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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.
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.
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公开(公告)号：US10393900B2
公开(公告)日：2019-08-27
申请号：US15117370
申请日：2015-02-09
申请人： Total S.A.
IPC分类号： G01V1/30
摘要： Disclosed is a method for characterizing the evolution of a reservoir by determining a seismic wavelet which links observed seismic data to a sequence of reflectivities. The method comprises obtaining seismic data (200) representing seismic changes which have occurred between a first time and a second time, said seismic data comprising a plurality of seismic traces; and performing an optimization operation simultaneously (230) on the seismic traces so as to optimize for said seismic wavelet. The optimization operation may be performed without using known reflectivity data as an input.
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公开(公告)号：US10067264B2
公开(公告)日：2018-09-04
申请号：US14895960
申请日：2014-05-23
申请人： Total S.A.
CPC分类号： G01V99/005 , G01V1/306 , G01V1/308 , G01V2210/6122 , G01V2210/614 , G01V2210/6169 , G01V2210/6242 , G06F17/18
摘要： Disclosed is a method a seismic inversion for petrophysical properties of a subsurface volume comprising the steps of: obtaining petrophysical data relating to valid geological and/or dynamical scenarios, converting this data into valid combinations of elastic parameters; projecting the valid combinations of elastic parameters onto a spherical plot; and determining a penalty term from the distances between each cell of the spherical plot and the nearest valid combination of elastic parameters within the subsurface volume. Valid geological and/or dynamical scenarios comprise those which are petrophysically possible. The penalty term is then used to constrain an inversion minimizing a cost function associated with seismic mismatch between two or more seismic surveys.
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4.发明授权公开(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.
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.
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公开(公告)号：US10254441B2
公开(公告)日：2019-04-09
申请号：US14780582
申请日：2014-03-18
申请人： Total S.A.
发明人： Pierre Daniel Thore
摘要： Disclosed is a method of modelling a subsurface volume, and a corresponding computer program and apparatus. The method comprises defining a regular planar grid of regularly arranged locations in the two dimensions substantially parallel to the surface, and calculating a plurality of one dimensional arrays, each one dimensional array extending from a different one of the regularly arranged locations, in the direction from surface to subsurface. Each of the one dimensional arrays comprises a plurality of one dimensional cells, wherein the cells are delineated according to actual geological features of the subsurface volume.
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公开(公告)号：US20160116637A1
公开(公告)日：2016-04-28
申请号：US14895960
申请日：2014-05-23
申请人： TOTAL S.A.
CPC分类号： G01V99/005 , G01V1/306 , G01V1/308 , G01V2210/6122 , G01V2210/614 , G01V2210/6169 , G01V2210/6242 , G06F17/18
摘要： Disclosed is a method a seismic inversion for petrophysical properties of a subsurface volume comprising the steps of: obtaining petrophysical data relating to valid geological and/or dynamical scenarios, converting this data into valid combinations of elastic parameters; projecting the valid combinations of elastic parameters onto a spherical plot; and determining a penalty term from the distances between each cell of the spherical plot and the nearest valid combination of elastic parameters within the subsurface volume. Valid geological and/or dynamical scenarios comprise those which are petrophysically possible. The penalty term is then used to constrain an inversion minimising a cost function associated with seismic mismatch between two or more seismic surveys.
摘要翻译： 公开了一种用于地下体积的岩石物理性质的地震反演方法，包括以下步骤：获得与有效地质和/或动力场景有关的岩石物理数据，将该数据转换成弹性参数的有效组合; 将弹性参数的有效组合投影到球形图上; 并且从球面图的每个单元格之间的距离和地下体积内的最接近的弹性参数的有效组合之间确定惩罚项。 有效的地质和/或动力场景包括具有岩石物理可能性的场景。 惩罚项然后被用来约束一个最小化与两个或更多次地震勘测之间的地震失配相关联的成本函数的反演。
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公开(公告)号：US20160054472A1
公开(公告)日：2016-02-25
申请号：US14780582
申请日：2014-03-18
申请人： TOTAL S.A.
发明人： Pierre Daniel Thore
CPC分类号： G01V11/00 , G01V99/005 , G01V2210/614
摘要： Disclosed is a method of modelling a subsurface volume, and a corresponding computer program and apparatus. The method comprises defining a regular planar grid of regularly arranged locations in the two dimensions substantially parallel to the surface, and calculating a plurality of one dimensional arrays, each one dimensional array extending from a different one of the regularly arranged locations, in the direction from surface to subsurface. Each of the one dimensional arrays comprises a plurality of one dimensional cells, wherein the cells are delineated according to actual geological features of the subsurface volume.
摘要翻译： 公开了一种对地下体积进行建模的方法，以及相应的计算机程序和装置。 该方法包括在基本上平行于表面的两维中定义规则排列的位置的规则平面网格，以及计算多个一维阵列，每个一维阵列从规则排列的位置的不同的一个方向延伸， 表面到地下。 每个一维阵列包括多个一维细胞，其中根据地下体积的实际地质特征描绘细胞。
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