公开(公告)号：US20160109591A1

公开(公告)日：2016-04-21

申请号：US14882903

申请日：2015-10-14

Applicant: WESTERNGECO L.L.C.

Inventor： Yousif Izzeldin Kamil Amin ,  Pradeep Loganathan

IPC: G01V1/30 ,  G01V1/38

CPC classification number: G01V1/30 ,  G01V1/187 ,  G01V1/366 ,  G01V1/3808 ,  G01V2210/1423 ,  G01V2210/144 ,  G01V2210/3248 ,  G01V2210/34

Abstract: Various implementations described herein are directed to methods for processing seismic data, including estimating a spectral noise power of multi-measurement seismic data received from a multi-dimensional seismic sensor array having multiple seismic sensors. The methods may include receiving a shot record of multi-measurement seismic data in time-domain, partitioning the shot record into overlapping time-space windows, and computing a frequency-domain spectrum for each time-space window. The methods may include computing a signal presence probability for each time-space window using the frequency-domain spectrum and prior probabilities of signal presence and absence for each time-space window. The methods may include iteratively updating a collective spectral noise power by recursively estimating the spectral noise power of a current time-space window based on the frequency spectrum for the current time-space window, the signal presence probability computed for the current time-space window, and a previously estimated spectral noise power of a previous time-space window.

Abstract translation: 本文描述的各种实现涉及用于处理地震数据的方法，包括估计从具有多个地震传感器的多维地震传感器阵列接收的多测量地震数据的频谱噪声功率。 这些方法可以包括在时域中接收多测量地震数据的拍摄记录，将拍摄记录划分成重叠的时空窗口，以及计算每个时空窗口的频域频谱。 该方法可以包括使用每个时空窗口的频域频谱和信号存在和不存在的先验概率来计算每个时空窗口的信号存在概率。 这些方法可以包括通过基于当前时空窗口的频谱递归地估计当前时空窗口的频谱噪声功率来迭代地更新总谱噪声功率，为当前时空窗计算的信号存在概率 ，以及先前估计的前一时空窗的频谱噪声功率。

公开(公告)号：US09268049B2

公开(公告)日：2016-02-23

申请号：US13714731

申请日：2012-12-14

Applicant: WESTERNGECO L.L.C.

Inventor： Gary John Tustin ,  Steven Antony Gahlings ,  Robert Hughes Jones

IPC: G01V1/38 ,  G01V1/20 ,  G01V1/18 ,  G01V1/36 ,  G01V13/00

CPC classification number: G01V1/186 ,  G01V1/201 ,  G01V1/36 ,  G01V1/38 ,  G01V1/3808 ,  G01V13/00 ,  G01V2001/205 ,  G01V2001/207

Abstract: An embodiment of the disclosed invention includes a method for attenuating noise during acquisition of marine seismic date. The method includes placing a seismic streamer in a body of water. The seismic streamer includes a streamer body having a length and a channel, a seismic sensor disposed within the channel, and a gel disposed within the channel. The gel has a complex viscosity of at least 50 Pascals and includes a concentration of a polymer between the range of about 5% and about 25% by weight. The method also includes placing a source in the body of water. The seismic streamer and the source are towed through the body of water and the source is fired while being towed through the body of water. Data is collected from the seismic streamer as it is towed through the body of water.

Abstract translation: 所公开的发明的实施例包括在海洋地震日期的采集期间衰减噪声的方法。 该方法包括将地震拖缆放置在水体中。 地震拖缆包括具有长度和通道的拖缆主体，设置在通道内的地震传感器和设置在通道内的凝胶。 凝胶具有至少50帕斯卡的复合粘度，并且包括聚合物的浓度在约5重量％至约25重量％的范围内。 该方法还包括将源放置在水体中。 地震拖缆和水源通过水体被拖曳，源头在被水流拖动的同时被射击。 数据是从地震拖缆收集的，因为它被拖过水体。

公开(公告)号：US09188689B2

公开(公告)日：2015-11-17

申请号：US13725154

申请日：2012-12-21

Applicant: WESTERNGECO L.L.C.

Inventor： Kui Lin ,  Igor Borodin ,  Leonid Dovgilovich ,  Vasily Baydin ,  Ivan Sofronov

IPC: G01V1/28

CPC classification number: G01V1/282 ,  G01V1/28 ,  G01V2210/51 ,  G01V2210/679

Abstract: Computing systems and methods to producing a reverse time migration model dip-guided image using processed vertical seismic profile data are provided. In one embodiment, vertical seismic profile data for a subsurface geological formation is obtained. One or more dip estimates corresponding to the subsurface geological formation are also obtained. One or more model dip-guided reverse time migration imaging conditions are determined and applied to the obtained vertical seismic profile data to produce the processed vertical seismic profile data.

