GB2396018B - Directional electromagnetic measurements insensitive to dip and anisotropy - Google Patents

Directional electromagnetic measurements insensitive to dip and anisotropy

Info

Publication number: GB2396018B
Authority: GB; United Kingdom
Prior art keywords: anisotropy; dip; directional electromagnetic; electromagnetic measurements; measurements insensitive
Prior art date: 2001-09-26
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 - Fee Related

Application number

GB0404047A

Other versions

GB2396018A (en

GB0404047D0 (en

Inventor

Richard A Rosthal

Gerald N Minerbo

Dzevat Omeragic

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 Holdings Ltd

Original Assignee

Schlumberger Holdings 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.)

2001-09-26

Filing date

2002-08-23

Publication date

2004-11-17

2002-03-29 Priority claimed from US10/113,132 external-priority patent/US6969994B2/en

2002-08-23 Application filed by Schlumberger Holdings Ltd filed Critical Schlumberger Holdings Ltd

2004-03-31 Publication of GB0404047D0 publication Critical patent/GB0404047D0/en

2004-06-09 Publication of GB2396018A publication Critical patent/GB2396018A/en

2004-11-17 Application granted granted Critical

2004-11-17 Publication of GB2396018B publication Critical patent/GB2396018B/en

2022-08-23 Anticipated expiration legal-status Critical

Status Expired - Fee Related 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
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
- G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils

Landscapes

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

GB0404047A 2001-09-26 2002-08-23 Directional electromagnetic measurements insensitive to dip and anisotropy Expired - Fee Related GB2396018B (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US32527301P	2001-09-26	2001-09-26
US32527201P	2001-09-26	2001-09-26
US10/113,132 US6969994B2 (en)	2001-09-26	2002-03-29	Directional electromagnetic measurements insensitive to dip and anisotropy
GB0219637A GB2382659B (en)	2001-09-26	2002-08-23	Directional electromagnetic measurements insensitive to dip and anisotropy

Publications (3)

Publication Number	Publication Date
GB0404047D0 GB0404047D0 (en)	2004-03-31
GB2396018A GB2396018A (en)	2004-06-09
GB2396018B true GB2396018B (en)	2004-11-17

Family

ID=32303568

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0404047A Expired - Fee Related GB2396018B (en)	2001-09-26	2002-08-23	Directional electromagnetic measurements insensitive to dip and anisotropy

Country Status (1)

Country	Link
GB (1)	GB2396018B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7202670B2 (en) *	2003-08-08	2007-04-10	Schlumberger Technology Corporation	Method for characterizing a subsurface formation with a logging instrument disposed in a borehole penetrating the formation
US7536261B2 (en) *	2005-04-22	2009-05-19	Schlumberger Technology Corporation	Anti-symmetrized electromagnetic measurements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2354077A (en) *	1999-09-07	2001-03-14	Schlumberger Holdings	Evaluating the resistivity of earth formations surrounding a borehole

2002
- 2002-08-23 GB GB0404047A patent/GB2396018B/en not_active Expired - Fee Related

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2354077A (en) *	1999-09-07	2001-03-14	Schlumberger Holdings	Evaluating the resistivity of earth formations surrounding a borehole

Also Published As

Publication number	Publication date
GB2396018A (en)	2004-06-09
GB0404047D0 (en)	2004-03-31

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Legal Events

Date	Code	Title	Description
2018-04-25	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20170823