RU2009123488A - METHOD AND DEVICE FOR PROCESSING ELECTROMAGNETIC EXPLORATION DATA - Google Patents
METHOD AND DEVICE FOR PROCESSING ELECTROMAGNETIC EXPLORATION DATA Download PDFInfo
- Publication number
- RU2009123488A RU2009123488A RU2009123488/28A RU2009123488A RU2009123488A RU 2009123488 A RU2009123488 A RU 2009123488A RU 2009123488/28 A RU2009123488/28 A RU 2009123488/28A RU 2009123488 A RU2009123488 A RU 2009123488A RU 2009123488 A RU2009123488 A RU 2009123488A
- Authority
- RU
- Russia
- Prior art keywords
- source
- receiver
- water
- reflection
- contribution
- Prior art date
Links
Classifications
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- 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
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
1. Способ обработки данных электромагнитной разведки, относящихся к области геологической среды, покрытой водой, и полученных, по меньшей мере, одним приемником электромагнитного поля в виде отклика на, по меньшей мере, один источник электромагнитного поля, при этом способ содержит этапы, состоящие в том, что обеспечивают данные электромагнитной разведки и исключают из данных электромагнитной разведки вклад атмосферной волны, содержащий первую составляющую, распространяющуюся без отражения от, по меньшей мере, одного источника к, по меньшей мере, одному приемнику, и, по меньшей мере, одну вторую составляющую, путь распространения которой от, по меньшей мере, одного источника к, по меньшей мере, одному приемнику содержит, по меньшей мере, один вертикальный участок около, по меньшей мере, одного из, по меньшей мере, одного источника и около, по меньшей мере, одного приемника, и которая содержит, по меньшей мере, одно отражение от, по меньшей мере, чего-то одного из водной поверхности и границы раздела между областью и водой. ! 2. Способ по п.1, в котором вклад атмосферной волны исключают вычитанием. ! 3. Способ по п.1, в котором, по меньшей мере, одна вторая составляющая содержит множество составляющих, имеющих пути распространения около, по меньшей мере, одного источника с разным числом отражений. ! 4. Способ по п.3, в котором вклад атмосферной волны пропорционален следующей величине: ! , ! где означает комплексное волновое число для воды с удельной электрической проводимостью σ1, ω означает круговую частоту, μ0 означает магнитную проницаемость вакуума, zb означает глубину моря, zs означает глубину источника, Rs= означает коэф� 1. A method for processing electromagnetic reconnaissance data related to a geological environment covered by water and obtained by at least one electromagnetic field receiver in the form of a response to at least one electromagnetic field source, the method comprising the steps of that provide electromagnetic intelligence data and exclude from the electromagnetic intelligence data the contribution of the atmospheric wave containing the first component propagating without reflection from at least one source k, at least at least one receiver, and at least one second component, the propagation path of which from at least one source to at least one receiver contains at least one vertical section near at least one of at least one source and near at least one receiver, and which contains at least one reflection from at least one of the water surface and the interface between the region and the water. ! 2. The method according to claim 1, in which the contribution of the atmospheric wave is excluded by subtraction. ! 3. The method according to claim 1, in which at least one second component contains many components having propagation paths near at least one source with a different number of reflections. ! 4. The method according to claim 3, in which the contribution of the atmospheric wave is proportional to the following value:! ! where is the complex wave number for water with electrical conductivity σ1, ω is the circular frequency, μ0 is the magnetic permeability of the vacuum, zb is the depth of the sea, zs is the depth of the source, Rs = is the coefficient
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0623279.7 | 2006-11-22 | ||
GBGB0623279.7A GB0623279D0 (en) | 2006-11-22 | 2006-11-22 | Air wave modeling for MCSEM/SBL surveying |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2009123488A true RU2009123488A (en) | 2010-12-27 |
RU2423728C2 RU2423728C2 (en) | 2011-07-10 |
Family
ID=37636313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2009123488/28A RU2423728C2 (en) | 2006-11-22 | 2007-11-21 | Method and device for processing electromagnetic exploration data |
Country Status (4)
Country | Link |
---|---|
GB (2) | GB0623279D0 (en) |
NO (1) | NO343082B1 (en) |
RU (1) | RU2423728C2 (en) |
WO (1) | WO2008062024A2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0900906D0 (en) | 2009-01-20 | 2009-03-04 | Schlieffers Jorg | Removing or reducing the airwave in CSEM data by using weighted field differences |
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 |
EP2715603A4 (en) | 2011-06-02 | 2016-07-13 | Exxonmobil Upstream Res Co | Joint inversion with unknown lithology |
EP2721478A4 (en) | 2011-06-17 | 2015-12-02 | Exxonmobil Upstream Res Co | Domain freezing in joint inversion |
EP2734866B1 (en) | 2011-07-21 | 2020-04-08 | Exxonmobil Upstream Research Company | Adaptive weighting of geophysical data types in joint inversion |
US10591638B2 (en) | 2013-03-06 | 2020-03-17 | Exxonmobil Upstream Research Company | Inversion of geophysical data on computer system having parallel processors |
US9846255B2 (en) | 2013-04-22 | 2017-12-19 | Exxonmobil Upstream Research Company | Reverse semi-airborne electromagnetic prospecting |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2385923B (en) * | 2002-05-24 | 2004-07-28 | Statoil Asa | System and method for electromagnetic wavefield resolution |
BRPI0411967A (en) * | 2003-06-26 | 2006-08-29 | Exxonmobil Upstream Res Co | method for air wave effect removal of offshore frequency domain controlled source electromagnetic data |
GB2412740B (en) * | 2004-04-03 | 2008-09-17 | Statoil Asa | Calibration filters |
GB2415511B (en) * | 2004-06-26 | 2008-09-24 | Statoil Asa | Processing electromagnetic data |
-
2006
- 2006-11-22 GB GBGB0623279.7A patent/GB0623279D0/en not_active Ceased
-
2007
- 2007-11-21 RU RU2009123488/28A patent/RU2423728C2/en active
- 2007-11-21 GB GB0909891A patent/GB2458394B8/en not_active Expired - Fee Related
- 2007-11-21 WO PCT/EP2007/062659 patent/WO2008062024A2/en active Application Filing
-
2009
- 2009-06-19 NO NO20092363A patent/NO343082B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB0909891D0 (en) | 2009-07-22 |
NO20092363L (en) | 2009-08-18 |
GB2458394A (en) | 2009-09-23 |
WO2008062024A2 (en) | 2008-05-29 |
GB2458394B (en) | 2011-03-23 |
GB0623279D0 (en) | 2007-01-03 |
WO2008062024A3 (en) | 2008-11-27 |
GB2458394B8 (en) | 2013-08-07 |
GB2458394A8 (en) | 2013-08-07 |
NO343082B1 (en) | 2018-10-29 |
RU2423728C2 (en) | 2011-07-10 |
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Legal Events
Date | Code | Title | Description |
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TK4A | Correction to the publication in the bulletin (patent) |
Free format text: AMENDMENT TO CHAPTER -FG4A- IN JOURNAL: 19-2011 FOR TAG: (72) |
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PD4A | Correction of name of patent owner | ||
PC41 | Official registration of the transfer of exclusive right |
Effective date: 20140820 |