ID20030A - Metode seismik yang memiliki sumber getaran berketepatan tinggi dengan pengiriman sumber - Google Patents

Metode seismik yang memiliki sumber getaran berketepatan tinggi dengan pengiriman sumber

Info

Publication number
ID20030A
ID20030A IDW980027A ID980027A ID20030A ID 20030 A ID20030 A ID 20030A ID W980027 A IDW980027 A ID W980027A ID 980027 A ID980027 A ID 980027A ID 20030 A ID20030 A ID 20030A
Authority
ID
Indonesia
Prior art keywords
source
high accurate
accurate vibration
delivery
seismic methods
Prior art date
Application number
IDW980027A
Other languages
English (en)
Inventor
K Paul Allen
John J Sallas
Denis Corrigan
Original Assignee
Mobil Oil Company Cs
Atlantic Richfield Co
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 Mobil Oil Company Cs, Atlantic Richfield Co filed Critical Mobil Oil Company Cs
Publication of ID20030A publication Critical patent/ID20030A/id

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
    • G01V1/37—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy specially adapted for seismic systems using continuous agitation of the ground, e.g. using pulse compression of frequency swept signals for enhancement of received signals
    • G01V1/375—Correlating received seismic signals with the emitted source signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/10—Aspects of acoustic signal generation or detection
    • G01V2210/12—Signal generation
    • G01V2210/127—Cooperating multiple sources
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/20—Trace signal pre-filtering to select, remove or transform specific events or signal components, i.e. trace-in/trace-out
    • G01V2210/26—Modulation or demodulation, e.g. for continuous sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
IDW980027A 1996-09-20 1997-09-19 Metode seismik yang memiliki sumber getaran berketepatan tinggi dengan pengiriman sumber ID20030A (id)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/717,176 US5721710A (en) 1995-09-29 1996-09-20 High fidelity vibratory source seismic method with source separation
PCT/US1997/017001 WO1998012578A1 (en) 1996-09-20 1997-09-19 High fidelity vibratory source seismic method with source separation

Publications (1)

Publication Number Publication Date
ID20030A true ID20030A (id) 1998-09-10

Family

ID=24881006

Family Applications (1)

Application Number Title Priority Date Filing Date
IDW980027A ID20030A (id) 1996-09-20 1997-09-19 Metode seismik yang memiliki sumber getaran berketepatan tinggi dengan pengiriman sumber

Country Status (12)

