公开(公告)号：US20170017005A1

公开(公告)日：2017-01-19

申请号：US15210111

申请日：2016-07-14

Applicant: CGG SERVICES SA

Inventor： Risto SILIQI ,  Damien GRENIE ,  Vetle VINJE ,  Fabrice MANDROUX

IPC: G01V1/38

CPC classification number: G01V1/3808

Abstract: Systems and methods for reducing survey time while enhancing acquired seismic data quality are provided. Data corresponding to plural source lines are acquired simultaneously, using sources at cross-line distance at least equal to their illumination width, with at least one source being towed above a streamer spread.

Abstract translation: 提供了减少测量时间同时提高采集地震数据质量的系统和方法。 使用至少等于它们的照明宽度的交叉距离的源同时获取对应于多个源极线的数据，至少一个源被拖曳在流光板上方。

公开(公告)号：US20160202369A1

公开(公告)日：2016-07-14

申请号：US14993579

申请日：2016-01-12

Applicant: CGG SERVICES SA

Inventor： Vetle VINJE

IPC: G01V1/28 ,  G01V1/36

CPC classification number: G01V1/28 ,  G01V1/36 ,  G01V1/3808

Abstract: A method for using an offset vector tile gather to image a subsurface defines an offset vector tile gather by selecting a plurality of seismic traces from recorded seismic data. Each seismic trace in the offset vector tile includes reflections from subsurface reflectors and reflection points at depths below the surface of the subsurface. Each reflection point is in a given seismic trace, and each given seismic trace extends from a seismic source to a seismic receiver. The reflection points define an offset vector tile having a source line span and a receiver line span. The source line span is equal to or greater than a distance between adjacent seismic receiver lines, and the receiver line span is less than a distance between adjacent seismic source lines. The offset vector tile gather is used to produce a three dimensional image of the subsurface.

Abstract translation: 使用偏移矢量瓦片聚集来对地下图像进行成像的方法通过从记录的地震数据中选择多个地震轨迹来定义偏移矢量瓦片集合。 偏移矢量瓦片中的每个地震迹线包括地下反射器和地下表面下方深度处的反射点的反射。 每个反射点在给定的地震轨迹中，并且每个给定的地震迹线从地震源延伸到地震接收器。 反射点定义具有源极线跨距和接收器线跨度的偏移矢量瓦片。 源极线跨度等于或大于相邻地震接收线之间的距离，并且接收线跨度小于相邻地震源线之间的距离。 偏移矢量瓦片聚集用于产生地下三维图像。