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1. 发明授权

US07269514B2 System and method for correcting induction logging device measurements by alternately estimating geometry and conductivity parameters 有权
标题翻译：通过交替地估计几何和电导率参数来校正感应测井装置测量的系统和方法
公开(公告)号：US07269514B2
公开(公告)日：2007-09-11
申请号：US10843072
申请日：2004-05-11
申请人： Jiaqi Xiao
发明人： Jiaqi Xiao
IPC分类号： G01V1/40 , G01V3/10
CPC分类号： G01V3/28
摘要： A method and related system for correcting measurements obtained from an induction logging device. In one embodiment, the method comprises: receiving conductivity measurements from a multi-array induction tool; constructing a measurement pattern vector from the conductivity measurements; determining one or more geometry parameters associated with an approximation of the measurement pattern vector; finding borehole geometrical factors using current values of the one or more conductivity parameters and of the one or more geometry parameters; and calculating improved estimates of the one or more conductivity parameters using current values of the borehole geometric factors. The geometry parameters may be determined by finding a geometry pattern vector that best fits the measurement pattern vector. The determining, finding, and calculating operations may be repeated until a predetermined condition is satisfied. Finally, the conductivity measurements may be corrected for environment effects using calculated conductivity parameters and geometry parameters.
摘要翻译：一种用于校正从感应测井装置获得的测量的方法和相关系统。在一个实施例中，该方法包括：从多阵列感应工具接收电导率测量; 从电导率测量构建测量图案向量; 确定与所述测量图案向量的近似相关联的一个或多个几何参数; 使用所述一个或多个导电参数和所述一个或多个几何参数的当前值来确定钻孔几何因子; 并且使用钻孔几何因子的当前值来计算一个或多个导电参数的改进估计。几何参数可以通过找到最适合测量图案向量的几何图形向量来确定。可以重复确定，查找和计算操作，直到满足预定条件。最后，可以使用计算的电导率参数和几何参数来校正环境影响的电导率测量。

2. 发明授权

US07010429B2 Induction logging system and method featuring multi-frequency skin effect correction 有权
标题翻译：采用多频皮肤效应校正的感应测井系统及方法
公开(公告)号：US07010429B2
公开(公告)日：2006-03-07
申请号：US10646932
申请日：2003-08-22
申请人： Jiaqi Xiao
发明人： Jiaqi Xiao
IPC分类号： G01V3/18
CPC分类号： G01V3/28
摘要： A system and method of correcting skin effect of conductivity measurements made by electromagnetic induction well logging instruments. A limited number of measurements using different frequencies may be used. The skin effect correction system and method is capable of processing a complex signal waveform but only requires the in-phase signal measurements which are then corrected for the skin effect value and the geometric factors of the apparent conductivity measurements, thus making the corrected measurements suitable for advanced processing with modern array-type induction logging tools.
摘要翻译：电磁感应测井仪测量电导率测量的皮肤效应的系统和方法。可以使用使用不同频率的有限数量的测量。皮肤效应校正系统和方法能够处理复杂的信号波形，但仅需要同相信号测量，然后对皮肤效应值和表观电导率测量的几何因数进行校正，从而使校正的测量值适合于采用现代阵列式感应测井工具进行先进的加工。

3. 发明授权

US06219619B1 Inhomogeneous background-based software focusing method for array-type induction logging tools 失效
标题翻译：阵列型感应测井工具不均匀的背景软件聚焦方法
公开(公告)号：US06219619B1
公开(公告)日：2001-04-17
申请号：US09264105
申请日：1999-03-08
申请人： Jiaqi Xiao , Ingo Michael Geldmacher
发明人： Jiaqi Xiao , Ingo Michael Geldmacher
IPC分类号： G06F1900
CPC分类号： G01V3/28
摘要： A method of focusing the measurements from an array type induction logging tool using an inhomogeneous background rather than a homogeneous background. A modeled inhomogeneous background response can be separated from the measured response and focused directly using focusing target functions. The residue, the difference between the measured response and the background response, can then be focused using conventional linear focusing methods. A final focusing response is obtained by adding the two focusing responses.
摘要翻译：一种使用非均匀背景而不是均匀背景的阵列式感应测井工具聚焦测量的方法。模拟的不均匀背景响应可以与测量的响应分离，并直接使用聚焦目标函数。然后可以使用常规线性聚焦方法来聚焦剩余物，测量响应与背景响应之间的差异。通过添加两个聚焦响应获得最终聚焦响应。