Country Link
US (1) US5721710A (id)
EP (1) EP0927369B1 (id)
CN (1) CN1133882C (id)
AR (1) AR008461A1 (id)
BR (1) BR9706780A (id)
CA (1) CA2237408C (id)
DE (1) DE69728411T2 (id)
DZ (1) DZ2310A1 (id)
ID (1) ID20030A (id)
NO (1) NO319308B1 (id)
PE (1) PE103098A1 (id)
WO (1) WO1998012578A1 (id)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023443A (en) * 1997-01-24 2000-02-08 Baker Hughes Incorporated Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries
US6427124B1 (en) 1997-01-24 2002-07-30 Baker Hughes Incorporated Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries
EP0953179B1 (en) * 1997-11-14 2009-04-15 Western Atlas International, Inc. Seismic data acquisition and processing using non-linear distortion in a groundforce signal
US6522974B2 (en) * 2000-03-01 2003-02-18 Westerngeco, L.L.C. Method for vibrator sweep analysis and synthesis
US6035719A (en) * 1998-08-05 2000-03-14 Kabushiki Kaisha Alpha Tsushin Noise/vibration measuring and disclosing system
GB9927395D0 (en) * 1999-05-19 2000-01-19 Schlumberger Holdings Improved seismic data acquisition method
US6327537B1 (en) 1999-07-19 2001-12-04 Luc T. Ikelle Multi-shooting approach to seismic modeling and acquisition
GB2359363B (en) 2000-02-15 2002-04-03 Geco Prakla Processing simultaneous vibratory seismic data
US6381544B1 (en) 2000-07-19 2002-04-30 Westerngeco, L.L.C. Deterministic cancellation of air-coupled noise produced by surface seimic sources
JP4815661B2 (ja) * 2000-08-24 2011-11-16 ソニー株式会社 信号処理装置及び信号処理方法
US6687619B2 (en) 2000-10-17 2004-02-03 Westerngeco, L.L.C. Method of using cascaded sweeps for source coding and harmonic cancellation
AU2005202928B2 (en) * 2000-10-17 2006-11-16 Westerngeco Seismic Holdings Limited Method of using cascaded sweeps for source coding and harmonic cancellation
FR2818753B1 (fr) 2000-12-21 2003-03-21 Inst Francais Du Petrole Methode et dispositif de prospection sismique par emission simultanee de signaux sismisques obtenus en codant un signal par des sequences pseudo aleatoires
US6545944B2 (en) 2001-05-30 2003-04-08 Westerngeco L.L.C. Method for acquiring and processing of data from two or more simultaneously fired sources
AUPS051102A0 (en) * 2002-02-13 2002-03-07 Curtin University Of Technology Method of producing continuous, orthogonal signals and method of their use for examining and for detecting changes in a body
GB2387226C (en) * 2002-04-06 2008-05-12 Westerngeco Ltd A method of seismic surveying
FR2845484B1 (fr) * 2002-10-08 2005-03-11 Inst Francais Du Petrole Methode de separation de signaux de microsismicite de signaux sismiques emis par une ou plusieurs sources
US7260021B1 (en) * 2003-01-08 2007-08-21 Westerngeco L.L.C. Method of harmonic noise attenuation in correlated sweep data
FR2853075B1 (fr) * 2003-03-24 2005-06-10 Centre Nat Rech Scient Procede pour determiner des reponses impulsionnelles d'un milieu visa-vis de la transmission d'ondes entre differents points
CA2520640C (en) 2003-04-01 2012-10-23 Exxonmobil Upstream Research Company Shaped high frequency vibratory source
FR2855617B1 (fr) * 2003-05-28 2005-09-02 Sercel Rech Const Elect Emission de vibrations sismiques par un train de camions vibrateurs
US20060164916A1 (en) * 2003-08-11 2006-07-27 Krohn Christine E Method for continuous sweepting and separtion of multiple seismic vibrators
US8208341B2 (en) * 2003-11-14 2012-06-26 Schlumberger Technology Corporation Processing of combined surface and borehole seismic data
GB2408101B (en) * 2003-11-14 2007-04-04 Schlumberger Holdings High-frequency processing of seismic vibrator data
US20050128874A1 (en) * 2003-12-15 2005-06-16 Chevron U.S.A. Inc. Methods for acquiring and processing seismic data from quasi-simultaneously activated translating energy sources
FR2874270B1 (fr) * 2004-08-12 2006-11-17 Geophysique Cie Gle Procede d'exploration sismique
AU2006297766B2 (en) * 2005-09-19 2011-04-28 Exxonmobil Upstream Research Company Method for performing controlled source electromagnetic surveying with multiple transmitters
US9279897B2 (en) * 2005-12-12 2016-03-08 Hannes Zuercher Locating oil or gas passively by observing a porous oil and gas saturated system giving off its characteristic resonance response to ambient background noise, including optional differentiation of oil, locatinggas and water
US20070274155A1 (en) * 2006-05-25 2007-11-29 Ikelle Luc T Coding and Decoding: Seismic Data Modeling, Acquisition and Processing
