公开(公告)号：EP3105619A1

公开(公告)日：2016-12-21

申请号：EP15746620.2

申请日：2015-02-10

申请人： Schlumberger Technology B.V. (STBV)

发明人： OZDEMIR, Ahmet Kemal ,  KJELLESVIG, Bent Andreas

IPC分类号： G01V1/28 ,  G01V1/30

CPC分类号： G01V1/36 ,  G01V1/38 ,  G01V1/3808 ,  G01V2200/14 ,  G01V2210/21 ,  G01V2210/24 ,  G01V2210/32 ,  G01V2210/56 ,  G01V2210/57

摘要： Various implementations directed to quality control and preconditioning of seismic data are provided. In one implementation, a method may include receiving particle motion data from particle motion sensors disposed on seismic streamers. The method may also include performing quality control (QC) processing on the particle motion data. The method may further include performing preconditioning processing on the QC-processed particle motion data. The method may additionally include attenuating noise in the preconditioning-processed particle motion data.

公开(公告)号：EP2795366A4

公开(公告)日：2016-06-22

申请号：EP12860975

申请日：2012-12-18

申请人： CONOCOPHILLIPS CO

发明人： CAO JUN ,  BREWER JOEL D ,  ZHU XIANHUAI

IPC分类号： G01V1/34 ,  G01V1/30

CPC分类号： G01V1/345 ,  G01V1/301 ,  G01V1/303 ,  G01V2200/14

公开(公告)号：EP2894495A2

公开(公告)日：2015-07-15

申请号：EP14199925.0

申请日：2014-12-23

申请人： Sercel

发明人： Ollivrin, Gilles

IPC分类号： G01V1/00 ,  G01V1/02

CPC分类号： G01V1/307 ,  G01V1/005 ,  G01V1/02 ,  G01V2200/14 ,  G01V2210/1214

摘要： A method for determining a quality control quantity corresponding to energy provided by a seismic source and related devices are provided. The method includes determining (210) an envelope of a pilot signal associated with the seismic source; measuring (220) a source signal of the energy provided by the seismic source; normalizing (230) the pilot signal and the source signal using the determined envelope; and determining (240), in a processor, the quality control quantity using the normalized pilot signal and the normalized source signal. A control mechanism configured to implement the method includes a storage device holding data of a pilot signal associated with the seismic source; and a processor connected to the storage device and configured to carry out the method steps. A computer-readable medium having instructions to carry out steps of the method is also provided.

摘要翻译： 提供了一种用于确定与由地震源和相关设备提供的能量相对应的质量控制量的方法。 该方法包括确定（210）与地震源相关联的导频信号的包络; 测量（220）由所述地震源提供的能量的源信号; 使用所确定的包络标准化（230）导频信号和源信号; 以及在处理器中使用归一化导频信号和归一化源信号确定（240）质量控制量。 被配置为实现该方法的控制机构包括：存储装置，其保存与地震源相关联的导频信号的数据; 以及连接到存储设备并被配置为执行方法步骤的处理器。 还提供了具有执行该方法的步骤的指令的计算机可读介质。

公开(公告)号：EP2856214A1

公开(公告)日：2015-04-08

申请号：EP13801168.9

申请日：2013-06-04

申请人： Fairfield Industries Incorporated

发明人： CRAFT, Kenneth ,  UDENGAARD, Carsten

IPC分类号： G01V1/38 ,  G01V1/36

CPC分类号： G01V1/38 ,  G01V1/36 ,  G01V1/3817 ,  G01V1/3835 ,  G01V2200/12 ,  G01V2200/14

摘要： The present invention permits RMS traveltime error in a seismic data acquisition to be minimized. Field measurements of source and receiver coordinates, speed of sound in water as a function of depth and time, receiver timing, and clock drift are first collected. The seismic data is then examined to measure travel time from each source to each reciever. A model travel time can then be computed based on the field measurements. By iteratively perturbing at least one of the field measured data using a look-up table and calculating the travel time after each perturbation until an acceptable RMS error has been achieved, conditioned seismic data that takes into account the dynamic nature of the water column will provide the basis for creating an accurate seismic map that is unaffected by the changing water conditions.

公开(公告)号：EP2837953A1

公开(公告)日：2015-02-18

申请号：EP12874053.7

申请日：2012-12-11

申请人： China National Petroleum Corporation ,  BGP Inc., China National Petroleum Corporation

发明人： ZHANG, Gulan ,  WANG, Ximing ,  ZHANG, Qinghong ,  LI, Yanpeng ,  PENG, Jixin ,  ZHAO, Yufeng ,  RONG, Jiaojun ,  LI, Keen ,  JIN, Qihu ,  GUO, Xiaoling

IPC分类号： G01V1/30 ,  G01V1/28

CPC分类号： G01V1/30 ,  G01V1/307 ,  G01V1/42 ,  G01V2200/14 ,  G01V2210/60 ,  G01V2210/63 ,  G01V2210/677

摘要： Provided is a method for performing layer Q factor inversion by using an amplitude spectrum attribute of a downlink wave of vertical seismic profile data in a geophysical exploration data processing technology. In the method, first an F-K (frequency-wave number) method is used to perform wave field separation on VSP original data, so as to obtain a downlink wave; a downlink sub-wave and a monitoring sub-wave are selected to undergone Fourier transform to obtain an amplitude spectrum, polynomial fitting is performed on the amplitude spectrum to obtain an equivalent Q, and a formula between the equivalent Q and a layer Q is used to perform inversion, so as to obtain the layer Q. The method has a strong capability of resisting random disturbance, and is capable of removing a difference of triggering sub-wave. The algorithm is simple and can greatly save workload; moreover, the layer Q value obtained through inversion has a desirable stability and high precision.

