公开(公告)号：US20130113490A1

公开(公告)日：2013-05-09

申请号：US13462736

申请日：2012-05-02

申请人： Zhong Wang ,  Wei Ren ,  Huaping Wang ,  Suming Wu ,  Allen Liu

发明人： Zhong Wang ,  Wei Ren ,  Huaping Wang ,  Suming Wu ,  Allen Liu

IPC分类号： G01V3/30

CPC分类号： G01V3/30

摘要： An apparatus for making directional resistivity measurements of a subterranean formation includes a resistivity tool body with a longitudinal axis and an outer surface, a first antenna with two open ends deployed below the outer surface, a second antenna deployed below the outer surface and spaced at an axial distance from the first antenna, and at least one slot formed on the outer surface. A corresponding method for making directional resistivity measurements includes rotating a resistivity tool in a borehole, utilizing a transmitter-receiver antenna group formed in the resistivity tool to process an electromagnetic wave, and computing a resistivity-related measurement from the electromagnetic wave received on the receiver antenna.

摘要翻译： 一种用于制造地层的方向电阻率测量的装置包括具有纵向轴线和外表面的电阻率工具主体，具有在外表面下方展开的两个开放端的第一天线，在外表面下方间隔开的第二天线 与第一天线的轴向距离，以及形成在外表面上的至少一个槽。 用于进行方向电阻率测量的相应方法包括使用形成在电阻率工具中的发射机 - 接收机天线组来旋转钻孔中的电阻率工具来处理电磁波，以及从接收机上接收的电磁波计算电阻率相关测量 天线。

公开(公告)号：US09581719B2

公开(公告)日：2017-02-28

申请号：US13936013

申请日：2013-07-05

申请人： Yue Liu ,  Qingjie Bai ,  Qihui Zhao ,  Yuzhou Lu ,  Tao Huang ,  Zhong Wang ,  Suming Wu ,  Ce Liu

发明人： Yue Liu ,  Qingjie Bai ,  Qihui Zhao ,  Yuzhou Lu ,  Tao Huang ,  Zhong Wang ,  Suming Wu ,  Ce Liu

IPC分类号： G01V3/24 ,  G01V3/02 ,  G01V3/20 ,  G01V3/30 ,  G01V3/10

CPC分类号： G01V3/30 ,  G01V3/101

摘要： An oil-based mud formation imaging tool for measuring electrical properties of surrounding formation includes at least one base plate, a first port and a second port deployed on the base plate, surface conductors covering both sides of the base plate, and inside conductors deployed in the first port and the second ports and with gaps from the edges of the first and second ports. The first port is fed with electromagnetic signals by a waveguide and a coupling is formed between the imaging tool and the surrounding formation accordingly. Resonance signals are induced at the second port to be used to compute corresponding formation resistivity and dielectric constant. A corresponding imaging method is also provided.

摘要翻译： 一种用于测量周围地层电性能的油基泥浆成像工具，包括至少一个基板，第一端口和第二端口，其位于基板上，覆盖基板两侧的表面导体， 第一端口和第二端口，并且与第一和第二端口的边缘具有间隙。 第一端口通过波导馈送电磁信号，并且相应地在成像工具和周围地层之间形成耦合。 谐振信号在第二端口被感应用于计算相应的地层电阻率和介电常数。 还提供了相应的成像方法。

公开(公告)号：US20140375320A1

公开(公告)日：2014-12-25

申请号：US13922090

申请日：2013-06-19

申请人： Yue Liu ,  Qihui Zhao ,  Qingjie Bai ,  Yuzhou Lu ,  Zhong Wang ,  Suming Wu ,  Ce Liu

发明人： Yue Liu ,  Qihui Zhao ,  Qingjie Bai ,  Yuzhou Lu ,  Zhong Wang ,  Suming Wu ,  Ce Liu

IPC分类号： G01V3/20 ,  G01V3/38

CPC分类号： G01V3/20 ,  G01V3/38

摘要： A correction method for resistivity measurements of formation surrounding a borehole includes deploying a logging tool in the borehole and having a standoff in between the logging tool and the wall of the borehole, measuring a total current entering into the pair of current electrodes, computing a leakage current in the sensor pad caused by an internal capacitive impedance between the pair of current electrodes and the main body of the sensor pad, computing a measuring current to enter into the formation for the resistivity measurements by subtracting the leakage current from the total current, computing an external capacitive impedance between the current electrodes and the formation, utilizing a pre-built chart to obtain a geometric factor based on the external capacitive impedance, and computing resistivity of the formation based on the geometric factor.

