PH19652A - Methods and apparatus for environmetal correction of thermanl neutron logs - Google Patents

Methods and apparatus for environmetal correction of thermanl neutron logs

Info

Publication number
PH19652A
PH19652A PH27860A PH27860A PH19652A PH 19652 A PH19652 A PH 19652A PH 27860 A PH27860 A PH 27860A PH 27860 A PH27860 A PH 27860A PH 19652 A PH19652 A PH 19652A
Authority
PH
Philippines
Prior art keywords
thermanl
environmetal
correction
methods
neutron logs
Prior art date
Application number
PH27860A
Other languages
English (en)
Inventor
Hubert D Scott
William Preeg
Original Assignee
Schlumberger Ltd
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 filed Critical Schlumberger Ltd
Publication of PH19652A publication Critical patent/PH19652A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
    • G01V5/107—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting reflected or back-scattered neutrons
    • G01V5/108—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting reflected or back-scattered neutrons the neutron source being of the pulsed type

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (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)
PH27860A 1981-09-14 1982-09-10 Methods and apparatus for environmetal correction of thermanl neutron logs PH19652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/302,092 US4445033A (en) 1981-09-14 1981-09-14 Methods and apparatus for environmental correction of thermal neutron logs

Publications (1)

Publication Number Publication Date
PH19652A true PH19652A (en) 1986-06-09

Family

ID=23166218

Family Applications (1)

Application Number Title Priority Date Filing Date
PH27860A PH19652A (en) 1981-09-14 1982-09-10 Methods and apparatus for environmetal correction of thermanl neutron logs

Country Status (12)

Country Link
US (1) US4445033A (fr)
JP (1) JPS58117480A (fr)
CA (1) CA1182741A (fr)
DZ (1) DZ457A1 (fr)
EG (1) EG16272A (fr)
FR (1) FR2513386B1 (fr)
GB (1) GB2109926B (fr)
IT (1) IT1152548B (fr)
NO (1) NO822887L (fr)
NZ (1) NZ201894A (fr)
OA (1) OA07209A (fr)
PH (1) PH19652A (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8331914D0 (en) * 1983-11-30 1984-01-04 Atomic Energy Authority Uk Inspection of buried pipelines
US5128541A (en) * 1986-10-03 1992-07-07 Schlumberger Technology Corporation Thermal decay time logging method
US4958073A (en) * 1988-12-08 1990-09-18 Schlumberger Technology Corporation Apparatus for fine spatial resolution measurments of earth formations
US5506769A (en) * 1990-10-05 1996-04-09 Halliburton Logging Services, Inc. Method for enhancing vertical resolution of nuclear well logging instruments
US5105080A (en) * 1991-04-02 1992-04-14 Schlumberger Technology Corporation Method and apparatus for determining the respective contributions of borehole and earth formation in gamma ray spectroscopy
US6064063A (en) * 1997-11-06 2000-05-16 Western Atlas International, Inc. Method for determining thermal neutron capture cross-section of earth formations using measurement from multiple capture gamma ray detectors
US6124590A (en) * 1997-11-06 2000-09-26 Western Atlas International, Inc. Method for determining thermal neutron capture cross-section of earth formations using measurements from multiple capture gamma ray detectors
US7253402B2 (en) * 2003-09-30 2007-08-07 Baker Hughes Incorporated Apparatus and method for determining thermal neutron capture cross section of a subsurface formation from a borehole using multiple detectors
JP4836235B2 (ja) * 2005-09-14 2011-12-14 イーグルクランプ株式会社 クランプにおけるワーク滑落防止装置
US9304214B2 (en) * 2010-06-30 2016-04-05 Schlumberger Technology Corporation Neutron detection using a shielded gamma detector
US9568639B2 (en) 2014-05-16 2017-02-14 Schlumberger Technology Corporation Borehole tool calibration method
US9575208B2 (en) 2014-05-16 2017-02-21 Schlumberger Technology Corporation Geological constituent estimation using calculated spectra relationships
US10451767B2 (en) 2016-09-26 2019-10-22 Halliburton Energy Services, Inc. Neutron porosity log casing thickness corrections
WO2019093917A1 (fr) 2017-11-08 2019-05-16 Baker Hughes, A Ge Company, Llc Évaluation d'une composition de formation à l'aide d'outils de spectroscopie gamma induite par neutrons
CN112302641B (zh) * 2020-10-29 2024-07-26 中国石油天然气集团有限公司 一种随钻中子孔隙度测井仪的井场校验装置及使用方法
CN119981841B (zh) * 2023-11-13 2025-12-12 中国石油化工集团有限公司 一种地层孔隙度测量方法、系统、测井仪及介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509342A (en) * 1966-12-08 1970-04-28 Schlumberger Technology Corp Two detector pulsed neutron logging tool
US3859524A (en) * 1969-09-25 1975-01-07 Schlumberger Technology Corp Method and apparatus for automatic correction of measured thermal neutron decay time
US3818225A (en) * 1972-09-18 1974-06-18 Texaco Inc Methods for thermal neutron diffusion coefficient logging
US3890501A (en) * 1973-05-01 1975-06-17 Schlumberger Technology Corp Neutron logging reliability techniques and apparatus
US4095102A (en) * 1976-09-30 1978-06-13 Schlumberger Technology Corporation Hydrocarbon detection utilizing neutron borehole measurements
US4224516A (en) * 1978-10-26 1980-09-23 Schlumberger Technology Corporation Methods and apparatus for measuring thermal neutron decay characteristics of earth formations
US4223218A (en) * 1978-10-26 1980-09-16 Schlumberger Technology Corporation Methods and apparatus for optimizing measurements of thermal neutron decay characteristics
IE49620B1 (en) * 1978-10-26 1985-11-13 Schlumberger Ltd Method and apparatus for measuring thermal neutron characteristics
US4350888A (en) * 1980-09-02 1982-09-21 Halliburton Company Method and system for determining thermal neutron lifetime of earth formations

Also Published As

Publication number Publication date
JPS58117480A (ja) 1983-07-13
DZ457A1 (fr) 2004-09-13
FR2513386B1 (fr) 1986-03-14
EG16272A (en) 1993-12-30
US4445033A (en) 1984-04-24
FR2513386A1 (fr) 1983-03-25
IT1152548B (it) 1987-01-07
OA07209A (fr) 1984-04-30
GB2109926A (en) 1983-06-08
NZ201894A (en) 1985-09-13
GB2109926B (en) 1985-06-05
JPH0331234B2 (fr) 1991-05-02
CA1182741A (fr) 1985-02-19
IT8223226A0 (it) 1982-09-13
NO822887L (no) 1983-03-15

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