Fluid injection management method for hydrocarbon recovery
    6.
    发明授权
    Fluid injection management method for hydrocarbon recovery 有权
    烃回收流体注入管理方法

    公开(公告)号:US08165816B2

    公开(公告)日:2012-04-24

    申请号:US12375162

    申请日:2007-07-27

    IPC分类号: G01V3/18

    摘要: A method for controlling fluid injection parameters to improve well interactions and control hydrofracture geometries is provided. The method incorporates a systematic, transient analysis process for determining the formation effective displacement, stress and excess pore pressure field quantities at any depth within a stratified subterranean formation resulting from the subsurface injection of pressurized fluids.

    摘要翻译: 提供了一种用于控制流体注入参数以改善井相互作用并控制水力裂缝几何形状的方法。 该方法结合了一种系统的瞬态分析过程,用于确定地下注入加压流体产生的层状地下地层内任何深度处的形成有效位移,应力和超孔隙压力场量。

    Method For Predicting Time-Lapse Seismic Timeshifts By Computer Simulation
    7.
    发明申请
    Method For Predicting Time-Lapse Seismic Timeshifts By Computer Simulation 有权
    通过计算机模拟预测时间震荡时间偏移的方法

    公开(公告)号:US20110170373A1

    公开(公告)日:2011-07-14

    申请号:US13053875

    申请日:2011-03-22

    IPC分类号: G01V1/28

    摘要: A method for predicting time-lapse seismic timeshifts in a three-dimensional geomechanical system including defining physical boundaries for the geomechanical system. In addition, one or more reservoir characteristics such as pore pressure and/or temperature history are acquired from multiple wells within the physical boundaries. The method also includes determining whether a formation in the geomechanical system is in an elastic regime or a plastic regime. The method also includes obtaining first and second seismic data sets for the geomechanical system, taken at first and second times. The method also includes running a geomechanical simulation to simulate the effects of changes in pore pressure or other reservoir characteristic on time-lapse seismic timeshifts in the formation.

    摘要翻译: 一种用于预测三维地质力学系统中延时地震时间偏移的方法,包括界定地质力学系统的物理边界。 此外,从物理边界内的多个井获得一个或多个储层特征,例如孔隙压力和/或温度历史。 该方法还包括确定地质力学系统中的地层是处于弹性状态还是塑性状态。 该方法还包括在第一次和第二次获取用于地质力学系统的第一和第二地震数据集。 该方法还包括运行地质力学模拟,以模拟孔隙压力或其他储层特征变化对地层中延时地震时间变化的影响。

    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)。