Determining reservoir connectivity using fluid contact gravity measurements
    1.
    发明授权
    Determining reservoir connectivity using fluid contact gravity measurements 有权
    使用流体接触重力测量确定油藏连通性

    公开(公告)号:US09316761B2

    公开(公告)日:2016-04-19

    申请号:US13357786

    申请日:2012-01-25

    CPC classification number: G01V7/06 G06F17/00

    Abstract: An apparatus and method for estimating reservoir connectivity using gravity estimates at a fluid contact for each of two or more boreholes. The method may include identifying fluid contacts in the boreholes. The method may include additional gravity estimates at and/or between a well head and the fluid contact of each borehole. The method may include gravity estimates along a surface between well heads of the boreholes. The method may include estimating true vertical depth for the boreholes. The apparatus may include at least one gravimeter and a processor configured to estimate reservoir connectivity using estimates from the gravimeter.

    Abstract translation: 一种用于使用两个或更多个钻孔中的每一个的流体接触处的重力估计来估计储层连通性的装置和方法。 该方法可以包括识别钻孔中的流体接触。 该方法可以包括在井头和每个钻孔的流体接触之间和/或之间的额外的重力估计。 该方法可以包括沿着钻孔的井头之间的表面的重力估计。 该方法可以包括估计钻孔的真实垂直深度。 该装置可以包括至少一个重力计和配置成使用来自重力仪的估计来估计储层连接性的处理器。

    ORIENTATION INDEPENDENT GRAVITY SENSOR
    2.
    发明申请
    ORIENTATION INDEPENDENT GRAVITY SENSOR 审中-公开
    方位独立重量传感器

    公开(公告)号:US20090126486A1

    公开(公告)日:2009-05-21

    申请号:US11943200

    申请日:2007-11-20

    CPC classification number: G01V7/16

    Abstract: An instrument for measuring gravitational acceleration, the instrument including: a plurality of accelerometers disposed about a three-dimensional structure, the plurality of accelerometers providing output used for measuring the gravitational acceleration; wherein each accelerometer in the plurality is implemented by at least one of a micro-electromechanical system (MEMS) and a nano-electromechanical system (NEMS).

    Abstract translation: 一种用于测量重力加速度的仪器,所述仪器包括:围绕三维结构设置的多个加速度计,所述多个加速度计提供用于测量重力加速度的输出; 其中多个中的每个加速度计由微机电系统(MEMS)和纳米机电系统(NEMS)中的至少一个来实现。

    High-resolution high-speed NMR well logging device

    公开(公告)号:US07012426B2

    公开(公告)日:2006-03-14

    申请号:US10765611

    申请日:2004-01-27

    CPC classification number: G01V3/32 G01N24/081 G01R33/383 Y02A90/344

    Abstract: Wireline NMR well logging measurements suffer from disadvantages of poor vertical resolution, logging speeds less than 20 ft/min, and power consumption in excess of 200 W. In spite of these disadvantages, NMR well logging is used because it is capable of providing estimates for a number of petrophysical parameters that are difficult to obtain from other wireline data. These include estimates of the bulk volume irreducible (BVI) of fluids in the formation. The present invention targets BVI and clay bound water (CBW) measurements. Logging speeds of up to 60 ft/min are attainable with little or no loss of resolution. In one preferred embodiment, the tool has four sensors circumferentially distributed around the logging tool and in contact with the borehole wall. A horseshoe like magnet is used to generate the static magnetic field. The magnet poles are designed such that the magnetic field is uniform perpendicular tool motion, as well as provide a sufficiently large extent of the static field to provide polarization for bound water in rock formations. The RF portion of the sensor is comprised of at least one coil configured for transmission of an RF magnetic field into rock formations and at least two coils configured to separately receive the NMR signal from the formation. In another embodiment a coil is wound around the pole pieces or the iron yoke for the purpose of field shifting to enable acquisition of phase-alternated measurements.

    DETERMINING RESERVOIR CONNECTIVITY USING FLUID CONTACT GRAVITY MEASUREMENTS
    4.
    发明申请
    DETERMINING RESERVOIR CONNECTIVITY USING FLUID CONTACT GRAVITY MEASUREMENTS 有权
    使用流体接触重力测量来确定储层连接性

    公开(公告)号:US20130191030A1

    公开(公告)日:2013-07-25

    申请号:US13357786

    申请日:2012-01-25

    CPC classification number: G01V7/06 G06F17/00

    Abstract: An apparatus and method for estimating reservoir connectivity using gravity estimates at a fluid contact for each of two or more boreholes. The method may include identifying fluid contacts in the boreholes. The method may include additional gravity estimates at and/or between a well head and the fluid contact of each borehole. The method may include gravity estimates along a surface between well heads of the boreholes. The method may include estimating true vertical depth for the boreholes. The apparatus may include at least one gravimeter and a processor configured to estimate reservoir connectivity using estimates from the gravimeter.

