公开(公告)号：US20100154531A1

公开(公告)日：2010-06-24

申请号：US12339229

申请日：2008-12-19

申请人： Wei Han ,  Tsili Wang

发明人： Wei Han ,  Tsili Wang

IPC分类号： E21B44/00

CPC分类号： E21B47/082

摘要： A downhole tool includes circumferentially spaced and/or angled transducer elements. In one embodiment a standoff sensor has at least three piezoelectric transducer elements, at least a first element of which is configured to both transmit and receive ultrasonic energy. At least second and third of the elements are configured to receive ultrasonic energy transmitted by the first element in pitch catch mode. An electronic controller is configured to calculate a standoff distance from the ultrasonic waveforms received at the first, the second, and the third piezoelectric transducer elements. The controller may further be configured to estimate the eccentricity of a measurement tool in the borehole. Exemplary embodiments of the invention may improve borehole coverage and data quality and reliability in LWD caliper logging. In particular, the invention may advantageously reduce or even eliminate blind spots when logging eccentric bore holes.

摘要翻译： 井下工具包括周向间隔开和/或成角度的换能器元件。 在一个实施例中，间隔传感器具有至少三个压电换能器元件，其至少第一元件被配置为发送和接收超声波能量。 至少第二和第三元件构造成在俯仰模式下接收由第一元件传递的超声波能量。 电子控制器被配置为计算从在第一，第二和第三压电换能器元件处接收的超声波波形的间隔距离。 控制器还可以被配置为估计钻孔中的测量工具的偏心度。 本发明的示例性实施例可以改进LWD卡尺测井中的井眼覆盖和数据质量和可靠性。 特别地，当记录偏心孔时，本发明可有利地减少甚至消除盲点。

公开(公告)号：US07663372B2

公开(公告)日：2010-02-16

申请号：US11858717

申请日：2007-09-20

申请人： Jack Signorelli ,  Tsili Wang

发明人： Jack Signorelli ,  Tsili Wang

IPC分类号： G01V3/10

CPC分类号： H01Q1/04 ,  G01V3/28 ,  H01Q7/06 ,  H01Q25/00

摘要： A resistivity tool for use in a wellbore is provided. The resistivity tool, in one embodiment, may include a longitudinal tool member, a first set of slots at a selected location in the longitudinal tool member and a conductor associated with the first set of slots to form a first antenna having a first orientation, and a second set of slots substantially at the selected location of the longitudinal tool member and a second conductor associated with the second set of slots to form a second antenna having a second orientation, thereby forming co-located antennas having different orientations.

摘要翻译： 提供了一种用于井眼的电阻率工具。 在一个实施例中，电阻率工具可以包括纵向工具构件，在纵向工具构件中的选定位置处的第一组狭槽和与第一组狭槽相关联的导体，以形成具有第一取向的第一天线，以及 基本上位于所述纵向工具构件的选定位置处的第二组槽和与所述第二组槽相关联的第二导体，以形成具有第二取向的第二天线，从而形成具有不同取向的共定位天线。

公开(公告)号：US20090224766A1

公开(公告)日：2009-09-10

申请号：US12202687

申请日：2008-09-02

申请人： Tsili Wang ,  Stanislav W. Forgang

发明人： Tsili Wang ,  Stanislav W. Forgang

IPC分类号： G01V3/18 ,  G01R35/00

CPC分类号： G01V3/24

摘要： A method for correcting data from a sensor electrode in a sensor includes determining a potential difference (V) between the sensor electrode and another sensor electrode; from the potential difference (V), determining a by-pass current (Ic) between the sensor electrode and the another sensor electrode; and from the by-pass current (Ic) and a measured current (I) from the sensor electrode, determining a corrected current (J) for the sensor electrode; wherein determining a potential (V1) for the sensor electrode comprises multiplying an intrinsic impedance (Zi1) by the measured current (I). A computer program product and other embodiments are provided.

摘要翻译： 一种用于从传感器电极校正数据的方法，包括确定传感器电极和另一传感器电极之间的电位差（V）; 从所述电位差（V）中确定所述传感器电极和所述另一传感器电极之间的旁路电流（Ic）; 并根据传感器电极的旁通电流（Ic）和测量电流（I）确定传感器电极的校正电流（J）; 其中确定传感器电极的电位（V1）包括将本征阻抗（Zi1）乘以测量的电流（I）。 提供了计算机程序产品和其他实施例。

公开(公告)号：US20090000859A1

公开(公告)日：2009-01-01

申请号：US11770377

申请日：2007-06-28

申请人： Tsili Wang ,  Xiao Ming Tang

发明人： Tsili Wang ,  Xiao Ming Tang

IPC分类号： G01V1/44

CPC分类号： G01V1/46

摘要： A downhole acoustic logging tool uses a phased-array of transmitters and/or receivers to improve the signal level of compressional waves generated by the transmitters and propagating in the formation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

摘要翻译： 井下声波测井工具使用发射器和/或接收器的相控阵来改善发射器产生的压缩波的信号水平并在地层中传播。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

