NO793224L - Fremgangsmaate og apparat til reduksjon av dynamikkomraadene for spenninger og stroemmer maalt i en grunnformasjon - Google Patents

Fremgangsmaate og apparat til reduksjon av dynamikkomraadene for spenninger og stroemmer maalt i en grunnformasjon

Info

Publication number
NO793224L
NO793224L NO793224A NO793224A NO793224L NO 793224 L NO793224 L NO 793224L NO 793224 A NO793224 A NO 793224A NO 793224 A NO793224 A NO 793224A NO 793224 L NO793224 L NO 793224L
Authority
NO
Norway
Prior art keywords
voltage
signal
current
frequency
currents
Prior art date
Application number
NO793224A
Other languages
English (en)
Norwegian (no)
Inventor
Richard Boyd Culver
Francis Xavier Bostick
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of NO793224L publication Critical patent/NO793224L/no

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)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
NO793224A 1978-12-04 1979-10-08 Fremgangsmaate og apparat til reduksjon av dynamikkomraadene for spenninger og stroemmer maalt i en grunnformasjon NO793224L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/966,292 US4282486A (en) 1978-12-04 1978-12-04 Dual focused resistivity logging method and apparatus with dynamic range reduction

Publications (1)

Publication Number Publication Date
NO793224L true NO793224L (no) 1980-06-05

Family

ID=25511174

Family Applications (1)

Application Number Title Priority Date Filing Date
NO793224A NO793224L (no) 1978-12-04 1979-10-08 Fremgangsmaate og apparat til reduksjon av dynamikkomraadene for spenninger og stroemmer maalt i en grunnformasjon

Country Status (8)

Country Link
US (1) US4282486A (da)
CA (1) CA1126814A (da)
DE (1) DE2949211A1 (da)
DK (1) DK512979A (da)
GB (1) GB2042735B (da)
HU (1) HU184075B (da)
NL (1) NL7908355A (da)
NO (1) NO793224L (da)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736300A (en) * 1982-04-30 1988-04-05 Western Atlas International, Inc. Automatic gain control of formation measurements by varying induced current flow
US4570123A (en) * 1982-11-12 1986-02-11 Teleco Oilfield Services Inc. Electrode array for measurement of borehole resistivity
GB2141549A (en) * 1983-05-31 1984-12-19 Gearhart Ind Inc Method and apparatus for exploration of geological formations in boreholes
US4583046A (en) * 1983-06-20 1986-04-15 Shell Oil Company Apparatus for focused electrode induced polarization logging
HUT51766A (en) * 1988-05-25 1990-05-28 Magyar Allami Eoetvoes Lorand Method and apparatus for discriminative measuring the hydraulically conductive open cracks and non-conductive closed cracks of hard rocks crossed by bore holes
US5793176A (en) * 1993-04-02 1998-08-11 Sandia Corporation Spatial feature tracking impedence sensor using multiple electric fields
US7639016B2 (en) * 2005-08-10 2009-12-29 Baker Hughes Incorporated Downhole multi-phase flow imager
US7804302B2 (en) * 2005-08-10 2010-09-28 Baker Hughes Incorporated Method and apparatus for enhancing formation resistivity images obtained with downhole galvanic tools
US7667464B2 (en) * 2006-11-02 2010-02-23 Westerngeco L.L.C. Time segmentation of frequencies in controlled source electromagnetic (CSEM) applications
US8319498B2 (en) * 2009-10-19 2012-11-27 Schlumberger Technology Corporation Microresistivity imaging at multiple depths of investigation
US9772424B2 (en) 2013-12-30 2017-09-26 Halliburton Energy Services, Inc. Hybrid amplitude adjustment algorithm for resistivity logging tools
WO2016057122A1 (en) * 2014-10-10 2016-04-14 Halliburton Energy Services, Inc. Formation resistivity measurement apparatus, systems, and methods
CN104453880A (zh) * 2014-12-09 2015-03-25 重庆地质仪器厂 一种七电极电阻率测量探管
CN111810122A (zh) * 2020-06-30 2020-10-23 中国石油天然气集团有限公司 一种用于随钻电阻率成像测井仪器的纽扣电极结构
CN111929740B (zh) * 2020-07-30 2022-06-03 吉辰智能设备集团有限公司 一种阵列侧向测井仪及其控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712630A (en) * 1951-11-20 1955-07-05 Schlumberger Well Surv Corp Methods and apparatus for electrical logging of wells
US2776402A (en) * 1954-03-30 1957-01-01 Schlumberger Well Surv Corp Electrical well logging
US3056917A (en) * 1959-11-30 1962-10-02 Schlumberger Well Surv Corp Methods and apparatus for investigating earth formations
US3452269A (en) * 1968-07-15 1969-06-24 Schlumberger Technology Corp Methods and apparatus for investigating earth formations including adjusting the potential distribution in an axial direction through a borehole
US3660755A (en) * 1969-11-07 1972-05-02 Dresser Ind Dual focused log having alternately energized focusing apparatus therein
FR2128200B1 (da) * 1971-03-11 1974-03-01 Schlumberger Prospection
US3973188A (en) * 1972-04-18 1976-08-03 Schlumberger Limited Method and apparatus for the determination of the thickness of a mudcake layer on a borehole wall traversing a subsurface earth formation

Also Published As

Publication number Publication date
NL7908355A (nl) 1980-06-06
GB2042735B (en) 1983-09-14
GB2042735A (en) 1980-09-24
HU184075B (en) 1984-06-28
CA1126814A (en) 1982-06-29
DE2949211A1 (de) 1980-06-19
US4282486A (en) 1981-08-04
DK512979A (da) 1980-06-05

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