Abstract translation: 提供了使用处理的垂直地震剖面数据产生反向时间偏移模型汲取图像的计算系统和方法。 在一个实施例中，获得了地下地质构造的垂直地震剖面数据。 还获得了对应于地下地质构造的一个或多个倾斜估计。 确定一个或多个模型浸渍引导反向时间迁移成像条件并将其应用于所获得的垂直地震剖面数据，以产生经处理的垂直地震剖面数据。

公开(公告)号：US20150323688A1

公开(公告)日：2015-11-12

申请号：US14805962

申请日：2015-07-22

Applicant: WESTERNGECO L.L.C.

Inventor： CHENGBIN PENG ,  JUN TANG ,  MARTA WOODWARD

IPC: G01V1/28 ,  G01V1/34

CPC classification number: G01V1/282 ,  G01V1/32 ,  G01V1/34 ,  G01V1/362 ,  G01V2210/53 ,  G01V2210/63

Abstract: Described herein are implementations of various technologies for a method for processing seismic data corresponding to a region of interest. The method may receive the seismic data. The method may separate the received seismic data into refraction packets and reflection packets. The method may receive a model for the region of interest. The method may update a first portion of the received model using the refraction packets with refraction traveltime tomography. The method may use the updated model to facilitate hydrocarbon exploration or production.

Abstract translation: 这里描述了用于处理对应于感兴趣区域的地震数据的方法的各种技术的实现。 该方法可以接收地震数据。 该方法可以将接收的地震数据分离成折射包和反射包。 该方法可以接收感兴趣区域的模型。 该方法可以使用具有折射旅行时间层析成像的折射分组来更新接收到的模型的第一部分。 该方法可以使用更新的模型来促进碳氢化合物勘探或生产。

公开(公告)号：US20150158556A1

公开(公告)日：2015-06-11

申请号：US14562864

申请日：2014-12-08

Applicant: WESTERNGECO L.L.C.

Inventor： Joel Pederick ,  Anders Nesheim ,  Charles Thomas ,  Robert Frank Applegate

IPC: B63B21/66 ,  G01V1/38

CPC classification number: B63B21/663 ,  B63B59/04 ,  G01V1/201 ,  Y10T29/49885

Abstract: Various implementations directed to a foul release material for use with fairings. In one implementation, a seismic cable for use in a seismic acquisition system may include a fairing configured to engage with an outer diameter of the seismic cable. The seismic cable may also include a foul release material applied to an outer surface of the fairing, where the foul release material is configured to minimize the formation of biofouling on the outer surface of the fairing.

Abstract translation: 针对用于整流罩的污垢释放材料的各种实施方式。 在一个实施方案中，用于地震采集系统的地震缆索可以包括配置成与地震索的外径接合的整流罩。 地震电缆还可以包括施加到整流罩外表面上的防污材料，其中防污材料构造成使整流罩的外表面上的生物污垢形成最小化。

公开(公告)号：US20150066458A1

公开(公告)日：2015-03-05

申请号：US14389346

申请日：2013-03-28

Applicant: WESTERNGECO L.L.C.

Inventor： Darrell Coles ,  Hugues A. Djikpesse ,  Michael David Prange ,  Richard Coates

IPC: G01V1/42 ,  G01V3/30

CPC classification number: G01V1/42 ,  G01V1/303 ,  G01V1/362 ,  G01V1/368 ,  G01V1/3808 ,  G01V1/40 ,  G01V3/30 ,  G01V3/38 ,  G01V7/00 ,  G01V11/00 ,  G01V99/00 ,  G01V2210/612

Abstract: An objective function is based on covariance of differences in predicted data over multiple sets of candidate model parameterizations that characterize a target structure. A computation is performed with respect to the objective function to produce an output. An action selected from the following can be performed based on the output of the computation: selecting at least one design parameter relating to performing a survey acquisition that is one of an active source survey acquisition and a non-seismic passive acquisition, and selecting a data processing strategy.

Abstract translation: 目标函数基于表征目标结构的多组候选模型参数化的预测数据的差异的协方差。 相对于目标函数执行计算以产生输出。 可以基于计算的输出来执行从以下选择的动作：选择与执行作为活动源调查获取和非地震被动获取之一的调查获取相关的至少一个设计参数，并且选择数据 处理策略。

公开(公告)号：US20140345946A1

公开(公告)日：2014-11-27

申请号：US14370056

申请日：2013-01-18

Applicant: WesternGeco L.L.C.

