公开(公告)号：US07158049B2

公开(公告)日：2007-01-02

申请号：US10249223

申请日：2003-03-24

申请人： Albert Hoefel ,  Jaideva Goswami

发明人： Albert Hoefel ,  Jaideva Goswami

IPC分类号： G01V3/00 ,  H04H9/00 ,  H04B11/00 ,  H04B1/18 ,  E21B47/00

CPC分类号： H04B1/04 ,  H03B5/1221 ,  H03B5/1231 ,  H03B5/1234 ,  H03B5/1265 ,  H03C5/00

摘要： The invention includes a wireless communication circuit and a method of communicating with wireless signals that feature a tank circuit having an inductor connected in parallel with a capacitor circuit. The capacitor circuit includes a pair of capacitors coupled in series. Each of the capacitors is connected in common to ground and has a capacitive value associated. A feedback network is connected to selectively bias the tank circuit to produce a signal having an amplitude. The amplitude of the signal is a function of a ratio of the capacitive values associated with the capacitor circuit. The frequency of the signal is defined by the inductor and the capacitor circuit. The tank circuit is multifunctional in that it may be biased to function as a transmitter and a receiver.

摘要翻译： 本发明包括无线通信电路和与具有与电容器电路并联的电感器的电路的无线信号进行通信的方法。 电容器电路包括串联耦合的一对电容器。 每个电容器共同连接到地，并具有相关的电容值。 连接反馈网络以选择性地偏置储能电路以产生具有振幅的信号。 信号的幅度是与电容器电路相关联的电容值的比率的函数。 信号的频率由电感和电容电路定义。 储能电路是多功能的，因为它可以被偏置以用作发射器和接收器。

公开(公告)号：US20050171697A1

公开(公告)日：2005-08-04

申请号：US10708012

申请日：2004-02-02

申请人： Denis Heliot ,  Jacques Tabanou ,  Jaideva Goswami

发明人： Denis Heliot ,  Jacques Tabanou ,  Jaideva Goswami

IPC分类号： G01V3/38 ,  G06F19/00 ,  G06G7/48

CPC分类号： G01V3/38

摘要： A system and method is disclosed for determining a physical characteristic or property associated with each of a plurality of layers of laminated formation traversed by a wellbore, wherein the laminated formation includes thin beds. The method includes providing one or more high resolution logs of a formation property for the laminated formation. From this log, the bed boundaries are detected and more particularly, the individual beds disposed between the boundaries. Then, the facies for each of the plurality of the beds detected is identified, using one or more high resolution logs of the laminated formation. Each of the identified facies is then defined. This includes importing volumetric descriptions for each of the facies and assigning one of the volumetric descriptions to each of a plurality of the beds detected, wherein each of the volumetric descriptions assigned to a bed is derived from a bed having the same facies. One or more squared logs for formation property is then generated by using the imported volumetric descriptions of the facies for plurality to generate a value of the formation property for each of the beds. This squared log is then convolved to generate a reconstructed log. The reconstructed log is compared with a low resolution log of the formation property for laminated formation. By adjusting the values of the squared log the difference between the reconstructed log and the squared log may be minimized. In this way, and by repeating the adjusting compared steps, and adjusted squared log may be suggested as an optimized squared log of the formation property. The optimized squared logs may then be the subject of a volumetric analyses to generate an output medium having the square log and the volumetric analyses thereon.

摘要翻译： 公开了一种系统和方法，用于确定与由井筒穿过的层叠地层的多个层中的每一层相关联的物理特性或性质，其中所述层压结构包括薄床。 该方法包括提供一层或多层用于叠层地层的地层性能的高分辨率测井。 从该日志中检测床边界，更具体地说，设置在边界之间的各个床。 然后，使用层叠地层的一个或多个高分辨率原木来识别检测到的多个床中的每一个的相。 然后定义每个识别的相。 这包括导入每个相的体积描述，并将一个体积描述分配给检测到的多个床中的每一个，其中分配给床的每个体积描述源自具有相同相的床。 然后通过使用对于多个相的相的进口体积描述来生成每个床的形成性质的值来生成用于形成性质的一个或多个平方的原木。 然后将该平方日志进行卷积以生成重建的日志。 将重建的对数与层压成形的形成性质的低分辨率对数进行比较。 通过调整平方日志的值，重建日志和平方日志之间的差异可能被最小化。 以这种方式，并通过重复调整比较步骤，并且调整的平方日志可以被建议为形成特性的优化平方对数。 然后，优化的平方日志可以是体积分析的对象，以产生具有平方对数的输出介质和其上的体积分析。

公开(公告)号：US20110298462A1

公开(公告)日：2011-12-08

申请号：US13128506

申请日：2009-11-17

申请人： Brian Clark ,  Mark E. Flaum ,  Jan Morley ,  Jaideva Goswami ,  Miguel F. Pabon

