Estimating petrophysical parameters and invasion profile using joint induction and pressure data inversion approach
    1.
    发明授权
    Estimating petrophysical parameters and invasion profile using joint induction and pressure data inversion approach 有权
    使用联合感应和压力数据反演方法估算岩石物理参数和入侵剖面

    公开(公告)号:US09176252B2

    公开(公告)日:2015-11-03

    申请号:US12607708

    申请日:2009-10-28

    IPC分类号: G01F25/00 G01V3/38 G01V3/28

    摘要: Methods and related systems are described relating to an inversion approach for interpreting the geophysical electromagnetic data. The inversion can be constrained by using a multiphase fluid flow simulator (incorporating pressure data if available) which simulates the fluid flow process and calculates the spatial distribution of the water saturation and the salt concentration, which are in turn transformed into the formation conductivity using a resistivity-saturation formula. In this way, the inverted invasion profile is consistent with the fluid flow physics and moreover accounts for gravity segregation effects. Jointly with the pressure data, the inversion estimates a parametric one-dimensional distribution of permeability and porosity. The fluid flow volume is directly inverted from the fluid-flow-constrained inversion of the electromagnetic data.

    摘要翻译: 描述了用于解释地球物理电磁数据的反演方法的方法和相关系统。 可以通过使用模拟流体流动过程并计算水饱和度和盐浓度的空间分布的多相流体流动模拟器(包括压力数据(如果可用的话))来限制反转,其进而通过使用 电阻率 - 饱和度公式。 以这种方式,反向侵入曲线与流体物理学一致,并且还考虑到重力分离效应。 与压力数据联合,反演估计了渗透率和孔隙度的参数一维分布。 流体流量与电磁数据的流体流限制反转直接相反。

    ESTIMATING PETROPHYSICAL PARAMETERS AND INVASION PROFILE USING JOINT INDUCTION AND PRESSURE DATA INVERSION APPROACH
    2.
    发明申请
    ESTIMATING PETROPHYSICAL PARAMETERS AND INVASION PROFILE USING JOINT INDUCTION AND PRESSURE DATA INVERSION APPROACH 有权
    使用联合感应和压力数据反演方法估算物理参数和入侵轮廓

    公开(公告)号:US20100185393A1

    公开(公告)日:2010-07-22

    申请号:US12607708

    申请日:2009-10-28

    IPC分类号: G01V3/38 G01V3/30

    摘要: Methods and related systems are described relating to an inversion approach for interpreting the geophysical electromagnetic data. The inversion can be constrained by using a multiphase fluid flow simulator (incorporating pressure data if available) which simulates the fluid flow process and calculates the spatial distribution of the water saturation and the salt concentration, which are in turn transformed into the formation conductivity using a resistivity-saturation formula. In this way, the inverted invasion profile is consistent with the fluid flow physics and moreover accounts for gravity segregation effects. Jointly with the pressure data, the inversion estimates a parametric one-dimensional distribution of permeability and porosity. The fluid flow volume is directly inverted from the fluid-flow-constrained inversion of the electromagnetic data. The approach is not limited by the traditional interpretation of the formation test, which is based on a single-phase model without taking into account invasion or assuming that the fluid, for example mud-filtrate, has been cleaned up from the formation testing zone. The joint inversion of the electromagnetic and pressure data provides for a more reliable interpretation of formation permeability. One advantage of the approaches described herein, is its possible generalization to three-dimensional geometries, for example dipping beds and highly deviated wells.

    摘要翻译: 描述了用于解释地球物理电磁数据的反演方法的方法和相关系统。 可以通过使用模拟流体流动过程并计算水饱和度和盐浓度的空间分布的多相流体流动模拟器(包括压力数据(如果可用的话))来限制反转,其进而通过使用 电阻率 - 饱和度公式。 以这种方式,反向侵入曲线与流体物理学一致,并且还考虑到重力分离效应。 与压力数据联合,反演估计了渗透率和孔隙度的参数一维分布。 流体流量与电磁数据的流体流限制反转直接相反。 该方法不受传统的形成测试的解释的限制,该方法基于单相模型,而不考虑入侵或假设流体,例如泥浆滤液已经从地层测试区域清除。 电磁和压力数据的联合反演提供了对地层渗透率的更可靠的解释。 本文描述的方法的一个优点是其可能推广到三维几何形状,例如浸渍床和高度偏斜的孔。