    Abstract translation: 一种用于使用两个或更多个钻孔中的每一个的流体接触处的重力估计来估计储层连通性的装置和方法。 该方法可以包括识别钻孔中的流体接触。 该方法可以包括在井头和每个钻孔的流体接触之间和/或之间的额外的重力估计。 该方法可以包括沿着钻孔的井头之间的表面的重力估计。 该方法可以包括估计钻孔的真实垂直深度。 该装置可以包括至少一个重力计和配置成使用来自重力仪的估计来估计储层连接性的处理器。

    Rotatable orientation independent gravity sensor and methods for correcting systematic errors
    5.
    发明授权
    Rotatable orientation independent gravity sensor and methods for correcting systematic errors 失效
    可旋转取向独立重力传感器和校正系统误差的方法

    公开(公告)号:US08131494B2

    公开(公告)日:2012-03-06

    申请号:US12328181

    申请日:2008-12-04

    Abstract: A method to correct for a systematic error of a sensor having a plurality of accelerometers configured to measure gravitational acceleration, the method including: rotating the plurality of accelerometers about a first axis; obtaining a first set of calibration measurements from the plurality of accelerometers from the rotation about the first axis; determining a first systematic error for each accelerometer in the plurality using the first set of calibration measurements; and removing the first systematic error from sensor measurements to correct for the systematic error.

    Abstract translation: 一种用于校正具有被配置为测量重力加速度的多个加速度计的传感器的系统误差的方法,所述方法包括:围绕第一轴旋转所述多个加速度计; 从围绕第一轴的旋转获得来自多个加速度计的第一组校准测量; 使用所述第一组校准测量来确定所述多个中的每个加速度计的第一系统误差; 并从传感器测量中去除第一个系统误差,以纠正系统误差。

    Nuclear magnetic resonance method and apparatus for evaluating a characteristic of a region
    6.
    发明授权
    Nuclear magnetic resonance method and apparatus for evaluating a characteristic of a region 有权
    用于评估区域特性的核磁共振法和装置

    公开(公告)号:US07116103B2

    公开(公告)日:2006-10-03

    申请号:US10967733

    申请日:2004-10-18

    CPC classification number: G01N24/081 G01V3/32

    Abstract: A method of evaluating a characteristic of a fluid in a region, and a nuclear magnetic resonance (NMR) well logging apparatus for the implementation thereof, is disclosed. A magnetic field gradient is applied to the region, and first and second sequences of magnetic field gradient is applied to the region, with the second sequence differing in a pulse characteristic from the first sequence. A magnetization spectrum resulting from each of the sequences of pulse is captured, and a change in the magnetization spectrum resulting from the first and second sequences of pulses is analyzed to extract information about the fluid.

    Abstract translation: 公开了一种评价区域中的流体的特性的方法和用于实施的核磁共振(NMR)测井装置。 对该区域施加磁场梯度,并且将第一和第二磁场梯度序列施加到该区域,其中第二序列与来自第一序列的脉冲特性不同。 捕获从每个脉冲序列产生的磁化谱,并且分析由第一和第二脉冲序列产生的磁化谱的变化以提取关于流体的信息。

    High-resolution high-speed NMR well logging device
    7.
    发明授权
    High-resolution high-speed NMR well logging device 失效
    高分辨率高速NMR测井装置

    公开(公告)号:US06720765B2

    公开(公告)日:2004-04-13

    申请号:US09870287

    申请日:2001-05-30

    CPC classification number: G01V3/32 G01N24/081 G01R33/383 Y02A90/344

    Abstract: Wireline NMR well logging measurements suffer from disadvantages of poor vertical resolution, logging speeds less than 20 ft/min, and power consumption in excess of 200 W. In spite of these disadvantages, NMR well logging is used because it is capable of providing estimates for a number of petrophysical parameters that are difficult to obtain from other wireline data. These include estimates of the bulk volume irreducible (BVI) of fluids in the formation. The present invention targets BVI and clay bound water (CBW) measurements. Logging speeds of up to 60 ft/min are attainable with little or no loss of resolution. In one preferred embodiment, the tool has four sensors circumferentially distributed around the logging tool and in contact with the borehole wall. A horseshoe like magnet is used to generate the static magnetic field. The magnet poles are designed such that the magnetic field is uniform perpendicular tool motion, as well as provide a sufficiently large extent of the static field to provide polarization for bound water in rock formations. The RF portion of the sensor is comprised of at least one coil configured for transmission of an RF magnetic field into rock formations and at least two coils configured to separately receive the NMR signal from the formation. In another embodiment a coil is wound around the pole pieces or the iron yoke for the purpose of field shifting to enable acquisition of phase-alternated measurements.