发明人： Brian Clark ,  Mark E. Flaum ,  Jan Morley ,  Jaideva Goswami ,  Miguel F. Pabon

IPC分类号： G01V3/08 ,  G01R35/00

CPC分类号： G01V3/26 ,  E21B47/024

摘要： Systems and methods for improved acquisition of magnetic field data for magnetic ranging while drilling are provided. In one embodiment, such a system may include a borehole assembly and data processing circuitry. The borehole assembly may include an electric current driving tool configured to cause a current to flow across a drill collar of the borehole assembly and an internal magnetometer disposed within the drill collar and between the insulated gap and an end of the borehole assembly, which may be configured to measure magnetic field signals that penetrate the drill collar. The data processing circuitry may be configured to remove all or part of a noise component of the magnetic field signals that arises due to an eccentricity in the drill collar

摘要翻译： 提供了用于在钻孔时磁场测量的磁场数据的改进获取的系统和方法。 在一个实施例中，这样的系统可以包括钻孔组件和数据处理电路。 钻孔组件可以包括电流驱动工具，其构造成使电流流过钻孔组件的钻铤，以及设置在钻铤内并且在绝缘间隙和钻孔组件的端部之间的内部磁力计，其可以是 被配置为测量穿过钻铤的磁场信号。 数据处理电路可以被配置为去除由于钻铤中的偏心引起的磁场信号的全部或部分噪声分量

公开(公告)号：US09360581B2

公开(公告)日：2016-06-07

申请号：US13128506

申请日：2009-11-17

申请人： Brian Clark ,  Mark E. Flaum ,  Jan Morley ,  Jaideva Goswami ,  Miguel F. Pabon

发明人： Brian Clark ,  Mark E. Flaum ,  Jan Morley ,  Jaideva Goswami ,  Miguel F. Pabon

IPC分类号： G01V3/08 ,  G01V3/26 ,  E21B47/024

CPC分类号： G01V3/26 ,  E21B47/024

摘要： A method for drilling a well includes applying a current across a drill collar that surrounds an internal magnetometer. The current travels across the drill collar and along one or more other current paths to return to the drill collar. The method also includes using the magnetometer to measure magnetic fields due to the current being applied across the drill collar and the current across one or more other current paths while the drill collar is disposed at a first angle of rotation and rotating the drill collar to a second angle of rotation. The method further includes measuring the magnetic fields using the internal magnetometer while the drill collar is disposed at the second angle of rotation and determining a relationship between the current across the drill collar and a portion of the magnetic fields due to the current across the drill collar measurable by the internal magnetometer.

摘要翻译： 用于钻井的方法包括在围绕内部磁力计的钻铤上施加电流。 电流穿过钻铤并且沿着一个或多个其它电流路径行进以返回钻铤。 该方法还包括使用磁力计来测量磁场，这是因为电流被施加在钻铤上的电流和跨过一个或多个其它电流路径的电流，同时钻铤设置在第一旋转角度并将钻铤旋转到 第二个旋转角度。 该方法还包括使用内部磁力计测量磁场，同时钻铤以第二旋转角度设置，并且确定由于穿过钻铤的电流而导致钻铤和电场的一部分之间的电流之间的关系 可由内部磁力计测量。

公开(公告)号：US20120067644A1

公开(公告)日：2012-03-22

申请号：US13128261

申请日：2009-11-23

申请人： Jaideva Goswami ,  Brian Clark ,  Betty Rong ,  Miguel F. Pabon ,  Jan S. Morley

发明人： Jaideva Goswami ,  Brian Clark ,  Betty Rong ,  Miguel F. Pabon ,  Jan S. Morley

IPC分类号： E21B47/02 ,  G01V3/30

CPC分类号： G01V3/26 ,  E21B47/02216 ,  E21B47/026 ,  E21B49/00

摘要： A method and apparatus are provided for making directional measurements toward a formation of different resistivity that is proximate to the borehole, but which is not penetrated by the borehole. The disclosed methods and apparatus include the use of at least one insulated gap and at least one magnetometer positioned within a non-magnetic housing that is disposed within a non-magnetic tubular. An electric current is applied across the insulated gap, which results in current leaking into the surrounding formations. When a formation of contrasting resistivity is proximate to the logging apparatus, the magnetometer detects a secondary magnetic due to the contrasting formation. The direction of the secondary magnetic field can be used to determine the direction to the contrasting formation. The magnitude of the secondary magnetic field can be used to determine the distance position to the contrasting formation.

