公开(公告)号：US20150378053A1

公开(公告)日：2015-12-31

申请号：US14767450

申请日：2014-02-07

Applicant: TOTAL S.A.

Inventor： Anahita ABADPOUR ,  Pierre BERGEY

IPC: G01V99/00

CPC classification number: G01V99/005 ,  G01V2210/61 ,  G01V2210/66 ,  G01V2210/663 ,  G01V2210/665

Abstract: Disclosed is a method of monitoring the behaviour of a subsurface volume. The method comprises transforming a single discrete parameter or an ensemble of discrete parameters describing an attribute of the subsurface volume, each discrete parameter having N possible discrete values with N ≧2, into N indicator parameters each having 2 possible discrete values; for each of the two value classes of each indicator parameter, determining the anisotropic distance to a value transition interface; transforming each of the indicator parameters into a corresponding continuous parameter using the determined anisotropic distance to the value transition interface; and using the continuous parameters in a history matching process.

Abstract translation: 公开了一种监测地下体积的行为的方法。 该方法包括将描述地下体积属性的离散参数的单个离散参数集合或具有N≥2的N个可能离散值的每个离散参数变换成具有2个可能离散值的N个指标参数; 对于每个指标参数的两个值类别中的每一个，确定各向异性距离到值转换界面; 使用所确定的与所述值过渡接口的各向异性距离将每个所述指标参数变换为相应的连续参数; 并在历史匹配过程中使用连续参数。

公开(公告)号：US20150369937A1

公开(公告)日：2015-12-24

申请号：US14767492

申请日：2014-02-07

Applicant: TOTAL S.A.

Inventor： Pierre BERGEY ,  Anahita ABADPOUR

IPC: G01V1/30 ,  G01V1/40 ,  G01V1/28

CPC classification number: G01V1/306 ,  G01V1/282 ,  G01V1/308 ,  G01V1/40

Abstract: Disclosed is a method monitoring changes in saturation of a subsurface volume. The method comprises: obtaining observed data of saturation behaviour from the subsurface volume over time; using one or more models, obtaining simulated data of saturation behaviour from the subsurface volume over time; and transforming each of the observed data and simulated data. The transformation is done such that in each case the data is described in terms of: a front location parameter, wherein a cell of the subsurface volume is attributed a value according to its location relative to a front of the fluid for which saturation is being monitored, and a sweep intensity parameter, wherein a cell of the subsurface volume is attributed a value according to either the observed saturation variation over a time period, or an estimated saturation variation over the time period, finally, a mismatch between saturation behaviour in said transformed observed data and saturation behaviour in said transformed simulated data over said time period is calculated.

Abstract translation: 公开了监测地下体积饱和度变化的方法。 该方法包括：随时间从地下体积获得饱和行为的观测数据; 使用一个或多个模型，从地下体积随时间获得饱和行为的模拟数据; 并转换观察到的数据和模拟数据。 进行转换，使得在每种情况下，数据以下述方式描述：前置位置参数，其中地下体积的单元根据其相对于正在监测饱和的流体的前部的位置归因于值 以及扫描强度参数，其中地下体积的细胞根据观察到的时间段上的饱和度变化或在该时间段内的估计的饱和度变化归因于一个值，最后，所述变换的饱和度行为之间的失配 计算在所述时间段内的所述变换的模拟数据中的观测数据和饱和行为。