    Abstract translation: 有线NMR测井测量具有不良的垂直分辨率,测井速度小于20英尺/分钟,功耗超过200W的缺点。尽管存在这些缺点,但是使用NMR测井是因为它能够为 一些难以从其他有线数据获得的岩石物理参数。 这些包括地层中流体的体积不可约(BVI)的估计。 本发明针对BVI和粘土结合水(CBW)测量。 记录速度高达60英尺/分,可以很少或没有损失分辨率。 在一个优选实施例中,该工具具有围绕测井工具周向分布且与钻孔壁接触的四个传感器。 使用马蹄形磁铁来产生静磁场。 磁极被设计成使得磁场是均匀的垂直的工具运动,并且提供足够大的静态场的范围以为岩层中的结合水提供极化。 传感器的RF部分包括至少一个线圈,其被配置为将RF磁场传输到岩层中,并且至少两个线圈被配置成从地层分别接收NMR信号。 在另一个实施例中,线圈缠绕在极片或铁轭上,用于场移位以使得能够获取相位交替测量。

    Apparatus and method for positioning and orienting a borehole tool
    8.
    发明授权
    Apparatus and method for positioning and orienting a borehole tool 有权
    用于定位和定向钻孔工具的装置和方法

    公开(公告)号:US09140085B2

    公开(公告)日:2015-09-22

    申请号:US13396134

    申请日:2012-02-14

    CPC classification number: E21B23/02 E21B23/03 E21B47/09 G01V11/005

    Abstract: A downhole positioning apparatus includes: a carrier configured to be disposed in a borehole in an earth formation, the carrier including at least one measurement tool and an extendable member configured to be actuated between a first position in which the extendable member is disposed at the carrier and a second position in which the member is extended from an outer surface of the carrier; and a receiving element fixedly disposed at a borehole casing, the receiving element configured to receive the elongated member when the member is in the second position and guide the carrier to a selected orientation as the carrier is moved axially through the borehole.

    Abstract translation: 井下定位装置包括:载体,其被配置为设置在地层中的钻孔中,所述载体包括至少一个测量工具和可延伸构件,该可延伸构件构造成在第一位置和第二位置之间被致动,在第一位置中,可延伸构件设置在载体 以及第二位置,其中所述构件从所述载体的外表面延伸; 以及固定地设置在钻孔壳体处的接收元件,所述接收元件构造成当所述构件处于所述第二位置时接收所述细长构件,并且当所述载体轴向移动穿过所述钻孔时将所述载体引导到所选取向。

    ROTATABLE ORIENTATION INDEPENDENT GRAVITY SENSOR AND METHODS FOR CORRECTING SYSTEMATIC ERRORS
    9.
    发明申请
    ROTATABLE ORIENTATION INDEPENDENT GRAVITY SENSOR AND METHODS FOR CORRECTING SYSTEMATIC ERRORS 失效
    可旋转方向独立的重力传感器和校正系统误差的方法

    公开(公告)号:US20100145620A1

    公开(公告)日:2010-06-10

    申请号:US12328181

    申请日:2008-12-04

    Abstract: A method to correct for a systematic error of a sensor having a plurality of accelerometers configured to measure gravitational acceleration, the method including: rotating the plurality of accelerometers about a first axis; obtaining a first set of calibration measurements from the plurality of accelerometers from the rotation about the first axis; determining a first systematic error for each accelerometer in the plurality using the first set of calibration measurements; and removing the first systematic error from sensor measurements to correct for the systematic error.

    Abstract translation: 一种用于校正具有被配置为测量重力加速度的多个加速度计的传感器的系统误差的方法,所述方法包括:围绕第一轴旋转所述多个加速度计; 从围绕第一轴的旋转获得来自多个加速度计的第一组校准测量; 使用所述第一组校准测量来确定所述多个中的每个加速度计的第一系统误差; 并从传感器测量中去除第一个系统误差,以纠正系统误差。

    Design and Apparatus of a Magnetic Resonance Multiphase Flow Meter
    10.
    发明申请
    Design and Apparatus of a Magnetic Resonance Multiphase Flow Meter 有权
    磁共振多相流量计的设计与设计

    公开(公告)号:US20130018602A1

    公开(公告)日:2013-01-17

    申请号:US13180902

    申请日:2011-07-12

    Abstract: An apparatus and method for estimating a parameter of a fluid flowing in a tubular is disclosed. A source of a primary magnetic field is coupled to the tubular and is configured to induce the primary magnetic field in the fluid to align nuclei of the fluid in the tubular along the primary magnetic field. A transmitter transmits an excitation signal into the fluid. A receiver detects a signal from the aligned nuclei responsive to the excitation signal. A processor estimates the parameter of the fluid from the detected signal. The source of the primary magnetic field is removable from the tubular. A coil may induce a secondary magnetic field to either enhance the strength of the primary magnetic field in the tubular or substantially cancel the primary magnetic field in the tubular, for example, to reduce particle build-up in the tubular.

    Abstract translation: 公开了一种用于估计在管状体中流动的流体的参数的装置和方法。 主磁场的源耦合到管状物并被配置成诱导流体中的初级磁场沿着主磁场对准管中的流体的核。 发射器将激励信号发射到流体中。 接收机根据激励信号检测来自对准的核的信号。 处理器根据检测到的信号估计流体的参数。 初级磁场的来源可以从管状物中取出。 线圈可以引起次级磁场以增强管中的初级磁场的强度或基本上消除管中的初级磁场,例如以减少管中的颗粒积聚。

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