DE69427880T2 - Verfahren und Vorrichtung zur Reduzierung der Porosität-Matrix-Dichte während der Messung der Porosität mittels epithermischer Neutronen in einem Bohrloch - Google Patents
Verfahren und Vorrichtung zur Reduzierung der Porosität-Matrix-Dichte während der Messung der Porosität mittels epithermischer Neutronen in einem BohrlochInfo
- Publication number
- DE69427880T2 DE69427880T2 DE69427880T DE69427880T DE69427880T2 DE 69427880 T2 DE69427880 T2 DE 69427880T2 DE 69427880 T DE69427880 T DE 69427880T DE 69427880 T DE69427880 T DE 69427880T DE 69427880 T2 DE69427880 T2 DE 69427880T2
- Authority
- DE
- Germany
- Prior art keywords
- porosity
- borehole
- measurement
- reducing
- density during
- 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 - Fee Related
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 nuclear radiation, e.g. of natural or induced radioactivity
- G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
- G01V5/08—Prospecting or detecting by the use of nuclear 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 nuclear 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 nuclear 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/006,903 US5349184A (en) | 1993-01-21 | 1993-01-21 | Method and apparatus for reducing matrix density effects on porosity measurements during epithermal neutron porosity well logging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69427880D1 DE69427880D1 (de) | 2001-09-13 |
| DE69427880T2 true DE69427880T2 (de) | 2002-04-11 |
Family
ID=21723186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69427880T Expired - Fee Related DE69427880T2 (de) | 1993-01-21 | 1994-01-17 | Verfahren und Vorrichtung zur Reduzierung der Porosität-Matrix-Dichte während der Messung der Porosität mittels epithermischer Neutronen in einem Bohrloch |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5349184A (de) |
| EP (1) | EP0608996B1 (de) |
| DE (1) | DE69427880T2 (de) |
| DK (1) | DK0608996T3 (de) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596191A (en) * | 1995-05-22 | 1997-01-21 | Western Atlas International, Inc. | Method and apparatus for epithermal neutron porosity measurement corrected for tool standoff and formation lithology |
| US5684299A (en) * | 1995-06-26 | 1997-11-04 | Schlumberger Technology Corporation | Method for determining porosity in an invaded gas reservoir |
| US5936405A (en) * | 1995-09-25 | 1999-08-10 | Numar Corporation | System and method for lithology-independent gas detection using multifrequency gradient NMR logging |
| US6956371B2 (en) * | 1995-10-12 | 2005-10-18 | Halliburton Energy Services, Inc. | Method and apparatus for detecting diffusion sensitive phases with estimation of residual error in NMR logs |
| US6512371B2 (en) | 1995-10-12 | 2003-01-28 | Halliburton Energy Services, Inc. | System and method for determining oil, water and gas saturations for low-field gradient NMR logging tools |
| US6242912B1 (en) | 1995-10-12 | 2001-06-05 | Numar Corporation | System and method for lithology-independent gas detection using multifrequency gradient NMR logging |
| US6005389A (en) * | 1996-03-15 | 1999-12-21 | Numar Corporation | Pulse sequences and interpretation techniques for NMR measurements |
| US6531868B2 (en) | 1996-12-30 | 2003-03-11 | Halliburton Energy Services, Inc. | System and methods for formation evaluation while drilling |
| US6051973A (en) | 1996-12-30 | 2000-04-18 | Numar Corporation | Method for formation evaluation while drilling |
| US6204663B1 (en) | 1997-03-26 | 2001-03-20 | Numar Corporation | Pulse sequence and method for suppression of magneto-acoustic artifacts in NMR data |
| US6032102A (en) * | 1997-07-31 | 2000-02-29 | Schlumberger Technology Corporation | Method and apparatus for measuring well characteristics and formation properties |
| US6111408A (en) * | 1997-12-23 | 2000-08-29 | Numar Corporation | Nuclear magnetic resonance sensing apparatus and techniques for downhole measurements |
| WO1999036801A1 (en) | 1998-01-16 | 1999-07-22 | Numar Corporation | Method and apparatus for nuclear magnetic resonance measuring while drilling |
| US6023164A (en) * | 1998-02-20 | 2000-02-08 | Numar Corporation | Eccentric NMR well logging apparatus and method |
| US6107796A (en) * | 1998-08-17 | 2000-08-22 | Numar Corporation | Method and apparatus for differentiating oil based mud filtrate from connate oil |
| US6377042B1 (en) | 1998-08-31 | 2002-04-23 | Numar Corporation | Method and apparatus for merging of NMR echo trains in the time domain |
| US6366087B1 (en) * | 1998-10-30 | 2002-04-02 | George Richard Coates | NMR logging apparatus and methods for fluid typing |
| US6316940B1 (en) | 1999-03-17 | 2001-11-13 | Numar Corporation | System and method for identification of hydrocarbons using enhanced diffusion |
| US6661226B1 (en) | 1999-08-13 | 2003-12-09 | Halliburton Energy Services, Inc. | NMR apparatus and methods for measuring volumes of hydrocarbon gas and oil |
