公开(公告)号：US20170235001A1

公开(公告)日：2017-08-17

申请号：US15502946

申请日：2014-08-15

Applicant: STATOIL PETROLEUM AS

Inventor： Adriana Citlali RAMÍREZ-PÉREZ ,  Torgeir WIIK ,  Fredrik ANDERSSON

IPC: G01V1/36 ,  G01V1/30

Abstract: The present invention relates to a method of processing seismic data. The method may include calculating a number of calculated structure tensors for each of a number of seismic data lines, the seismic data lines being spatially distributed about an area of the surface of the Earth. The method also may include interpolating the calculated structure tensors to find interpolated structure tensors in a region of the area between the lines of the seismic data lines, and calculating calculated seismic data from the interpolated structure tensors.

公开(公告)号：US20180136349A1

公开(公告)日：2018-05-17

申请号：US15572433

申请日：2015-05-08

Applicant: Statoil Petroleum AS

Inventor： Torgeir WIIK ,  Janniche Iren NORDSKAG ,  Anh Kiet NGUYEN ,  Emmanuel CAUSSE

IPC: G01V1/28 ,  G01V3/08

CPC classification number: G01V1/282 ,  G01V3/083 ,  G01V99/005 ,  G01V2210/66

Abstract: A method of estimating a set of physical parameters, the method comprising iteratively inverting an equation to minimise an error between simulated data and measured data and to provide an estimated set of physical parameters, wherein said iteratively inverting comprises at least a first inversion step and a second inversion step and wherein the simulated data depend on a model vector representing the set of physical parameters, applying a compression operator to the model vector representing the set of physical parameters to reduce the number of free variables and to produce a compressed model vector and varying the compression operator between the first inversion step and the second inversion step.

公开(公告)号：US20160334532A1

公开(公告)日：2016-11-17

申请号：US15110352

申请日：2014-01-08

Applicant: STATOIL PETROLEUM AS

Inventor： Torgeir WIIK ,  Eirik Øverland DISCHLER ,  Janniche Iren NORDSKAG ,  Anh Kiet NGUYEN

IPC: G01V3/08

CPC classification number: G01V3/083 ,  G01V2003/086

Abstract: A method of estimating electromagnetic parameters of a geological structure, comprising: providing controlled source electromagnetic, CSEM, data of the structure, calculating a numerical model representing electromagnetic parameters of the structure and generating simulated CSEM data, discretising the numerical model based on prior knowledge of the structure, defining a functional for minimising the distance between said simulated CSEM data and said CSEM data, wherein the functional comprises a regularisation term which depends on prior knowledge of said structure.

Abstract translation: 一种估计地质结构电磁参数的方法，包括：提供受控源电磁，CSEM，结构数据，计算表示该结构电磁参数和产生模拟CSEM数据的数值模型，基于先验知识 该结构定义用于最小化所述模拟CSEM数据与所述CSEM数据之间的距离的功能，其中所述功能包括依赖于所述结构的先验知识的正则化项。