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：US09513390B2

公开(公告)日：2016-12-06

申请号：US14531510

申请日：2014-11-03

Applicant: WESTERNGECO L.L.C.

Inventor： Colin Thomson ,  Philip Kitchenside ,  Robin Fletcher

IPC: G01V1/28 ,  G01V1/30 ,  G01V1/36

CPC classification number: G01V1/30 ,  G01V1/36 ,  G01V2210/67 ,  G01V2210/679

Abstract: Systems and methods for compensating for spatial and slowness or angle blurring of plane-wave reflection coefficients in imaging. A wave field may be determined at a reference depth proximate to a reflector for a shot record. A receiver-side blurring function may be determined at the reference depth. An aggregate blurring function may be constructed based at least partially on the source wave field and the receiver-side blurring function. A plane-wave reflection coefficients may be determined based at least partially on the aggregate blurring function.

Abstract translation: 用于补偿成像中平面波反射系数的空间和慢度或角度模糊的系统和方法。 可以在靠近用于射击记录的反射器的参考深度处确定波场。 可以在参考深度处确定接收机侧模糊功能。 可以至少部分地基于源波场和接收器侧模糊功能来构造聚合模糊功能。 可以至少部分地基于聚合模糊功能来确定平面波反射系数。

公开(公告)号：US20160125574A1

公开(公告)日：2016-05-05

申请号：US14531510

申请日：2014-11-03

Applicant: WESTERNGECO L.L.C.

Inventor： Colin Thomson ,  Philip Kitchenside ,  Robin Fletcher

IPC: G06T5/00

CPC classification number: G01V1/30 ,  G01V1/36 ,  G01V2210/67 ,  G01V2210/679

Abstract: Systems and methods for compensating for spatial and slowness or angle blurring of plane-wave reflection coefficients in imaging. A wave field may be determined at a reference depth proximate to a reflector for a shot record. A receiver-side blurring function may be determined at the reference depth. An aggregate blurring function may be constructed based at least partially on the source wave field and the receiver-side blurring function. A plane-wave reflection coefficients may be determined based at least partially on the aggregate blurring function.

Abstract translation: 用于补偿成像中平面波反射系数的空间和慢度或角度模糊的系统和方法。 可以在靠近用于射击记录的反射器的参考深度处确定波场。 可以在参考深度处确定接收机侧模糊功能。 可以至少部分地基于源波场和接收器侧模糊功能来构造聚合模糊功能。 可以至少部分地基于聚合模糊功能来确定平面波反射系数。

公开(公告)号：US20150276957A1

公开(公告)日：2015-10-01

申请号：US14668012

申请日：2015-03-25

Applicant: WesternGeco L.L.C.

Inventor： Philippe Caprioli ,  Robin Fletcher ,  Xiang Du

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V1/282 ,  G01V1/38 ,  G01V2210/20 ,  G01V2210/51 ,  G01V2210/56 ,  G01V2210/74

Abstract: A technique includes determining an image of a subsurface geologic region of interest, where the image represents at least in part ghost energy that is attributable to reflections caused by a reflecting interface. The technique includes deghosting the image, which includes processing data representing the image in a processor-based machine to determine at least one impulse response of a modeling and migration of at least one point scatterer for the region and use the impulse response(s) to attenuate the ghost energy.

Abstract translation: 一种技术包括确定感兴趣的地下地质区域的图像，其中图像至少部分地归因于由反射界面引起的反射的重影能量。 该技术包括消除图像的虚反射，其包括在基于处理器的机器中处理表示图像的数据，以确定该区域的至少一个点散射体的建模和迁移的至少一个脉冲响应，并使用脉冲响应 衰减鬼能量。