WO2008051743A3 - Methods and apparatus for subsurface geophysical exploration using joint inversion of steady-state and transient data - Google Patents

Methods and apparatus for subsurface geophysical exploration using joint inversion of steady-state and transient data Download PDF

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Publication number
WO2008051743A3
WO2008051743A3 PCT/US2007/081370 US2007081370W WO2008051743A3 WO 2008051743 A3 WO2008051743 A3 WO 2008051743A3 US 2007081370 W US2007081370 W US 2007081370W WO 2008051743 A3 WO2008051743 A3 WO 2008051743A3
Authority
WO
WIPO (PCT)
Prior art keywords
steady
state
methods
component
transient data
Prior art date
Application number
PCT/US2007/081370
Other languages
French (fr)
Other versions
WO2008051743A2 (en
Inventor
Michael D Watts
Original Assignee
Gsy Usa 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.)
Filing date
Publication date
Application filed by Gsy Usa Inc filed Critical Gsy Usa Inc
Priority to EP07854039.0A priority Critical patent/EP2082265B1/en
Publication of WO2008051743A2 publication Critical patent/WO2008051743A2/en
Publication of WO2008051743A3 publication Critical patent/WO2008051743A3/en
Priority to NO20092001A priority patent/NO20092001L/en

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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
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • 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
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/083—Controlled source electromagnetic [CSEM] surveying
    • 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
    • G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction

Abstract

Methods and apparatus are provided for controlled source electromagnetic surveying. In particular, a time-varying electromagnetic signal is transmitted at a first location, and an electromagnetic signal responsive to the transmitted signal is received at a second location, wherein the received signal includes a transient response component and a steady-state component. The received signal is continuously recorded during a predetermined time interval, and data corresponding to the transient response component and the steady-state component are extracted from the received signal. The transient response data and the steady-state response data are jointly inverted to identify a subsurface feature, such as resistivity.
PCT/US2007/081370 2006-10-24 2007-10-15 Methods and apparatus for subsurface geophysical exploration using joint inversion of steady-state and transient data WO2008051743A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07854039.0A EP2082265B1 (en) 2006-10-24 2007-10-15 Methods and apparatus for subsurface geophysical exploration using joint inversion of steady-state and transient data
NO20092001A NO20092001L (en) 2006-10-24 2009-05-22 Methods and apparatus for soil geophysical survey using joint inversion of stationary and transient data

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US86272706P 2006-10-24 2006-10-24
US60/862,727 2006-10-24
US11/563,004 2006-11-23
US11/563,004 US7504829B2 (en) 2006-10-24 2006-11-23 Methods and apparatus for subsurface geophysical exploration using joint inversion of steady-state and transient data

Publications (2)

Publication Number Publication Date
WO2008051743A2 WO2008051743A2 (en) 2008-05-02
WO2008051743A3 true WO2008051743A3 (en) 2008-12-18

Family

ID=39317297

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/081370 WO2008051743A2 (en) 2006-10-24 2007-10-15 Methods and apparatus for subsurface geophysical exploration using joint inversion of steady-state and transient data

Country Status (4)

Country Link
US (1) US7504829B2 (en)
EP (1) EP2082265B1 (en)
NO (1) NO20092001L (en)
WO (1) WO2008051743A2 (en)

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US7796943B2 (en) * 2007-03-28 2010-09-14 Lockheed Martin Corporation Sub-surface communications system and method
US8901931B2 (en) * 2009-03-13 2014-12-02 Schlumberger Technology Corporation Electromagnetic surface-to-borehole look around systems and methods of monitoring in horizontal wells
US20120119743A1 (en) * 2009-06-19 2012-05-17 Johannes Maria Singer Multi-mode electromagnetic surveying
CA2793124A1 (en) * 2010-03-19 2011-09-22 Schlumberger Canada Limited Uncertainty estimation for large-scale nonlinear inverse problems using geometric sampling and covariance-free model compression
US20120010818A1 (en) * 2010-07-07 2012-01-12 Alexander Edward Kalish Collecting Control Source Electromagnetic Signals
US20120179372A1 (en) * 2010-07-22 2012-07-12 Alexander Edward Kalish Collecting Control Source Electromagnetic Signals
US10379255B2 (en) 2010-07-27 2019-08-13 Exxonmobil Upstream Research Company Inverting geophysical data for geological parameters or lithology
US9195783B2 (en) 2010-08-16 2015-11-24 Exxonmobil Upstream Research Company Reducing the dimensionality of the joint inversion problem
US9494711B2 (en) 2011-07-21 2016-11-15 Garrett M Leahy Adaptive weighting of geophysical data types in joint inversion
DE102012008037A1 (en) * 2012-04-17 2013-10-17 Klaus Ebinger Method for detecting objects
US9575205B2 (en) * 2013-01-17 2017-02-21 Pgs Geophysical As Uncertainty-based frequency-selected inversion of electromagnetic geophysical data
US10598807B2 (en) * 2014-02-18 2020-03-24 Pgs Geophysical As Correction of sea surface state
US20150301217A1 (en) * 2014-04-17 2015-10-22 Pgs Geophysical As Ultra-long electromagnetic source
US10274635B2 (en) * 2015-02-16 2019-04-30 Pgs Geophysical As Joint inversion of subsurface resistivity and noise parameters
CN106405665B (en) * 2016-11-18 2018-09-28 厦门大学 Transient electromagnetic conductivity inversion method based on DBIM
US10808526B2 (en) * 2018-10-16 2020-10-20 Halliburton Energy Services, Inc. Transmitter and receiver interface for downhole logging
CN112285786B (en) * 2020-10-15 2023-06-09 桂林电子科技大学 Method for improving exploration depth based on ultra-high density electrical equipment

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CA2144438C (en) 1993-07-21 2002-01-22 Kurt-M. Strack Method of determining formation resistivity utilizing combined measurements of inductive and galvanic logging instruments
US5770945A (en) 1996-06-26 1998-06-23 The Regents Of The University Of California Seafloor magnetotelluric system and method for oil exploration
GB9818875D0 (en) 1998-08-28 1998-10-21 Norske Stats Oljeselskap Method and apparatus for determining the nature of subterranean reservoirs
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Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
EP2082265A2 (en) 2009-07-29
US20080094066A1 (en) 2008-04-24
NO20092001L (en) 2009-05-22
WO2008051743A2 (en) 2008-05-02
US7504829B2 (en) 2009-03-17
EP2082265B1 (en) 2015-03-18

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