公开(公告)号：US20050083161A1

公开(公告)日：2005-04-21

申请号：US10711309

申请日：2004-09-09

Applicant: Gerald Minerbo ,  Sofia Davydycheva ,  Hanming Wang ,  Dean Homan

Inventor： Gerald Minerbo ,  Sofia Davydycheva ,  Hanming Wang ,  Dean Homan

IPC: G01V3/28 ,  G01V3/08

CPC classification number: G01V3/28

Abstract: An induction tool includes a conductive mandrel; at least one array including a transmitter, a bucking coil, and a receiver disposed in an insulating tool body surrounding the conductive mandrel; and an electrode disposed on the insulating tool body at a selected location between the bucking coil and the receiver, wherein the selected location is spaced from the transmitter at a distance corresponding approximately to the harmonic mean of the distance between the transmitter and the bucking coil and the distance between the transmitter and the receiver, and wherein the electrode includes a contact forming a conductive path to the conductive mandrel. Additional electrodes may be disposed above and below each transmitter and receiver coil to reduce sensitivity to eccentricity of the tool in the borehole.

Abstract translation: 感应工具包括导电心轴; 至少一个阵列，包括发射器，降压线圈和设置在围绕导电心轴的绝缘工具主体中的接收器; 以及电极，其设置在所述绝缘工具主体之间的所述抵消线圈和所述接收器之间的选定位置处，其中所述选定位置与所述发射器间隔开大致相当于所述发射器和所述抗弯线圈之间的距离的谐波平均值的距离;以及 发射器和接收器之间的距离，并且其中电极包括形成到导电心轴的导电路径的触点。 附加的电极可以设置在每个发射器和接收器线圈之上和之下，以降低钻孔中工具的偏心度的灵敏度。

公开(公告)号：US6047240A

公开(公告)日：2000-04-04

申请号：US8040

申请日：1998-01-16

Applicant: Thomas D. Barber ,  Zlatko Sijercic ,  Gerald Minerbo ,  Tracy E. Broussard

Inventor： Thomas D. Barber ,  Zlatko Sijercic ,  Gerald Minerbo ,  Tracy E. Broussard

IPC: G01V3/28 ,  G06F19/00

CPC classification number: G01V3/28

Abstract: The present invention relates generally to a method and apparatus for evaluating the resistivity of invaded formations at high apparent dip angle. A multi-array induction tool having a plurality of arrays is disposed in a borehole. Signals from a subset of coils of the array are selected to probe different volumes of the formation surrounding the borehole. The maximum entropy method is used to process data from the subset of coils to effectively remove distortions produced by shoulder and dip effect in the presence of shallow, moderate, or deep invasion. An advantage of the invention is a computer program that accurately predicts the response of induction arrays in an assumed layered formation with dip. After processing the data, the resulting multi-array induction log will indicate a conductivity profile for the subset of coils which is substantially identical to that of an array in a thick bed, without dip or layering, with the same invasion profile. A 1D radial inversion of the resulting logs at each point in depth will give a closer estimate of the actual formation parameters, R.sub.xo, R.sub.t, and the invasion radius.

Abstract translation: 本发明一般涉及用于评估在高视角下侵入地层的电阻率的方法和装置。 具有多个阵列的多阵列感应工具设置在钻孔中。 选择来自阵列的线圈子集的信号以探测围绕钻孔的不同体积的地层。 最大熵方法用于处理来自线圈子集的数据，以有效地消除在浅，中等或深入侵的存在下由肩部产生的失真和倾角效应。 本发明的一个优点是计算机程序，可准确地预测具有倾斜的假定分层结构中的感应阵列的响应。 在处理数据之后，所得到的多阵列感应测井将指示线圈子集的电导率分布，其与粗床中的阵列基本相同，没有浸入或分层，具有相同的侵入曲线。 在每个深度的深度上，所得到的日志的1D径向反转将给出实际地层参数Rxo，Rt和入侵半径的更近估计。

公开(公告)号：US20080097732A1

公开(公告)日：2008-04-24

申请号：US11792762

申请日：2004-12-20

Applicant: Jean-Marc Donadille ,  Martin Luling ,  Gerald Minerbo

Inventor： Jean-Marc Donadille ,  Martin Luling ,  Gerald Minerbo

IPC: G06F17/10

CPC classification number: G01V3/20

Abstract: The present invention provides methods and systems for numerically computing tool response sensitivities of subterranean measurement tools such as resistivity logging tools. The methods and systems enable much faster computation of sensitivities than previously available for resistivity tools. For typical tools that apply dozens or hundreds of parameters, the methods of the present invention may reduce sensitivities computation time by a factor substantially equal to the number of parameters.

Abstract translation: 本发明提供用于数字计算诸如电阻率测井工具的地下测量工具的工具响应灵敏度的方法和系统。 与以前可用于电阻率工具的方法和系统相比，这些方法和系统能够更快地计算灵敏度。 对于适用数十或数百个参数的典型工具，本发明的方法可以将灵敏度计算时间减少一个基本上等于参数数量的因子。

公开(公告)号：US20060202806A1

公开(公告)日：2006-09-14

申请号：US11436015

申请日：2006-05-17

Applicant: Stephen Bonner ,  Dean Homan ,  Gerald Minerbo ,  Richard Rosthal ,  Kuo-Chiang Chen

Inventor： Stephen Bonner ,  Dean Homan ,  Gerald Minerbo ,  Richard Rosthal ,  Kuo-Chiang Chen

IPC: G08B25/00

CPC classification number: G01V3/28

Abstract: A logging tool includes a tool body; a simple transmitter comprising a single antenna disposed on the tool body; four simple receivers, each comprising a single antenna, disposed on the tool body and spaced apart from the simple transmitter to form four arrays; and an electronic module for controlling operation of the four arrays, wherein the simple transmitter is configured to generate a magnetic field having a transverse component, wherein each of the four simple receivers is sensitive to the magnetic field generated by the simple transmitter, and at least one of the four simple receivers is sensitive to the transverse component of the magnetic field generated by the simple transmitter, and wherein the four arrays are configured to provide measurements at least three depths of investigation.

公开(公告)号：US20050083064A1

公开(公告)日：2005-04-21

申请号：US10605375

申请日：2003-09-25

Applicant: Dean Homan ,  Gerald Minerbo ,  Sofia Davydycheva

Inventor： Dean Homan ,  Gerald Minerbo ,  Sofia Davydycheva

IPC: G01V3/30 ,  G01V3/00 ,  E21B47/00

CPC classification number: G01V3/28

Abstract: A composite shell adapted to cover a source or sensor, particularly for subsurface applications. The shell provides transparency to the passage of signals to or from the source or sensor. The shell is adapted with a uniform semi-conductive surface providing a path for electric currents flowing within a subsurface borehole to short near the source or sensor.

Abstract translation: 适用于覆盖源或传感器的复合外壳，特别是用于地下应用。 外壳提供信号到源或传感器通过的透明度。 壳体适配于均匀的半导电表面，为在地下钻孔中流动的电流提供路径，以在源极或传感器附近短路。