4. 发明授权

US08030935B2 Minimizing the effect of borehole current in tensor induction logging tools 有权
标题翻译：最小化井下电流对张力感应测井工具的影响
公开(公告)号：US08030935B2
公开(公告)日：2011-10-04
申请号：US10965997
申请日：2004-10-15
申请人： Jiaqi Xiao , Li Gao
发明人： Jiaqi Xiao , Li Gao
IPC分类号： G01V3/10
CPC分类号： G01V3/28
摘要： Logging tools, methods, and computer programs for use in borehole logging are described. The logging tool includes three or more tensors, each tensor including one or more coils. Each coil is characterized by coil parameters including an axis orientation, a cross-sectional area, a number of turns, and a location. At least one of the coil axes is disposed at an angle to the borehole axis. One or more of the coil parameters are selected to minimize sensitivity to borehole current.
摘要翻译：描述了用于钻孔测井的测井工具，方法和计算机程序。测井工具包括三个或更多的张量，每个张量包括一个或多个线圈。每个线圈的特征在于包括轴定向，横截面积，匝数和位置的线圈参数。线圈轴中的至少一个以与井眼轴线成一角度的方式设置。选择一个或多个线圈参数以最小化对井眼电流的敏感性。

5. 发明申请

US20050256644A1 System and method for correcting induction logging device measurements by alternately estimating geometry and conductivity parameters 有权
标题翻译：通过交替地估计几何和电导率参数来校正感应测井装置测量的系统和方法
公开(公告)号：US20050256644A1
公开(公告)日：2005-11-17
申请号：US10843072
申请日：2004-05-11
申请人： Jiaqi Xiao
发明人： Jiaqi Xiao
IPC分类号： G01V1/40 , G01V3/28
CPC分类号： G01V3/28
摘要： A method and related system for correcting measurements obtained from an induction logging device. In one embodiment, the method comprises: receiving conductivity measurements from a multi-array induction tool; constructing a measurement pattern vector from the conductivity measurements; determining one or more geometry parameters associated with an approximation of the measurement pattern vector; finding borehole geometrical factors using current values of the one or more conductivity parameters and of the one or more geometry parameters; and calculating improved estimates of the one or more conductivity parameters using current values of the borehole geometric factors. The geometry parameters may be determined by finding a geometry pattern vector that best fits the measurement pattern vector. The determining, finding, and calculating operations may be repeated until a predetermined condition is satisfied. Finally, the conductivity measurements may be corrected for environment effects using calculated conductivity parameters and geometry parameters.
摘要翻译：一种用于校正从感应测井装置获得的测量的方法和相关系统。在一个实施例中，该方法包括：从多阵列感应工具接收电导率测量; 从电导率测量构建测量图案向量; 确定与所述测量图案向量的近似相关联的一个或多个几何参数; 使用所述一个或多个导电参数和所述一个或多个几何参数的当前值来确定钻孔几何因子; 并且使用钻孔几何因子的当前值来计算一个或多个导电参数的改进估计。几何参数可以通过找到最适合测量图案向量的几何图形向量来确定。可以重复确定，查找和计算操作，直到满足预定条件。最后，可以使用计算的电导率参数和几何参数来校正环境影响的电导率测量。