摘要翻译： 用于围绕钻孔的地层电阻率测量的校正方法包括在井眼中布置测井工具，并且在测井工具和钻孔壁之间具有支座，测量进入该对电流电极的总电流，计算泄漏 传感器焊盘中的电流由一对电流电极和传感器焊盘的主体之间的内部电容性阻抗引起，通过从总电流中减去漏电流来计算测量电流以进入电阻率测量的形成，计算 电流电极和地层之间的外部电容性阻抗，利用预先构建的图表来获得基于外部电容阻抗的几何因子，以及基于几何因子计算地层的电阻率。

公开(公告)号：US20150012216A1

公开(公告)日：2015-01-08

申请号：US13936013

申请日：2013-07-05

申请人： Yue Liu ,  Qingjie Bai ,  Qihui Zhao ,  Yuzhou Lu ,  Tao Huang ,  Zhong Wang ,  Suming Wu ,  Ce Liu

发明人： Yue Liu ,  Qingjie Bai ,  Qihui Zhao ,  Yuzhou Lu ,  Tao Huang ,  Zhong Wang ,  Suming Wu ,  Ce Liu

IPC分类号： G01V3/02

CPC分类号： G01V3/30 ,  G01V3/101

摘要： An oil-based mud formation imaging tool for measuring electrical properties of surrounding formation includes at least one base plate, a first port and a second port deployed on the base plate, surface conductors covering both sides of the base plate, and inside conductors deployed in the first port and the second ports and with gaps from the edges of the first and second ports. The first port is fed with electromagnetic signals by a waveguide and a coupling is formed between the imaging tool and the surrounding formation accordingly. Resonance signals are induced at the second port to be used to compute corresponding formation resistivity and dielectric constant. A corresponding imaging method is also provided.

摘要翻译： 一种用于测量周围地层电性能的油基泥浆成像工具，包括至少一个基板，第一端口和第二端口，其位于基板上，覆盖基板两侧的表面导体， 第一端口和第二端口，并且与第一和第二端口的边缘具有间隙。 第一端口通过波导馈送电磁信号，并且相应地在成像工具和周围地层之间形成耦合。 谐振信号在第二端口被感应用于计算相应的地层电阻率和介电常数。 还提供了相应的成像方法。

公开(公告)号：US20130320985A1

公开(公告)日：2013-12-05

申请号：US13489191

申请日：2012-06-05

申请人： Ce Liu ,  Zhong Wang ,  Suming Wu

发明人： Ce Liu ,  Zhong Wang ,  Suming Wu

IPC分类号： G01V3/12

CPC分类号： G01V3/12 ,  G01V3/28

摘要： An apparatus for making directional resistivity measurements of a subterranean formation includes a resistivity tool with a longitudinal axis and an outer surface, a first antenna deployed below the outer surface and having an axial mode coil for processing an axial electromagnetic wave and a transverse mode coil for processing a transverse electromagnetic wave to form a joint-coil structure, a second antenna deployed below the outer surface and spaced at an axial distance from the first antenna, at least two sets of slots with different orientations formed on the outer surface. A corresponding method for making directional resistivity measurements includes rotating a resistivity tool in a borehole, utilizing a transmitter-receiver antenna group formed in the resistivity tool to process a superimposition of the axial and transverse electromagnetic waves, and computing a resistivity-related measurement from the superimposition of the axial and transverse electromagnetic waves received on the receiver antenna.

摘要翻译： 一种用于制造地下地层的方向电阻率测量的装置包括具有纵向轴线和外表面的电阻率工具，布置在外表面下方的第一天线，并具有用于处理轴向电磁波的轴向模式线圈和用于 处理横向电磁波以形成接头线圈结构，第二天线布置在外表面之下并与第一天线成轴向间隔开，形成在外表面上的至少两组具有不同取向的槽。 用于进行方向电阻率测量的相应方法包括使用在电阻率工具中形成的发射器 - 接收器天线组来旋转井眼中的电阻率工具，以处理轴向和横向电磁波的叠加，并且从 在接收机天线上接收的轴向和横向电磁波的叠加。