US8467266B2 (en) 2006-06-13 2013-06-18 Seispec, L.L.C. Exploring a subsurface region that contains a target sector of interest
US7382684B2 (en) * 2006-06-13 2008-06-03 Seispec, L.L.C. Method for selective bandlimited data acquisition in subsurface formations
US7295490B1 (en) 2006-07-20 2007-11-13 Conocophillips Company System and method of phase encoding for high fidelity vibratory seismic data
WO2008033184A2 (en) * 2006-09-13 2008-03-20 Exxonmobil Upstream Research Company Rapid inversion of electromagnetic reconnaissance survey data
NZ575497A (en) 2006-09-28 2011-08-26 Exxonmobil Upstream Res Co Iterative inversion of data from simultaneous geophysical sources
US8000168B2 (en) * 2006-12-08 2011-08-16 Conocophillips Company Dynamic source parameter selection for seismic vibrator data acquisition
WO2008123920A1 (en) 2007-04-10 2008-10-16 Exxonmobil Upstream Research Company Separation and noise removal for multiple vibratory source seismic data
US7859945B2 (en) * 2007-07-06 2010-12-28 Cggveritas Services Inc. Efficient seismic data acquisition with source separation
GB2451630B (en) * 2007-08-04 2009-12-09 Westerngeco Seismic Holdings Composite sweeps of high and low frequency part
US20090040227A1 (en) * 2007-08-06 2009-02-12 Vrba Joseph A Indicators for Interactive Analysis of Virtual Three-Dimensional Machine Data
US8648860B2 (en) * 2007-08-06 2014-02-11 Csi Technology, Inc. Graphics tools for interactive analysis of three-dimensional machine data
CA2694633C (en) * 2007-08-10 2015-09-01 Marvin L. Johnson Bottom referenced vibratory sources for shallow water acquisition
US7869304B2 (en) * 2007-09-14 2011-01-11 Conocophillips Company Method and apparatus for pre-inversion noise attenuation of seismic data
US7639567B2 (en) * 2007-09-17 2009-12-29 Ion Geophysical Corporation Generating seismic vibrator signals
US7864630B2 (en) * 2007-11-01 2011-01-04 Conocophillips Company Method and apparatus for minimizing interference between seismic systems
BRPI0908156A2 (pt) 2008-03-21 2015-08-11 Exxonmobil Upstream Company Métodos para invesão de dados geofísicos medidos e para produzir hidrocarbonetos de uma região de subsuperfície
RU2503035C2 (ru) * 2008-08-11 2013-12-27 Эксонмобил Апстрим Рисерч Компани Оценивание свойств почвы с использованием волновых сигналов сейсмических поверхностных волн
US8077547B2 (en) * 2008-09-26 2011-12-13 Providence technologies, Inc. Method and apparatus for seismic exploration
US9213119B2 (en) * 2008-10-29 2015-12-15 Conocophillips Company Marine seismic acquisition
US8094514B2 (en) * 2008-11-07 2012-01-10 Pgs Geophysical As Seismic vibrator array and method for using
US9052410B2 (en) 2009-02-12 2015-06-09 Conocophillips Company Multiple seismic signal inversion
US8274862B2 (en) 2009-10-09 2012-09-25 CGG Veritas System and method for determining a frequency sweep for seismic analysis
CA2775150C (en) * 2009-12-02 2015-05-19 Conocophillips Company Extraction of discrete records from continuous seismic recordings
US8553496B2 (en) * 2010-02-09 2013-10-08 Ion Geophysical Corporation Seismic source separation
US8537638B2 (en) * 2010-02-10 2013-09-17 Exxonmobil Upstream Research Company Methods for subsurface parameter estimation in full wavefield inversion and reverse-time migration
US8223587B2 (en) * 2010-03-29 2012-07-17 Exxonmobil Upstream Research Company Full wavefield inversion using time varying filters
US8694299B2 (en) 2010-05-07 2014-04-08 Exxonmobil Upstream Research Company Artifact reduction in iterative inversion of geophysical data
US8756042B2 (en) 2010-05-19 2014-06-17 Exxonmobile Upstream Research Company Method and system for checkpointing during simulations
US8767508B2 (en) 2010-08-18 2014-07-01 Exxonmobil Upstream Research Company Using seismic P and S arrivals to determine shallow velocity structure
CN103119552B (zh) 2010-09-27 2016-06-08 埃克森美孚上游研究公司 同时源编码和源分离作为全波场反演的实际解决方案
US8437998B2 (en) 2010-09-27 2013-05-07 Exxonmobil Upstream Research Company Hybrid method for full waveform inversion using simultaneous and sequential source method
WO2012074592A1 (en) 2010-12-01 2012-06-07 Exxonmobil Upstream Research Company Simultaneous source inversion for marine streamer data with cross-correlation objective function
US9134442B2 (en) * 2010-12-16 2015-09-15 Bp Corporation North America Inc. Seismic acquisition using narrowband seismic sources
