SPACE-TIME SURROGATE MODELS OF SUBTERRANEAN REGIONS
    1.
    发明申请
    SPACE-TIME SURROGATE MODELS OF SUBTERRANEAN REGIONS 审中-公开
    亚太地区空间时空模式

    公开(公告)号:US20150226878A1

    公开(公告)日:2015-08-13

    申请号:US14691321

    申请日:2015-04-20

    IPC分类号: G01V99/00 G06F17/10

    摘要: Methods for creating and using space-time surrogate models of subsurface regions, such as subsurface regions containing at least one hydrocarbon formation. The created surrogate models are explicit models that may be created from implicit models, such as computationally intensive full-physics models. The space-time surrogate models are parametric with respect to preselected variables, such as space, state, and/or design variables, while also indicating responsiveness of the preselected variables with respect to time. In some embodiments, the space-time surrogate model may be parametric with respect to preselected variables as well as to time. Methods for updating and evolving models of subsurface regions are also disclosed.

    摘要翻译: 用于创建和使用地下区域的时空替代模型的方法,例如包含至少一个烃地层的地下区域。 创建的代理模型是可以从隐式模型创建的显式模型,例如计算密集型全物理模型。 相对于预选变量,例如空间,状态和/或设计变量,时空替代模型是参数化的,同时还指示预选变量相对于时间的响应性。 在一些实施例中,时空替代模型可以参考预先选择的变量以及时间。 还公开了更新和演进地下地区模型的方法。

    Space-Time Surrogate Models of Subterranean Regions
    3.
    发明申请
    Space-Time Surrogate Models of Subterranean Regions 审中-公开
    地下地区时空替代模型

    公开(公告)号:US20110024125A1

    公开(公告)日:2011-02-03

    申请号:US12780377

    申请日:2010-05-14

    IPC分类号: G06G7/50 E21B43/00

    摘要: Methods for creating and using space-time surrogate models of subsurface regions, such as subsurface regions containing at least one hydrocarbon formation. The created surrogate models are explicit models that may be created from implicit models, such as computationally intensive full-physics models. The space-time surrogate models are parametric with respect to preselected variables, such as space, state, and/or design variables, while also indicating responsiveness of the preselected variables with respect to time. In some embodiments, the space-time surrogate model may be parametric with respect to preselected variables as well as to time. Methods for updating and evolving models of subsurface regions are also disclosed.

    摘要翻译: 用于创建和使用地下区域的时空替代模型的方法,例如包含至少一个烃地层的地下区域。 创建的代理模型是可以从隐式模型创建的显式模型,例如计算密集型全物理模型。 相对于预选变量,例如空间,状态和/或设计变量,时空替代模型是参数化的,同时还指示预选变量相对于时间的响应性。 在一些实施例中,时空替代模型可以参考预先选择的变量以及时间。 还公开了更新和演进地下地区模型的方法。

    Method For Modeling Deformation In Subsurface Strata
    4.
    发明申请
    Method For Modeling Deformation In Subsurface Strata 审中-公开
    地下地层变形建模方法

    公开(公告)号:US20130275101A1

    公开(公告)日:2013-10-17

    申请号:US13914222

    申请日:2013-06-10

    IPC分类号: G06F17/50

    摘要: A method for modeling deformation in subsurface strata, including defining physical boundaries for a geomechanical system. The method also includes acquiring one or more mechanical properties of the subsurface strata within the physical boundaries, and acquiring one or more thermal properties of the subsurface strata within the physical boundaries. The method also includes creating a computer-implemented finite element analysis program representing the geomechanical system and defining a plurality of nodes representing points in space, with each node being populated with at least one of each of the mechanical properties and the thermal properties. The program solves for in situ stress at selected nodes within the mesh.

    摘要翻译: 一种模拟地下地层变形的方法,包括界定地质力学系统的物理边界。 该方法还包括获取物理边界内的地下地层的一个或多个机械属性,以及获取物理边界内的地下地层的一个或多个热性质。 该方法还包括创建表示地质力学系统的计算机实现的有限元分析程序并且定义表示空间中的点的多个节点,其中每个节点都填充有机械属性和热性质中的每一个中的至少一个。 该程序解决了网格内选定节点处的原位应力。

    Method For Modeling Deformation In Subsurface Strata
    6.
    发明申请
    Method For Modeling Deformation In Subsurface Strata 有权
    地下地层变形建模方法

    公开(公告)号:US20110166843A1

    公开(公告)日:2011-07-07

    申请号:US13053860

    申请日:2011-03-22

    IPC分类号: G06G7/48 G06F19/00 G01V9/00

    摘要: A method for modeling deformation in subsurface strata, including defining physical boundaries for a geomechanical system. The method also includes acquiring one or more mechanical properties of the subsurface strata within the physical boundaries, and acquiring one or more thermal properties of the subsurface strata within the physical boundaries. The method also includes creating a computer-implemented finite element analysis program representing the geomechanical system and defining a plurality of nodes representing points in space, with each node being populated with at least one of each of the mechanical properties and the thermal properties. The program solves for in situ stress at selected nodes within the mesh.

