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    Fluid minotiring and flow characterization
    3.
    发明授权
    Fluid minotiring and flow characterization 有权
    流体分解和流动特性

    公开(公告)号：US09371710B2

    公开(公告)日：2016-06-21

    申请号：US13547210

    申请日：2012-07-12

    申请人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

    发明人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

    IPC分类号： E21B49/00 ,  E21B33/124

    CPC分类号： E21B33/124 ,  E21B49/008

    摘要： A wireline logging tool and method for fluid monitoring and flow characterization in individual zones of controlled salinity is disclosed. The tool and method advantageously facilitate zone-specific testing. Sets of packers are used to create hydraulically distinct zones proximate to the tool. Coiled tubing and isolation valves are used to selectively introduce and remove an electrically conductive fluid such as brine to and from a selected zone. Individual sensors are disposed near each zone to make zone-specific measurements while fluid properties are changed, e.g., while salinity is changed to cause salinity fronts in the formation.

    摘要翻译： 公开了用于控制盐度的各个区域中的流体监测和流动表征的电缆测井工具和方法。 该工具和方法有利于促进区域特异性测试。 包装机组用于在工具附近创建液压不同的区域。 螺旋管和隔离阀用于选择性地将导电流体（例如盐水）引入并从所选区域去除。 单独的传感器设置在每个区域附近以进行区域特异性测量，同时改变流体性质，例如当盐度改变以引起地层中的盐度前沿时。

    TARGETED MEASUREMENTS FOR FORMATION EVALUATION AND RESERVOIR CHARACTERIZATION
    4.
    发明申请
    TARGETED MEASUREMENTS FOR FORMATION EVALUATION AND RESERVOIR CHARACTERIZATION 审中-公开
    用于形成评估和储层特征的目标测量

    公开(公告)号：US20080314582A1

    公开(公告)日：2008-12-25

    申请号：US11766534

    申请日：2007-06-21

    申请人： Ashok Belani ,  Tarek M. Habashy ,  Terizhandur S. Ramakrishnan ,  Fikri J. Kuchuk ,  Ramachandra G. Shenoy

    发明人： Ashok Belani ,  Tarek M. Habashy ,  Terizhandur S. Ramakrishnan ,  Fikri J. Kuchuk ,  Ramachandra G. Shenoy

    IPC分类号： E21B47/00

    CPC分类号： G01V11/00

    摘要： A downhole-reconfigurable tool string is utilized to obtain targeted measurements for formation evaluation and reservoir characterization. Tool string hardware and corresponding analysis software are dynamically adjusted to meet specific reservoir description needs identified during or before the logging run with the downhole-reconfigurable tool string. A technique for utilizing the downhole-reconfigurable tool string includes four different steps. The first step includes detecting first order features and identifying second order features. The second step includes enhancing measurements relative to the second order features by reconfiguring tool hardware to extract at least the desired information of the reservoir in terms of its static and dynamic properties, and software focusing to enhance the sensitivity to a particular reservoir attribute. The third step is performing an inversion to reconstruct the reservoir property as accurately as possible. The fourth step is using these properties and the planned production/injection data to recommend suitable monitoring schema.

    摘要翻译： 利用井下可重构工具串来获得用于地层评估和储层表征的目标测量。 动态调整工具串硬件和相应的分析软件，以满足使用井下可重构工具串在日志记录期间或之前识别的特定油藏描述需求。 利用井下可重构工具串的技术包括四个不同的步骤。 第一步包括检测一阶特征并识别二阶特征。 第二步包括通过重新配置工具硬件来提高与二阶特征相关的测量，以根据其静态和动态属性提取储层的期望信息，以及集中于增强对特定储层属性的敏感性的软件。 第三步是尽可能准确地进行反演以重建储层特性。 第四步是使用这些属性和计划的生产/注入数据来推荐合适的监控模式。

    Method and apparatus for characterizing earth formation properties through joint pressure-resistivity inversion
    5.
    发明授权
    Method and apparatus for characterizing earth formation properties through joint pressure-resistivity inversion 失效
    通过接头压力 - 电阻率反演来表征地层性质的方法和装置

    公开(公告)号：US6061634A

    公开(公告)日：2000-05-09

    申请号：US843206

    申请日：1997-04-14

    申请人： Ashok Belani ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Fikri John Kuchuk ,  Luis Ayestaran

    发明人： Ashok Belani ,  Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Fikri John Kuchuk ,  Luis Ayestaran

    IPC分类号： E21B49/00 ,  G06F19/00

    CPC分类号： E21B49/008

    摘要： Methods and apparatus for estimating values for formation parameters such as permeability, relative permeability, and skin factors for a plurality of locations in the formation are provided. Fluid is forced into a capped borehole at a measured rate, and a borehole logging tool is run in the borehole to measure indications of pressure and conductivity. Estimates of the parameters and the measured fluid flow rate(s) into the formation are used in conjunction with a jointly inverted pressure transient model and saturation-conductivity model in order to compute indications of expected pressure and indications of expected conductivity-related profiles as a function of depth and time. The expected pressures and expected conductivity related profile indications are then compared to the pressures and conductivity indications measured by the borehole logging tool, and an iterated comparison between the computed values and the measured values is used to provide determinations of the formation parameters. According to a preferred embodiment, the pressure transient model is for compressible flow and provides an estimated calculated fluid flow into the layers of the formation; the estimated calculated fluid flow being an input to the saturation-conductivity model which is for incompressible flow.

    摘要翻译： 提供了用于估计地层参数的值的方法和装置，例如地层中的多个位置的渗透率，相对渗透率和皮肤因子。 流体以测量的速率被迫进入加盖的钻孔中，并且钻孔测井工具在钻孔中运行以测量压力和电导率的指示。 结合使用联合倒置压力瞬态模型和饱和电导率模型的参数估计和测量的流体流速进入地层，以计算预期压力的指示和预期的导电率相关曲线的指示为 深度和时间的功能。 然后将期望的压力和预期的导电率相关曲线指示与由钻孔测井工具测量的压力和电导率指示进行比较，并且使用计算值和测量值之间的迭代比较来提供地层参数的确定。 根据优选实施例，压力瞬变模型用于可压缩流动，并且向地层的层提供估计的计算流体流量; 估计的计算流体流量是用于不可压缩流动的饱和电导率模型的输入。

    Fluid monitoring and flow characterization
    6.
    发明授权
    Fluid monitoring and flow characterization 有权
    流体监测和流动特性

    公开(公告)号：US08251140B2

    公开(公告)日：2012-08-28

    申请号：US12559800

    申请日：2009-09-15

    申请人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

    发明人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

    IPC分类号： E21B43/16 ,  E21B47/10 ,  E21B49/00

    CPC分类号： E21B33/124 ,  E21B49/008

    摘要： A wireline logging tool and method for fluid monitoring and flow characterization in individual zones of controlled salinity is disclosed. The tool and method advantageously facilitate zone-specific testing. Sets of packers are used to create hydraulically distinct zones proximate to the tool. Coiled tubing and isolation valves are used to selectively introduce and remove an electrically conductive fluid such as brine to and from a selected zone. Individual sensors are disposed near each zone to make zone-specific measurements while fluid properties are changed, e.g. while salinity is changed to cause salinity fronts in the formation.

    摘要翻译： 公开了用于控制盐度的各个区域中的流体监测和流动表征的电缆测井工具和方法。 该工具和方法有利于促进区域特异性测试。 包装机组用于在工具附近创建液压不同的区域。 螺旋管和隔离阀用于选择性地将导电流体（例如盐水）引入并从所选区域去除。 单独的传感器设置在每个区域附近以进行区域特异性测量，同时改变流体性质，例如。 而盐度变化会导致地层中的盐碱面。

    FLUID MONITORING AND FLOW CHARACTERIZATION
    7.
    发明申请
    FLUID MONITORING AND FLOW CHARACTERIZATION 有权
    流体监测和流量特性

    公开(公告)号：US20110061863A1

    公开(公告)日：2011-03-17

    申请号：US12559800

    申请日：2009-09-15

    申请人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

    发明人： Terizhandur S. Ramakrishnan ,  Tarek M. Habashy ,  Badarinadh Vissapragada

    IPC分类号： E21B47/00

    CPC分类号： E21B33/124 ,  E21B49/008

    摘要： A wireline logging tool and method for fluid monitoring and flow characterization in individual zones of controlled salinity is disclosed. The tool and method advantageously facilitate zone-specific testing. Sets of packers are used to create hydraulically distinct zones proximate to the tool. Coiled tubing and isolation valves are used to selectively introduce and remove an electrically conductive fluid such as brine to and from a selected zone. Individual sensors are disposed near each zone to make zone-specific measurements while fluid properties are changed, e.g. while salinity is changed to cause salinity fronts in the formation.

    摘要翻译： 公开了用于控制盐度的各个区域中的流体监测和流动表征的电缆测井工具和方法。 该工具和方法有利于促进区域特异性测试。 包装机组用于在工具附近创建液压不同的区域。 螺旋管和隔离阀用于选择性地将导电流体（例如盐水）引入并从所选区域去除。 单独的传感器设置在每个区域附近以进行区域特异性测量，同时改变流体性质，例如。 而盐度变化会导致地层中的盐碱面。

    Estimations of nuclear magnetic resonance measurement distributions
    10.
    发明授权
    Estimations of nuclear magnetic resonance measurement distributions 有权
    核磁共振测量分布的估计

    公开(公告)号：US09222902B2

    公开(公告)日：2015-12-29

    申请号：US13346468

    申请日：2012-01-09

    申请人： Fred K. Gruber ,  Lalitha Venkataramanan ,  Tarek M. Habashy ,  Philip M. Singer ,  Denise E. Freed

    发明人： Fred K. Gruber ,  Lalitha Venkataramanan ,  Tarek M. Habashy ,  Philip M. Singer ,  Denise E. Freed

    IPC分类号： G01V1/40 ,  G01N24/08 ,  G01R33/44 ,  G01V3/18

    CPC分类号： G01N24/081 ,  G01R33/448

    摘要： A nuclear magnetic resonance (NMR) related distribution is estimated that is consistent with NMR measurements and uses linear functionals directly estimated from the measurement indications by integral transforms as constraints in a cost function. The cost function includes indications of the measurement data, Laplace transform elements and the constraints, and a distribution estimation is made by minimizing the cost function. The distribution estimation may be used to find parameters of the sample. Where the sample is a rock or a formation, the parameters may include parameters such as rock permeability and/or hydrocarbon viscosity, bound and free fluid volumes, among others. The parameters may be used in models, equations, or otherwise to act on the sample, such as in recovering hydrocarbons from the formation.

    摘要翻译： 估计核磁共振（NMR）相关分布与NMR测量一致，并且使用通过积分变换作为成本函数中的约束从测量指示直接估计的线性函数。 成本函数包括测量数据，拉普拉斯变换元素和约束的指示，并且通过最小化成本函数来进行分布估计。 分布估计可用于查找样本的参数。 在样品是岩石或地层的情况下，参数可以包括诸如岩石渗透性和/或烃粘度，结合和游离流体体积等参数。 这些参数可以用于模型，方程式或其他方式作用于样品，例如从地层回收碳氢化合物。