公开(公告)号：US11313987B2

公开(公告)日：2022-04-26

申请号：US16639267

申请日：2017-08-17

申请人： Total S.A.

发明人： Jonathan Anthony Edgar ,  Thomas David Blanchard ,  Constantin Vili Gerea

IPC分类号： G01V1/30 ,  G01V1/00 ,  G01V1/18 ,  G01V1/28

摘要： Disclosed is a method and associated computer program and apparatus for characterising changes within a subsurface volume between a first time and a second time. The method comprises obtaining first seismic data corresponding to the first time and processing this data to obtain a seismic image of the subsurface volume. This processing is reversed for relevant portions of the seismic image to obtain relevant portions of first seismic data. Changes within the subsurface volume between the first time and the second time are characterised by estimating the changes between second seismic data corresponding to the second time and the relevant portions of first seismic data.

公开(公告)号：US10132945B2

公开(公告)日：2018-11-20

申请号：US15324284

申请日：2015-07-10

申请人： Total S.A.

发明人： Pierre Daniel Thore ,  Jonathan Anthony Edgar

IPC分类号： G01V1/30 ,  G01V1/28

摘要： Disclosed is a method for characterizing the evolution of a sub-surface volume. The method comprises providing a first and second surveys of the reservoir with a first and second sets of seismic traces, constructing an analytic filter operable to shift one or more seismic traces in dependence of a model parameter; and performing an inversion to obtain estimates of the model parameter such that the analytic filter aligns said first survey and said second survey. The analytic filter may be a plane wave destruction filter, and be such that the model parameter is a function of the analytic filter and is not a function of one or more of said second set of seismic traces.

公开(公告)号：US10705237B2

公开(公告)日：2020-07-07

申请号：US15324400

申请日：2015-07-10

申请人： Total S.A.

发明人： Pierre Daniel Thore ,  Jonathan Anthony Edgar

IPC分类号： G01V1/30

摘要： Disclosed is a method for characterizing the evolution of a subsurface volume over time. The method comprises providing a first and second surveys of the reservoir with a first and second sets of seismic traces, performing an inversion to obtain estimates of changes having occurred between said first time and said second time in terms of at least one model parameter; wherein the subsurface volume is divided into regions according to a high order discrete classification attributed in accordance with the region's geologic characteristics, and said inversion is constrained per region of subsurface volume. The regions of subsurface volume may be geological layers.