公开(公告)号：US07414407B2

公开(公告)日：2008-08-19

申请号：US11398518

申请日：2006-04-05

申请人： Tsili Wang ,  Leonty Tabarovsky ,  Boris Tchakarov ,  John Signorelli ,  Sheng Fang

发明人： Tsili Wang ,  Leonty Tabarovsky ,  Boris Tchakarov ,  John Signorelli ,  Sheng Fang

IPC分类号： G01V3/08 ,  G01V3/10

CPC分类号： G01V3/28

摘要： A resistivity tool has a body with at lest one pair of grooves on its exterior oriented orthogonal to the tool axis. A coil antenna is oriented orthogonal to the grooves in a hole intersecting the grooves and oriented orthogonal to the tool axis. The antenna and an antenna core define a plurality of small antenna loops.

摘要翻译： 电阻率工具具有主体，其外部至少有一对凹槽正交于工具轴线。 线圈天线​​在与沟槽相交的孔中垂直于沟槽定向并且与工具轴线垂直定向。 天线和天线芯限定多个小天线环。

公开(公告)号：US20080172198A1

公开(公告)日：2008-07-17

申请号：US11653542

申请日：2007-01-16

申请人： Tsili Wang ,  Stanislav W. Forgang

发明人： Tsili Wang ,  Stanislav W. Forgang

IPC分类号： G01R35/00

CPC分类号： G01V3/24

摘要： A method for correcting data from at least one sensor electrode in a sensor includes determining a potential difference (V) between two electrodes; from the potential difference (V), determining a by-pass current (Ic) for the at least one sensor electrode; and from the by-pass current (Ic) and a measured current (I), determining a corrected current (J) for the at least one sensor electrode. A computer program product and other embodiments are provided.

公开(公告)号：US20070267192A1

公开(公告)日：2007-11-22

申请号：US11740376

申请日：2007-04-26

申请人： Tsili Wang ,  Alexandre Bespalov ,  Bill Corley ,  Daniel Georgi ,  Michael Rabinovich

发明人： Tsili Wang ,  Alexandre Bespalov ,  Bill Corley ,  Daniel Georgi ,  Michael Rabinovich

IPC分类号： E21B47/00

CPC分类号： G01V3/28 ,  E21B47/026

摘要： Multicomponent induction measurements may underestimate the anisotropy in formations where the bedding changes with distance from the borehole. The measurements may still be used to determine horizontal and vertical resistivity, and to identify complicated bedding structure such as that associated with channel sands and turbidite deposits. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)

摘要翻译： 多组分感应测量可能会低估地层的各向异性，其中床垫随距离井眼的距离变化。 测量结果仍然可用于确定水平和垂直电阻率，并且确定复杂的层状结构，例如与通道砂和浊度沉积物相关的结构。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）

公开(公告)号：US20070257678A1

公开(公告)日：2007-11-08

申请号：US11416590

申请日：2006-05-03

申请人： Tsili Wang

发明人： Tsili Wang

IPC分类号： G01V3/00

CPC分类号： G01V3/20

摘要： An unfocused resistivity imaging device horizontal and vertical currents conveyed into the borehole. Pad mounted electrodes are used to make voltage measurements in orthogonal directions. The voltage measurements are then rotated to give principal resistivity measurements in an anisotropic formation with dipping beds.

摘要翻译： 未聚焦的电阻率成像装置将水平和垂直电流输送到钻孔中。 焊盘安装电极用于在正交方向进行电压测量。 然后旋转电压测量值以在具有浸渍床的各向异性形成中进行主要电阻率测量。

公开(公告)号：US20070024286A1

公开(公告)日：2007-02-01

申请号：US11490920

申请日：2006-07-21

申请人： Tsili Wang

发明人： Tsili Wang

IPC分类号： G01V3/00

CPC分类号： G01V3/28

摘要： A logging tool having an axial transmitter antenna and a transverse receiver antenna is provided with a bucking coil that compensates for the environmental effects including tool-bending and eccentricity.

摘要翻译： 具有轴向发射器天线和横向接收器天线的测井工具设置有抵抗线圈，其补偿包括工具弯曲和偏心的环境影响。

公开(公告)号：US20060161350A1

公开(公告)日：2006-07-20

申请号：US11321497

申请日：2005-12-29

申请人： Tsili Wang ,  Daniel Georgi

发明人： Tsili Wang ,  Daniel Georgi

IPC分类号： G01V3/18

CPC分类号： G01V3/28

摘要： Multicomponent measurements made in a cross-bedded earth formation are processed to give one or more equivalent TI models. Resistivity information about the cross-bedding is obtained from one of the TI models and a measured cross-bedding angle. Resistivity information about the cross-bedding may also be obtained using a combination of two or more of the equivalent TI models.

摘要翻译： 在跨层地层中进行的多组分测量被处理以给出一个或多个等效的TI模型。 关于交叉床垫的电阻率信息是从TI型号之一和测量的交叉层叠角度获得的。 也可以使用两个或更多个等效TI模型的组合来获得关于交叉层叠物的电阻率信息。