6. 发明授权

US06591194B1 Vertical 1-D inversion with thin layers of equal thickness 有权
标题翻译：垂直1-D反转，厚度相同的薄层
公开(公告)号：US06591194B1
公开(公告)日：2003-07-08
申请号：US09794963
申请日：2001-02-27
申请人： Liming Yu , Berthold Kriegshäuser , Otto Fanini , Jiaqi Xiao
发明人： Liming Yu , Berthold Kriegshäuser , Otto Fanini , Jiaqi Xiao
IPC分类号： G01V318
CPC分类号： G01V3/28
摘要： Measurements made by a multicomponent logging tool in a borehole are inverted to obtain horizontal and vertical resistivities of a formation traversed by the borehole. The model includes layers of equal thickness, each layer having a horizontal resistivity and a vertical resistivity. For a vertical borehole, the inversion is done by first iteratively obtaining the horizontal resistivities of the layer using the Hzz component of the data wherein in successive steps of the iteration, the horizontal resistivity for each layer is multiplied by a ratio of a model Hzz output to the measured Hzz. The vertical resistivity model is set equal to the derived horizontal resistivities and the iterative process is repeated using the ratio of the model Hxx output to the measured Hxx. A similar process is used for boreholes with a known inclination. For such an inclined borehole, the two horizontal components Hxx and Hyy are summed to give a horizontal measurement Hxxyy that is independent of tool rotation. The first step uses a ratio of the model Hzz output to the measured Hzz data to obtain an apparent resistivity, and, in the second step, the ratio of the model Hxxyy output and the measured Hxyy data are used along with a known relationship between the apparent resistivity and the horizontal and vertical resistivities in an iterative manner. No Jacobians or gradients are necessary in the method, so that computational times are small relative to prior art gradient methods.
摘要翻译：通过钻孔中的多组分测井工具进行的测量被反转，以获得由井眼穿过的地层的水平和垂直电阻率。该模型包括相同厚度的层，每层具有水平电阻率和垂直电阻率。对于垂直钻孔，通过首先使用数据的Hzz分量迭代地获得层的水平电阻率来进行反演，其中在迭代的连续步骤中，每层的水平电阻乘以模型Hzz输出的比率到测量的Hzz。将垂直电阻率模型设置为等于导出的水平电阻率，并使用Hxx输出模型与测量的Hxx的比值重复迭代过程。类似的工艺用于具有已知倾角的钻孔。对于这样的倾斜钻孔，两个水平分量Hxx和Hyy相加得到一个与工具旋转无关的水平测量Hxxyy。第一步使用Hzz型输出与测量的Hzz数据的比率来获得视电阻率，并且在第二步中，使用模型Hxxyy输出和测量的Hxyy数据的比率以及已知的关系视电阻率和水平和垂直电阻率的迭代方式。在该方法中不需要Jacobian或梯度，因此相对于现有技术的梯度方法，计算时间较小。

7. 发明授权

US6049209A Axial resolution enhancement method for resistivity well logs which accounts for lateral variations in the resistivity of earth formations penetrated by a wellbore 失效
标题翻译：电磁测井的轴向分辨率增强方法，其考虑了井眼渗透的地层电阻率的横向变化
公开(公告)号：US6049209A
公开(公告)日：2000-04-11
申请号：US78875
申请日：1998-05-14
申请人： Jiaqi Xiao , David R. Beard , Bill Harold Corley , Ingo M. Geldmacher
发明人： Jiaqi Xiao , David R. Beard , Bill Harold Corley , Ingo M. Geldmacher
IPC分类号： G01V3/26 , G01V3/10 , G01V3/18
CPC分类号： G01V3/26
摘要： A method for enhancing the axial resolution of conductivity well log measurements of in earth formation zones radially distal from a wellbore. The method includes calculating differential axial resolution information present in measurements of the conductivity of a zone radially proximal to the wellbore by low pass filtering the proximal zone measurements so as to have the same axial resolution as the measurements of earth formations radially distal from the wellbore, and subtracting the low pass filtered measurements from the measurements of the proximal zone. The differential axial resolution information is projected to conductivity values which would obtain if the proximal zone conductivity were equal to the distal zone conductivity. The projection is calculated by determining a projection factor, which is related to a weighted average of a ratio of conductivity in the distal zone with respect to the conductivity in the proximal zone. The projected differential axial resolution information is then added to the conductivity measurements of the distal zone to obtain higher resolution measurements of conductivity in the radially distal zone.
摘要翻译：一种用于增强径向远离井眼的地层形成区域的导电率测井的轴向分辨率的方法。该方法包括通过对近端区域测量进行低通滤波来计算径向靠近井眼的区域的导电性测量中存在的差分轴向分辨率信息，以便具有与径向远离井筒的地层测量结果相同的轴向分辨率，并从近端区域的测量中减去低通滤波的测量值。差分轴向分辨率信息被预测为如果近端区电导率等于远端区电导率将获得的电导率值。通过确定投影因子来计算投影，其与远端区域中的电导率相对于近端区域中的电导率的加权平均值相关。然后将投影的差分轴向分辨率信息添加到远端区域的电导率测量值，以获得在径向远端区域中的更高分辨率的电导率测量。

8. 发明申请

US20050075789A1 Method and apparatus for inversion processing of well logging data in a selected pattern space 有权
公开(公告)号：US20050075789A1
公开(公告)日：2005-04-07
申请号：US10676467
申请日：2003-10-01
申请人： Jiaqi Xiao , Michael Bittar
发明人： Jiaqi Xiao , Michael Bittar
IPC分类号： G01V11/00 , G06F19/00
CPC分类号： G01V11/00
摘要： Method and apparatus for deriving information regarding a subsurface geophysical formation. Well logging data is acquired for the subsurface geophysical formation. Geometrical parameters for the subsurface geophysical formation are determined by inversion processing of the acquired well logging data in a pattern space while formation conductivities for the subsurface geophysical formation are determined by inversion processing of the acquired well logging data in a measurement space. The processing may be iteratively applied until satisfied formation parameters are achieved.

