GB1429989A - Measurement of oil or gas content of earth formations - Google Patents
Measurement of oil or gas content of earth formationsInfo
- Publication number
- GB1429989A GB1429989A GB3767773A GB3767773A GB1429989A GB 1429989 A GB1429989 A GB 1429989A GB 3767773 A GB3767773 A GB 3767773A GB 3767773 A GB3767773 A GB 3767773A GB 1429989 A GB1429989 A GB 1429989A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- detector
- earth formation
- mev
- log
- 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
Links
- 230000015572 biosynthetic process Effects 0.000 title abstract 7
- 238000005755 formation reaction Methods 0.000 title abstract 7
- 238000005259 measurement Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 5
- 230000005855 radiation Effects 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 239000008398 formation water Substances 0.000 abstract 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000005281 excited state Effects 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052722 tritium Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- 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
- G01V5/101—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 the secondary Y-rays produced in the surrounding layers of the bore hole
-
- 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
- G01V5/101—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 the secondary Y-rays produced in the surrounding layers of the bore hole
- G01V5/102—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 the secondary Y-rays produced in the surrounding layers of the bore hole 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)
- Engineering & Computer Science (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1429989 Measuring oil/gas content of earth formations CHEVRON RESEARCH CO 8 Aug 1973 [21 Aug 1972] 37677/73 Heading G1A A method of determining differences in the fractional volume oil and/or gas content of a reservoir earth formation 12 containing oil and/or gas surrounding a well bore 10 comprises (i) obtaining a first neutron-activation oxygen log and thermalneutron-decay-time log (ii) changing the oil and/or gas content of the earth formation surrounding the well bore (iii) obtaining a second neutronactivation oxygen log and thermal-neutron-decaytime log and (iv) calculating the required differences in fractional volume oil and/or gas of the earth formation from the measured difference in oxygen response between steps (i) and (iii) and the determined difference in total thermal neutron capture cross-section between steps (i) and (iii). A sonde 17 supports 7 radiation detectors 24, 26, generator 28 producing 14 MeV neutrons by the deuterium-tritium interaction and detector 30 which measures the 7 radiation produced by decay of unstable O<SP>16</SP> which is formed when the 14 MeV neutrons strike O<SP>16</SP> nuclei to form unstable N<SP>1</SP><SP>6</SP> which decays with a 7À3 second time constant and which emits beta rays to form an excited state of O<SP>16</SP> which emits two 7 rays of 6À13 MeV and 7À10 MeV in returning to stable O<SP>16</SP>. The record of radiation detected by detector 30 is trace 68 on chart 42. Detector 26 is gated to sample γ- radiation produced by decay of thermal neutrons for one millisecond after a burst of fast neutrons has been emitted by generator 28. The measurement from detector 26 is recorded as trace 66 on the chart, by way of cable 19, slip ring assembly 72 oscilloscope 46 and amplifier 56. The oil content is changed by flooding the earth formation or by production of oil from the earth formation. The flooding is done with an alcohol or micellar solution through valve 82, pump 84 and perforations 16 in the well casing 14, the flooding reducing the oil content substantially to zero by displacement. The displacing agent must then be itself displaced by water with a salinity equal to that of the original formation water, because of the large thermal neutron capture cross section of chlorine nuclei. Cleaned formation water can be injected from tank 88 through valve 90. Further detector 24 senses the natural radio-activity, recorded as trace 64.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00282618A US3817328A (en) | 1972-08-21 | 1972-08-21 | Neutron absorption and oxygen log for measuring oil content of formation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1429989A true GB1429989A (en) | 1976-03-31 |
Family
ID=23082327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3767773A Expired GB1429989A (en) | 1972-08-21 | 1973-08-08 | Measurement of oil or gas content of earth formations |
Country Status (4)
Country | Link |
---|---|
US (1) | US3817328A (en) |
CA (1) | CA992669A (en) |
FR (1) | FR2197183B1 (en) |
GB (1) | GB1429989A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2322937A (en) * | 1997-03-07 | 1998-09-09 | Aea Technology Plc | Multiphase fluid monitor |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE28963E (en) * | 1973-11-28 | 1976-09-14 | Continental Oil Company | Determination of residual oil in a formation |
