GB2113385B - Method and apparatus for measuring thermal neutron characteristics - Google Patents

Method and apparatus for measuring thermal neutron characteristics

Info

Publication number: GB2113385B
Authority: GB; United Kingdom
Prior art keywords: thermal neutron; measuring thermal; neutron characteristics; measuring; thermal
Prior art date: 1978-10-26
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

GB08228823A

Other versions

GB2113385A (en

Inventor

Larry A Jacobson

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 Ltd USA

Original Assignee

Schlumberger Ltd USA

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.)

1978-10-26

Filing date

1982-10-08

Publication date

1983-12-21

1978-10-26 Priority claimed from US05/955,175 external-priority patent/US4223218A/en

1978-10-26 Priority claimed from US05/955,176 external-priority patent/US4224516A/en

1982-10-08 Application filed by Schlumberger Ltd USA filed Critical Schlumberger Ltd USA

1983-08-03 Publication of GB2113385A publication Critical patent/GB2113385A/en

1983-12-21 Application granted granted Critical

1983-12-21 Publication of GB2113385B publication Critical patent/GB2113385B/en

Status Expired legal-status Critical Current

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)
Measurement Of Radiation (AREA)
Analysing Materials By The Use Of Radiation (AREA)

GB08228823A 1978-10-26 1982-10-08 Method and apparatus for measuring thermal neutron characteristics Expired GB2113385B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/955,175 US4223218A (en)	1978-10-26	1978-10-26	Methods and apparatus for optimizing measurements of thermal neutron decay characteristics
US05/955,176 US4224516A (en)	1978-10-26	1978-10-26	Methods and apparatus for measuring thermal neutron decay characteristics of earth formations

Publications (2)

Publication Number	Publication Date
GB2113385A GB2113385A (en)	1983-08-03
GB2113385B true GB2113385B (en)	1983-12-21

Family

ID=27130364

Family Applications (4)

Application Number	Title	Priority Date	Filing Date
GB7935429A Expired GB2036303B (en)	1978-10-26	1979-10-12	Method and apparatus for measuring thermal neutron characteristics
GB08228889A Expired GB2113386B (en)	1978-10-26	1982-10-08	Method and apparatus for measuring thermal neutron characteristics
GB08228823A Expired GB2113385B (en)	1978-10-26	1982-10-08	Method and apparatus for measuring thermal neutron characteristics
GB08228890A Expired GB2113387B (en)	1978-10-26	1982-10-08	Method of measuring thermal neutron characteristics

Family Applications Before (2)

Application Number	Title	Priority Date	Filing Date
GB7935429A Expired GB2036303B (en)	1978-10-26	1979-10-12	Method and apparatus for measuring thermal neutron characteristics
GB08228889A Expired GB2113386B (en)	1978-10-26	1982-10-08	Method and apparatus for measuring thermal neutron characteristics

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
GB08228890A Expired GB2113387B (en)	1978-10-26	1982-10-08	Method of measuring thermal neutron characteristics

Country Status (11)

Country	Link
AU (1)	AU532895B2 (en)
DE (1)	DE2941535A1 (en)
EG (1)	EG14646A (en)
ES (1)	ES8103385A1 (en)
FR (1)	FR2440004A1 (en)
GB (4)	GB2036303B (en)
IE (1)	IE49620B1 (en)
IT (1)	IT1125588B (en)
MY (1)	MY8500178A (en)
NL (1)	NL7907391A (en)
NO (1)	NO793185L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1165017A (en) *	1980-08-28	1984-04-03	Harold E. Peelman	System for simultaneous measurement of borehole and formation neutron lifetimes
CA1162660A (en) *	1980-08-28	1984-02-21	Harry D. Smith	Method for simultaneous measurement of borehole and formation neutron lifetimes
CA1162659A (en) *	1980-08-28	1984-02-21	Ward E. Schultz	Method for simultaneous measurement of borehole and formation neutron lifetimes employing iterative fitting
US4445033A (en) *	1981-09-14	1984-04-24	Schlumberger Technology Corporation	Methods and apparatus for environmental correction of thermal neutron logs
GB8331914D0 (en) *	1983-11-30	1984-01-04	Atomic Energy Authority Uk	Inspection of buried pipelines
US4712007A (en) *	1985-04-01	1987-12-08	S.I.E., Inc.	Pulsed neutron logging method using cumulative count curves
CN115788421B (en) *	2023-02-14	2023-05-09	山东交通学院	Integrated natural gamma energy spectrum logging instrument

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL70135C (en) *	1946-12-04	1952-01-15	Philips Nv
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
US3379882A (en) *	1967-03-16	1968-04-23	Dresser Ind	Method and apparatus for neutron well logging based on the lifetime of neutrons in the formations
US3890501A (en) *	1973-05-01	1975-06-17	Schlumberger Technology Corp	Neutron logging reliability techniques and apparatus

1979
- 1979-09-28 IE IE1847/79A patent/IE49620B1/en unknown
- 1979-10-04 NO NO793185A patent/NO793185L/en unknown
- 1979-10-05 NL NL7907391A patent/NL7907391A/en not_active Application Discontinuation
- 1979-10-08 AU AU51555/79A patent/AU532895B2/en not_active Ceased
- 1979-10-12 GB GB7935429A patent/GB2036303B/en not_active Expired
- 1979-10-13 DE DE19792941535 patent/DE2941535A1/en not_active Withdrawn
- 1979-10-22 FR FR7926185A patent/FR2440004A1/en active Granted
- 1979-10-23 EG EG79645A patent/EG14646A/en active
- 1979-10-24 IT IT26758/79A patent/IT1125588B/en active
- 1979-10-25 ES ES485366A patent/ES8103385A1/en not_active Expired
1982
- 1982-10-08 GB GB08228889A patent/GB2113386B/en not_active Expired
- 1982-10-08 GB GB08228823A patent/GB2113385B/en not_active Expired
- 1982-10-08 GB GB08228890A patent/GB2113387B/en not_active Expired
1985
- 1985-12-30 MY MY178/85A patent/MY8500178A/en unknown

Also Published As

Publication number	Publication date
FR2440004A1 (en)	1980-05-23
GB2113386B (en)	1983-12-21
GB2036303A (en)	1980-06-25
AU5155579A (en)	1980-05-01
GB2113387B (en)	1983-12-21
IT7926758A0 (en)	1979-10-24
NL7907391A (en)	1980-04-29
ES485366A0 (en)	1981-02-16
GB2113386A (en)	1983-08-03
GB2036303B (en)	1983-08-17
NO793185L (en)	1980-04-29
AU532895B2 (en)	1983-10-20
MY8500178A (en)	1985-12-31
DE2941535A1 (en)	1980-05-08
ES8103385A1 (en)	1981-02-16
IE791847L (en)	1980-04-26
GB2113387A (en)	1983-08-03
IT1125588B (en)	1986-05-14
GB2113385A (en)	1983-08-03
FR2440004B1 (en)	1984-12-21
IE49620B1 (en)	1985-11-13
EG14646A (en)	1985-03-31

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Legal Events

Date	Code	Title	Description
1999-11-03	PE20	Patent expired after termination of 20 years	Effective date: 19991011