9. 发明授权

US5774360A Method of correcting formation resistivity well logs for the effects of formation layer inclination with respect to the wellbore 失效
标题翻译：校正地层电阻率测井的方法，用于相对于井筒的地层倾角的影响
公开(公告)号：US5774360A
公开(公告)日：1998-06-30
申请号：US622365
申请日：1996-03-26
申请人： Jiaqi Xiao , Qiang Zhou
发明人： Jiaqi Xiao , Qiang Zhou
IPC分类号： G01V3/28 , G06F19/00
CPC分类号： G01V3/28
摘要： A method for correcting response of an induction logging instrument for inclination of earth formations with respect to an axis of the instrument. The instrument has a transmitter and a plurality of receivers at spaced apart locations. The method includes calculating expected receiver responses of simulated media having different conductivities. The calculations are performed for a plurality of different inclinations. The calculations are also performed for media having a plurality of different conductivity contrasts. 2-dimensional filters corresponding to a charge effect portion of each of the expected responses are calculated. 2-dimensional filters corresponding to a volumetric effect portion of each of the expected responses are calculated. An angle of inclination of the earth formations with respect to the instrument is determined. An approximate conductivity contrast of the earth formations is determined. Coefficients are interpolated between the 2-dimensional charge effect filters having simulated inclinations and contrasts closest to the angle of inclination and conductivity contrast of the formations. The interpolated filter coefficients are applied to measured receiver responses, generating charge effect-filtered measured responses. Coefficients are interpolated between the 2-dimensional volumetric effect filters having simulated inclinations and conductivity contrasts closest to the angle of inclination and conductivity contrast of the formations. The interpolated coefficients are applied to the charge effect-filtered measured responses to calculate corrected receiver responses.
摘要翻译：一种用于校正感应测井仪器相对于仪器轴线倾斜地层的响应的方法。仪器在间隔开的位置具有发射器和多个接收器。该方法包括计算具有不同电导率的模拟介质的预期接收机响应。针对多个不同的倾向进行计算。还对具有多个不同电导率对比度的介质进行计算。计算与每个预期响应的电荷效应部分对应的2维滤波器。计算对应于每个预期响应的体积效应部分的2维滤波器。确定地层相对于仪器的倾斜角度。确定地层的近似电导率对比度。在具有模拟倾斜度和最接近倾斜角度的对比度的二维电荷效应滤波器和地层的电导率对比度之间插入系数。内插滤波器系数被应用于测量的接收机响应，产生电荷效应滤波的测量响应。在具有模拟倾斜度的二维体积效应滤波器和最接近地层的倾斜角度和电导率对比度的电导率对比度之间内插系数。内插系数被应用于电荷效应滤波的测量响应以计算校正的接收机响应。

10. 发明申请

US20060082374A1 Minimizing the effect of borehole current in tensor induction logging tools 有权
标题翻译：最小化井下电流对张力感应测井工具的影响
公开(公告)号：US20060082374A1
公开(公告)日：2006-04-20
申请号：US10965997
申请日：2004-10-15
申请人： Jiaqi Xiao , Li Gao
发明人： Jiaqi Xiao , Li Gao
IPC分类号： G01R33/02
CPC分类号： G01V3/28
摘要： Logging tools, methods, and computer programs for use in borehole logging are described. The logging tool includes three or more tensors, each tensor including one or more coils. Each coil is characterized by coil parameters including an axis orientation, a cross-sectional area, a number of turns, and a location. At least one of the coil axes is disposed at an angle to the borehole axis. One or more of the coil parameters are selected to minimize sensitivity to borehole current.
摘要翻译：描述了用于钻孔测井的测井工具，方法和计算机程序。测井工具包括三个或更多的张量，每个张量包括一个或多个线圈。每个线圈的特征在于包括轴定向，横截面积，匝数和位置的线圈参数。线圈轴中的至少一个以与井眼轴线成一角度的方式设置。选择一个或多个线圈参数以最小化对井眼电流的敏感性。

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