Determination of gas saturation radial profile from multi-frequency NMR data
    1.
    发明授权
    Determination of gas saturation radial profile from multi-frequency NMR data 有权
    从多频率NMR数据确定气体饱和径向剖面

    公开(公告)号:US07565246B2

    公开(公告)日:2009-07-21

    申请号:US11689887

    申请日:2007-03-22

    IPC分类号: G01V5/04

    摘要: A method for determining fluid saturation in a formation at a plurality of radial depths near a wellbore, the method including: obtaining multi-frequency nuclear magnetic resonance (NMR) response data for the formation; and processing the data to determine simultaneously the fluid saturation at each radial depth. A computer program product is provided.

    摘要翻译: 一种用于确定井眼附近的多个径向深度处的地层中的流体饱和度的方法,所述方法包括:获得用于地层的多频核磁共振(NMR)响应数据; 并处理数据以同时确定每个径向深度处的流体饱和度。 提供计算机程序产品。

    DETERMINATION OF GAS SATURATION RADIAL PROFILE FROM MULTI-FREQUENCY NMR DATA
    2.
    发明申请
    DETERMINATION OF GAS SATURATION RADIAL PROFILE FROM MULTI-FREQUENCY NMR DATA 有权
    从多频谱数据中确定气体饱和辐射剖面

    公开(公告)号:US20080234937A1

    公开(公告)日:2008-09-25

    申请号:US11689887

    申请日:2007-03-22

    IPC分类号: G01V3/38 G01V3/14

    摘要: A method for determining fluid saturation in a formation at a plurality of radial depths near a wellbore, the method including: obtaining multi-frequency nuclear magnetic resonance (NMR) response data for the formation; and processing the data to determine simultaneously the fluid saturation at each radial depth. A computer program product is provided.

    摘要翻译: 一种用于确定井眼附近的多个径向深度处的地层中的流体饱和度的方法,所述方法包括:获得用于地层的多频核磁共振(NMR)响应数据; 并处理数据以同时确定每个径向深度处的流体饱和度。 提供计算机程序产品。

    Method and apparatus for characterizing heavy oil components in petroleum reservoirs
    3.
    发明授权
    Method and apparatus for characterizing heavy oil components in petroleum reservoirs 有权
    表征石油储层中重油成分的方法和装置

    公开(公告)号:US07253617B1

    公开(公告)日:2007-08-07

    申请号:US11376046

    申请日:2006-03-15

    IPC分类号: G01V3/00

    摘要: A method for obtaining a parameter of interest relating to a region investigated by a nuclear magnetic resonance (NMR) tool and a non-NMR tool is disclosed. Data arising from the NMR tool is acquired, and data arising from the non-NMR tool is acquired. A solution equation is utilized for NMR signal intensity, the solution equation being functionally related to the NMR data, and a solution constraint is utilized based at least partially on the non-NMR data. The solution equation is solved for the signal intensity subject to the solution constraint, wherein the solving provides information relating to the parameter of interest.

    摘要翻译: 公开了一种获得与由核磁共振(NMR)工具和非NMR工具研究的区域相关的参数的方法。 获取由NMR工具产生的数据,并且获得由非NMR工具产生的数据。 解决方程用于NMR信号强度,溶液方程在功能上与NMR数据相关,并且至少部分地基于非NMR数据使用溶液约束。 求解方程式对于解决约束的信号强度,其中求解提供与感兴趣参数有关的信息。

    Oil-based mud imager with a line source
    4.
    发明授权
    Oil-based mud imager with a line source 有权
    石油泥浆成像仪有线源

    公开(公告)号:US09423524B2

    公开(公告)日:2016-08-23

    申请号:US13079948

    申请日:2011-04-05

    申请人: Sheng Fang

    发明人: Sheng Fang

    IPC分类号: G01V3/00 G01V3/24

    CPC分类号: G01V3/24

    摘要: A resistivity imaging device uses a line source in conjunction with an array of measure electrodes to reduce sensitivity to tool standoff when use in a borehole with oil-based mud.