    Method for reservoir characterization and monitoring including deep reading quad combo measurements
    3.
    发明申请
    Method for reservoir characterization and monitoring including deep reading quad combo measurements 有权
    储层表征和监测方法,包括深度读数四组合测量

    公开(公告)号:US20090164187A1

    公开(公告)日:2009-06-25

    申请号:US12004792

    申请日:2007-12-21

    IPC分类号: G06G7/50

    CPC分类号: E21B43/00

    摘要: A method is disclosed for building a predictive or forward model adapted for predicting the future evolution of a reservoir, comprising: integrating together a plurality of measurements thereby generating an integrated set of deep reading measurements, the integrated set of deep reading measurements being sufficiently deep to be able to probe the reservoir and being self-sufficient in order to enable the building of a reservoir model and its associated parameters; generating a reservoir model and associated parameters in response to the set of deep reading measurements; and receiving, by a reservoir simulator, the reservoir model and, responsive thereto, generating, by the reservoir simulator, the predictive or forward model.

    摘要翻译: 公开了一种用于构建适于预测储存器的未来演变的预测或前向模型的方法,包括:将多个测量结合在一起,从而产生一组集成的深度读数测量,所述深度读数测量的集成集合足够深 能够探测储层并自给自足,以便建立储层模型及其相关参数; 响应于一组深度读数测量产生储层模型和相关参数; 并且通过储层模拟器接收储层模型,并且响应于此,由储层模拟器产生预测模型或正向模型。

    Method for reservoir characterization and monitoring including deep reading quad combo measurements
    4.
    发明授权
    Method for reservoir characterization and monitoring including deep reading quad combo measurements 有权
    储层表征和监测方法,包括深度读数四组合测量

    公开(公告)号:US08738341B2

    公开(公告)日:2014-05-27

    申请号:US12004792

    申请日:2007-12-21

    IPC分类号: G06G7/50 G06G7/57 G06G7/48

    CPC分类号: E21B43/00

    摘要: A method is disclosed for building a predictive or forward model adapted for predicting the future evolution of a reservoir, comprising: integrating together a plurality of measurements thereby generating an integrated set of deep reading measurements, the integrated set of deep reading measurements being sufficiently deep to be able to probe the reservoir and being self-sufficient in order to enable the building of a reservoir model and its associated parameters; generating a reservoir model and associated parameters in response to the set of deep reading measurements; and receiving, by a reservoir simulator, the reservoir model and, responsive thereto, generating, by the reservoir simulator, the predictive or forward model.

    摘要翻译: 公开了一种用于构建适于预测储存器的未来演变的预测或前向模型的方法,包括:将多个测量结合在一起,从而产生一组集成的深度读数测量,所述深度读数测量的集成集合足够深 能够探测储层并自给自足,以便建立储层模型及其相关参数; 响应于一组深度读数测量产生储层模型和相关参数; 并且通过储层模拟器接收储层模型,并且响应于此,由储层模拟器产生预测模型或正向模型。

    CHARACTERIZING AN EARTH SUBTERRANEAN STRUCTURE BY ITERATIVELY PERFORMING INVERSION BASED ON A FUNCTION
    5.
    发明申请
    CHARACTERIZING AN EARTH SUBTERRANEAN STRUCTURE BY ITERATIVELY PERFORMING INVERSION BASED ON A FUNCTION 有权
    通过基于功能的迭代执行反演来表征地下层结构

    公开(公告)号:US20090157320A1

    公开(公告)日:2009-06-18

    申请号:US12142216

    申请日:2008-06-19

    IPC分类号: G01V3/30 G06F19/00

    CPC分类号: G01V3/38 G01V11/00

    摘要: To characterize an earth subterranean structure using a measurement assembly including electromagnetic (EM) receivers and one or more EM sources, measured voltage data collected by EM receivers in response to transmission by one or more EM sources is received. Based on a model, predicted EM data is computed. Inversion is iteratively performed according to a function that computes a difference between the measured voltage data and a product of a term containing the predicted EM data and a term containing distortion data that accounts at least for distortion effect by an environment of the measurement assembly. The inversion is iteratively performed to solve for parameters of the model and the distortion data.

