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1. 发明授权

EP0750203B1 Subsurface modeling from seismic data and secondary measurements 失效
标题翻译：地下地震数据和二次测量的建模
公开(公告)号：EP0750203B1
公开(公告)日：2003-09-03
申请号：EP96304631.3
申请日：1996-06-21
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Doyen, Philippe Marie , Den Boer, Lennert David
IPC分类号： G01V11/00 , G01V1/28
CPC分类号： G01V1/282 , G01V1/48 , G01V2210/665

2. 发明授权

EP0809122B1 Computation of Q-derived static corrections from seismic data 失效
标题翻译：计算来自地震数据Q-衍生静校正数据
公开(公告)号：EP0809122B1
公开(公告)日：2001-10-24
申请号：EP96303589.4
申请日：1996-05-21
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Chambers, Ronald E. , Mallick, Subhashis
IPC分类号： G01V1/36
CPC分类号： G01V1/362 , G01V2210/53

3. 发明授权

EP0782011B1 Correcting the effects of coupling differences in seismic surveying 失效
标题翻译：纠正联接而在地震测量不同
公开(公告)号：EP0782011B1
公开(公告)日：2001-07-25
申请号：EP96308644.2
申请日：1996-11-29
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Barr, Frederick James
IPC分类号： G01V1/38 , G01V1/36
CPC分类号： G01V1/3808

4. 发明授权

EP0620893B1 FORMATION TESTING AND SAMPLING METHOD AND APPARATUS 失效
标题翻译：方法和设备的抽样和成因分析
公开(公告)号：EP0620893B1
公开(公告)日：2000-12-27
申请号：EP94903265.0
申请日：1993-11-15
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： MICHAELS, John, M. , LEDER, John, T.
IPC分类号： E21B49/00 , E21B49/10
CPC分类号： E21B49/10
摘要： A method and apparatus for use in formation testing instrument (13) for acquisition of a phase intact sample of connate fluid. One or more fluid sample tanks (26, 28) contained within the instrument (13) are pressure balanced with respect to the wellbore at formation level and are filled with a connate fluid sample in such manner that during filling of the sample tanks (26, 28) the pressure of the connate fluid is maintained within the predetermined range above the bubble point of the fluid sample. The sample tank (26, 28) incorporates an internal free-floating piston (46) which separates the sample tank into sample containing and pressure balancing chambers with the pressure balancing chamber being in communication with borehole pressure. The sample tank is provided with a cut-off valve (27, 29) enabling the pressure of the fluid sample to be maintained after the formation testing instrument (13) has been retrieved from the wellbore for transportation to a laboratory facility.

5. 发明公开

EP1047958A1 MARINE SEISMIC SYSTEM 审中-公开
标题翻译：海地震系统
公开(公告)号：EP1047958A1
公开(公告)日：2000-11-02
申请号：EP98966030.3
申请日：1998-12-21
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： AMBS, Loran, D.
IPC分类号： G01V1/28
CPC分类号： G01V1/3808
摘要： The present invention discloses a marine seismic system (10) with a control system (20) and at least one powered (manned or unmanned) tow vehicle (30) with at least one seismic apparatus or system attached (21) thereto, the at least one powered tow (30) vehicle for selectively towing under its own power the at least one seismic apparatus (30) or system in one aspect such towing is done in controlled conjunction (40) with movement of one or more host vessels (20) in another aspect such a marine seismic system (10) includes at least one service boat (40) for servicing the at least one power tow vehicle (30).

6. 发明授权

EP0621958B1 SEISMIC SOURCE SYSTEM UTILIZING A SMALL DIAMETER HOSE BUNDLE 失效
标题翻译：震源安排下使用小直径SCHLAUCHBUENDEL
公开(公告)号：EP0621958B1
公开(公告)日：1998-11-11
申请号：EP94900347.9
申请日：1993-09-24
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： JOHNSTON, Otis, A.
IPC分类号： G01V1/00 , G01V1/38 , H04B13/00 , G01V1/04
CPC分类号： G01V1/04
摘要： This invention is a seismic source system (10) for marine surveying using a small diameter hose bundle (22) containing an electrical cable (40) disposed within an air hose (46) which is reinforced with torque-balanced layers of armor components (50) and protective jacket (60) and connected to a termination assembly (20) at one end for connection to an electrical power supply (18), pressurized air supply (16) and control system (14) and connected to another termination assembly (26) at the other end for connection to an air gun subarray comprising multiple air guns.

