公开(公告)号：US20090243619A1

公开(公告)日：2009-10-01

申请号：US12055517

申请日：2008-03-26

申请人： Alexandre N. Bespalov ,  David R. Beard ,  Randy Gold ,  Gregory B. Itskovich ,  Tsili Wang

发明人： Alexandre N. Bespalov ,  David R. Beard ,  Randy Gold ,  Gregory B. Itskovich ,  Tsili Wang

IPC分类号： G01V3/24

CPC分类号： G01V3/24

摘要： An apparatus for imaging a subsurface material traversed by a borehole, the apparatus including an imaging pad deployed by a logging instrument, the pad including a plurality of measuring sets, each measuring set including a first current injector electrode, a second current injector electrode, a pair of sensor electrodes disposed between the first current injector electrode and the second current injector electrode, and an output for coupling to an electronics unit adapted for producing the imaging of the subsurface material.

摘要翻译： 一种用于对由钻孔穿过的地下材料成像的装置，所述装置包括由测井仪器部署的成像垫，所述测量仪器包括多个测量组，每个测量组包括第一电流注入器电极，第二电流注入器电极， 设置在第一电流注入器电极和第二电流注入器电极之间的一对传感器电极，以及用于耦合到适于产生地下材料的成像的电子单元的输出。

公开(公告)号：US08030938B2

公开(公告)日：2011-10-04

申请号：US12055517

申请日：2008-03-26

申请人： Alexandre N. Bespalov ,  David R. Beard ,  Randy Gold ,  Gregory B. Itskovich ,  Tsili Wang

发明人： Alexandre N. Bespalov ,  David R. Beard ,  Randy Gold ,  Gregory B. Itskovich ,  Tsili Wang

IPC分类号： G01V3/18

CPC分类号： G01V3/24

摘要： An apparatus for imaging a subsurface material traversed by a borehole, the apparatus including an imaging pad deployed by a logging instrument, the pad including a plurality of measuring sets, each measuring set including a first current injector electrode, a second current injector electrode, a pair of sensor electrodes disposed between the first current injector electrode and the second current injector electrode, and an output for coupling to an electronics unit adapted for producing the imaging of the subsurface material.

摘要翻译： 一种用于对由钻孔穿过的地下材料成像的装置，所述装置包括由测井仪器部署的成像垫，所述测量仪器包括多个测量组，每个测量组包括第一电流注入器电极，第二电流注入器电极， 设置在第一电流注入器电极和第二电流注入器电极之间的一对传感器电极，以及用于耦合到适于产生地下材料的成像的电子单元的输出。

公开(公告)号：US08862406B2

公开(公告)日：2014-10-14

申请号：US13346263

申请日：2012-01-09

申请人： Gregory B. Itskovich ,  David R. Beard ,  Fei Le

发明人： Gregory B. Itskovich ,  David R. Beard ,  Fei Le

IPC分类号： G01V1/40 ,  G01V3/20 ,  G01V5/04

CPC分类号： G01V3/20

摘要： This disclosure relates to apparatuses and methods for reducing current leakage between a measure electrode and a logging tool body during borehole investigations in an earth formation involving electric current and non-conductive drilling fluid. The apparatus may include one or more transmitters disposed on a pad body, configured to inject an electric current into the earth formation, and coupled to the mandrel and one or more measure electrodes. The measure electrodes may be configured to receive current from the formation and coupled to a back plate of the pad body. The apparatus may be configured to maintain a selected ratio between pad body to logging tool body impedance and transmitters to logging tool body impedance sufficient to reduce current leakage between the earth formation and the logging tool body. The transmitter/mandrel and measure electrode/back plate may be electrically isolated from one another. The method may include using the apparatus.