    摘要翻译: 为了使用包括电磁(EM)接收器和一个或多个EM源的测量组件来表征地球地下结构,接收由EM接收机响应于一个或多个EM源的传输而收集的测量电压数据。 基于模型,计算预测的EM数据。 根据计算测量电压数据与包含预测的EM数据的术语的乘积和包含至少考虑到测量组件的环境的失真效应的失真数据的术语的项的迭代执行反转。 迭代执行反演以求解模型的参数和失真数据。

    Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys
    6.
    发明授权
    Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys 有权
    用于消除电磁成像测量中导电壳体和井筒的影响和表面异质性的方法和系统

    公开(公告)号:US07991553B2

    公开(公告)日:2011-08-02

    申请号:US12142408

    申请日:2008-06-19

    IPC分类号: G01V1/40

    CPC分类号: G01V3/30

    摘要: Characterizing a reservoir with electromagnetic imaging surveys includes normalizing measured voltage data by transmitter moment, sorting the normalized voltage data into common receiver profiles, densely resampling transmitter locations using common positions for the receiver profiles, coarsely resampling the data at discreet transmitter locations, defining a starting model for inversion, weighting the data by a factor, converting the normalized voltage data to ratios, calculating a conductivity image using a ratio inversion method, and verifying that an inversion has converged and the image is geologically reasonable. The image can then be displayed. The invention can be used for cross-well, surface-to-borehole, borehole-to-surface, and single-well (borehole-to-borehole) measurements measurements by which the effects of steel casing are reduced.

    摘要翻译: 用电磁成像测量表征储层包括通过发射机时刻归一化测量的电压数据,将归一化电压数据分类为公共接收机配置文件,使用接收机配置文件的公共位置密集地重新采样发射机位置,在偏心的发射机位置粗略重新采样数据, 用于反演的模型,通过因子对数据进行加权,将归一化电压数据转换为比率,使用比例反演方法计算电导率图像,以及验证反演已经收敛并且图像在地理上是合理的。 然后可以显示图像。 本发明可用于交叉井,井对井,钻孔到地面和单井(井眼到井眼)的测量测量,通过该测量可以减少钢壳的影响。

    Method and System for Removing Effects of Conductive Casings and Wellbore and Surface Heterogeneity in Electromagnetic Imaging Surveys
    7.
    发明申请
    Method and System for Removing Effects of Conductive Casings and Wellbore and Surface Heterogeneity in Electromagnetic Imaging Surveys 有权
    导电套管和井筒的影响方法与系统及电磁成像测量中的表面异质性

    公开(公告)号:US20090005992A1

    公开(公告)日:2009-01-01

    申请号:US11768975

    申请日:2007-06-27

    IPC分类号: G01V3/38

    CPC分类号: G01V3/30

    摘要: Characterizing a reservoir with electromagnetic imaging surveys includes normalizing measured voltage data by transmitter moment, sorting the normalized voltage data into common receiver profiles, densely resampling transmitter locations using common positions for the receiver profiles, coarsely resampling the data at discreet transmitter locations, defining a starting model for inversion, weighting the data by a factor, converting the normalized voltage data to ratios, calculating a conductivity image using a ratio inversion method, and verifying that an inversion has converged and the image is geologically reasonable. The image can then be displayed. The invention can be used for cross-well, surface-to-borehole, and borehole-to-surface measurements by which the effects of steel casing are reduced.

    摘要翻译: 用电磁成像测量表征储层包括通过发射机时刻归一化测量的电压数据,将归一化电压数据分类为公共接收机配置文件,使用接收机配置文件的公共位置密集地重新采样发射机位置,在偏心的发射机位置粗略重新采样数据, 用于反演的模型,通过因子对数据进行加权,将归一化电压数据转换为比率,使用比例反演方法计算电导率图像,以及验证反演已经收敛并且图像在地理上是合理的。 然后可以显示图像。 本发明可用于交叉井,井对井和钻孔到地面的测量,通过该测量钢壳的作用降低。

    DATA SET INVERSION USING SOURCE-RECEIVER COMPRESSION
    8.
    发明申请
    DATA SET INVERSION USING SOURCE-RECEIVER COMPRESSION 有权
    使用源接收器压缩的数据集反转