    摘要翻译: 电阻率成像装置使用线源与测量电极阵列相结合,以在使用具有油基泥浆的井眼时降低对刀具间隔的敏感性。

    Apparatus and methods for well-bore proximity measurement while drilling
    5.
    发明授权
    Apparatus and methods for well-bore proximity measurement while drilling 有权
    钻井时井眼接近测量的装置和方法

    公开(公告)号:US09151150B2

    公开(公告)日:2015-10-06

    申请号:US13713960

    申请日:2012-12-13

    摘要: In one aspect an apparatus for determining a distance between a first borehole and a second borehole during drilling of the second borehole is disclosed that in one embodiment includes a magnet on a drilling tool that rotates in the second borehole to induce a primary magnetic field in a magnetic object in the first borehole, a substantially stationary sensor on the drilling tool that detects a secondary magnetic field from the magnetic object responsive to the induced primary magnetic field, and a controller that determines the distance between the first borehole and the second borehole from the detected magnetic field. In another aspect a method of determining a distance between a first borehole and a second borehole, the in one embodiment includes inducing a primary magnetic field in a magnetic object in the first borehole using a rotating magnet in the second borehole, detecting a secondary magnetic field from the magnetic object responsive to the induced primary magnetic field using a substantially stationary sensor in the second borehole, and determining the distance between the first borehole and the second borehole from the detected magnetic field.

    摘要翻译: 在一个方面,公开了一种用于在第二钻孔期间确定第一钻孔和第二钻孔之间的距离的装置,其在一个实施例中包括钻孔工具上的磁体,其在第二钻孔中旋转以在第二钻孔中引入初级磁场 第一钻孔中的磁性物体,钻孔工具上的基本上固定的传感器,其响应于感应的初级磁场检测来自磁性物体的次级磁场;以及控制器,其从第一钻孔中确定第一钻孔和第二钻孔之间的距离 检测磁场。 在另一方面,一种确定第一钻孔和第二钻孔之间的距离的方法,在一个实施例中,包括使用第二钻孔中的旋转磁体在第一钻孔中的磁性物体中引起初级磁场,检测次级磁场 从所述磁性物体响应于所述感应的初级磁场,使用所述第二钻孔中的基本上固定的传感器,以及从所述检测到的磁场确定所述第一钻孔和所述第二钻孔之间的距离。

    PROCESSING AZIMUTHAL MEASUREMENT DATA
    6.
    发明申请
    PROCESSING AZIMUTHAL MEASUREMENT DATA 有权
    处理AZIMUTHAL测量数据

    公开(公告)号:US20130338924A1

    公开(公告)日:2013-12-19

    申请号:US13525630

    申请日:2012-06-18

    IPC分类号: G01V9/00 G01V3/18 G06F17/18

    摘要: A method of processing azimuthal measurement data includes: receiving a plurality of data values generated by a rotating measurement tool, the measurement tool including at least one measurement sensor and configured to rotate and measure a signal at each of a plurality of azimuthal orientations; associating each received data value with an azimuthal orientation; selecting one or more data values that provide sufficient information regarding a measured signal, each of the selected data values having an associated azimuthal orientation; disregarding azimuthal orientations associated with one or more data values that provide insufficient information regarding a measured signal; and fitting only the selected data values to a sinusoidal curve.

    摘要翻译: 一种处理方位测量数据的方法包括:接收由旋转测量工具生成的多个数据值,所述测量工具包括至少一个测量传感器,并且被配置为在多个方位方向中的每一个方向旋转和测量信号; 将每个接收到的数据值与方位方向相关联; 选择提供关于测量信号的足够信息的一个或多个数据值,所选择的数据值中的每一个具有相关联的方位取向; 忽略与提供关于测量信号的不足信息的一个或多个数据值相关联的方位角取向; 并仅将所选择的数据值拟合成正弦曲线。

    Performing downhole measurement using tuned transmitters and untuned receivers
    7.
    发明授权
    Performing downhole measurement using tuned transmitters and untuned receivers 有权
    使用调谐发射机和未接收的接收机执行井下测量

    公开(公告)号:US08487625B2

    公开(公告)日:2013-07-16

    申请号:US12731304

    申请日:2010-03-25

    IPC分类号: G01V3/08

    CPC分类号: G01V3/28

    摘要: An apparatus configured to evaluate an earth formation that includes a tuned transmitter antenna and an untuned broadband receiver antenna. The transmitter antenna being configured to generate electromagnetic energy and the untuned broadband antenna configured to produce an output responsive to the generated electromagnetic energy. The untuned, broadband receiver antenna is configured reduce to reduce tool complexity, antenna coupling, and cross-talk between conductors to the antenna assemblies. The method includes using the apparatus in earth formation evaluation.

