公开(公告)号：US20080315883A1

公开(公告)日：2008-12-25

申请号：US11767359

申请日：2007-06-22

申请人： Roland E. Chemali ,  Wallace H. Meyer ,  Gulamabbas Merchant ,  Tsili Wang

发明人： Roland E. Chemali ,  Wallace H. Meyer ,  Gulamabbas Merchant ,  Tsili Wang

IPC分类号： G01V3/28

CPC分类号： G01V3/28

摘要： A phase error in measurements made by a resistivity logging tool is estimated by positioning the tool above a conducting surface. Deviation of the measured phase difference between the transmitter and the receiver from 90° gives the phase error in the electronics. 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： 通过将工具放置在导电表面上方来估计电阻率测井仪测量的相位误差。 发射器和接收器之间的测量相位差的偏差从90°给出了电子设备中的相位误差。 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：US06957708B2

公开(公告)日：2005-10-25

申请号：US10616857

申请日：2003-07-08

申请人： Roland E. Chemali ,  Martin Folberth ,  Tsili Wang ,  Rene Ritter

发明人： Roland E. Chemali ,  Martin Folberth ,  Tsili Wang ,  Rene Ritter

IPC分类号： E21B17/10 ,  E21B47/00 ,  E21B47/01 ,  G01V3/30 ,  E21B47/12

CPC分类号： E21B17/1078 ,  E21B47/0002 ,  E21B47/01 ,  G01V3/30

摘要： The invention is a method and apparatus for determining an electrical property a formation surrounding a borehole with a measuring-while-drilling device. The apparatus an antenna configuration disposed along the outer face of an extendable stabilizer joined to a rotatable drill collar. Typically, two receivers and two transmitters are spaced along the longitudinal axis of the drill collar, with the two receivers spaced symmetrically in between the two transmitters. Alternatively, receivers and transmitters can be spaced along the circumference, possibly over multiple stabilizers. Multiple assemblies can be used. Data can be obtained with the transmitter-receiver assembly held in a stationary position or rotating circumferentially. Apparatus can be operated in a “broadside” configuration, an “endfire” configuration, or a configuration in which transmitter coils and receiver coils are oriented orthogonally to each other.

公开(公告)号：US07483793B2

公开(公告)日：2009-01-27

申请号：US11489875

申请日：2006-07-20

申请人： Tsili Wang ,  Roland E. Chemali

发明人： Tsili Wang ,  Roland E. Chemali

IPC分类号： G01V1/40

CPC分类号： G01V3/28

摘要： A pseudo-image is produced by combining deep-reading azimuthally sensitive resistivity measurements with azimuthally insensitive resistivity measurements made by a multiple propagation resistivity tool. This image is useful in reservoir navigation. Features on the azimuthally sensitive measurements such as saddle-points and mid-points are diagnostic of bed geometry relative to the borehole.

摘要翻译： 通过将深读方位敏感电阻率测量与由多传播电阻率工具进行的方位不敏感电阻率测量结合来产生伪图像。 此图像在油藏导航中非常有用。 诸如鞍点和中点等方位角敏感测量的特征是相对于钻孔的床几何形状的诊断。

公开(公告)号：US07994790B2

公开(公告)日：2011-08-09

申请号：US12401440

申请日：2009-03-10

申请人： Gregory B. Itskovich ,  Roland E. Chemali ,  Tsili Wang

发明人： Gregory B. Itskovich ,  Roland E. Chemali ,  Tsili Wang

IPC分类号： G01V3/08 ,  G01V3/10

CPC分类号： G01V3/28

摘要： A transmitter on a bottomhole assembly (BHA) is used for generating a transient electromagnetic signal in an earth formation. A pair of receivers on the BHA receive signals that are indicative of formation resistivity and distances to bed boundaries. A time dependent calibration factor or a time-independent calibration factor may be used to combine the two received signals and estimate the distance to bed boundaries that are unaffected by the drill conductive body. Further improvement can be obtained by using copper shielding.