Inventor： Jan Øystein Haavig Bakke ,  Oddgeir Gramstad

IPC: G01V1/34 ,  E21B47/12 ,  G01V1/30

CPC classification number: G01V1/345 ,  E21B47/12 ,  G01V1/30 ,  G01V1/307 ,  G01V2210/74

Abstract: A computer-implemented method of determining a search expression describing a feature of interest in a set of data points distributed throughout a geological object is provided. Each data point contains a value for a geological attribute at that point. The search expression has a plurality of entries. The method including the steps of: (i) displaying the geological object using display codings corresponding to value subranges for the geological attribute such that all data points which have values for the geological attribute falling within a given value subrange are displayed with the same coding; (ii) selecting a plurality of data points of the feature of interest; and (iii) allocating value characters to entries of the search expression, the value characters corresponding to the value subranges for the geological attribute of the selected data points.

Abstract translation: 提供了一种计算机实现的方法，用于确定描述在整个地质对象中分布的一组数据点中的感兴趣特征的搜索表达。 每个数据点包含该点的地质属性值。 搜索表达式具有多个条目。 该方法包括以下步骤：（i）使用与地质属性的值子范围相对应的显示编码来显示地质物体，使得具有落在给定值子范围内的地质属性的值的所有数据点以相同的编码显示; （ii）选择感兴趣特征的多个数据点; 和（iii）将值字符分配给搜索表达式的条目，对应于所选数据点的地质属性的值子范围的值字符。

公开(公告)号：US20140321239A1

公开(公告)日：2014-10-30

申请号：US14273262

申请日：2014-05-08

Applicant: WESTERNGECO L.L.C.

Inventor： Johan O. A. ROBERTSSON ,  Dirk-Jan VAN MANEN ,  David Fraser HALLIDAY ,  Robert Montgomery LAWS

IPC: G01V1/38

CPC classification number: G01V1/308 ,  G01V1/38 ,  G01V1/3808 ,  G01V1/3817 ,  G01V1/3843 ,  G01V1/3861

Abstract: The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image.

Abstract translation: 本文描述的技术包括用于执行第一次地震测量并在第一次地震测量和第二次地震勘测之后经过预定时间的时间之后执行第二次地震勘测的系统和方法。 第二次地震测量的拍摄时间和拍摄位置可以与第一次地震勘测的拍摄时间和拍摄位置基本相同。 在执行地震勘测之后，可以处理由第一地震勘测产生的地震数据以产生第一图像，并且可以处理由第二地震勘测产生的地震数据以产生第二图像。 在产生第一和第二图像之后，可以计算第一图像和第二图像之间的差异以产生时间差分图像。

公开(公告)号：US20140316709A1

公开(公告)日：2014-10-23

申请号：US14358724

申请日：2012-11-14

Applicant: WESTERNGECO L.L.C.

Inventor： YING jI ,  Julian Edward Kragh ,  ALI Özbek

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V1/36 ,  G01V2210/32 ,  G01V2210/3246

Abstract: Methods and apparatuses for processing seismic data to generate images or determine properties of an interior section of the Earth. The seismic data is processed to filter coherent noise such as ground roll noise from seismic survey data. The noise is attenuated using 3D and/or 2D fan filters, which may have combined low-pass and band-pass filters derived from signal decomposition. The filters are designed with selected operator length, velocity bands of signals and noises and frequency range for a primary trace and adjacent traces within the operator length. The data is decomposed with the filters into signals and noises, and the noises are then filtered from the decomposed data. The process may be repeated for various frequencies and traces within the seismic data. The methods may be used for surveys that have either regular or irregular seismic receiver or seismic source positions.

Abstract translation: 用于处理地震数据以产生图像或确定地球内部部分特性的方法和装置。 对地震数据进行处理，以从地震勘测数据中滤除地面滚动噪声等相干噪声。 使用3D和/或2D风扇滤波器对噪声进行衰减，其可以具有从信号分解导出的组合的低通滤波器和带通滤波器。 滤波器设计为选择的操作员长度，信号的速度带，噪声和频率范围，主要迹线和操作员长度内的相邻迹线。 数据用滤波器分解成信号和噪声，然后从分解的数据中滤出噪声。 可以对地震数据内的各种频率和迹线重复该过程。 这些方法可用于具有规则或不规则地震接收器或地震源位置的勘测。

公开(公告)号：US20140288837A1

公开(公告)日：2014-09-25

申请号：US13847378

申请日：2013-03-19

Applicant: WESTERNGECO L.L.C.

Inventor： PASCAL EDME ,  EVERHARD JOHAN MUIJZERT

IPC: G01V1/30

CPC classification number: G01V1/28 ,  G01V2210/57

Abstract: Translational data acquired by at least one seismic sensor is received. Gradient sensor data acquired by at least one gradient sensor is received. Estimated translational data at a position away from at least one position of the at least one seismic sensor is computed, where the computing is based on the gradient sensor data and the translational data.

Abstract translation: 接收由至少一个地震传感器采集的平移数据。 接收由至少一个梯度传感器采集的梯度传感器数据。 计算远离至少一个地震传感器的至少一个位置的位置处的估计翻译数据，其中计算基于梯度传感器数据和平移数据。