Log processing in highly deviated wellbores
    1.
    发明授权
    Log processing in highly deviated wellbores 有权
    日志处理在高度偏差的井筒中

    公开(公告)号:US08473212B2

    公开(公告)日:2013-06-25

    申请号:US12712704

    申请日:2010-02-25

    IPC分类号: G01V1/40

    CPC分类号: G01V11/00 G01V2210/1429

    摘要: A method for processing well logging data includes method dividing the well logging data into a number of constant dimensional effect segments, where each constant dimensional effect segment defines an interval having a similar dimensional effect on the log response. The well logging data is taken from a highly deviated well. The method further includes dividing the constant dimensional effect segments into a number of constant property intervals, each constant dimensional effect segment including at least one corresponding constant property interval, and each constant property interval defining a wellbore distance over which a formation property is substantially constant that results in a log response having a low variance. The method further includes providing the constant property intervals to an output device. The method further includes determining constant property intervals in 3D volume space projected them into true stratigraphic thickness, and providing the resulting log-squared data to the output device.

    摘要翻译: 一种用于处理测井数据的方法包括将测井数据分成多个恒定维度效应段的方法,其中每个恒定维度效应段定义具有与对数响应相似的尺寸效应的间隔。 测井数据取自高度偏差的井。 所述方法还包括将恒定维数效应段划分成多个恒定特性间隔,每个恒定维度效应段包括至少一个对应的恒定特性间隔,以及每个常数特性间隔,其定义井眼距离, 导致具有低方差的对数响应。 该方法还包括向输出设备提供恒定的属性间隔。 该方法还包括确定3D体积空间中的恒定属性间隔将它们投影成真实的地层厚度,并将所得的对数平方数据提供给输出装置。

    Methods and apparatus to sample heavy oil in a subterranean formation
    3.
    发明授权
    Methods and apparatus to sample heavy oil in a subterranean formation 有权
    用于在地层中采样重油的方法和设备

    公开(公告)号:US08899324B2

    公开(公告)日:2014-12-02

    申请号:US13948698

    申请日:2013-07-23

    IPC分类号: E21B49/10

    摘要: A method for sampling fluid in a subterranean formation includes reducing a viscosity of the fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample. Specifically, a viscosity of the fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurized by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.

    摘要翻译: 用于对地下地层中的流体进行采样的方法包括降低流体的粘度,加压地下地层的一部分,以及收集流体样品。 具体地说,通过将位移流体注入到地下地层中,地下地层的一部分中的流体的粘度降低,地层的一部分被加压。 然后收集由置换液体加压的流体样品。

    Method and system to estimate fracture aperture in horizontal wells
    4.
    发明授权
    Method and system to estimate fracture aperture in horizontal wells 失效
    估算水平井断裂孔径的方法和系统

    公开(公告)号:US08756016B2

    公开(公告)日:2014-06-17

    申请号:US12396746

    申请日:2009-03-03

    IPC分类号: G01V1/40 G01V3/00 E21B49/00

    CPC分类号: G01V3/28

    摘要: A method for estimating a fracture aperture in a formation penetrated by a well includes obtaining at least one of a vertical resistivity (Rv) and a horizontal resistivity (Rh) of the formation; obtaining a mud resistivity (Rmud) or a matrix resistivity (Rmatrix); and estimating the fracture aperture. The estimating of the fracture aperture may be performed by solving the following two equations: Rv=Vhf·Rm+(1−Vhf)·Rmatrix and 1/Rh=Vhf·1/Rmud+(1−Vhf)·1/Rmatrix, wherein Vhf is the fracture aperture.