摘要翻译： 提供了一种通过使用地球物理勘探数据处理技术中的垂直地震剖面数据的下行波的振幅谱属性来执行层Q因子反演的方法。 在该方法中，首先利用F-K（频波数）方法对VSP原始数据进行波场分离，得到下行波; 选择下行子波和监视子波进行傅立叶变换以获得幅度谱，对振幅谱进行多项式拟合以获得等效Q，并且使用等效Q和层Q之间的公式 进行反演，以获得层Q.该方法具有很强的抵抗随机扰动的能力，能够消除触发子波的差异。 该算法简单，可以大大节省工作量; 此外，通过反转获得的层Q值具有期望的稳定性和高精度。

公开(公告)号：EP2757390A1

公开(公告)日：2014-07-23

申请号：EP13305072.4

申请日：2013-01-21

申请人： Sercel

发明人： Laine, Jérôme

IPC分类号： G01V1/16 ,  G01V13/00 ,  G01R27/02

CPC分类号： G01V1/22 ,  G01R31/026 ,  G01V1/00 ,  G01V1/162 ,  G01V13/00 ,  G01V2200/14

摘要： It is proposed an acquisition device (51) comprising a pair of input terminals (58a, 58b) adapted to be connected to a set (33) of at least one analog seismic sensor (4) generating a useful seismic signal, and disconnection detection means enabling to detect a partial or total disconnection of the set of at least one analog seismic sensor. The disconnection detection means comprise: means for injecting a low current in the set of at least one analog seismic sensor, in order to generate an offset signal which depends partially on the electrical resistance of the set of at least one analog seismic sensor and is added to the useful seismic signal; an analog-digital converter (55) and filtering means (56), for converting and filtering a voltage measured at the pair of input terminals, in order to obtain a measured value of the offset signal; and either means (56) for analysing a temporal variation of the measured value of the offset signal and for triggering an alarm if a determined condition is satisfied, or means for transmitting the measured value of the offset signal to a remote device adapted to analyse a temporal variation of the measured value of the offset signal and to trigger an alarm if a determined condition is satisfied.

摘要翻译： 建议将采集装置（51）包括一对输入端子（58A，58B）angepasst将被连接到至少一个模拟地震传感器的一组（33）（4）产生一个有用的地震信号，以及断线检测装置 使以检测该组至少一个模拟地震传感器的部分或全部断开。 断线检测装置包括：用于注入的低电流在该组至少一个模拟地震传感器，以便产生在抵消信号，该信号上，该组至少一个模拟地震传感器的电阻部分取决于并加入 到有用地震信号; 以用于转换和滤波在该对输入端的所测量的电压，以获得偏移信号的测量值的模拟 - 数字转换器（55）和过滤装置（56）; 和任一装置（56），用于实现分析所述偏移信号的测量值的时间变化和用于报警的触发，如果一个确定性的开采条件成立时，或用于发送所述偏移信号的测量值向远程设备angepasst来分析 偏移信号的测量值的时间变化，并就报警触发如果确定性开采条件得到满足。

公开(公告)号：EP1839074B1

公开(公告)日：2011-11-16

申请号：EP06700545.4

申请日：2006-01-10

申请人： Statoil ASA

发明人： MELDAHL, Paul

IPC分类号： G01V1/28

CPC分类号： G01V1/288 ,  G01V2200/14

摘要： A method of assessing acquisition errors in seismic images in a seismic data volume. The method comprises selecting a seismic attribute in a seismic data volume and then stacking seismic quality image measurement taken along the selected attribute. The stacked measurements are then related on the basis of any vertical correlation and any vertically correlated feature is identified as a cobweb. Any identified cobwebs are removed from the seismic data volume.

公开(公告)号：EP1070267B1

公开(公告)日：2005-12-28

申请号：EP98915427.3

申请日：1998-04-09

申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

发明人： ASSA, Steven, B. ,  RAMSHORN, Christoph, C.

IPC分类号： G01V1/28 ,  G01V11/00

CPC分类号： G01V1/282 ,  G01V11/00 ,  G01V2200/14 ,  G01V2210/614

公开(公告)号：EP1301807A1

公开(公告)日：2003-04-16

申请号：EP01932427.6

申请日：2001-05-22

申请人： Norsar

发明人： VINJE, Vetle

IPC分类号： G01V1/28 ,  G01V1/36

CPC分类号： G01V1/282 ,  G01V2200/14 ,  G01V2210/614

摘要： Method for solving the classical inversion problem of finding the angle dependent reflection coefficients along selected reflectors in the subsurface. The input data to the method include seismic constant offset or constant angle data cubes from Pre-Stack Depth Migration of Kirchhoff type and the corresponding reflectors and velocities from the interpretation and velocity analysis of the data. One or more of the reflectors are chosen and ray modeling is done to create synthetic seismics for all shot/receiver pairs in the seismic survey. Based on these modeling results, amplitude correction maps are made for the various reflection angles. These correction maps are applied to the amplitudes from the seismic data. The corrected amplitudes are approximations to the angle-dependent reflection coefficients in all points on each selected reflector. For each point, a weight function is computed, giving the quantitative resolution of the estimate of the reflection coefficient.

公开(公告)号：EP0966693A1

公开(公告)日：1999-12-29

申请号：EP97920822.0

申请日：1997-05-02

申请人： SCHLUMBERGER HOLDINGS LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER

发明人： SCOTT, Ian, Richard ,  PEARDON, Lloyd

IPC分类号： G01V1

CPC分类号： G01V1/28 ,  G01V2200/14

摘要： A method of determining the quality of seismic data comprises the steps of defining a predetermined threshold (step S12) from a characteristic of a first set of seismic data and translating the difference between the predetermined threshold and the corresponding characteristic of a second set of seismic data into a measure of quality of the second set of seismic data (step S16).