GB2301442B - A borehole measurement system employing electromagnetic wave propagation - Google Patents

A borehole measurement system employing electromagnetic wave propagation

Info

Publication number: GB2301442B
Authority: GB; United Kingdom
Prior art keywords: electromagnetic wave; measurement system; wave propagation; system employing; employing electromagnetic
Prior art date: 1994-03-11
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 - Lifetime

Application number

GB9618314A

Other versions

GB2301442A (en

GB2301442A8 (en

GB9618314D0 (en

Inventor

Larry W Thompson

Macmillan Morgan Wisler

Wallace Harold Meyer Jr

Jian-Qun Wu

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.)

Baker Hughes Holdings LLC

Original Assignee

Baker Hughes Inc

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.)

1994-03-11

Filing date

1995-03-07

Publication date

1998-10-07

1994-03-11 Priority claimed from US08/212,194 external-priority patent/US5469062A/en

1994-03-14 Priority claimed from US08/214,916 external-priority patent/US5811972A/en

1994-03-14 Priority claimed from US08/214,343 external-priority patent/US5574374A/en

1995-03-07 Priority to GB9810146A priority Critical patent/GB2322199B/en

1995-03-07 Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc

1995-03-07 Priority to GB9810658A priority patent/GB2322201B/en

1995-03-07 Priority to GB9810145A priority patent/GB2322198B/en

1995-03-07 Priority to GB9810264A priority patent/GB2322200B/en

1995-03-07 Priority claimed from PCT/US1995/002814 external-priority patent/WO1995024663A1/en

1996-10-16 Publication of GB9618314D0 publication Critical patent/GB9618314D0/en

1996-12-04 Publication of GB2301442A publication Critical patent/GB2301442A/en

1997-06-23 Publication of GB2301442A8 publication Critical patent/GB2301442A8/en

1998-10-07 Publication of GB2301442B publication Critical patent/GB2301442B/en

1998-10-07 Application granted granted Critical

2015-03-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/30—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with electromagnetic waves

Landscapes

Physics & Mathematics (AREA)
Life Sciences & Earth Sciences (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Environmental & Geological Engineering (AREA)
Geology (AREA)
Remote Sensing (AREA)
General Life Sciences & Earth Sciences (AREA)
General Physics & Mathematics (AREA)
Geophysics (AREA)
Geophysics And Detection Of Objects (AREA)

GB9618314A 1994-03-11 1995-03-07 A borehole measurement system employing electromagnetic wave propagation Expired - Lifetime GB2301442B (en)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
GB9810264A GB2322200B (en)	1994-03-11	1995-03-07	A borehole measurement system employing electromagnetic wave propagation
GB9810145A GB2322198B (en)	1994-03-11	1995-03-07	A borehole measurement system employing electromagnetic wave propagation
GB9810146A GB2322199B (en)	1994-03-11	1995-03-07	A borehole measurement system employing electromagnetic wave propagation
GB9810658A GB2322201B (en)	1994-03-11	1995-03-07	A borehole measurement system employing electromagnetic wave propagation

Applications Claiming Priority (7)

Application Number	Priority Date	Filing Date	Title
US08/212,194 US5469062A (en)	1994-03-11	1994-03-11	Multiple depths and frequencies for simultaneous inversion of electromagnetic borehole measurements
US21226994A	1994-03-14	1994-03-14
US21210294A	1994-03-14	1994-03-14
US21225794A	1994-03-14	1994-03-14
US08/214,343 US5574374A (en)	1991-04-29	1994-03-14	Method and apparatus for interrogating a borehole and surrounding formation utilizing digitally controlled oscillators
US08/214,916 US5811972A (en)	1991-04-29	1994-03-14	Method and apparatus for determining influence of mutual magnetic coupling in electromagnetic propagation tools
PCT/US1995/002814 WO1995024663A1 (en)	1994-03-11	1995-03-07	A borehole measurement system employing electromagnetic wave propagation

Publications (4)