    摘要翻译: 用于估计由井渗透的地层中的断裂孔径的方法包括获得地层的垂直电阻率(Rv)和水平电阻率(Rh)中的至少一个; 获得泥浆电阻率(Rmud)或矩阵电阻率(Rmatrix); 并估计断裂孔径。 断裂孔径的估计可以通过求解以下两个等式来进行:Rv = Vhf·Rm +(1-Vhf)·Rmatrix和1 / Rh = Vhf·1 / Rmud +(1-Vhf)·1 / Rmatrix,其中Vhf 是断裂孔。

    Electromagnetic directional measurements for non-parallel bed formations
    5.
    发明授权
    Electromagnetic directional measurements for non-parallel bed formations 有权
    非平行床层的电磁方向测量

    公开(公告)号:US07991555B2

    公开(公告)日:2011-08-02

    申请号:US12182896

    申请日:2008-07-30

    IPC分类号: G01V3/30

    CPC分类号: G01V3/30

    摘要: An orientation vector, referred to hereinafter as the “geosteering vector,” is directed to the more conductive formation area within the DOI of the tool and away from the more resistive formation areas. Accordingly, drilling in a direction opposite the geosteering vector leads to more resistive formation. Also, the disclosed geosteering vectors obtained from the real and imaginary components will not align with each other for non-planar formations and therefore the misalignment of the geosteering obtained from real and imaginary components is indicative of a non-planar formation. A superposition method is disclosed which can be used to calculate electromagnetic (EM) couplings in a non-planar geometry formation (as well as in a planar geometry formation) in real time, without requiring two or three dimensional modeling calculations.

    摘要翻译: 以下称为“地质导向矢量”的取向矢量指向工具的DOI内的更加导电的形成区域,并且远离更多电阻的形成区域。 因此,在与地质导向矢量相反的方向钻孔导致更多的电阻形成。 此外,从实部和虚部分获得的公开的地质导向矢量将不会相互对准以用于非平面形成,并且因此从实部和虚部分组获得的地质导向器的未对准表示非平面形成。 公开了一种叠加方法,其可以用于实时地计算非平面几何形状(以及平面几何形状)中的电磁(EM)耦合,而不需要两维或三维建模计算。

    METHOD AND SYSTEM TO ESTIMATE FRACTURE APERTURE IN HORIZONTAL WELLS
    6.
    发明申请
    METHOD AND SYSTEM TO ESTIMATE FRACTURE APERTURE IN HORIZONTAL WELLS 失效
    估算水平井裂缝孔隙的方法和系统

    公开(公告)号:US20100191470A1

    公开(公告)日:2010-07-29

    申请号:US12396746

    申请日:2009-03-03

    IPC分类号: G01V3/38 G06F19/00

    CPC分类号: G01V3/28

    摘要: A method for estimating a fracture aperture in a formation penetrated by a well includes obtaining at least one of a vertical resistivity (Rv) and a horizontal resistivity (Rh) of the formation; obtaining a mud resistivity (Rmud) or a matrix resistivity (Rmatrix); and estimating the fracture aperture. The estimating of the fracture aperture may be performed by solving the following two equations: Rv=Vhf·Rm+(1−Vhf)·Rmatrix and 1/Rh=Vhf·1/Rmud+(1−Vhf)·1/Rmatrix, wherein Vhf is the fracture aperture.

    摘要翻译: 用于估计由井渗透的地层中的断裂孔径的方法包括获得地层的垂直电阻率(Rv)和水平电阻率(Rh)中的至少一个; 获得泥浆电阻率(Rmud)或矩阵电阻率(Rmatrix); 并估计断裂孔径。 断裂孔径的估计可以通过求解以下两个等式来进行:Rv = Vhf·Rm +(1-Vhf)·Rmatrix和1 / Rh = Vhf·1 / Rmud +(1-Vhf)·1 / Rmatrix,其中Vhf 是断裂孔。

    ELECTROMAGNETIC DIRECTIONAL MEASUREMENTS FOR NON-PARALLEL BED FORMATIONS
    7.
    发明申请
    ELECTROMAGNETIC DIRECTIONAL MEASUREMENTS FOR NON-PARALLEL BED FORMATIONS 有权
    非平行床形式的电磁方向测量

    公开(公告)号:US20100030477A1

    公开(公告)日:2010-02-04

    申请号:US12182896

    申请日:2008-07-30

    IPC分类号: G01V3/30 G01V3/18

    CPC分类号: G01V3/30

    摘要: An orientation vector, referred to hereinafter as the “geosteering vector,” is directed to the more conductive formation area within the DOI of the tool and away from the more resistive formation areas. Accordingly, drilling in a direction opposite the geosteering vector leads to more resistive formation. Also, the disclosed geosteering vectors obtained from the real and imaginary components will not align with each other for non-planar formations and therefore the misalignment of the geosteering obtained from real and imaginary components is indicative of a non-planar formation. A superposition method is disclosed which can be used to calculate electromagnetic (EM) couplings in a non-planar geometry formation (as well as in a planar geometry formation) in real time, without requiring two or three dimensional modeling calculations.

    摘要翻译: 以下称为“地质导向矢量”的取向矢量指向工具的DOI内的更加导电的形成区域,并且远离更多电阻的形成区域。 因此,在与地质导向矢量相反的方向钻孔导致更多的电阻形成。 此外,从实部和虚部分获得的公开的地质导向矢量将不会相互对准以用于非平面形成,并且因此从实部和虚部分组获得的地质导向器的未对准表示非平面形成。 公开了一种叠加方法,其可以用于实时地计算非平面几何形状(以及平面几何形状)中的电磁(EM)耦合,而不需要两维或三维建模计算。

    System and method for displaying data associated with subsurface reservoirs
    8.
    发明授权
    System and method for displaying data associated with subsurface reservoirs 有权
    用于显示与地下水库相关的数据的系统和方法

    公开(公告)号:US08364404B2

    公开(公告)日:2013-01-29

    申请号:US12027155

    申请日:2008-02-06

    CPC分类号: G01V1/50 G01V3/18 G01V3/38

    摘要: Method and system for visualizing one or more properties of a subterranean earth formation while drilling a borehole using probability information from a modeling process. Probability waveforms based on information from a plurality of borehole stations may be plotted, either alone or superimposed onto other graphical representations, to provide a visual display that is easily interpreted by a user to make geosteering decisions. The probability waveforms include peaked sections that are proportional to the amount of uncertainty or error associated with a boundary estimate at a particular distance from an axis of the borehole. By providing a visual display of the uncertainty, a user can make better geosteering decisions.

    摘要翻译: 使用来自建模过程的概率信息钻孔时可视化地下地层的一个或多个属性的方法和系统。 基于来自多个井眼站的信息的概率波形可以单独绘制或叠加到其他图形表示上,以提供易于由用户解释以进行地理转向决定的视觉显示。 概率波形包括与距离钻孔的特定距离处的边界估计相关联的不确定度或误差量成比例的峰值段。 通过提供不确定性的视觉显示,用户可以做出更好的地理转向决策。

    SYSTEM AND METHOD FOR DISPLAYING DATA ASSOCIATED WITH SUBSURFACE RESERVOIRS
    9.
    发明申请
    SYSTEM AND METHOD FOR DISPLAYING DATA ASSOCIATED WITH SUBSURFACE RESERVOIRS 有权
    用于显示与表面储层相关的数据的系统和方法

    公开(公告)号:US20090198447A1

    公开(公告)日:2009-08-06

    申请号:US12027155

    申请日:2008-02-06

    IPC分类号: G01V3/38

    CPC分类号: G01V1/50 G01V3/18 G01V3/38

    摘要: Method and system for visualizing one or more properties of a subterranean earth formation while drilling a borehole using probability information from a modeling process. Probability waveforms based on information from a plurality of borehole stations may be plotted, either alone or superimposed onto other graphical representations, to provide a visual display that is easily interpreted by a user to make geosteering decisions. The probability waveforms include peaked sections that are proportional to the amount of uncertainty or error associated with a boundary estimate at a particular distance from an axis of the borehole. By providing a visual display of the uncertainty, a user can make better geosteering decisions.

    摘要翻译: 使用来自建模过程的概率信息钻孔时可视化地下地层的一个或多个属性的方法和系统。 基于来自多个井眼站的信息的概率波形可以单独绘制或叠加到其他图形表示上,以提供易于由用户解释以进行地理转向决定的视觉显示。 概率波形包括与距离钻孔的特定距离处的边界估计相关联的不确定度或误差量成比例的峰值段。 通过提供不确定性的视觉显示,用户可以做出更好的地理转向决策。