公开(公告)号：US07991556B2

公开(公告)日：2011-08-02

申请号：US11955489

申请日：2007-12-13

Applicant: Jaideva C. Goswami ,  Denis Heliot

Inventor： Jaideva C. Goswami ,  Denis Heliot

IPC: G01V1/40

CPC classification number: G01V1/48

Abstract: A method for analyzing formation data includes decomposing the formation data into simple components that can be used to reconstruct the formation data, wherein the decomposing is performed at a first location and includes a process to minimize an overlap between the simple components; and transmitting parameters representing the simple components to a second location for reconstructing the formation data. A system for analyzing formation data that includes a processor and a memory that stores a program having instructions for decomposing the formation data into simple components that can be used to reconstruct the formation data, wherein the decomposing is performed at a first location and includes a process to minimize an overlap between the simple components; and transmitting parameters representing the simple components to a second location for reconstructing the formation data.

Abstract translation: 用于分析地层数据的方法包括将地层数据分解成可用于重构地层数据的简单分量，其中在第一位置执行分解，并且包括使简单分量之间的重叠最小化的过程; 以及将表示简单组件的参数发送到用于重构地层数据的第二位置。 一种用于分析地层数据的系统，包括处理器和存储器，存储具有用于将地层数据分解成可用于重建地层数据的简单分量的指令的程序，其中在第一位置执行分解，并且包括处理 以最小化简单组件之间的重叠; 以及将表示简单组件的参数发送到用于重构地层数据的第二位置。

公开(公告)号：US20110087459A1

公开(公告)日：2011-04-14

申请号：US12899140

申请日：2010-10-06

Applicant: Alexander F. Zazovsky ,  Alexander Skibin ,  Darya Mustafina ,  Jaideva C. Goswami

Inventor： Alexander F. Zazovsky ,  Alexander Skibin ,  Darya Mustafina ,  Jaideva C. Goswami

IPC: G06F19/00 ,  G06G7/58 ,  G06F3/00

CPC classification number: E21B49/10

Abstract: The examples described herein relate to methods and apparatus for cleanup prediction and monitoring. A disclosed method of predicting cleanup of a sample fluid obtained by a downhole tool includes drawing the sample fluid into the downhole tool via a probe assembly; measuring optical densities of the sample fluid at a plurality of different respective times; selecting at least some of the measured optical densities as fitting points; identifying one or more inversion parameters; and performing, via a processor, an inversion using the fitting points, the inversion parameters and simulation data to generate data associated with a predicted cleanup of the sample fluid.

Abstract translation: 本文描述的示例涉及用于清理预测和监视的方法和装置。 公开的一种预测由井下工具获得的样品流体的净化的方法包括通过探针组件将样品流体抽入井下工具; 在多个不同的时间测量样品流体的光密度; 选择所测量的光密度中的至少一些作为拟合点; 识别一个或多个反演参数; 以及通过处理器执行使用拟合点的反演，反演参数和模拟数据，以生成与预测的样品流体清除相关联的数据。

公开(公告)号：US06373248B1

公开(公告)日：2002-04-16

申请号：US09644930

申请日：2000-08-23

Applicant: Martin E. Poitzsch ,  Peter Speier ,  Krishnamurthy Ganesan ,  Shu-Kong Chang ,  Jaideva C. Goswami

Inventor： Martin E. Poitzsch ,  Peter Speier ,  Krishnamurthy Ganesan ,  Shu-Kong Chang ,  Jaideva C. Goswami

IPC: G01V300

CPC classification number: G01V3/32 ,  G01N24/081 ,  G01R33/34046 ,  G01R33/3415 ,  G01R33/3607 ,  G01R33/3664 ,  G01R33/5612

Abstract: The present invention relates generally to an apparatus and method for obtaining an azimuthally resolved nuclear magnetic resonance measurement of an earth formation traversed by a borehole. The measurement can be made while drilling or using a wireline tool. A receiving rf antenna having a non-axisymmetric response pattern is used to obtain the azimuthally resolved nuclear magnetic resonance measurement. The antenna employs axial currents which excite an azimuthally oriented rf magnetic field. For this situation, the static magnetic field is either radial or axial in its orientation. The antenna generates a relatively long, in axial extent, region of generally uniform static field magnitude and polarization in the formation. The present invention facilitates low profile antenna configurations that can permit dispensing with the reduction of the inner diameter of the drill collar at the rf antenna location.