Publication Number	Publication Date
GB9618314D0 GB9618314D0 (en)	1996-10-16
GB2301442A GB2301442A (en)	1996-12-04
GB2301442A8 GB2301442A8 (en)	1997-06-23
GB2301442B true GB2301442B (en)	1998-10-07

Family

ID=27559042

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9618314A Expired - Lifetime GB2301442B (en)	1994-03-11	1995-03-07	A borehole measurement system employing electromagnetic wave propagation

Country Status (1)

Country	Link
GB (1)	GB2301442B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3891916A (en) *	1973-08-27	1975-06-24	Texaco Inc	Dual radio frequency measurement of dielectric constant and resistivity of borehole media
WO1984001439A1 (en) *	1982-09-30	1984-04-12	Macleod Lab Inc	Apparatus and method for logging wells while drilling
US5187661A (en) *	1989-07-21	1993-02-16	Halliburton Logging Services, Inc.	Method of determining invaded formation properties including resistivity dielectric constant and zone diameter

1995
- 1995-03-07 GB GB9618314A patent/GB2301442B/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3891916A (en) *	1973-08-27	1975-06-24	Texaco Inc	Dual radio frequency measurement of dielectric constant and resistivity of borehole media
WO1984001439A1 (en) *	1982-09-30	1984-04-12	Macleod Lab Inc	Apparatus and method for logging wells while drilling
US5187661A (en) *	1989-07-21	1993-02-16	Halliburton Logging Services, Inc.	Method of determining invaded formation properties including resistivity dielectric constant and zone diameter

Also Published As

Publication number	Publication date
GB2301442A (en)	1996-12-04
GB2301442A8 (en)	1997-06-23
GB9618314D0 (en)	1996-10-16

Publication	Publication Date	Title
EP0770857A3 (en)	1997-10-08	Electromagnetic flowmeter
EP0748576A4 (en)	2001-10-17	Variable geometry electromagnetic transducer
IL122469A0 (en)	1998-06-15	Electromagnetic antenna
GB9401361D0 (en)	1994-03-23	A radar system
GB2318641B (en)	2000-08-16	Measuring borehole geometry
EP0990125A4 (en)	2001-01-17	Electromagnetic flowmeter
HK1023901A1 (en)	2000-09-22	Thin electromagnetic transducer
EP0776474A4 (en)	1999-06-30	Electromagnetic acoustic transducer
EP0730139A3 (en)	1997-02-26	Electromagnetic flowmeter
GB2332527B (en)	2002-10-30	Electromagnetic flowmeter
IL122429A0 (en)	1998-06-15	Electromagnetic wave detector
IL119295A0 (en)	1996-12-05	Microwave antenna element
ID21618A (en)	1999-07-01	ELECTROMAGNETIC WAVE / RECEIVER
GB9521152D0 (en)	1995-12-20	Electromagnetic wave transmission device
GB2322200B (en)	1998-10-07	A borehole measurement system employing electromagnetic wave propagation
SG43379A1 (en)	1997-10-17	Electromagnetically shielded building
EP0767360A3 (en)	1997-12-17	Microwave thermal trace flowmeter
PL295717A1 (en)	1993-04-19	Electromagnetic transducer
GB2322199B (en)	1998-10-07	A borehole measurement system employing electromagnetic wave propagation
GB2332526B (en)	2002-12-31	Electromagnetic flowmeter
GB9608668D0 (en)	1996-07-03	Electromagnetic flowmeters
AU1981695A (en)	1995-09-25	A borehole measurement system employing electromagnetic wave propagation
GB2301442B (en)	1998-10-07	A borehole measurement system employing electromagnetic wave propagation
ZA9711232B (en)	1998-09-02	Reflection of electro-magnetic waves
KR970010439U (en)	1997-03-29	Microwave case coupling structure

Legal Events

Date	Code	Title	Description
2015-04-01	PE20	Patent expired after termination of 20 years	Expiry date: 20150306