摘要翻译： 本公开涉及用于在包括电流和非导电钻井液的地层中的井眼研究期间减小测量电极和测井工具主体之间的电流泄漏的装置和方法。 设备可以包括设置在垫体上的一个或多个发射器，其被配置为将电流注入到地层中，并且耦合到心轴和一个或多个测量电极。 测量电极可以被配置为从地层接收电流并且耦合到衬垫本体的背板。 该装置可以被配置为保持衬垫主体与测井工具主体阻抗之间的选定比率，并且将发射器保持在足以减小地球形成和测井工具主体之间的电流泄漏的工具体阻抗。 发射器/心轴和测量电极/背板可以彼此电隔离。 该方法可以包括使用该装置。

公开(公告)号：US20130013210A1

公开(公告)日：2013-01-10

申请号：US13346263

申请日：2012-01-09

申请人： Gregory B. Itskovich ,  David R. Beard ,  Fei Le

发明人： Gregory B. Itskovich ,  David R. Beard ,  Fei Le

IPC分类号： G01V3/38

CPC分类号： G01V3/20

摘要： This disclosure relates to apparatuses and methods for reducing current leakage between a measure electrode and a logging tool body during borehole investigations in an earth formation involving electric current and non-conductive drilling fluid. The apparatus may include one or more transmitters disposed on a pad body, configured to inject an electric current into the earth formation, and coupled to the mandrel and one or more measure electrodes. The measure electrodes may be configured to receive current from the formation and coupled to a back plate of the pad body. The apparatus may be configured to maintain a selected ratio between pad body to logging tool body impedance and transmitters to logging tool body impedance sufficient to reduce current leakage between the earth formation and the logging tool body. The transmitter/mandrel and measure electrode/back plate may be electrically isolated from one another. The method may include using the apparatus.

摘要翻译： 本公开涉及用于在包括电流和非导电钻井液的地层中的井眼研究期间减小测量电极和测井工具主体之间的电流泄漏的装置和方法。 设备可以包括设置在垫体上的一个或多个发射器，其被配置为将电流注入到地层中，并且耦合到心轴和一个或多个测量电极。 测量电极可以被配置为从地层接收电流并且耦合到衬垫本体的背板。 该装置可以被配置为保持衬垫主体与测井工具主体阻抗之间的选定比率，并且将发射器保持在足以减小地球形成和测井工具主体之间的电流泄漏的工具体阻抗。 发射器/心轴和测量电极/背板可以彼此电隔离。 该方法可以包括使用该装置。

公开(公告)号：US5862513A

公开(公告)日：1999-01-19

申请号：US740792

申请日：1996-11-01

申请人： Alberto G. Mezzatesta ,  Michael A. Jervis ,  David R. Beard ,  Kurt M. Strack ,  Leonty A. Tabarovsky

发明人： Alberto G. Mezzatesta ,  Michael A. Jervis ,  David R. Beard ,  Kurt M. Strack ,  Leonty A. Tabarovsky

IPC分类号： E21B41/00 ,  G01V1/28 ,  G01V1/50 ,  G01V3/38 ,  G06F19/00

CPC分类号： G01V3/38 ,  G01V1/282 ,  G01V1/50 ,  E21B2041/0028 ,  G01V2210/614

摘要： A method for producing synthetic tool responses for a well logging tool for an earth formation, the method including, in one aspect, generating wellbore logging data for a particular part of an earth formation with a wellbore logging system with a wellbore logging tool, the earth formation having at least one layer, producing an input earth model of the particular part of the earth formation based on the wellbore logging data, inputting the input earth model to a trained artificial neural network, e.g. resident in a computer, the computer with the trained artificial neural network processing the input earth model and producing synthetic tool responses for the wellbore logging tool for one point or for a plurality of points in the earth formation.

摘要翻译： 一种用于生产用于地层测井工具的合成工具响应的方法，所述方法包括在一个方面中生成具有井眼测井工具的井眼测井系统的地层的特定部分的井眼测井数据，所述地球 形成具有至少一个层，基于井筒测井数据产生地层的特定部分的输入地球模型，将输入的地球模型输入到训练的人造神经网络，例如 驻留在计算机中的计算机，具有经过训练的人造神经网络的计算机处理输入地球模型，并且为地层中的一个点或多个点产生用于井眼测井工具的合成工具响应。

公开(公告)号：US20110221442A1

公开(公告)日：2011-09-15

申请号：US13041995

申请日：2011-03-07

申请人： Hans-Martin Maurer ,  David R. Beard ,  Rashid W. Khokar

发明人： Hans-Martin Maurer ,  David R. Beard ,  Rashid W. Khokar

IPC分类号： G01V3/18

CPC分类号： G01V3/28

摘要： An apparatus and method for estimating a parameter of interest of an earth formation, particularly relating to borehole logging methods and apparatuses for estimating electrical resistivity properties using at least one transverse toroid. The apparatus may include one or more transmitters for introducing electrical current to the earth formation. The transverse toroid may detect responsive electric signals from the earth formation at one or more frequencies and provide data from one or more depths of investigation. Further multiple transverse toroids may be used for detecting electric signals from a larger azimuthal range than a single transverse toroid. The method includes steps for using the apparatus to obtain data that may be used to estimate the parameter of interest.

摘要翻译： 一种用于估计地层的关注参数的装置和方法，特别是涉及用于使用至少一个横向环形圈估计电阻率性质的钻孔测井方法和装置。 该装置可以包括用于将电流引入地层的一个或多个发射器。 横向环形线圈可以以一个或多个频率检测来自地层的响应电信号，并从一个或多个调查深度提供数据。 可以使用多个横向环形圈来检测比单个横向环形圈更大的方位范围的电信号。 该方法包括使用该装置来获得可用于估计感兴趣的参数的数据的步骤。

公开(公告)号：US20110006775A1

公开(公告)日：2011-01-13

申请号：US12832678

申请日：2010-07-08

申请人： Sheng Fang ,  David R. Beard

发明人： Sheng Fang ,  David R. Beard

IPC分类号： G01V3/18

CPC分类号： G01V3/28

摘要： In aspects, an apparatus for use in a wellbore for determining a property of an earth formation is provided. The apparatus, in one embodiment, may include a tool body including a transmitter configured to induce electromagnetic waves in an earth formation, a receiver configured to provide signals responsive to the induced electromagnetic waves, a conductive member between the transmitter and the receiver extending radially from the tool body and configured to reduce propagation of eddy currents between the transmitter and the receiver when the tool body is in a wellbore and a processor configured to process the signals provided by the receiver to determine the property of the earth formation.

摘要翻译： 在方面中，提供了一种用于确定地层的性质的井眼中的装置。 在一个实施例中，该装置可以包括工具主体，其包括被配置为在地层中诱发电磁波的发射器，被配置为提供响应于感应的电磁波的信号的接收器，发射器和接收器之间的导电部件从 所述工具主体并且被配置为当所述工具主体处于井筒中时，减少所述发射器和所述接收器之间的涡流的传播，并且所述处理器被配置为处理由所述接收器提供的信号以确定所述地层的性质。

公开(公告)号：US06897651B2

公开(公告)日：2005-05-24

申请号：US10439100

申请日：2003-05-15

申请人： Arcady Reiderman ,  David R. Beard ,  Zinovy B. Krugliak

发明人： Arcady Reiderman ,  David R. Beard ,  Zinovy B. Krugliak

IPC分类号： G01R33/44 ,  G01V3/32 ,  G01V3/00

CPC分类号： G01V3/32 ,  G01N24/081

摘要： The invention is a method of reducing the effects of non-formation signals in an NMR logging echo signal obtained within a borehole in an earth formation. The method obtains a non-formation signal by the application of at least an excitation pulse, and preferably also at least one refocusing pulse. The obtained signal is used to numerically construct a synthetic ringing signal sequence. The constructed signal can then be subtracted from an NMR echo signal to reduce the effects of ringing.

摘要翻译： 本发明是减少在地层中钻孔内获得的NMR记录回波信号中非形成信号的影响的方法。 该方法通过施加至少一个激励脉冲，并且优选地至少一个重聚焦脉冲来获得非形成信号。 获得的信号用于数字构建合成振铃信号序列。 然后可以从NMR回波信号中减去所构建的信号，以减少振铃的影响。

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。

公开(公告)号：US20070279063A1

公开(公告)日：2007-12-06

申请号：US11444640

申请日：2006-06-01

申请人： David R. Beard

发明人： David R. Beard

IPC分类号： G01V3/00

CPC分类号： G01V3/24

摘要： A resistivity imaging tool determines formation resistivity by evaluating the resonant frequency and the quality factor of a resonant circuit associated with a current electrode. A planar coil electrode may be used to provide the necessary inductance and capacitance for the resonant circuit.

摘要翻译： 电阻率成像工具通过评估与当前电极相关联的谐振电路的谐振频率和品质因子来确定地层电阻率。 可以使用平面线圈电极来为谐振电路提供必要的电感和电容。