2002021162 - A DEVICE FOR MEASURING AN ELECTRICAL PARAMETER THROUGH ELECTRICALLY-CONDUCTIVE CASING

Publication Number WO/2002/021162
Publication Date 14.03.2002
International Application No. PCT/EP2001/010260
International Filing Date 05.09.2001
Chapter 2 Demand Filed 04.04.2002
IPC
G01V 3/20 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
18specially adapted for well-logging
20operating with propagation of electric current
CPC
G01V 3/20
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
18specially adapted for well-logging
20operating with propagation of electric current
Applicants
  • SCHLUMBERGER TECHNOLOGY B.V. (STBV) [NL]/[NL] (AE, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BY, CF, CH, CI, CO, CR, CU, CY, DE, DK, DM, EE, ES, FI, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IS, IT, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SE, SG, SI, SK, SL, SN, SZ, TG, TJ, TM, TZ, UA, UG, UZ, YU, ZA, ZW)
  • SERVICES PETROLIERS SCHLUMBERGER (SPS) [FR]/[FR] (FR)
  • SCHLUMBERGER CANADA LIMITED (SCL) [CA]/[CA] (CA)
  • SCHLUMBERGER HOLDINGS LIMITED (SHL) [--]/[--] (GB, JP, NL)
  • SCHLUMBERGER PETROLEUM RESEARCH & DEVELOPMENT N.V. (PRAD NV) [NL]/[NL] (CG, CM, CZ, GA, IN, LT, MA, NE, TD, VN)
  • SCHLUMBERGER OVERASES S.A. (SOSA) [PA]/[PA] (CN)
  • SCHLUMBERGER OILFIELD ASSISTANCE LIMITED (SOAL) [--]/[--] (SD, TR)
  • SCHLUMBERGER SURENCO S.A. (SURENCO) [PA]/[PA] (BR)
  • SCHLUMBERGER SERVICES LIMITED (SSL) [--]/[--] (TT)
  • DEMIA, Laurent [FR]/[FR] (UsOnly)
  • RENOUX, Nicolas [FR]/[FR] (UsOnly)
  • SALAMITOU, Philippe [FR]/[FR] (UsOnly)
Inventors
  • DEMIA, Laurent
  • RENOUX, Nicolas
  • SALAMITOU, Philippe
Agents
  • HYDEN, Martin
Priority Data
0001161911.09.2000FR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A DEVICE FOR MEASURING AN ELECTRICAL PARAMETER THROUGH ELECTRICALLY-CONDUCTIVE CASING
(FR) DISPOSITIF PERMETTANT DE MESURER UN PARAMETRE ELECTRIQUE VIA UN TUBAGE ELECTRIQUEMENT CONDUCTEUR
Abstract
(EN)
The invention relates to a device for measuring an electrical parameter through electrically-conductive casing, said device including a current injection electrode (3) and a measurement electrode (7) on one side of the wall of the casing (1). According to the invention, the injection electrode (3) is associated via a first magnetic coupler (4) with a current source (2) and the measurement electrode (7) is associated via a second magnetic coupler (6) with a measurement device (5) situated on the other side of the wall.
(FR)
L'invention concerne un dispositif permettant de mesurer un paramètre électrique via un tubage électriquement conducteur, lequel comprend une électrode d'injection de courant (3) et une électrode de mesure (7) situées sur un côté de la paroi du tubage (1). Selon l'invention, l'électrode d'injection (3) est associée, via un premier coupleur magnétique (4), à une source de courant (2) située sur l'autre côté de la paroi du tubage (1), et l'électrode de mesure (7) est associée, via un second coupleur magnétique (6), à un dispositif de mesure (5) situé sur l'autre côté de la paroi.
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