GB1520295A - Well logging methods and apparatus - Google Patents

Well logging methods and apparatus

Info

Publication number
GB1520295A
GB1520295A GB30522/75A GB3052275A GB1520295A GB 1520295 A GB1520295 A GB 1520295A GB 30522/75 A GB30522/75 A GB 30522/75A GB 3052275 A GB3052275 A GB 3052275A GB 1520295 A GB1520295 A GB 1520295A
Authority
GB
United Kingdom
Prior art keywords
borehole
main
current
circuit
auxiliary
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.)
Expired
Application number
GB30522/75A
Other languages
English (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 GB1520295A publication Critical patent/GB1520295A/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
    • G01V3/24—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 using AC

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)
GB30522/75A 1974-07-22 1975-07-22 Well logging methods and apparatus Expired GB1520295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/490,377 US4087739A (en) 1974-07-22 1974-07-22 Earth formation permeability determining technique using synthetic resistivity parameters

Publications (1)

Publication Number Publication Date
GB1520295A true GB1520295A (en) 1978-08-02

Family

ID=23947783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30522/75A Expired GB1520295A (en) 1974-07-22 1975-07-22 Well logging methods and apparatus

Country Status (10)

Country Link
US (1) US4087739A (enExample)
AR (1) AR208705A1 (enExample)
AU (1) AU503360B2 (enExample)
BR (1) BR7504613A (enExample)
CA (1) CA1051518A (enExample)
EG (1) EG12073A (enExample)
FR (1) FR2280090A1 (enExample)
GB (1) GB1520295A (enExample)
IN (1) IN145453B (enExample)
IT (1) IT1039943B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130378A (en) * 1982-11-12 1984-05-31 Teleco Oilfield Services Inc Borehole resistivity measurement
GB2146125A (en) * 1983-06-20 1985-04-11 Shell Int Research Apparatus for focused electrode induced polarization logging
US10927659B2 (en) 2015-12-11 2021-02-23 Halliburton Energy Services, Inc. Mud cake correction of formation measurement data

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697150A (en) * 1985-10-11 1987-09-29 Western Atlas International, Inc. Two electrode well logging system for measuring resistivity of subsurface formations
US5892163A (en) * 1998-01-27 1999-04-06 Geophysical Survey Systems, Inc. Sewer and pipeline inspection transporter tool
US8106659B2 (en) * 2008-07-25 2012-01-31 Precision Energy Services, Inc. In situ measurements in formation testing to determine true formation resistivity

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075142A (en) * 1960-02-26 1963-01-22 Continental Oil Co Electrical well logging device
US3579098A (en) * 1968-10-24 1971-05-18 Dresser Ind Method and combination well-logging apparatus for conducting both deep and shallow investigation of the formations surrounding a borehole
US3660755A (en) * 1969-11-07 1972-05-02 Dresser Ind Dual focused log having alternately energized focusing apparatus therein
US3882376A (en) * 1972-04-24 1975-05-06 Schlumberger Technology Corp Methods and apparatus for investigating earth formations
US3760260A (en) * 1972-04-24 1973-09-18 Schlumberger Technology Corp Method and apparatus for investigating earth formations by emitting survey and auxiliary currents from the same electrode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130378A (en) * 1982-11-12 1984-05-31 Teleco Oilfield Services Inc Borehole resistivity measurement
GB2146125A (en) * 1983-06-20 1985-04-11 Shell Int Research Apparatus for focused electrode induced polarization logging
US10927659B2 (en) 2015-12-11 2021-02-23 Halliburton Energy Services, Inc. Mud cake correction of formation measurement data

Also Published As

Publication number Publication date
AU8309475A (en) 1977-01-20
FR2280090A1 (fr) 1976-02-20
IT1039943B (it) 1979-12-10
CA1051518A (en) 1979-03-27
BR7504613A (pt) 1976-07-06
AR208705A1 (es) 1977-02-28
EG12073A (en) 1978-06-30
IN145453B (enExample) 1978-10-14
US4087739A (en) 1978-05-02
FR2280090B1 (enExample) 1977-12-09
AU503360B2 (en) 1979-08-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee