公开(公告)号：US09606257B2

公开(公告)日：2017-03-28

申请号：US13217983

申请日：2011-08-25

申请人： Peter T. Wu ,  Dong Weixin ,  Thomas D. Barber ,  Dean Homan

发明人： Peter T. Wu ,  Dong Weixin ,  Thomas D. Barber ,  Dean Homan

IPC分类号： G01V1/40 ,  G01V3/28

CPC分类号： G01V3/28 ,  G01V3/38

摘要： A method for determining existence of a fracture in a formation surrounding a wellbore drilled through subsurface rock formations includes calculating vertical resistivity, horizontal resistivity, apparent formation dip, apparent formation azimuth and axial resistivity for a plurality of longitudinal instrument spacings using measurements from a triaxial induction well logging instrument disposed in the formation. A spread in the axial resistivity values is determined and the axial resistivity spread threshold therefrom. Fracture indicator values and fracture orientation values are calculated from transverse components of the triaxial induction measurements. Presence of a fracture is indicated when at least one of the fracture indicator value exceeds a selected threshold, the axial resistivity spread exceeds the spread threshold and when the apparent formation dip exceeds a selected threshold.

公开(公告)号：US08441261B2

公开(公告)日：2013-05-14

申请号：US12817060

申请日：2010-06-16

申请人： Dean Homan ,  Wich Wichers ,  Hanming Wang ,  Robert Leveridge

发明人： Dean Homan ,  Wich Wichers ,  Hanming Wang ,  Robert Leveridge

IPC分类号： G01V3/00 ,  G01V1/40

CPC分类号： G01V3/28

摘要： A method for determining orientation of an electrically conductive formation proximate an electrically substantially non-conductive formation includes measuring multiaxial electromagnetic induction response within the substantially non-conductive formation using an instrument disposed in a wellbore drilled through the formations. A difference from zero conductivity is determined for each component measurement of the multiaxial electromagnetic induction response. The differences are used to correct the measured response of each component measurement in the electrically conductive response. The corrected component measurements are used to determine the orientation of the conductive formation.

摘要翻译： 用于确定接近电气基本不导电地层的导电地层的取向的方法包括使用设置在穿过地层钻井的井筒中的仪器来测量在基本不导电地层内的多轴电磁感应响应。 对于多轴电磁感应响应的每个分量测量，确定零电导率的差异。 这些差异用于校正导电响应中每个部件测量的测量响应。 使用校正的分量测量来确定导电层的取向。

公开(公告)号：US07825664B2

公开(公告)日：2010-11-02

申请号：US11612881

申请日：2006-12-19

申请人： Dean Homan ,  Edward Nichols ,  Michael Wilt ,  Jean Seydoux

发明人： Dean Homan ,  Edward Nichols ,  Michael Wilt ,  Jean Seydoux

IPC分类号： G01V3/18 ,  G01V3/30

CPC分类号： G01V3/28

摘要： A wireline tool string used in a wellbore to determine formation properties is disclosed which comprises one or more transmitter tools disposed within the tool string, each transmitter tool having three linearly independent coils; a receiver tool disposed within the tool string, wherein the receiver tool has three linearly independent coils; and a tool string component disposed between the one or mole transmitter tools and the receiver tool; wherein the one or more transmitter tools are selectably spatially separated from the receiver tool along the tool string to provide a desired depth of investigation and measurements made using the one or more transmitter tools and receiver tool are used to determine formation properties.

摘要翻译： 公开了一种在井眼中用于确定地层特性的电缆工具串，其包括设置在工具串内的一个或多个发射器工具，每个发射器工具具有三个线性独立的线圈; 设置在所述工具串内的接收器工具，其中所述接收器工具具有三个线性独立的线圈; 以及设置在所述一个或多个发射器工具和所述接收器工具之间的工具串组件; 其中所述一个或多个发射器工具沿着所述工具串可选地在空间上与所述接收器工具分离以提供期望的调查深度，并且使用所述一个或多个发射器工具和接收器工具进行的测量被用于确定地层性质。

公开(公告)号：US20100161226A1

公开(公告)日：2010-06-24

申请号：US12340278

申请日：2008-12-19

申请人： Dean Homan

发明人： Dean Homan

IPC分类号： G01V7/00 ,  G01V5/04

CPC分类号： G01V7/00

摘要： A technique facilitates the collection of improved gravitational acceleration measurements and enables use of those measurements in analyzing environmental characteristics of a subterranean region. In one embodiment, a downhole tool is constructed with a gravimeter having a quantum source and an associated detector. The quantum source and detector use a velocity of the quantum source for determining gravitational acceleration measurements that can be employed in evaluating subterranean characteristics.

摘要翻译： 一种技术有助于收集改进的重力加速度测量，并且能够使用这些测量来分析地下区域的环境特性。 在一个实施例中，井下工具由具有量子源和相关联的检测器的重力计构成。 量子源和检测器使用量子源的速度来确定可用于评估地下特征的重力加速度测量。

公开(公告)号：US20100082255A1

公开(公告)日：2010-04-01

申请号：US12241141

申请日：2008-09-30

申请人： Sofia Davydycheva ,  Dean Homan ,  Dzevat Omeragic

发明人： Sofia Davydycheva ,  Dean Homan ,  Dzevat Omeragic

IPC分类号： G01V3/38

CPC分类号： G01V3/28

摘要： A method for determining electromagnetic induction properties of subsurface rock formations includes determining an eccentering angle of a well logging instrument disposed in a wellbore. The instrument includes at least one triaxial induction transmitter and at least one triaxial induction receiver. The eccentering angle is determined from symmetric cross component measurement differences. The triaxial induction measurements made from the at least one receiver are rotated to an apparent eccentering angle of zero. At least one electromagnetic induction property is determined from the rotated triaxial induction measurements.

摘要翻译： 用于确定地下岩层的电磁感应特性的方法包括确定设置在井眼中的测井仪器的偏心角度。 仪器包括至少一个三轴感应发射器和至少一个三轴感应接收器。 偏心角由对称交叉分量测量差异确定。 由至少一个接收器进行的三轴感应测量旋转到零的中心角。 从旋转的三轴感应测量确定至少一个电磁感应特性。

公开(公告)号：US09442214B2

公开(公告)日：2016-09-13

申请号：US12340278

申请日：2008-12-19

申请人： Dean Homan

发明人： Dean Homan

IPC分类号： G01V7/00

CPC分类号： G01V7/00

摘要： A technique facilitates the collection of improved gravitational acceleration measurements and enables use of those measurements in analyzing environmental characteristics of a subterranean region. In one embodiment, a downhole tool is constructed with a gravimeter having a quantum source and an associated detector. The quantum source and detector use a velocity of the quantum source for determining gravitational acceleration measurements that can be employed in evaluating subterranean characteristics.

摘要翻译： 一种技术有助于收集改进的重力加速度测量，并且能够使用这些测量来分析地下区域的环境特性。 在一个实施例中，井下工具由具有量子源和相关联的检测器的重力计构成。 量子源和检测器使用量子源的速度来确定可用于评估地下特征的重力加速度测量。

公开(公告)号：US20120065889A1

公开(公告)日：2012-03-15

申请号：US13217983

申请日：2011-08-25

申请人： Peter T. Wu ,  Dong Weixin ,  Thomas D. Barber ,  Dean Homan

发明人： Peter T. Wu ,  Dong Weixin ,  Thomas D. Barber ,  Dean Homan

IPC分类号： G06F19/00

CPC分类号： G01V3/28 ,  G01V3/38

摘要： A method for determining existence of a fracture in a formation surrounding a wellbore drilled through subsurface rock formations includes calculating vertical resistivity, horizontal resistivity, apparent formation dip, apparent formation azimuth and axial resistivity for a plurality of longitudinal instrument spacings using measurements from a triaxial induction well logging instrument disposed in the formation. A spread in the axial resistivity values is determined and the axial resistivity spread threshold therefrom. Fracture indicator values and fracture orientation values are calculated from transverse components of the triaxial induction measurements. Presence of a fracture is indicated when at least one of the fracture indicator value exceeds a selected threshold, the axial resistivity spread exceeds the spread threshold and when the apparent formation dip exceeds a selected threshold.

摘要翻译： 用于确定在通过地下岩层钻探的井筒周围的地层中的裂缝的存在的方法包括使用来自三轴感应的测量来计算多个纵向仪器间距的垂直电阻率，水平电阻率，表观地层倾角，表观形成方位角和轴向电阻率 测井仪器配置在地层中。 确定轴向电阻率值的扩展，其轴向电阻率扩展阈值。 断裂指标值和断裂取向值由三轴感应测量的横向分量计算。 当断裂指标值中的至少一个超过所选择的阈值时，指示断裂的存在，轴向电阻率扩展超过扩展阈值，并且当表观地层倾角超过选定的阈值时。

公开(公告)号：US20060202806A1

公开(公告)日：2006-09-14

申请号：US11436015

申请日：2006-05-17

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

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

IPC分类号： G08B25/00

CPC分类号： G01V3/28

摘要： 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

申请人： Dean Homan ,  Gerald Minerbo ,  Sofia Davydycheva

发明人： Dean Homan ,  Gerald Minerbo ,  Sofia Davydycheva

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

CPC分类号： G01V3/28

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20050056421A1

公开(公告)日：2005-03-17

申请号：US10605200

申请日：2003-09-15

申请人： Dean Homan ,  Kuo-Chiang Chen

发明人： Dean Homan ,  Kuo-Chiang Chen

IPC分类号： G01V11/00 ,  E21B47/00

CPC分类号： G01V11/005

摘要： A well logging tool includes a housing; at least one piston moveably disposed on the housing; at least one sensor disposed on the at least one piston; a pressure compensation system coupled to the at least one piston such that a pressure at a back side of the at least one piston is substantially identical to a pressure outside the well logging tool; and a piston deployment mechanism for deploying the at least one piston. A method for well logging using a logging tool having at least one piston and a pressure compensating system, wherein the at least one piston includes at least one sensor, the method includes disposing the well logging tool in a borehole; deploying the at least one piston to establish a contact between the at least one piston and a wall of the borehole; and measuring a formation property using the at least one sensor.

摘要翻译： 测井工具包括一个壳体; 可移动地设置在所述壳体上的至少一个活塞; 设置在所述至少一个活塞上的至少一个传感器; 压力补偿系统，其耦合到所述至少一个活塞，使得所述至少一个活塞的后侧处的压力基本上与所述测井工具外部的压力相同; 以及用于展开所述至少一个活塞的活塞展开机构。 一种使用具有至少一个活塞和压力补偿系统的测井工具进行测井的方法，其中所述至少一个活塞包括至少一个传感器，所述方法包括将测井仪器设置在钻孔中; 展开所述至少一个活塞以在所述至少一个活塞和所述钻孔的壁之间建立接触; 以及使用所述至少一个传感器测量形成特性。