    摘要翻译: 一种模拟地下地层变形的方法,包括界定地质力学系统的物理边界。 该方法还包括获取物理边界内的地下地层的一个或多个机械属性,以及获取物理边界内的地下地层的一个或多个热性质。 该方法还包括创建表示地质力学系统的计算机实现的有限元分析程序并且定义表示空间中的点的多个节点,其中每个节点都填充有机械属性和热性质中的每一个中的至少一个。 该程序解决了网格内选定节点处的原位应力。

    Method for modeling deformation in subsurface strata
    7.
    发明授权
    Method for modeling deformation in subsurface strata 有权
    地下地层变形模拟方法

    公开(公告)号:US09164194B2

    公开(公告)日:2015-10-20

    申请号:US13914222

    申请日:2013-06-10

    摘要: A method for modeling deformation in subsurface strata, including defining physical boundaries for a geomechanical system. The method also includes acquiring one or more mechanical properties of the subsurface strata within the physical boundaries, and acquiring one or more thermal properties of the subsurface strata within the physical boundaries. The method also includes creating a computer-implemented finite element analysis program representing the geomechanical system and defining a plurality of nodes representing points in space, with each node being populated with at least one of each of the mechanical properties and the thermal properties. The program solves for in situ stress at selected nodes within the mesh.

    摘要翻译: 一种模拟地下地层变形的方法,包括界定地质力学系统的物理边界。 该方法还包括获取物理边界内的地下地层的一个或多个机械属性,以及获取物理边界内的地下地层的一个或多个热性质。 该方法还包括创建表示地质力学系统的计算机实现的有限元分析程序并且定义表示空间中的点的多个节点,其中每个节点都填充有机械属性和热性质中的每一个中的至少一个。 该程序解决了网格内选定节点处的原位应力。

    Method For Predicting Well Reliability By Computer Simulation
    8.
    发明申请
    Method For Predicting Well Reliability By Computer Simulation 有权
    通过计算机模拟预测井可靠性的方法

    公开(公告)号:US20100204972A1

    公开(公告)日:2010-08-12

    申请号:US12602622

    申请日:2008-06-13

    IPC分类号: G06G7/48

    摘要: Methods of predicting earth stresses in response to pore pressure changes in a hydrocarbon-bearing reservoir within a geomechanical system, include establishing physical boundaries for the geomechanical system and acquiring reservoir characteristics. Geomechanical simulations simulate the effects of changes in reservoir characteristics on stress in rock formations within the physical boundaries to determine the rock formation strength at selected nodes in the reservoir. The strength of the rock formations at the nodes is represented by an effective strain (εeff), which includes a compaction strain (εc) and out-of-plane shear strains (γ1-3, Y2-3) at a nodal point. The methods further include determining an effective strain criteria (εeffcr) from a history of well failures in the physical boundaries. The effective strain (εeffcr) at a selected nodal point is compared with the effective strain criteria (εeffcr) to determine if the effective strain (εeff) exceeds the effective strain criteria (εeffcr).

    摘要翻译: 在地质力学系统中预测地球应力响应孔隙压力变化的方法包括建立地质力学系统的物理边界并获取储层特征。 地质力学模拟模拟储层特征变化对物理边界内岩层应力的影响,以确定储层选定节点的岩层强度。 在节点处的岩层的强度由有效应变(&egr. eff)表示,其包括压实应变(&egr; c)和面外剪切应变(γ1-3,Y2-3) 节点 这些方法还包括从物理边界的井故障历史中确定有效应变标准(&egr。effcr)。 将有效应变(&egr。effcr)与有效应变标准(&egr。effcr)进行比较,以确定有效应变(&egr。eff)是否超过有效应变标准(&egr。effcr)。

    Method for predicting well reliability by computer simulation
    9.
    发明授权
    Method for predicting well reliability by computer simulation 有权
    通过计算机模拟预测井可靠性的方法

    公开(公告)号:US08265915B2

    公开(公告)日:2012-09-11

    申请号:US12602622

    申请日:2008-06-13

    IPC分类号: G06F17/50

    摘要: Methods of predicting earth stresses in response to pore pressure changes in a hydrocarbon-bearing reservoir within a geomechanical system, include establishing physical boundaries for the geomechanical system and acquiring reservoir characteristics. Geomechanical simulations simulate the effects of changes in reservoir characteristics on stress in rock formations within the physical boundaries to determine the rock formation strength at selected nodes in the reservoir. The strength of the rock formations at the nodes is represented by an effective strain (εeff), which includes a compaction strain (εc) and out-of-plane shear strains (Υ1-3, Y2-3) at a nodal point. The methods further include determining an effective strain criteria (εeffcr) from a history of well failures in the physical boundaries. The effective strain (εeffcr) at a selected nodal point is compared with the effective strain criteria (εeffcr) to determine if the effective strain (εeff) exceeds the effective strain criteria (εeffcr).

    摘要翻译: 在地质力学系统中预测地球应力响应孔隙压力变化的方法包括建立地质力学系统的物理边界并获取储层特征。 地质力学模拟模拟储层特征变化对物理边界内岩层应力的影响,以确定储层选定节点的岩层强度。 在节点处的岩层的强度由有效应变(&egr。eff)表示,其包括压实应变(&egr; c)和平面外剪切应变(&Ugr; 1-3,Y2-3) 在一个节点。 这些方法还包括从物理边界的井故障历史中确定有效应变标准(&egr。effcr)。 将有效应变(&egr。effcr)与有效应变标准(&egr。effcr)进行比较,以确定有效应变(&egr。eff)是否超过有效应变标准(&egr。effcr)。