EP2691795A4 (en) 2011-03-30 2015-12-09 CONVERGENCE SPEED OF COMPLETE WAVELENGTH INVERSION USING SPECTRAL SHAPING
CN103460074B (zh) 2011-03-31 2016-09-28 埃克森美孚上游研究公司 全波场反演中小波估计和多次波预测的方法
CA2833316A1 (en) 2011-05-13 2012-11-22 Conocophillips Company Seismic true estimated wavelet
CN103582825B (zh) 2011-05-13 2016-12-14 沙特阿拉伯石油公司 同步源地震数据的变频滤波
CN103649780B (zh) * 2011-05-13 2017-06-27 沙特阿拉伯石油公司 耦合的时间‑距离依赖的扫频源采集设计及数据去噪
ES2640824T3 (es) 2011-09-02 2017-11-06 Exxonmobil Upstream Research Company Utilización de la proyección sobre conjuntos convexos para limitar la inversión del campo de onda completa
FR2981746B1 (fr) 2011-10-19 2014-11-21 Cggveritas Services Sa Source et procede d'acquisition sismique marine
FR2981758B1 (fr) 2011-10-19 2013-12-06 Cggveritas Services Sa .
FR2981759B1 (fr) 2011-10-19 2014-07-18 Cggveritas Services Sa Procede et dispositif pour determiner un signal de commande pour des sources marines vibrosismiques
US9176930B2 (en) 2011-11-29 2015-11-03 Exxonmobil Upstream Research Company Methods for approximating hessian times vector operation in full wavefield inversion
US8773950B2 (en) 2011-12-27 2014-07-08 Cggveritas Services Sa Method and seismic sources with high productivity
US8675447B2 (en) 2012-01-06 2014-03-18 Cggveritas Services Sa Device and method for de-blending simultaneous shooting data
EA201491345A1 (ru) 2012-02-08 2015-05-29 Инова Лтд. Способ управления предельными значениями сейсмического вибратора на низких частотах
KR102021752B1 (ko) 2012-03-08 2019-09-17 엑손모빌 업스트림 리서치 캄파니 직교 소스 및 수신기 인코딩
US9348050B2 (en) 2012-05-23 2016-05-24 Exxonmobil Upstream Research Company Near-surface noise prediction and removal for data recorded with simultaneous seismic sources
JP5904540B2 (ja) * 2012-05-30 2016-04-13 オムロン株式会社 エレクトレット型振動検出システム、外部振動情報の生成方法、外部振動に関する伝達関数情報を生成する方法、外部振動情報の生成プログラム、外部振動に関する伝達関数情報を生成するプログラム
AU2013211510A1 (en) 2012-08-09 2014-02-27 Cgg Services Sa Adaptive sweep method and device for seismic exploration
US9405726B2 (en) * 2012-10-19 2016-08-02 Cgg Services Sa Seismic source and method for intermodulation mitigation
US8724428B1 (en) 2012-11-15 2014-05-13 Cggveritas Services Sa Process for separating data recorded during a continuous data acquisition seismic survey
US8619497B1 (en) 2012-11-15 2013-12-31 Cggveritas Services Sa Device and method for continuous data acquisition
RU2598907C1 (ru) 2012-11-28 2016-10-10 Эксонмобил Апстрим Рисерч Компани Сейсмическая отражательная q-томография
GB201304866D0 (en) * 2013-03-18 2013-05-01 Geco Technology Bv Processing microseismic data
MY169125A (en) 2013-05-24 2019-02-18 Exxonmobil Upstream Res Co Multi-parameter inversion through offset dependent elastic fwi
US10459117B2 (en) 2013-06-03 2019-10-29 Exxonmobil Upstream Research Company Extended subspace method for cross-talk mitigation in multi-parameter inversion
PL3014305T3 (pl) 2013-06-28 2019-06-28 Cgg Services Sas Oddzielanie i akwizycja źródła wibracyjno-sejsmicznego
US9702998B2 (en) 2013-07-08 2017-07-11 Exxonmobil Upstream Research Company Full-wavefield inversion of primaries and multiples in marine environment
EP3351972A1 (en) 2013-08-23 2018-07-25 Exxonmobil Upstream Research Company Iterative inversion of field-encoded seismic data based on constructing pseudo super-source records
US10036818B2 (en) 2013-09-06 2018-07-31 Exxonmobil Upstream Research Company Accelerating full wavefield inversion with nonstationary point-spread functions
US20160327665A1 (en) * 2013-12-30 2016-11-10 Pgs Geophysical As Control system for marine vibrators
WO2015153215A1 (en) 2014-04-04 2015-10-08 Conocophillips Company Method for separating seismic source data
US9910189B2 (en) 2014-04-09 2018-03-06 Exxonmobil Upstream Research Company Method for fast line search in frequency domain FWI
US10379235B2 (en) 2014-05-01 2019-08-13 Conocophillips Company Deterministic phase correction and application
SG11201608175SA (en) 2014-05-09 2016-11-29 Exxonmobil Upstream Res Co Efficient line search methods for multi-parameter full wavefield inversion
EP2949582B1 (de) * 2014-05-30 2016-09-07 UHLMANN PAC-SYSTEME GmbH & Co. KG Vorrichtung zum Entleeren und anschließenden Entsorgen von mit Broschüren befüllten Trays
US10185046B2 (en) 2014-06-09 2019-01-22 Exxonmobil Upstream Research Company Method for temporal dispersion correction for seismic simulation, RTM and FWI
