公开(公告)号：US20160202374A1

公开(公告)日：2016-07-14

申请号：US14994908

申请日：2016-01-13

Applicant: WesternGeco L.L.C.

Inventor： Sribharath Kainkaryam ,  David Nichols ,  Robert Bloor ,  Marvin Decker

IPC: G01V1/30 ,  G01V1/28

CPC classification number: G01V1/303 ,  G01V2210/51

Abstract: Systems, methods, and computer-readable media for determining a velocity model. The method includes receiving a first velocity model having a first symmetry approximation of a media of a subterranean domain, receiving seismic data representing a subterranean formation, and determining, by operation of a processor, a second velocity model having a second symmetry approximation of the media, the second symmetry approximation being less symmetric than the first symmetry approximation. The second velocity model is determined based on an estimate of residual moveout as a function of azimuth and one or more differentials that relate one or more changes in residual moveout as a function of azimuth to one or more orthorhombic parameters. The method also including migrating the seismic data using the second velocity model.

Abstract translation: 用于确定速度模型的系统，方法和计算机可读介质。 该方法包括接收具有地下域的介质的第一对称近似的第一速度模型，接收表示地下地层的地震数据，以及通过处理器的操作确定具有介质的第二对称近似的第二速度模型 ，第二对称近似与第一对称近似较不对称。 第二速度模型基于作为方位角和一个或多个差异的函数的残余移动的估计来确定，所述差异将残余移动中的一个或多个变化作为方位角的函数与一个或多个正交参数相关联。 该方法还包括使用第二速度模型迁移地震数据。

公开(公告)号：US20160124103A1

公开(公告)日：2016-05-05

申请号：US14929218

申请日：2015-10-30

Applicant: WESTERNGECO L.L.C.

Inventor： Robin Fletcher ,  David Nichols ,  Maud Cavalca

IPC: G01V1/36 ,  G01V1/28

CPC classification number: G01V1/364 ,  G01V1/282 ,  G01V1/301 ,  G01V1/306 ,  G01V1/36 ,  G01V1/362 ,  G01V1/368 ,  G01V2210/51 ,  G01V2210/584 ,  G01V2210/614 ,  G01V2210/67 ,  G01V2210/679 ,  G01V2210/74

Abstract: Computing systems and methods for improving imaging of collected data are disclosed. In one embodiment, a first wavefield is propagated to obtain a first wavefield history; the first wavefield is again propagated to obtain a second wavefield history, wherein the propagation includes integration of one or more Q-effects; a first attenuated traveltime history is estimated based at least in part on the first and second wavefield histories; a first Q-model filter is calculated based at least in part on the first estimated attenuated traveltime; and a first adjusted wavefield is generated based at least in part on application of the first Q-model filter to the first wavefield. In some embodiments, an image is generated based at least on a first adjusted wavefield and a second wavefield.

公开(公告)号：US20150253445A1

公开(公告)日：2015-09-10

申请号：US14639717

申请日：2015-03-05

Applicant: WesternGeco L.L.C.

Inventor： Chuan Luo ,  Oleg Mishchenko ,  David Nichols ,  Marvin Decker

IPC: G01V1/34

CPC classification number: G01V1/345

Abstract: Systems, methods, and computer-readable media for visualizing a seismic attribute. The method includes obtaining data representing a seismic image based on seismic data of at least a portion of a subterranean volume, obtaining data representing a first seismic attribute calculated based on the seismic data, and determining one or more characteristics of one or more first attribute indicators based on the first seismic attribute. At least one of the one or more characteristics comprises an orientation of the one or more first attribute indicators. The method also includes displaying the one or more first attribute indicators in combination with the seismic image.

Abstract translation: 用于可视化地震属性的系统，方法和计算机可读介质。 该方法包括基于地下体积的至少一部分的地震数据获得表示地震图像的数据，获得表示基于地震数据计算的第一地震属性的数据，以及确定一个或多个第一属性指示符的一个或多个特征 基于第一个地震属性。 一个或多个特征中的至少一个包括一个或多个第一属性指示符的取向。 该方法还包括结合地震图像显示一个或多个第一属性指示符。

公开(公告)号：US10162070B2

公开(公告)日：2018-12-25

申请号：US13666801

申请日：2012-11-01

Applicant: WESTERNGECO L.L.C.

Inventor： David Nichols ,  Everett Mobley, Jr.

IPC: G01V1/00 ,  G01V1/28

Abstract: Acquired data that corresponds at least in part to a target structure is received. One or more subsets of a first type are formed from the acquired data. The one or more subsets of the first type are converted to one or more subsets of a second, different type.

公开(公告)号：US09599734B2

公开(公告)日：2017-03-21

申请号：US14529856

申请日：2014-10-31

Applicant: WesternGeco L.L.C.

Inventor： Maxim Protasov ,  Konstantin S. Osypov ,  David Nichols ,  Can Evren Yarman

IPC: G06T7/00 ,  G01V1/30 ,  G01V1/28

CPC classification number: G01V1/301 ,  G01V1/28 ,  G01V1/303 ,  G01V2210/671

Abstract: Computing systems and methods for improving processing of collected data are disclosed. In one embodiment, while ray-tracing through a sub-surface region, a frequency-dependent outgoing ray direction is computed from a point on an interface disposed in the sub-surface region when the ray tracing is at the interface.

公开(公告)号：US20150055833A1

公开(公告)日：2015-02-26

申请号：US14529856

申请日：2014-10-31

Applicant: WesternGeco L.L.C.

Inventor： Maxim Protasov ,  Konstantin S. Osypov ,  David Nichols ,  Can Evren Yarman

IPC: G01V1/30

CPC classification number: G01V1/301 ,  G01V1/28 ,  G01V1/303 ,  G01V2210/671

Abstract: Computing systems and methods for improving processing of collected data are disclosed. In one embodiment, while ray-tracing through a sub-surface region, a frequency-dependent outgoing ray direction is computed from a point on an interface disposed in the sub-surface region when the ray tracing is at the interface.

Abstract translation: 公开了用于改进收集数据处理的计算系统和方法。 在一个实施例中，当光线跟踪通过子表面区域时，当光线跟踪在界面处时，从设置在子表面区域中的界面上的点计算频率相关的输出射线方向。