    摘要翻译: 一种被配置为评估地球形成的装置,其包括调谐的发射机天线和未经单元的宽带接收机天线。 所述发射机天线被配置为产生电磁能量,并且所述未经调谐的宽带天线被配置为响应于所产生的电磁能产生输出。 配置无陀螺的宽带接收机天线被减少以减少导体与天线组件之间的工具复杂性,天线耦合和串扰。 该方法包括在地层评估中使用该装置。

    Apparatus and method for reducing effects of eccentricity in induction tools
    8.
    发明授权
    Apparatus and method for reducing effects of eccentricity in induction tools 有权
    感应工具中减少偏心效应的装置和方法

    公开(公告)号:US08427164B2

    公开(公告)日:2013-04-23

    申请号:US12832678

    申请日:2010-07-08

    IPC分类号: G01V3/00

    CPC分类号: G01V3/28

    摘要: In aspects, an apparatus for use in a wellbore for determining a property of an earth formation is provided. The apparatus, in one embodiment, may include a tool body including a transmitter configured to induce electromagnetic waves in an earth formation, a receiver configured to provide signals responsive to the induced electromagnetic waves, a conductive member between the transmitter and the receiver extending radially from the tool body and configured to reduce propagation of eddy currents between the transmitter and the receiver when the tool body is in a wellbore and a processor configured to process the signals provided by the receiver to determine the property of the earth formation.

    摘要翻译: 在方面中,提供了一种用于确定地层的性质的井眼中的装置。 在一个实施例中,该装置可以包括工具主体,其包括被配置为在地层中诱发电磁波的发射器,被配置为提供响应于感应的电磁波的信号的接收器,发射器和接收器之间的导电部件从 所述工具主体并且被配置为当所述工具主体处于井筒中时,减少所述发射器和所述接收器之间的涡流的传播,并且所述处理器被配置为处理由所述接收器提供的信号以确定所述地层的性质。

    Measuring With Tuned Transmitters and Broadband Receivers
    9.
    发明申请
    Measuring With Tuned Transmitters and Broadband Receivers 有权
    使用调谐发射机和宽带接收机进行测量

    公开(公告)号:US20100253355A1

    公开(公告)日:2010-10-07

    申请号:US12731304

    申请日:2010-03-25

    IPC分类号: G01V3/20

    CPC分类号: G01V3/28

    摘要: An untuned, broadband receiver antenna for an induction or propagation logging tool reduces tool complexity, antenna coupling, and cross-talk between conductors to the antenna assemblies.

    摘要翻译: 用于感应或传播测井工具的未经调谐的宽带接收机天线可降低导体与天线组件之间的工具复杂性,天线耦合和串扰。

    APPARATUS AND SYSTEM FOR GEOSTEERING AND FORMATION EVALUATION UTILIZING IMPROVED ANTENNAS
    10.
    发明申请
    APPARATUS AND SYSTEM FOR GEOSTEERING AND FORMATION EVALUATION UTILIZING IMPROVED ANTENNAS 有权
    用于改善天线的地球物理和地层评估的装置和系统

    公开(公告)号:US20090301781A1

    公开(公告)日:2009-12-10

    申请号:US12135639

    申请日:2008-06-09

    IPC分类号: E21B49/00

    CPC分类号: E21B47/01 G01V3/30

    摘要: An apparatus for measuring one or more earth formation properties during applications including formation evaluation and geosteering applications is provided. The apparatus includes: an elongated body; at least one recessed portion on a periphery of the elongated body; an electrically conductive coil forming a closed loop, at least a portion of the coil extending through the at least one recessed portion; and a u-shaped magnetically permeable and non-conductive material disposed between the coil and the at least one recessed portion, the u-shaped material partially surrounding the coil in the at least one recessed portion. A system for measuring one or more properties of an earth formation is also provided.

    摘要翻译: 提供了一种用于在包括地层评估和地质导向应用的应用中测量一个或多个地层形成特性的装置。 该装置包括:细长体; 所述细长体的周边上的至少一个凹部; 形成闭环的导电线圈,所述线圈的至少一部分延伸穿过所述至少一个凹部; 以及设置在所述线圈和所述至少一个凹部之间的u形磁导和非导电材料,所述u形材料部分地围绕所述至少一个凹部中的所述线圈。 还提供了一种用于测量地层的一个或多个性质的系统。