CA2947410A1 (en) 2014-06-17 2015-12-30 Exxonmobil Upstream Research Company Fast viscoacoustic and viscoelastic full-wavefield inversion
US10838092B2 (en) 2014-07-24 2020-11-17 Exxonmobil Upstream Research Company Estimating multiple subsurface parameters by cascaded inversion of wavefield components
US10422899B2 (en) 2014-07-30 2019-09-24 Exxonmobil Upstream Research Company Harmonic encoding for FWI
US10386511B2 (en) 2014-10-03 2019-08-20 Exxonmobil Upstream Research Company Seismic survey design using full wavefield inversion
WO2016055826A1 (en) 2014-10-06 2016-04-14 Cgg Services Sa Method and system for high productivity seismic source acquisition using time synchronized signals in combination with source location
WO2016064462A1 (en) 2014-10-20 2016-04-28 Exxonmobil Upstream Research Company Velocity tomography using property scans
EP3234659A1 (en) 2014-12-18 2017-10-25 Exxonmobil Upstream Research Company Scalable scheduling of parallel iterative seismic jobs
US10520618B2 (en) 2015-02-04 2019-12-31 ExxohnMobil Upstream Research Company Poynting vector minimal reflection boundary conditions
WO2016130208A1 (en) 2015-02-13 2016-08-18 Exxonmobil Upstream Research Company Efficient and stable absorbing boundary condition in finite-difference calculations
EP3259620B1 (en) 2015-02-17 2020-03-11 Exxonmobil Upstream Research Company Multistage full wavefield inversion process that generates a multiple free data set
US10416327B2 (en) 2015-06-04 2019-09-17 Exxonmobil Upstream Research Company Method for generating multiple free seismic images
US10838093B2 (en) 2015-07-02 2020-11-17 Exxonmobil Upstream Research Company Krylov-space-based quasi-newton preconditioner for full-wavefield inversion
KR102020759B1 (ko) 2015-10-02 2019-09-11 엑손모빌 업스트림 리서치 캄파니 Q-보상된 전 파동장 반전
EP3362823B1 (en) 2015-10-15 2019-10-09 ExxonMobil Upstream Research Company Fwi model domain angle stacks with amplitude preservation
US10768324B2 (en) 2016-05-19 2020-09-08 Exxonmobil Upstream Research Company Method to predict pore pressure and seal integrity using full wavefield inversion
CN106094024A (zh) * 2016-06-21 2016-11-09 中国石油天然气集团公司 一种可控震源滑动扫描数据采集处理方法及装置
EP3442403B1 (en) * 2016-08-09 2019-10-09 Koninklijke Philips N.V. Processing apparatus and method for determining an ambulation motion of a subject
US20190317232A1 (en) * 2018-04-17 2019-10-17 Cgg Services Sas High-productivity seismic data acquisition using calendar-time-based sweep initiation
EP3599487A1 (en) 2018-07-24 2020-01-29 Shell Internationale Research Maatschappij B.V. System and method for seismic acquisition
CN109441541B (zh) * 2018-11-06 2020-01-03 中国矿业大学 一种煤矿采空区充填体承载压缩率监测系统及其监测方法
CN111090116B (zh) * 2019-12-13 2022-07-08 中国海洋石油集团有限公司 一种基于长基距确定地震观测系统的方法和装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332511A (en) * 1964-06-18 1967-07-25 Pan American Petroleum Corp Obtaining seismic travel time by crosscorrelating the received signal with various portions of the transmitted signal
GB1423366A (en) * 1972-07-21 1976-02-04 Seiscom Ltd Broad line seismic profiling using simultaneously radiating sources
US3984805A (en) * 1973-10-18 1976-10-05 Daniel Silverman Parallel operation of seismic vibrators without phase control
US4545039A (en) * 1982-09-09 1985-10-01 Western Geophysical Co. Of America Methods for seismic exploration
US4608673A (en) * 1983-05-11 1986-08-26 Conoco Inc. Minimum phase bandpass filtering of seismic signals
US4646274A (en) * 1983-12-21 1987-02-24 Atlantic Richfield Company Method and apparatus for correcting distorted seismic data
US4715020A (en) * 1986-10-29 1987-12-22 Western Atlas International, Inc. Simultaneous performance of multiple seismic vibratory surveys
US4707812A (en) * 1985-12-09 1987-11-17 Atlantic Richfield Company Method of suppressing vibration seismic signal correlation noise
US4823326A (en) * 1986-07-21 1989-04-18 The Standard Oil Company Seismic data acquisition technique having superposed signals
US4982374A (en) * 1989-10-23 1991-01-01 Halliburton Geophysical Services, Inc. Method of source coding and harmonic cancellation for vibrational geophysical survey sources
US5000285A (en) * 1990-02-28 1991-03-19 Atlantic Richfield Company Apparatus for imparting seismic signals into the earth
US5550786A (en) * 1995-05-05 1996-08-27 Mobil Oil Corporation High fidelity vibratory source seismic method