摘要翻译： 井底组件（BHA）上的发射器用于在地层中产生瞬态电磁信号。 BHA上的一对接收器接收指示地层电阻率和与床边界距离的信号。 可以使用时间相关的校准因子或时间无关的校准因子来组合两个接收的信号并且估计不受钻孔导电体影响的床边界的距离。 通过使用铜屏蔽可以进一步改善。

公开(公告)号：US20090243618A1

公开(公告)日：2009-10-01

申请号：US12402592

申请日：2009-03-12

申请人： Tsili Wang ,  Roland E. Chemali

发明人： Tsili Wang ,  Roland E. Chemali

IPC分类号： G01V3/18

CPC分类号： G01V3/28

摘要： Transient measurements made at two spaced apart receivers responsive to separate activation of two transmitters symmetrically disposed about the two receivers. The transmitters and receivers are on an instrument having a conductive body induces currents in the earth formation. The effect of the conductive body is removed by using deconvolving the signal at one receiver using the measured signal at the other receiver. The symmetric transmitter configuration also enables compensation for receiver differences.

摘要翻译： 在两个间隔开的接收器进行的瞬态测量响应于两个对称地布置在两个接收器周围的两个发射器的分离激活。 发射器和接收器在具有导电体的仪器上引起地层中的电流。 通过使用在另一个接收器处的测量信号在一个接收机处去除信号来消除导电体的影响。 对称发射机配置还可以补偿接收机的差异。

公开(公告)号：US07375530B2

公开(公告)日：2008-05-20

申请号：US11299053

申请日：2005-12-09

申请人： Roland E. Chemali ,  Paul Cairns ,  Tsili Wang ,  Wallace H. Meyer ,  Andrew G. Brooks ,  Otto N. Fanini ,  Gulamabbas Merchant

发明人： Roland E. Chemali ,  Paul Cairns ,  Tsili Wang ,  Wallace H. Meyer ,  Andrew G. Brooks ,  Otto N. Fanini ,  Gulamabbas Merchant

IPC分类号： G01V3/30

CPC分类号： G01V3/28 ,  E21B47/022

摘要： Cross-component measurements made at a plurality of toolface angles are processed to remove bias. The amplitude of the resulting sinusoid is used to estimate a distance to an interface in an earth formation.

摘要翻译： 处理在多个工具面角度进行的横向成分测量以消除偏压。 所得到的正弦曲线的振幅用于估计到地层中界面的距离。

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：US07742008B2

公开(公告)日：2010-06-22

申请号：US11877976

申请日：2007-10-24

申请人： Tsili Wang ,  Jack Signorelli

发明人： Tsili Wang ,  Jack Signorelli

IPC分类号： H01Q7/08 ,  H01Q9/16 ,  G01V3/08

CPC分类号： H01Q1/04 ,  Y10T29/49016

摘要： A multipole antenna for conducting logging-while-drilling (LWD), includes a wire for one of producing and receiving an electromagnetic field, the wire having at least one winding for providing a magnetic moment in a first portion of the antenna that is opposite to the magnetic moment of a second portion of the antenna. A method for constructing the multipole antenna is provided. A LWD tool making use of the antenna is also provided.

摘要翻译： 用于进行钻井同步的多极天线（LWD）包括用于产生和接收电磁场的导线，所述导线具有至少一个绕组，用于在天线的第一部分中提供磁矩，所述第一部分与 天线的第二部分的磁矩。 提供了一种构造多极天线的方法。 还提供了利用天线的LWD工具。

公开(公告)号：US20080074336A1

公开(公告)日：2008-03-27

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： H01Q1/04

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

摘要： The disclosure provides a resistivity tool for use in a wellbore, wherein at least two antennas are located at the same or substantially the same location of the tool. Each antenna may be configured to operate as a transmitter or receiver.

摘要翻译： 本公开提供了一种用于井筒的电阻率工具，其中至少两个天线位于工具的相同或基本相同的位置。 每个天线可以被配置为作为发射机或接收机工作。

公开(公告)号：US07471088B2

公开(公告)日：2008-12-30

申请号：US11298255

申请日：2005-12-09

申请人： Liming Yu ,  Tsili Wang ,  Jack Signorelli

发明人： Liming Yu ,  Tsili Wang ,  Jack Signorelli

IPC分类号： G01V3/18

CPC分类号： E21B47/024 ,  G01V3/28

摘要： Cross-component measurements made with a dual-transmitter configuration are processed to estimate a distance to an interface in an anisotropic earth formation. Optionally, measurements may be made with two receivers, also in the dual transmitter configuration.

摘要翻译： 处理使用双发射器配置进行的跨分量测量，以估计到各向异性地层中的界面的距离。 可选地，也可以在两个发射机配置中使用两个接收机进行测量。