BRPI0403764A - Método de medição por nêutrons para determinação de uma porosidade de uma formação geológica que circunda um furo perfurado e sistema para determinação da porosidade de uma formação geológica que circunda um furo perfurado - Google Patents

Método de medição por nêutrons para determinação de uma porosidade de uma formação geológica que circunda um furo perfurado e sistema para determinação da porosidade de uma formação geológica que circunda um furo perfurado

Info

Publication number
BRPI0403764A
BRPI0403764A BR0403764-2A BRPI0403764A BRPI0403764A BR PI0403764 A BRPI0403764 A BR PI0403764A BR PI0403764 A BRPI0403764 A BR PI0403764A BR PI0403764 A BRPI0403764 A BR PI0403764A
Authority
BR
Brazil
Prior art keywords
porosity
determining
geological formation
formation surrounding
perforated hole
Prior art date
Application number
BR0403764-2A
Other languages
English (en)
Inventor
Darwin Ellis
Benoit Couet
Michael Evans
Charles Case
Francoise Allioli
Original Assignee
Schlumberger Surenco Sa
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 Surenco Sa filed Critical Schlumberger Surenco Sa
Publication of BRPI0403764A publication Critical patent/BRPI0403764A/pt

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
    • 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
    • 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

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)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Radiation (AREA)

Abstract

"MéTODO DE MEDIçãO POR NêUTRONS PARA DETERMINAçãO DE UMA POROSIDADE DE UMA FORMAçãO GEOLóGICA QUE CIRCUNDA UM FURO PERFURADO E SISTEMA PARA DETERMINAçãO DA POROSIDADE DE UMA FORMAçãO GEOLóGICA QUE CIRCUNDA UM FURO PERFURADO". A invenção refere-se a um método de medição baseado na utilização de nêutrons para determinação de uma porosidade de uma formação subterrânea que circunda um furo perfurado, compreendendo: - encaminhamento de uma ferramenta ao longo do referido furo perfurado, em que a referida ferramenta compreende uma fonte de radiação de nêutrons e pelo menos um detector axialmente espaçado com relação à referida fonte; - geração de uma resposta de detecção medida para o referido pelo menos um detector que indique uma interação entre a radiação de nêutrons da referida fonte e as referidas formações geológicas; - operação da referida resposta de detecção medida com uma equação matemática previamente determinada, sendo dessa forma obtida uma resposta de detecção corrigida que é independente da densidade da referida formação geológica; e - determinação da porosidade da formação geológica que circunda o furo perfurado, a partir da referida resposta de detecção corrigida. A invenção também se refere a um sistema em que o referido método é implementado.
BR0403764-2A 2003-09-08 2004-09-06 Método de medição por nêutrons para determinação de uma porosidade de uma formação geológica que circunda um furo perfurado e sistema para determinação da porosidade de uma formação geológica que circunda um furo perfurado BRPI0403764A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/657,391 US7112783B2 (en) 2003-09-08 2003-09-08 Neutron measurement method for determining porosity of a formation surrounding a borehole

Publications (1)

Publication Number Publication Date
BRPI0403764A true BRPI0403764A (pt) 2005-06-14

Family

ID=33132074

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0403764-2A BRPI0403764A (pt) 2003-09-08 2004-09-06 Método de medição por nêutrons para determinação de uma porosidade de uma formação geológica que circunda um furo perfurado e sistema para determinação da porosidade de uma formação geológica que circunda um furo perfurado

Country Status (6)

Country Link
US (1) US7112783B2 (pt)
CN (1) CN100455767C (pt)
BR (1) BRPI0403764A (pt)
EA (1) EA010582B1 (pt)
GB (1) GB2405696B (pt)
NO (1) NO335728B1 (pt)

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CN101135733B (zh) * 2007-10-09 2010-05-19 西安奥华电子仪器有限责任公司 脉冲中子双谱-示踪剩余油饱和度测井方法
US7728306B2 (en) * 2007-10-26 2010-06-01 Schlumberger Technology Corporation Neutron logging tool having source and target with deuterium-tritium gas admixture
BRPI0918767A2 (pt) 2008-08-26 2015-12-01 Prad Res & Dev Ltd método para determinar saturação de água em uma formação de subsuperfície, e instrumento de perfilagem de poço.
US9370621B2 (en) * 2008-12-16 2016-06-21 Medtronic Minimed, Inc. Needle insertion systems and methods
US7692140B1 (en) 2008-12-19 2010-04-06 Hall David R Downhole cover
EP2391799A2 (en) 2009-01-30 2011-12-07 Schlumberger Technology B.V. System and method for matching lithology responses of downhole tools having different source energies
US8461520B2 (en) * 2009-08-24 2013-06-11 Baker Hughes Incorporated Sourceless gamma ray production system and methods
CN101793145B (zh) * 2010-03-29 2012-10-03 大庆油田有限责任公司 一种中子寿命和补偿中子组合测井确定钙质夹层和地层孔隙度方法
CN102080538B (zh) * 2010-12-16 2013-01-09 中国石油集团钻井工程技术研究院 随钻中子孔隙度测量的中子发射控制方法、装置及短节
BR112013030122B1 (pt) 2011-05-23 2021-07-06 Schlumberger Technology B. V. método para simular uma resposta de um instrumento de perfilagem de poço de nêutrons, meio legível por computador não transitório, e método para perfilagem de poço
RU2607335C2 (ru) 2012-11-01 2017-01-10 Хэллибертон Энерджи Сервисиз, Инк. Способы и системы для обнаружения надтепловых и тепловых нейтронов
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
US10422736B2 (en) * 2015-09-16 2019-09-24 Halliburton Energy Services, Inc. Method for determining porosity associated with organic matter in a well or formation
US9939549B2 (en) 2015-12-06 2018-04-10 Schlumberger Technology Corporation Measurement of formation bulk density employing forward modeling of neutron-induced gamma-ray emission

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US3483376A (en) * 1966-08-03 1969-12-09 Schlumberger Technology Corp Two neutron detector earth formation porosity logging technique
US3823319A (en) * 1970-08-21 1974-07-09 Schlumberger Technology Corp Porosity determination with mudcake correction
AU8343182A (en) * 1981-05-11 1982-11-18 Australian Atomic Energy Commission Neutron method of elemental analysis
US4631405A (en) * 1984-12-05 1986-12-23 Halliburton Company Method and apparatus for dual-spaced fast/epithermal neutron porosity measurements
US4661701A (en) * 1985-07-17 1987-04-28 Schlumberger Technology Corporation Methods and apparatus for borehole-corrected spectral analysis of earth formations
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US5767510A (en) * 1996-04-15 1998-06-16 Schlumberger Technology Corporation Borehole invariant porosity measurement system
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Also Published As

Publication number Publication date
GB0419113D0 (en) 2004-09-29
US7112783B2 (en) 2006-09-26
GB2405696A (en) 2005-03-09
CN1619100A (zh) 2005-05-25
EA200401050A1 (ru) 2005-04-28
GB2405696B (en) 2006-03-29
CN100455767C (zh) 2009-01-28
NO335728B1 (no) 2015-02-02
EA010582B1 (ru) 2008-10-30
NO20043747L (no) 2005-03-09
US20050051718A1 (en) 2005-03-10

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O, 13 E 25 DA LPI

B12B Appeal against refusal [chapter 12.2 patent gazette]