公开(公告)号：US07693677B2

公开(公告)日：2010-04-06

申请号：US11948316

申请日：2007-11-30

申请人： Patrick Egermann ,  Mickaele Le Ravalec ,  Amir Soltani

发明人： Patrick Egermann ,  Mickaele Le Ravalec ,  Amir Soltani

IPC分类号： G01N15/08

CPC分类号： G01N33/24 ,  G01N15/0826 ,  G01N15/088 ,  G01N2015/0846

摘要： The invention relates to a method having applications for oil exploration and CO2 storage of determining the three-dimensional distribution of the absolute permeability of a heterogeneous sample. The method includes: determining a 3D porosity map of the sample; carrying out a viscous miscible displacement experiment during which the evolution of the differential pressure on either side of the sample is determined; from this evolution, determining a 1D absolute permeability profile along the sample and constructing a first 3D permeability map from the 3D porosity map; estimating a simulated differential pressure by simulating numerically a viscous miscible test from the first permeability map and from the 1D permeability profile; determining the three-dimensional distribution of the absolute permeability of the sample by modifying at least once the first permeability map so as to minimize the difference between the simulated differential pressure and the differential pressure measured over the course of time.

摘要翻译： 本发明涉及一种具有石油勘探和CO2储存应用的方法，用于确定异质样品的绝对渗透率的三维分布。 该方法包括：确定样品的3D孔隙度图; 进行粘性混溶位移实验，确定样品两侧压差的演变; 从该演化，确定沿着样本的1D绝对磁导率分布，并从3D孔隙图构造第一3D渗透率图; 通过从第一渗透率图和1D渗透率分布数值模拟粘性混溶试验来估算模拟压差; 通过修改至少一次第一磁导率图来确定样品的绝对磁导率的三维分布，以便最小化在时间上测量的模拟差压和差压之间的差异。

公开(公告)号：US20080134760A1

公开(公告)日：2008-06-12

申请号：US11948316

申请日：2007-11-30

申请人： Patrick Egermann ,  Mickaele Le Ravalec ,  Amir Soltani

发明人： Patrick Egermann ,  Mickaele Le Ravalec ,  Amir Soltani

IPC分类号： G01N15/08

CPC分类号： G01N33/24 ,  G01N15/0826 ,  G01N15/088 ,  G01N2015/0846

摘要： The invention relates to a method having applications for oil exploration and CO2 storage of determining the three-dimensional distribution of the absolute permeability of a heterogeneous sample. The method includes: determining a 3D porosity map of the sample; carrying out a viscous miscible displacement experiment during which the evolution of the differential pressure on either side of the sample is determined; from this evolution, determining a 1D absolute permeability profile along the sample and constructing a first 3D permeability map from the 3D porosity map; estimating a simulated differential pressure by simulating numerically a viscous miscible test from the first permeability map and from the 1D permeability profile; determining the three-dimensional distribution of the absolute permeability of the sample by modifying at least once the first permeability map so as to minimize the difference between the simulated differential pressure and the differential pressure measured over the course of time.

摘要翻译： 本发明涉及一种具有用于石油勘探和CO 2储存的方法，该方法用于确定异质样品的绝对渗透率的三维分布。 该方法包括：确定样品的3D孔隙度图; 进行粘性混溶位移实验，确定样品两侧压差的演变; 从该演化，确定沿着样本的1D绝对磁导率分布，并从3D孔隙图构造第一3D渗透率图; 通过从第一渗透率图和1D渗透率分布数值模拟粘性混溶试验来估算模拟压差; 通过修改至少一次第一磁导率图来确定样品的绝对磁导率的三维分布，以便最小化在时间上测量的模拟差压和差压之间的差异。