US3993903A (en) * | 1975-03-31 | 1976-11-23 | Chevron Research Company | Low-cost but accurate radioactive logging for determining gas saturation in a reservoir |
US3993904A (en) * | 1975-03-31 | 1976-11-23 | Chevron Research Company | Low-cost but accurate radioactive logging for determining water saturations in a reservoir |
US3993902A (en) * | 1975-03-31 | 1976-11-23 | Chevron Research Company | Radioactive logging for determining oil saturation in a reservoir |
US4052893A (en) * | 1976-09-29 | 1977-10-11 | Standard Oil Company (Indiana) | Measuring reservoir oil saturation |
US4076980A (en) * | 1976-10-26 | 1978-02-28 | Texaco Inc. | Radioactive well logging to measure earth formation fluid permeability by electrohydraulic induced flow of radiation activated fluids |
US4102396A (en) * | 1977-06-23 | 1978-07-25 | Union Oil Company Of California | Determining residual oil saturation following flooding |
USRE31122E (en) * | 1978-09-29 | 1983-01-11 | Dresser Industries, Inc. | Method for ascertaining optimum location for well stimulation and/or perforation |
US4187908A (en) * | 1978-09-29 | 1980-02-12 | Dresser Industries, Inc. | Method for ascertaining optimum location for well stimulation and/or perforation |
US4338664A (en) * | 1980-05-19 | 1982-07-06 | Schlumberger Technology Corporation | Method of evaluating formations traversed by a borehole |
US4492864A (en) * | 1981-07-31 | 1985-01-08 | Texaco Inc. | Neutron well logging |
US4482016A (en) * | 1983-11-17 | 1984-11-13 | Shell Oil Company | Acidizing with chemically heated weak acid |
US5219518A (en) * | 1989-10-02 | 1993-06-15 | Schlumberger Technology Corporation | Nuclear oxygen activation method and apparatus for detecting and quantifying water flow |
US5094808A (en) * | 1989-12-20 | 1992-03-10 | Schlumberger Technology Corporation | Oxygen activation downhole tool |
USRE38052E1 (en) | 1992-05-01 | 2003-04-01 | Sensor Dynamics, Limited | Sensing apparatus for sensing pressure or temperature in oil wells, including transmitter relaying pressure or temperature information to a remote control point |
GB9324334D0 (en) * | 1993-11-26 | 1994-01-12 | Sensor Dynamics Ltd | Apparatus for the remote measurement of physical parameters |
US6532839B1 (en) * | 1996-03-29 | 2003-03-18 | Sensor Dynamics Ltd. | Apparatus for the remote measurement of physical parameters |
EP2348337B1 (en) * | 2010-01-14 | 2014-04-16 | Services Pétroliers Schlumberger | Corrected porosity measurements of underground formations |
US8528635B2 (en) * | 2010-05-13 | 2013-09-10 | Schlumberger Technology Corporation | Tool to determine formation fluid movement |
RU2537521C2 (en) * | 2011-02-28 | 2015-01-10 | Министерство образования и науки РФ Государственное образовательное учреждение высшего профессионального образования "Уральский государственный горный университет" | Method of selecting gas hydrate-saturated reservoirs in well logs |
WO2014081436A1 (en) * | 2012-11-26 | 2014-05-30 | Halliburton Energy Services, Inc. | Method of determining a value indicative of fracture quality |
US11209569B2 (en) | 2019-07-02 | 2021-12-28 | Weatherford Technology Holdings, Llc | Neutron time of flight wellbore logging |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3282095A (en) * | 1963-09-03 | 1966-11-01 | Pan American Petroleum Corp | Logging oil saturation in reservoir |
US3334688A (en) * | 1964-04-13 | 1967-08-08 | Exxon Production Research Co | Miscible displacement process using modified alcohol banks |
US3508052A (en) * | 1964-12-18 | 1970-04-21 | Chevron Res | Neutron absorption logging with thermal neutron-capture gamma rays having energies over 2.2 mev. |
US3562523A (en) * | 1967-04-26 | 1971-02-09 | Shell Oil Co | Method for determining residual oil content of a formation using thermal neutron decay measurements |
US3465151A (en) * | 1967-10-24 | 1969-09-02 | Dresser Ind | Method and apparatus for oxygen activation well logging |
US3504744A (en) * | 1968-07-15 | 1970-04-07 | Marathon Oil Co | Production of crude oil using micellar dispersions |
US3631245A (en) * | 1968-12-23 | 1971-12-28 | Shell Oil Co | Neutron method for determining residual oil-phase fluid concentration |
-
1972
- 1972-08-21 US US00282618A patent/US3817328A/en not_active Expired - Lifetime
-
1973
- 1973-08-03 CA CA178,080A patent/CA992669A/en not_active Expired
- 1973-08-08 GB GB3767773A patent/GB1429989A/en not_active Expired
- 1973-08-13 FR FR7329532A patent/FR2197183B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2322937A (en) * | 1997-03-07 | 1998-09-09 | Aea Technology Plc | Multiphase fluid monitor |
GB2322937B (en) * | 1997-03-07 | 2001-01-17 | Aea Technology Plc | Multiphase fluid monitor |
Also Published As
Publication number | Publication date |
---|---|
FR2197183A1 (en) | 1974-03-22 |
US3817328A (en) | 1974-06-18 |
CA992669A (en) | 1976-07-06 |
FR2197183B1 (en) | 1977-05-13 |
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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 |
Effective date: 19920808 |