7. 发明公开

EP0782011A2 Correcting the effects of coupling differences in seismic surveying 失效
标题翻译： Korrektur von Kopplungsunterscheiden在seismischen Messungen
公开(公告)号：EP0782011A2
公开(公告)日：1997-07-02
申请号：EP96308644.2
申请日：1996-11-29
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Barr, Frederick James
IPC分类号： G01V1/38 , G01V1/36
CPC分类号： G01V1/3808
摘要： A marine seismic surveying method records, with a first sensor (22), a first signal indicative of pressure and, with a second sensor (22), a second signal indicative of motion. A coupling mechanism filter for the second signal is calculated to substantially correct for the imperfect coupling of the second sensor, and a correction filter, based on the coupling mechanism filter, is applied to at least one of the signals.
摘要翻译：海洋地震测量方法利用第一传感器（22）记录指示压力的第一信号，并且利用第二传感器（22）记录指示运动的第二信号。计算用于第二信号的耦合机构滤波器以基本上校正第二传感器的不完美耦合，并且基于耦合机构滤波器的校正滤波器被应用于至少一个信号。

8. 发明公开

EP0632293A3 Method for correcting seismic data to a datum 失效
标题翻译：一种用于从基准面校正的地震数据的方法。
公开(公告)号：EP0632293A3
公开(公告)日：1997-04-16
申请号：EP94304611.0
申请日：1994-06-24
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Mackay, Scott W.
IPC分类号： G01V1/36
CPC分类号： G01V1/362 , G01V2210/522
摘要： Disclosed is a method for processing geophysical data that have been gathered over irregular topography. According to the method, a datum is established that lies above the highest topographic peak. The data are time-shifted from the surface to the datum using a replacement velocity that is an extrapolation of the underlying formation velocity. The wavefields beneath the surface are forwardly modeled using a modeling velocity substantially equal to zero. Between the surface and the datum, the wavefields are upwardly modeled using the replacement velocity.

9. 发明公开

EP0766836A1 UNIFORM SUBSURFACE COVERAGE AT STEEP DIPS 失效
标题翻译：即使在陡坡的存在罩面
公开(公告)号：EP0766836A1
公开(公告)日：1997-04-09
申请号：EP96912878.0
申请日：1996-04-18
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： BEASLEY, Craig, J.
IPC分类号： G01V1
CPC分类号： G01V1/006 , G01V1/38 , G01V1/3817
摘要： A method for minimizing non-uniform insonification of subsurface formations in the presence of steep dips (F) when advancing a swath of elongated parallel seismic streamer cables (13) along a line of survey. A first acoustic source (SL) is stationed at the leading end of the swath and a second source (ST) is stationed at the trailing end of the swath. The sources (SL, ST) are activated in alternative cycles at preselected timed intervals (26, 29) to provide down-dip and up-dip seismic data sets. The data sets are processed and merged to eliminate objectionable shadow zones.

10. 发明公开

EP0674189A3 Seismic exploration 失效转让
标题翻译：地震勘探。
公开(公告)号：EP0674189A3
公开(公告)日：1997-04-02
申请号：EP95301995.7
申请日：1995-03-24
申请人： WESTERN ATLAS INTERNATIONAL, INC.
发明人： Doyen, Philippe M. , Psaila, David E.
IPC分类号： G01V1/28
CPC分类号： G01V1/30 , G01V11/00
摘要： A discretized lithologic model of the subsurface is defined by a regular array of pixels (x). Each pixel (x) corresponds to one of a finite number of possible lithoclasses such as sand, shale or dolomite. The lithoclasses are unknown except at a small number of sparsely distributed control pixels associated with borehole locations. Associated with each pixel there is a multivariate record of seismic attributes that may be statistically correlatable with the local lithology. A Monte Carlo method is used to simulate the lithoclass spatial distribution by combining the lithologic data at control pixels with the seismic-attribute data records. Using Indicator Kriging, a prior probability distribution of the lithoclasses is calculated for each pixel from the lithology values at neighboring pixels. The likelihood of each lithoclass is also calculated in each pixel from the corresponding conditional probability distribution of seismic attributes. A posterior lithoclass probability distribution is obtained at each pixel by multiplying the prior distribution and the likelihood function. The posterior distributions are sampled pixel-by-pixel to generate equally probable models of the subsurface lithology.

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