公开(公告)号：US06366089B1

公开(公告)日：2002-04-02

申请号：US09644933

申请日：2000-08-23

Applicant: Martin E. Poitzsch ,  Peter Speier ,  Krishnamurthy Ganesan ,  Shu-Kong Chang ,  Jaideva C. Goswami

Inventor： Martin E. Poitzsch ,  Peter Speier ,  Krishnamurthy Ganesan ,  Shu-Kong Chang ,  Jaideva C. Goswami

IPC: G01V300

CPC classification number: G01V3/32 ,  G01N24/081 ,  G01R33/34046 ,  G01R33/3415 ,  G01R33/3607 ,  G01R33/3664 ,  G01R33/5612

Abstract: The present invention relates generally to an apparatus and method for obtaining an azimuthally resolved nuclear magnetic resonance measurement of an earth formation traversed by a borehole. The measurement can be made while drilling or using a wireline tool. A receiving rf antenna having a non-axisymmetric response pattern is used to obtain the azimuthally resolved nuclear magnetic resonance measurement. The antenna employs axial currents which excite an azimuthally oriented rf magnetic field. For this situation, the static magnetic field is either radial or axial in its orientation. The antenna generates a relatively long, in axial extent, region of generally uniform static field magnitude and polarization in the formation. The present invention facilitates low profile antenna configurations that can permit dispensing with the reduction of the inner diameter of the drill collar at the rf antenna location.

Abstract translation: 本发明一般涉及一种用于获得由钻孔穿过的地层的方位解析核磁共振测量的装置和方法。 可以在钻孔或使用有线工具时进行测量。 使用具有非轴对称响应模式的接收rf天线来获得方位解析的核磁共振测量。 该天线采用激发方位取向rf磁场的轴向电流。 对于这种情况，静磁场在其方向上是径向的或轴向的。 天线在轴向范围内产生相对较长的，在地层中大体均匀的静态场强和极化的区域。 本发明有助于可以允许在射频天线位置减小钻铤的内径的小型天线配置。

公开(公告)号：US06255817B1

公开(公告)日：2001-07-03

申请号：US09094201

申请日：1998-06-09

Applicant: Martin E. Poitzsch ,  Peter Speier ,  Krishnamurthy Ganesan ,  Shu-Kong Chang ,  Jaideva C. Goswami

Inventor： Martin E. Poitzsch ,  Peter Speier ,  Krishnamurthy Ganesan ,  Shu-Kong Chang ,  Jaideva C. Goswami

IPC: G01V300

CPC classification number: G01V3/32 ,  G01N24/081 ,  G01R33/34046 ,  G01R33/3415 ,  G01R33/3607 ,  G01R33/3664 ,  G01R33/5612

Abstract: The present invention relates generally to an apparatus and method for obtaining an azimuthally resolved nuclear magnetic resonance measurement of an earth formation traversed by a borehole. The measurement can be made while drilling or using a wireline tool. A receiving rf antenna having a non-axisymmetric response pattern is used to obtain the azimuthally resolved nuclear magnetic resonance measurement. The antenna employs axial currents which excite an azimuthally oriented rf magnetic field. For this situation, the static magnetic field is either radial or axial in its orientation. The antenna generates a relatively long, in axial extent, region of generally uniform static field magnitude and polarization in the formation. The present invention facilitates low profile antenna configurations that can permit dispensing with the reduction of the inner diameter of the drill collar at the rf antenna location.

Abstract translation: 本发明一般涉及一种用于获得由钻孔穿过的地层的方位解析核磁共振测量的装置和方法。 可以在钻孔或使用有线工具时进行测量。 使用具有非轴对称响应模式的接收rf天线来获得方位解析的核磁共振测量。 该天线采用激发方位取向rf磁场的轴向电流。 对于这种情况，静磁场在其方向上是径向的或轴向的。 天线在轴向范围内产生相对较长的，在地层中大体均匀的静态场强和极化的区域。 本发明有助于可以允许在射频天线位置减小钻铤的内径的小型天线配置。