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GB2011085A - Electrode-type logging sonde - Google Patents

Electrode-type logging sonde

Info

Publication number
GB2011085A
GB2011085A GB7848756A GB7848756A GB2011085A GB 2011085 A GB2011085 A GB 2011085A GB 7848756 A GB7848756 A GB 7848756A GB 7848756 A GB7848756 A GB 7848756A GB 2011085 A GB2011085 A GB 2011085A
Authority
GB
United Kingdom
Prior art keywords
members
pressure
annular
mandrel
annular members
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB7848756A
Other versions
GB2011085B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Ltd USA
Original Assignee
Schlumberger Ltd USA
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 Ltd USA filed Critical Schlumberger Ltd USA
Publication of GB2011085A publication Critical patent/GB2011085A/en
Application granted granted Critical
Publication of GB2011085B publication Critical patent/GB2011085B/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Debugging And Monitoring (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

An electrical borehole logging tool includes a mandrel 42 around which a plurality of annular electrode members (A0 to A2, M1, M2 etc) and insulating members (such as 63, 65, 67, 69, 71) are alternately stacked to achieve a particular configuration of formation- measuring electrodes. Fluid seals (such as 83, 84) are arranged between adjacent ones of the annular members whereby a fluid tight space 77 is formed between the mandrel and annular members which is filled with silicone oil. The pressure in the space is regulated by means of expansible pressure balancing means comprising an expansion sleeve 106. Pressure of the borehole fluids is transmitted to the sleeve 106 via holes 111 in outer tube 110. A substantially constant compressive pre-stressing force is applied to the stack of annular members by tubular body member 102 in the form of a stiff spring providing an axial force. <IMAGE>
GB7848756A 1977-12-27 1978-12-15 Electrode-type logging sonde Expired GB2011085B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7739263A FR2413672A1 (en) 1977-12-27 1977-12-27 ELECTRODE DIAGRAPHY PROBE

Publications (2)

Publication Number Publication Date
GB2011085A true GB2011085A (en) 1979-07-04
GB2011085B GB2011085B (en) 1982-06-30

Family

ID=9199360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7848756A Expired GB2011085B (en) 1977-12-27 1978-12-15 Electrode-type logging sonde

Country Status (11)

Country Link
AR (1) AR222816A1 (en)
CA (1) CA1114019A (en)
EG (1) EG13566A (en)
FR (1) FR2413672A1 (en)
GB (1) GB2011085B (en)
MX (1) MX145495A (en)
MY (1) MY8500189A (en)
NL (1) NL187772C (en)
NO (1) NO151515C (en)
OA (1) OA06142A (en)
TR (1) TR20879A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291678A1 (en) * 2001-09-06 2003-03-12 Services Petroliers Schlumberger A method and apparatus for determining the resistivity of a formation surrounding a cased well
RU2319986C1 (en) * 2006-07-12 2008-03-20 Закрытое Акционерное общество Научно-производственная фирма по геофизическим и геоэкологическим работам "Каротаж" Device for electrical logging
US12264446B2 (en) 2019-04-30 2025-04-01 3M Innovative Properties Company Road obstacle warning system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291678A1 (en) * 2001-09-06 2003-03-12 Services Petroliers Schlumberger A method and apparatus for determining the resistivity of a formation surrounding a cased well
WO2003023453A1 (en) * 2001-09-06 2003-03-20 Services Petroliers Schlumberger A method and apparatus for determining the resistivity of a formation surrounding a cased well
US6894500B2 (en) 2001-09-06 2005-05-17 Schlumberger Technology Corporation Method and apparatus for determining the resistivity of a formation surrounding a cased well
RU2319986C1 (en) * 2006-07-12 2008-03-20 Закрытое Акционерное общество Научно-производственная фирма по геофизическим и геоэкологическим работам "Каротаж" Device for electrical logging
US12264446B2 (en) 2019-04-30 2025-04-01 3M Innovative Properties Company Road obstacle warning system

Also Published As

Publication number Publication date
CA1114019A (en) 1981-12-08
AR222816A1 (en) 1981-06-30
NO151515B (en) 1985-01-07
MY8500189A (en) 1985-12-31
NL187772C (en) 1992-01-02
FR2413672B1 (en) 1982-05-14
NO784184L (en) 1979-06-28
NO151515C (en) 1985-04-24
EG13566A (en) 1991-03-30
MX145495A (en) 1982-02-24
GB2011085B (en) 1982-06-30
FR2413672A1 (en) 1979-07-27
OA06142A (en) 1981-06-30
TR20879A (en) 1982-11-23
NL7812384A (en) 1979-06-29
NL187772B (en) 1991-08-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961215