CA1019470A - Neutron logging reliability techniques and apparatus - Google Patents

Neutron logging reliability techniques and apparatus

Info

Publication number
CA1019470A
CA1019470A CA197,804A CA197804A CA1019470A CA 1019470 A CA1019470 A CA 1019470A CA 197804 A CA197804 A CA 197804A CA 1019470 A CA1019470 A CA 1019470A
Authority
CA
Canada
Prior art keywords
neutron logging
reliability techniques
logging reliability
techniques
neutron
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
Application number
CA197,804A
Other languages
English (en)
Inventor
Charles W. Johnstone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada 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 Canada Ltd filed Critical Schlumberger Canada Ltd
Application granted granted Critical
Publication of CA1019470A publication Critical patent/CA1019470A/en
Expired legal-status Critical Current

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
    • G01V5/108—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 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 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
    • G01V5/101—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 the secondary Y-rays produced in the surrounding layers of the bore hole
    • G01V5/102—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 the secondary Y-rays produced in the surrounding layers of the bore hole the neutron source being of the pulsed type
CA197,804A 1973-05-01 1974-04-18 Neutron logging reliability techniques and apparatus Expired CA1019470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356150A US3890501A (en) 1973-05-01 1973-05-01 Neutron logging reliability techniques and apparatus

Publications (1)

Publication Number Publication Date
CA1019470A true CA1019470A (en) 1977-10-18

Family

ID=23400344

Family Applications (1)

Application Number Title Priority Date Filing Date
CA197,804A Expired CA1019470A (en) 1973-05-01 1974-04-18 Neutron logging reliability techniques and apparatus

Country Status (13)

Country Link
US (1) US3890501A (no)
AR (1) AR208665A1 (no)
BR (1) BR7403533D0 (no)
CA (1) CA1019470A (no)
DE (1) DE2420776C2 (no)
EG (1) EG13442A (no)
FR (1) FR2228226B1 (no)
GB (1) GB1470568A (no)
IT (1) IT1010285B (no)
MX (1) MX3204E (no)
NO (1) NO142370C (no)
OA (1) OA04702A (no)
SU (1) SU847948A3 (no)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031367A (en) * 1975-03-31 1977-06-21 Schlumberger Technology Corporation Methods and apparatus for pulse height analyzer offset control
US4267447A (en) * 1978-10-26 1981-05-12 Schlumberger Technology Corp. Methods and apparatus for measuring thermal neutron decay characteristics of earth formations
US4224516A (en) * 1978-10-26 1980-09-23 Schlumberger Technology Corporation Methods and apparatus for measuring thermal neutron decay characteristics of earth formations
US4292518A (en) * 1978-10-26 1981-09-29 Schlumberger Technology Corp. Methods and apparatus for measuring thermal neutron decay characteristics of earth formations
IE49620B1 (en) * 1978-10-26 1985-11-13 Schlumberger Ltd Method and apparatus for measuring thermal neutron characteristics
US4445033A (en) * 1981-09-14 1984-04-24 Schlumberger Technology Corporation Methods and apparatus for environmental correction of thermal neutron logs
US4712007A (en) * 1985-04-01 1987-12-08 S.I.E., Inc. Pulsed neutron logging method using cumulative count curves
US4866607A (en) * 1985-05-06 1989-09-12 Halliburton Company Self-contained downhole gauge system
US4663628A (en) * 1985-05-06 1987-05-05 Halliburton Company Method of sampling environmental conditions with a self-contained downhole gauge system
US4709234A (en) * 1985-05-06 1987-11-24 Halliburton Company Power-conserving self-contained downhole gauge system
US4665398A (en) * 1985-05-06 1987-05-12 Halliburton Company Method of sampling and recording information pertaining to a physical condition detected in a well bore
US4883956A (en) * 1985-12-23 1989-11-28 Schlumberger Technology Corporation Methods and apparatus for gamma-ray spectroscopy and like measurements
US4926044A (en) * 1986-01-31 1990-05-15 Schlumberger Technology Corporation Thermal decay time logging method and apparatus
US4947040A (en) * 1989-07-14 1990-08-07 Schlumberger Technology Corporation Thermal decay time logging method and tool
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
US7088097B2 (en) * 2004-12-31 2006-08-08 Kjt Enterprises, Inc. Method for fitting a sum of exponentials to experimental data by linearization using a numerical integration approximation, and its application to well log data
US9869791B2 (en) 2015-06-17 2018-01-16 Baker Hughes, A Ge Company, Llc Measurement of downhole radiation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061725A (en) * 1958-03-03 1962-10-30 California Research Corp Comparison logging of geologic formation constituents
US3373280A (en) * 1963-12-18 1968-03-12 Mobil Oil Corp Pulsed radioactive well logging method for measurement of porosity and salinity
US3483376A (en) * 1966-08-03 1969-12-09 Schlumberger Technology Corp Two neutron detector earth formation porosity logging technique
US3566116A (en) * 1966-11-08 1971-02-23 Schlumberger Technology Corp Method and apparatus for measuring neutron characteristics of a material surrounding a well bore
US3509342A (en) * 1966-12-08 1970-04-28 Schlumberger Technology Corp Two detector pulsed neutron logging tool
US3546512A (en) * 1967-02-13 1970-12-08 Schlumberger Technology Corp Neutron generator including an ion source with a massive ferromagnetic probe electrode and a permanent magnet-electrode
US3609366A (en) * 1968-11-01 1971-09-28 Schlumberger Technology Corp Systems for neutron decay time well logging
US3662179A (en) * 1969-04-25 1972-05-09 Schlumberger Technology Corp Pulse neutron logging tool control and transmission system

Also Published As

Publication number Publication date
MX3204E (es) 1980-07-04
AR208665A1 (es) 1977-02-28
EG13442A (en) 1983-03-31
SU847948A3 (ru) 1981-07-15
FR2228226B1 (no) 1976-10-15
GB1470568A (en) 1977-04-14
FR2228226A1 (no) 1974-11-29
DE2420776C2 (de) 1984-02-23
AU6800174A (en) 1975-10-23
NO741470L (no) 1974-11-04
US3890501A (en) 1975-06-17
NO142370B (no) 1980-04-28
DE2420776A1 (de) 1974-12-05
NO142370C (no) 1980-08-13
BR7403533D0 (pt) 1974-12-03
OA04702A (fr) 1980-08-31
IT1010285B (it) 1977-01-10

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