EG13640A - Method and apparatus for measuring the resistivity of fluids in a borehole - Google Patents

Method and apparatus for measuring the resistivity of fluids in a borehole

Info

Publication number
EG13640A
EG13640A EG777/79A EG77779A EG13640A EG 13640 A EG13640 A EG 13640A EG 777/79 A EG777/79 A EG 777/79A EG 77779 A EG77779 A EG 77779A EG 13640 A EG13640 A EG 13640A
Authority
EG
Egypt
Prior art keywords
borehole
fluids
electrodes
resistivity
pair
Prior art date
Application number
EG777/79A
Original Assignee
Schlumberger Overseas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlumberger Overseas filed Critical Schlumberger Overseas
Application granted granted Critical
Publication of EG13640A publication Critical patent/EG13640A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/22—Measuring resistance of fluids
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/005—Testing the nature of borehole walls or the formation by using drilling mud or cutting data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/20—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Fluid Mechanics (AREA)
  • Remote Sensing (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Soft Magnetic Materials (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1. Method for measuring the resistivity of fluids in a borehole by means of a sonde body adapted to be moved in the borehole and having a first pair of annular electrodes (34, 37) which are supported on its lateral surface on each side of a second pair of annular electrodes (35, 36), comprising the steps of passing an electrical current (i) around said sonde body through the fluids in the borehole between the electrodes of one of said pairs, and detecting a potential difference (u) through the fluids of the borehole between the electrodes of the other one of said pairs, characterized by maintaining said electrodes (34, 35, 36, 37) at a lateral distance (d) from the borehole wall which is at least equal to the longitudinal spacing (b) between the electrodes (34, 37) of said first pair to derive a signal representative of the resistivity of the borehole fluids whatever is the position of the body in the borehole.
EG777/79A 1978-12-27 1979-12-26 Method and apparatus for measuring the resistivity of fluids in a borehole EG13640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7836415A FR2445532A1 (en) 1978-12-27 1978-12-27 METHOD AND DEVICE FOR MEASURING THE RESISTIVITY OF FLUIDS IN A BORING

Publications (1)

Publication Number Publication Date
EG13640A true EG13640A (en) 1982-03-31

Family

ID=9216559

Family Applications (1)

Application Number Title Priority Date Filing Date
EG777/79A EG13640A (en) 1978-12-27 1979-12-26 Method and apparatus for measuring the resistivity of fluids in a borehole

Country Status (13)

Country Link
EP (1) EP0013224B1 (en)
JP (1) JPS5590853A (en)
AT (1) ATE1760T1 (en)
AU (1) AU529599B2 (en)
BR (1) BR7908388A (en)
CA (1) CA1139369A (en)
DE (1) DE2963994D1 (en)
EG (1) EG13640A (en)
ES (1) ES8102360A1 (en)
FR (1) FR2445532A1 (en)
MX (1) MX147124A (en)
MY (1) MY8500056A (en)
NO (1) NO153782C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738812A (en) * 1982-11-12 1988-04-19 Teleco Oilfield Services Inc. Method of forming an electrode structure
SE8301264D0 (en) * 1983-03-08 1983-03-08 Guldstroem Lars SET AND DEVICE TO INDICATE EXISTENCE OF LEADING MATERIALS IN A MEDIUM
NL8700688A (en) * 1987-03-24 1988-10-17 Yokogawa Electrofact Bv METHOD AND APPARATUS FOR MEASURING THE CONDUCTIVITY OF A LIQUID WITH CONTROL OF THE TRANSITION RESISTANCE BETWEEN AN ELECTRODE AND THE LIQUID.
NO310894B1 (en) * 1994-10-27 2001-09-10 Schlumberger Technology Bv Measurement of sludge resistivity in a borehole comprising a probe with a bottom electrode to transmit a current to and from the bottom electrode in a direction approximately parallel to the probe length axis
US5926024A (en) * 1995-01-04 1999-07-20 Atlantic Richfield Company System and method for measuring fluid properties by forming a coaxial transmission line in a cased well
CA2146070C (en) * 1995-03-15 2002-01-29 Kees Jonckers Improved reactor for the synthesis of urea
FR2740170B1 (en) * 1995-10-20 1998-01-02 Schlumberger Services Petrol METHODS AND DEVICES FOR MEASURING THE RESISTIVITY OF SLUDGE IN A HYDROCARBON WELL
JP3861193B2 (en) * 2000-01-26 2006-12-20 株式会社鷺宮製作所 Electrical conductivity sensor
US6801039B2 (en) 2002-05-09 2004-10-05 Baker Hughes Incorporated Apparatus and method for measuring mud resistivity using a defocused electrode system
US7095233B1 (en) * 2005-07-20 2006-08-22 Schlumberger Technology Corporation System, apparatus, and method of conducting borehole resistivity measurements
EP2182392B1 (en) * 2008-10-31 2015-07-29 Services Pétroliers Schlumberger A tool for imaging a downhole environment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056749B (en) * 1955-09-27 1959-05-06 Schlumberger Overseas Device for determining the angle of incidence and azimuth of geological layers penetrated by a borehole
US3115602A (en) * 1960-02-01 1963-12-24 Continental Oil Co Continuous mud resistivity measuring device with electricity conductive current confining means
US3134941A (en) * 1961-05-19 1964-05-26 Dresser Ind Borehole diameter and lateral depth of fluid invasion indicator
GB1472415A (en) * 1973-10-09 1977-05-04 Westinghouse Electric Corp Sensor cell
US3991623A (en) * 1973-10-09 1976-11-16 Westinghouse Electric Corporation Marine instrument

Also Published As

Publication number Publication date
NO153782C (en) 1986-05-28
FR2445532A1 (en) 1980-07-25
EP0013224A1 (en) 1980-07-09
NO153782B (en) 1986-02-10
MX147124A (en) 1982-10-11
ES486761A0 (en) 1980-12-16
AU529599B2 (en) 1983-06-16
NO794227L (en) 1980-06-30
ES8102360A1 (en) 1980-12-16
BR7908388A (en) 1980-09-23
EP0013224B1 (en) 1982-11-03
AU5390779A (en) 1980-07-03
DE2963994D1 (en) 1982-12-09
FR2445532B1 (en) 1983-01-07
CA1139369A (en) 1983-01-11
JPS5590853A (en) 1980-07-09
JPS6363856B2 (en) 1988-12-08
ATE1760T1 (en) 1982-11-15
MY8500056A (en) 1985-12-31

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