Also Published As

Publication number Publication date
CA2237408C (en) 2001-01-09
NO982271D0 (no) 1998-05-19
AR008461A1 (es) 2000-01-19
NO982271L (no) 1998-07-17
NO319308B1 (no) 2005-07-11
DE69728411T2 (de) 2004-08-12
DZ2310A1 (fr) 2002-12-28
EP0927369A4 (en) 2000-12-20
PE103098A1 (es) 1999-01-08
CN1205084A (zh) 1999-01-13
BR9706780A (pt) 2000-01-04
EP0927369A1 (en) 1999-07-07
US5721710A (en) 1998-02-24
CA2237408A1 (en) 1998-03-26
CN1133882C (zh) 2004-01-07
DE69728411D1 (de) 2004-05-06
WO1998012578A1 (en) 1998-03-26
EP0927369B1 (en) 2004-03-31

Similar Documents

Publication Publication Date Title
ID20030A (id) Metode seismik yang memiliki sumber getaran berketepatan tinggi dengan pengiriman sumber
DE69621026D1 (de) Zyklische gmp-spezifische phosphodiesteraseinhibitoren
NO992546L (no) Marin seismisk kilde
DE69429586D1 (de) Hydrophonträger
DE69207212D1 (de) Hochfrequenz-ionenquelle
BR9610234A (pt) Uso de lipídeos
NO20011852D0 (no) Marin seismikk-metode og -kilde
NO930161D0 (no) Seismisk broennkilde
NO932840D0 (no) Hydrofon
DE69619307T2 (de) Vibrationskreisel
NO994419D0 (no) Seismisk undersökelse
NO970187L (no) Seismisk undersökelsesmetode
DE69635976D1 (de) Magnetfelderzeugende Anordnung
DE69621372D1 (de) Vibrationskreisel
DE68903626D1 (de) Seismische schwingungsquelle.
DE69314603D1 (de) Seismische Quelle
DE69309126D1 (de) Hydrophon
DE69314622D1 (de) Seismische energiequelle
DE69612504D1 (de) Vibrationskreisel
NO943974D0 (no) Seismisk kilde
KR970047579U (ko) 이동식 발전기의 방음장치
NO975189L (no) Marin-seismisk kildesystem
DE69616169T2 (de) Vibrationskreisel
FI91327C (fi) Menetelmä värähtelyjen voimakkuuden mittaamiseksi
KR960037832U (ko) 압축기의 방진장치