摘要翻译： 提供了一种方法和装置，用于朝向靠近钻孔但不被钻孔渗透的不同电阻率的形成进行方向测量。 所公开的方法和装置包括使用至少一个绝缘间隙和位于设置在非磁性管内的非磁性壳体内的至少一个磁力计。 在绝缘间隙上施加电流，这导致电流泄漏到周围的地层中。 当对比电阻率的形成靠近测井装置时，磁力计由于形成对比而检测次级磁。 二次磁场的方向可用于确定对比组合的方向。 次级磁场的大小可用于确定对比组合的距离位置。

公开(公告)号：US20060161352A1

公开(公告)日：2006-07-20

申请号：US11124528

申请日：2005-05-06

申请人： Jaideva Goswami ,  Ali Ozbek ,  Amit Mukherjee ,  Reza Taherian

发明人： Jaideva Goswami ,  Ali Ozbek ,  Amit Mukherjee ,  Reza Taherian

IPC分类号： G01V3/18 ,  G01V9/00

CPC分类号： G01V11/00 ,  G01V3/18

摘要： Methods and systems for extracting formation properties from formation logging data is disclosed. A method includes obtaining a deconvolution filter; and processing the formation logging data using the deconvolution filter to produce estimates of the formation properties. The estimates of the formation properties may be further processed with a diffusion filter, which may be an anisotropic diffusion filter. A system for extracting formation properties from formation logging data includes a central processing unit and a memory, wherein the memory stores a program having instructions for performing a method that includes designing a deconvolution filter; and processing the formation logging data using the deconvolution filter to produce estimates of the formation properties.

摘要翻译： 公开了从地层测井数据中提取地层特征的方法和系统。 一种方法包括获得去卷积滤波器; 以及使用去卷积滤波器处理地层测井数据以产生地层特性的估计。 可以用扩散过滤器进一步处理形成性质的估计，扩散过滤器可以是各向异性扩散过滤器。 一种用于从地层测井数据中提取地层特征的系统包括中央处理单元和存储器，其中存储器存储具有执行包括设计去卷积滤波器的方法的指令的程序; 以及使用去卷积滤波器处理地层测井数据以产生地层特性的估计。

公开(公告)号：US09360580B2

公开(公告)日：2016-06-07

申请号：US13128261

申请日：2009-11-23

申请人： Jaideva Goswami ,  Brian Clark ,  Betty Rong ,  Miguel F. Pabon ,  Jan S. Morley

发明人： Jaideva Goswami ,  Brian Clark ,  Betty Rong ,  Miguel F. Pabon ,  Jan S. Morley

IPC分类号： G01V3/26 ,  E21B47/026 ,  E21B47/022 ,  E21B49/00

CPC分类号： G01V3/26 ,  E21B47/02216 ,  E21B47/026 ,  E21B49/00

摘要： A method and apparatus are provided for making directional measurements toward a formation of different resistivity that is proximate to the borehole, but which is not penetrated by the borehole. The methods and apparatus include the use of at least one insulated gap and at least one magnetometer positioned within a non-magnetic housing that is disposed within a non-magnetic tubular. An electric current is applied across the insulated gap, which results in current leaking into the surrounding formations. When a formation of contrasting resistivity is proximate to the logging apparatus, the magnetometer detects a secondary magnetic field due to the contrasting formation. The direction of the secondary magnetic field can be used to determine the direction to the contrasting formation. The magnitude of the secondary magnetic field can be used to determine the distance position to the contrasting formation.

摘要翻译： 提供了一种方法和装置，用于朝向靠近钻孔但不被钻孔渗透的不同电阻率的形成进行方向测量。 所述方法和装置包括使用至少一个绝缘间隙和至少一个放置在非磁性管内的非磁性壳体内的磁力计。 在绝缘间隙上施加电流，这导致电流泄漏到周围的地层中。 当形成对比电阻率接近测井装置时，磁力计由于形成对比而检测次级磁场。 二次磁场的方向可用于确定对比组合的方向。 次级磁场的大小可用于确定对比组合的距离位置。

公开(公告)号：US20050240349A1

公开(公告)日：2005-10-27

申请号：US10711242

申请日：2004-09-03

申请人： Jaideva Goswami ,  Ashok Srivastava ,  Denis Heliot ,  Thomas Neville

发明人： Jaideva Goswami ,  Ashok Srivastava ,  Denis Heliot ,  Thomas Neville

IPC分类号： G01V20060101 ,  G01V1/48 ,  G06F17/00 ,  G06F19/00

CPC分类号： G01V1/48

摘要： A method and apparatus are useful for decomposing a complex distribution of data by modeling the complex distribution as a sum of discrete simple distributions, and processing the simple distributions independently. The independent processing enables the complex distribution to be reconstructed without the simple distributions that are concluded to be spurious. The simple distributions preferably include one or more statistical distributions that are subject to being characterized by a reduced data set for efficient communication and reconstruction of the complex distribution. The modeling and processing steps preferably employ one or more evolutionary algorithms.

摘要翻译： 一种方法和装置可用于通过将复数分布建模为离散简单分布的和来分解数据的复杂分布，并且独立地处理简单分布。 独立处理使得能够重构复杂的分布，而不需要将结论为假的简单分布重构。 简单的分布优选地包括一个或多个统计分布，其被表征为用于复杂分布的有效通信和重建的简化数据集。 建模和处理步骤优选采用一个或多个进化算法。