    公开(公告)号:US20110246140A1

    公开(公告)日:2011-10-06

    申请号:US12751188

    申请日:2010-03-31

    IPC分类号: G06F17/11 G01V9/00

    CPC分类号: G01V1/28 G01V2210/67

    摘要: Source-receiver compression is used to help design surveys and mitigate the computational costs of data set inversion. The source-receiver compression is based on data redundancy and sensitivity. More particularly, a compressed source array is produced for minimum redundancy and maximum sensitivity to reservoir model parameters. The synthesized transmitter array has a reduced number of sources, thereby reducing the number of forward model simulations needed to carry out the inversion. Furthermore, the data collected at the receivers employed in the survey can be compressed. This has the implication of reducing the computational cost of constructing the Jacobian matrix and inverting the corresponding Hessian matrix.

    摘要翻译: 源接收器压缩用于帮助设计调查并减轻数据集反演的计算成本。 源接收器压缩基于数据冗余和灵敏度。 更具体地,生产压缩源阵列用于对储层模型参数的最小冗余和最大灵敏度。 合成的发射机阵列具有减少的源数量,从而减少了进行反演所需的正向模型仿真的数量。 此外,可以压缩在调查中使用的接收器收集的数据。 这具有减少构造雅可比矩阵并反转相应的赫西矩阵的计算成本的含义。

    Characterizing an Earth Subterranean Structure by Iteratively Performing Inversion Based on a Function
    9.
    发明申请
    Characterizing an Earth Subterranean Structure by Iteratively Performing Inversion Based on a Function 有权
    基于函数迭代执行反演来表征地球地下结构

    公开(公告)号:US20100305863A1

    公开(公告)日:2010-12-02

    申请号:US12791655

    申请日:2010-06-01

    IPC分类号: G01V3/18 G06F19/00

    CPC分类号: G01V11/00 G01V3/38

    摘要: To characterize an earth subterranean structure using a measurement assembly including electromagnetic (EM) receivers and one or more EM sources, measured voltage data collected by EM receivers in response to transmission by one or more EM sources is received. Based on a model, predicted EM data is computed. Inversion is iteratively performed according to a function that computes a difference between the measured voltage data and a product of a term containing the predicted EM data and a term containing distortion data that accounts at least for distortion effect by an environment of the measurement assembly. The inversion is iteratively performed to solve for parameters of the model and the distortion data.

    摘要翻译: 为了使用包括电磁(EM)接收器和一个或多个EM源的测量组件来表征地球地下结构,接收由EM接收机响应于一个或多个EM源的传输而收集的测量电压数据。 基于模型,计算预测的EM数据。 根据计算测量电压数据与包含预测的EM数据的术语的乘积和包含至少考虑到测量组件的环境的失真效应的失真数据的术语的项的迭代执行反转。 迭代执行反演以求解模型的参数和失真数据。

    Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys
    10.
    发明授权
    Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys 有权
    用于消除电磁成像测量中导电壳体和井筒的影响和表面异质性的方法和系统

    公开(公告)号:US07565244B2

    公开(公告)日:2009-07-21

    申请号:US11768975

    申请日:2007-06-27

    IPC分类号: G01V1/40

    CPC分类号: G01V3/30

    摘要: Characterizing a reservoir with electromagnetic imaging surveys includes normalizing measured voltage data by transmitter moment, sorting the normalized voltage data into common receiver profiles, densely resampling transmitter locations using common positions for the receiver profiles, coarsely resampling the data at discreet transmitter locations, defining a starting model for inversion, weighting the data by a factor, converting the normalized voltage data to ratios, calculating a conductivity image using a ratio inversion method, and verifying that an inversion has converged and the image is geologically reasonable. The image can then be displayed. The invention can be used for cross-well, surface-to-borehole, and borehole-to-surface measurements by which the effects of steel casing are reduced.

    摘要翻译: 用电磁成像测量表征储层包括通过发射机时刻归一化测量的电压数据,将归一化电压数据分类为公共接收机配置文件,使用接收机配置文件的公共位置密集地重新采样发射机位置,在偏心的发射机位置粗略重新采样数据, 用于反演的模型,通过因子对数据进行加权,将归一化电压数据转换为比率,使用比例反演方法计算电导率图像,以及验证反演已经收敛并且图像在地理上是合理的。 然后可以显示图像。 本发明可用于交叉井,井对井和钻孔到地面的测量,通过该测量钢壳的作用降低。