| US6255819B1 (en) | 1999-10-25 | 2001-07-03 | Halliburton Energy Services, Inc. | System and method for geologically-enhanced magnetic resonance imaging logs |
| US7148471B2 (en) * | 2001-05-18 | 2006-12-12 | Schlumberger Technology Corporation | Well logging apparatus and method for measuring formation properties |
| US6518756B1 (en) * | 2001-06-14 | 2003-02-11 | Halliburton Energy Services, Inc. | Systems and methods for determining motion tool parameters in borehole logging |
| US6738720B2 (en) | 2001-11-29 | 2004-05-18 | Computalog U.S.A. | Apparatus and methods for measurement of density of materials using a neutron source and two spectrometers |
| US7463027B2 (en) | 2003-05-02 | 2008-12-09 | Halliburton Energy Services, Inc. | Systems and methods for deep-looking NMR logging |
| MXPA06003671A (es) | 2003-10-03 | 2006-06-20 | Halliburton Energy Serv Inc | Sistema y metodos para diagrafias basadas en t1. |
| US7339161B2 (en) | 2005-02-24 | 2008-03-04 | Schlumberger Technology Corporation | Shielded pads for detecting subsurface radiation phenomena |
| WO2010144702A2 (en) * | 2009-06-12 | 2010-12-16 | Baker Hughes Incorporated | Nuclear detectors built directly into shielding or modulating material |
| US9031790B2 (en) * | 2010-03-23 | 2015-05-12 | Schlumberger Technology Corporation | System and method for correction of borehole effects in a neutron porosity measurement |
| US9372277B2 (en) * | 2010-04-21 | 2016-06-21 | Schlumberger Technology Corporation | Neutron porosity downhole tool with improved precision and reduced lithology effects |
| WO2012012120A2 (en) * | 2010-06-30 | 2012-01-26 | Schlumberger Canada Limited | Identification of neutron capture from a pulsed neutron logging tool |
| US20130299687A1 (en) * | 2010-11-19 | 2013-11-14 | Schlumberger Technology Corporation | Neutron Wellbore Imaging Tool |
| CN104865614B (zh) * | 2014-02-20 | 2017-09-29 | 中国石油化工股份有限公司 | 基于可变骨架参数的复杂储层流体识别方法 |
| CN112814667B (zh) * | 2021-01-05 | 2023-07-14 | 中海石油(中国)有限公司 | 基于热中子测井计数率比值评价致密气层含水性的方法 |
| US11906692B2 (en) * | 2021-02-11 | 2024-02-20 | China Petroleum & Chemical Corporation | Nuclear logging tools and applications thereof |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487211A (en) * | 1965-06-02 | 1969-12-30 | Dresser Ind | Method and apparatus for radioactivity well logging utilizing the decline of the epithermal neutron population |
| US4095102A (en) * | 1976-09-30 | 1978-06-13 | Schlumberger Technology Corporation | Hydrocarbon detection utilizing neutron borehole measurements |
| US4122340A (en) * | 1977-04-20 | 1978-10-24 | Texaco Inc. | Pulsed neutron porosity logging system |
| US4122339A (en) * | 1977-04-20 | 1978-10-24 | Texaco Inc. | Earth formation pulsed neutron porosity logging system utilizing epithermal neutron and inelastic scattering gamma ray detectors |
| US4760252A (en) * | 1983-06-28 | 1988-07-26 | Schlumberger Technology Corporation | Well logging tool with an accelerator neutron source |
| US4600838A (en) * | 1984-07-20 | 1986-07-15 | Schlumberger Technology Corporation | Methods and apparatus for measuring thermal neutron decay characteristics of earth formations |
| US4691102A (en) * | 1985-06-17 | 1987-09-01 | Halliburton Company | Borehole compensation method and apparatus using variations in relative borehole components |
| US4816674A (en) * | 1987-06-29 | 1989-03-28 | Schlumberger Technology Corporation | Determining a formation porosity from neutron logging information |
| WO1989011108A2 (en) * | 1988-05-11 | 1989-11-16 | Mobil Oil Corporation | Method of analyzing exponential data |
| US4910397A (en) * | 1989-01-10 | 1990-03-20 | Mobil Oil Corporation | Pulsed neutron porosity logging |
| US4972082A (en) * | 1989-03-16 | 1990-11-20 | Schlumberger Technology Corporation | Methods and apparatus for epithermal neutron logging |
| US4973839A (en) * | 1989-03-23 | 1990-11-27 | Schlumberger Technology Corporation | Method and apparatus for epithermal neutron decay logging |
| US5051581A (en) * | 1990-05-01 | 1991-09-24 | Schlumberger Technology Corporation | Method and apparatus for epithermal neutron porosity well logging |
| US5068531A (en) * | 1991-04-04 | 1991-11-26 | Mobil Oil Corporation | Method and apparatus for producing a porosity log of a subsurface formation corrected for detector standoff |
-
1993
- 1993-01-21 US US08/006,903 patent/US5349184A/en not_active Expired - Lifetime
-
1994
- 1994-01-17 DK DK94300323T patent/DK0608996T3/da active
- 1994-01-17 DE DE69427880T patent/DE69427880T2/de not_active Expired - Fee Related
- 1994-01-17 EP EP94300323A patent/EP0608996B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0608996A3 (en) | 1997-08-27 |
| DK0608996T3 (da) | 2001-12-03 |
| EP0608996B1 (de) | 2001-08-08 |
| EP0608996A2 (de) | 1994-08-03 |
| US5349184A (en) | 1994-09-20 |
| DE69427880D1 (de) | 2001-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |