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1. 发明申请

US20180202287A1 SINUSOIDAL EXCITATION METHOD AND APPARATUS FOR MULTI-POLE ACOUSTIC LOGGING WHILE DRILLING 审中-公开
公开(公告)号：US20180202287A1
公开(公告)日：2018-07-19
申请号：US15708984
申请日：2017-09-19
申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences
发明人： Yuntao SUN , Wenxuan CHEN , Wenxiu ZHANG , Yongyou YANG , Qingyun DI , Jian ZHENG
IPC分类号： E21B47/14 , G01V1/00 , G01V1/46 , G01V1/48 , G01V1/52 , H03F3/42 , H03F3/26 , H03F3/213
CPC分类号： E21B47/14 , G01V1/005 , G01V1/46 , G01V1/48 , G01V1/52 , G01V2200/16 , G01V2210/127 , G01V2210/6161 , H03F3/213 , H03F3/26 , H03F3/265 , H03F3/423 , H03F2200/541 , H03F2203/7206
摘要： In an apparatus for multi-pole acoustic logging while drilling, a N-cycle sinusoidal wave signal is generated by utilizing a signal processor, and amplified into a high-voltage sinusoidal excitation signal by utilizing a power amplifier, and output to a transmitting transducer. The signal processor simultaneously generates an enable signal. The enable signal includes a transient discharge enable signal. The power amplifier is connected with a transient discharge circuit. After the signal processor generates N cycles of a sinusoidal wave, the transient discharge enable signal enables the transient discharge circuit to discharge to release an energy storage current of a power transformer so as to eliminate a high-voltage ringing effect and improve an excitation efficiency of the transducer.

2. 发明授权

US09952342B2 Methods and devices for acquiring seismic data relative to an underground area beneath the sea 有权
公开(公告)号：US09952342B2
公开(公告)日：2018-04-24
申请号：US14894889
申请日：2014-05-15
申请人： TOTAL SA , PHYSEIS CONSULTANT
发明人： Jacques Blanco , Ramin Nawab , Jean-Luc Boelle , Jean-Marc Mougenot
IPC分类号： G01V1/38
CPC分类号： G01V1/3808 , G01V2210/127 , G01V2210/56
摘要： In order to acquire seismic data relative to an underground area beneath the sea, seismic waves are emitted in an emission direction forming an angle θ with the vertical using at least one seismic source submerged at a depth d. A seismic signal is collected following the emission of the seismic waves and the propagation of same underground with a view to processing same. In one embodiment of the method, in order to overcome the major problem linked to the depth limit encountered by seismic sources, the processing of the seismic signal comprises a summation of a plurality of terms including the seismic signal and the seismic signal delayed by ΔT=2d·cos θ/V, in which V is the speed of propagation of the seismic waves in water.

3. 发明申请

US20170276817A1 DEBLENDED AND DEGHOSTED SEISMIC DATA 审中-公开
公开(公告)号：US20170276817A1
公开(公告)日：2017-09-28
申请号：US15326806
申请日：2015-12-18
申请人： PGS Geophysical AS
发明人： Gert-Jan Adriaan van Groenestijn
IPC分类号： G01V1/36 , G01V1/38
CPC分类号： G01V1/364 , G01V1/38 , G01V2210/121 , G01V2210/127 , G01V2210/1423 , G01V2210/20 , G01V2210/56
摘要： Deblending and deghosting seismic data may include processing blended seismic data acquired after actuation of a first seismic source located at a first depth and a second seismic source located at a second depth. The processing may comprise deblending and deghosting the blended seismic data based on a difference in ghost responses of the first seismic source and the second seismic source.

4. 发明申请

US20170176620A1 Individual Actuation within a Source Subarray 审中-公开
公开(公告)号：US20170176620A1
公开(公告)日：2017-06-22
申请号：US15344669
申请日：2016-11-07
申请人： PGS Geophysical AS
发明人： Jostein Lima , Tilman Kluver , Stian Hegna
IPC分类号： G01V1/38
CPC分类号： G01V1/3861 , G01V1/006 , G01V2210/127
摘要： Source element of a source subarray can be individually actuated according to an actuation sequence. The actuation sequence can be at least partially based on a relative position of each of the source elements within a particular geometry of the source subarray with respect to a previously actuated source element and a towing velocity of the source subarray.

5. 发明授权

US09678233B2 Seismic source coding, activation, and acquisition 有权
公开(公告)号：US09678233B2
公开(公告)日：2017-06-13
申请号：US14540506
申请日：2014-11-13
申请人： Raymond Lee Abma , Allan Ross
发明人： Raymond Lee Abma , Allan Ross
IPC分类号： G01V1/38 , G01V1/00
CPC分类号： G01V1/3808 , G01V1/003 , G01V2210/127
摘要： The Monte-Carlo method of generating Popcorn shooting patterns starts with the number and sizes of the guns available and the length in time of the desired Popcorn pattern. The firing times and order of the guns will be randomly perturbed and a large number of Popcorn patterns built. Candidate Popcorn patterns will then be tested against a set of criteria to identify acceptable or the best patterns. These criteria may include limits on maximum peak strength, distinctiveness compared to the other patterns, and the size of the notches and peaks in the spectra.

6. 发明申请

US20170082761A1 METHODS FOR SIMULTANEOUS SOURCE SEPARATION 审中-公开
公开(公告)号：US20170082761A1
公开(公告)日：2017-03-23
申请号：US14974060
申请日：2015-12-18
申请人： CONOCOPHILLIPS COMPANY
发明人： Chengbo LI , Chuck MOSHER , Leo JI , Joel BREWER
IPC分类号： G01V1/36 , G01V1/28
CPC分类号： G01V1/368 , G01V1/282 , G01V1/364 , G01V2210/127 , G01V2210/57
摘要： A multi-stage inversion method for deblending seismic data includes: a) acquiring blended seismic data from a plurality of seismic sources; b) constructing an optimization model that includes the acquired blended seismic data and unblended seismic data; c) performing sparse inversion, via a computer processor, on the optimization model; d) estimating high-amplitude coherent energy from result of the performing sparse inversion in c); e) re-blending the estimated high-amplitude coherent energy; and f) computing blended data with an attenuated direct arrival energy.

7. 发明授权

US09551800B2 Device and method for deblending simultaneous shooting data using annihilation filter 有权
标题翻译：使用湮灭过滤器同时拍摄数据的设备和方法
公开(公告)号：US09551800B2
公开(公告)日：2017-01-24
申请号：US15142495
申请日：2016-04-29
申请人： CGG SERVICES SA
发明人： Jonas Rohnke , Gordon Poole , Ross Haacke
IPC分类号： G01V1/36
CPC分类号： G01V1/364 , G01V2210/127 , G01V2210/24 , G01V2210/3246
摘要： A device, medium and method for deblending seismic data associated with a subsurface of the earth. The method includes receiving an input dataset generated by first and second sources S1 and S2 that are operating as simultaneous sources; arranging the input dataset based on the firing times of source S1; applying with a computing system an annihilation filter to the arranged input dataset to estimate cross-talk noise; convolving the cross-talk noise estimate with an operator to form a signal estimate using the firing times of S1 and S2; and generating an image of the subsurface based on the signal estimate.
摘要翻译：用于对与地球地下相关的地震数据进行拆除的装置，介质和方法。该方法包括接收由作为同时源操作的第一和第二源S1和S2产生的输入数据集; 基于源S1的点火时间安排输入数据集; 将计算系统应用于排列的输入数据集的湮灭滤波器以估计串扰噪声; 使用操作者卷积串扰噪声估计，以使用S1和S2的点火时间形成信号估计; 以及基于所述信号估计生成所述地下图像。

8. 发明申请

US20160170053A1 STABILIZATION OF SEISMIC DATA 有权
标题翻译：地震数据稳定
公开(公告)号：US20160170053A1
公开(公告)日：2016-06-16
申请号：US14427455
申请日：2014-09-11
申请人： CGG Services SA
发明人： Florian Duret , Julien Cotton , Daniel Clarke
IPC分类号： G01V1/36
CPC分类号： G01V1/36 , G01V1/308 , G01V2210/127 , G01V2210/612
摘要： The present disclosure includes a method for stabilizing controlled seismic signals based on uncontrolled seismic signals. The method includes calculating reconstructed signals associated with a first receiver. Each reconstructed signal is based on uncontrolled signals recorded by a respective pair of receivers that includes the first receiver and a respective second receiver. The method also includes calculating signal variations. Each signal variation is associated with a respective pair of receivers and based on a difference between the reconstructed signal associated with the respective pair of receivers and a reference associated with the respective pair of receivers. The method also includes calculating a stabilization factor for the first receiver based on the first signal variations. The method also includes modifying controlled seismic signals recorded by the first receiver by applying the stabilization factor to the controlled seismic signals. The present disclosure may also include associated systems and apparatuses.
摘要翻译：本公开包括用于基于不受控制的地震信号来稳定受控地震信号的方法。该方法包括计算与第一接收机相关联的重构信号。每个重建的信号基于由包括第一接收机和相应的第二接收机的相应的一对接收机记录的不受控制的信号。该方法还包括计算信号变化。每个信号变化与相应的一对接收机相关联，并且基于与相应的接收机对相关联的重建信号与与相应的接收机对相关联的参考之间的差异。该方法还包括基于第一信号变化来计算第一接收机的稳定因子。该方法还包括通过将稳定因子应用于受控地震信号来修改由第一接收机记录的受控地震信号。本公开还可以包括相关系统和装置。

9. 发明申请

US20160109598A1 METHODS AND SYSTEMS TO SEPARATE SEISMIC DATA ASSOCIATED WITH IMPULSIVE AND NON-IMPULSIVE SOURCES 审中-公开
标题翻译：分离与非侵入性来源相关的地震数据的方法和系统
公开(公告)号：US20160109598A1
公开(公告)日：2016-04-21
申请号：US14816561
申请日：2015-08-03
申请人： PGS Geophysical AS
发明人： Nils Lunde , Okwudili Chuks Orji , Mattias Dan Christian Oscarsson
IPC分类号： G01V1/36 , G01V1/38
CPC分类号： G01V1/366 , G01V1/36 , G01V1/3808 , G01V2210/1212 , G01V2210/1214 , G01V2210/127 , G01V2210/20
摘要： Methods and systems to separate seismic data associated with impulsive and non-impulsive sources are described. The impulsive and non-impulsive sources may be towed through a body of water by separate survey vessels. Receivers of one or more streamers towed through the body of water above a subterranean formation generate seismic data that represents a reflected wavefield produced by the subterranean formation in response to separate source wavefields generated by simultaneous activation of the impulsive source and the non-impulsive source. Methods and systems include separating the seismic data into impulsive source seismic data associated with the impulsive source and non-impulsive source seismic data associated with the non-impulsive.
摘要翻译：描述了分离与脉冲和非脉冲源相关的地震数据的方法和系统。脉冲和非冲动源可以通过单独的测量船拖过水体。通过地下地层上方的水体拖曳的一个或多个拖缆的接收器产生地震数据，其响应于通过同时激活脉冲源和非冲击源而产生的分离的源波场而产生地层，产生的反射波场。方法和系统包括将地震数据分离成与脉冲源相关的脉冲源地震数据和与非脉冲相关联的非脉冲源地震数据。

10. 发明申请

US20160077231A1 DEVICE AND METHOD FOR DEBLENDING SIMULTANEOUS SHOOTING DATA USING ANNIHILATION FILTER 有权
公开(公告)号：US20160077231A1
公开(公告)日：2016-03-17
申请号：US14804820
申请日：2015-07-21
申请人： CGG SERVICES SA
发明人： Jonas ROHNKE , Gordon POOLE , Ross HAACKE
IPC分类号： G01V1/36
CPC分类号： G01V1/364 , G01V2210/127 , G01V2210/24 , G01V2210/3246
摘要： A device, medium and method for deblending seismic data associated with a subsurface of the earth. The method includes receiving an input dataset generated by first and second sources S1 and S2 that are operating as simultaneous sources; arranging the input dataset based on the firing times of source S1; applying with a computing system an annihilation filter to the arranged input dataset to estimate cross-talk noise; convolving the cross-talk noise estimate with an operator to form a signal estimate using the firing times of S1 and S2; and generating an image of the subsurface based on the signal estimate.

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