公开(公告)号：US20150035535A1

公开(公告)日：2015-02-05

申请号：US13957365

申请日：2013-08-01

申请人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

发明人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

IPC分类号： G01V3/12

CPC分类号： G01V3/12 ,  G01V3/28

摘要： An apparatus for making resistivity measurements near a drill bit includes a tool body, a transmitter deployed on the tool body, a receiver deployed on the tool body and at an axial distance from the transmitter, and a transmitting signal coupler coupled to the transmitter antenna and the receiver. The transmitter generates electrical signals and converts the electrical signals into electromagnetic signals to be transmitted. The receiver measures the amplitudes and phases of the electromagnetic signals received from the transmitter. The transmitting signal coupler couples a portion of the electrical signals from the transmitter antenna and measures the amplitudes and phases of the coupled electrical signals. Amplitude attenuation and phase shift between the electromagnetic signals received at the receiver and the electrical signals coupled at the transmitting signal coupler are computed for calculating resistivity.

摘要翻译： 用于在钻头附近进行电阻率测量的装置包括工具主体，布置在工具主体上的发射器，部署在工具主体上并且距离发射器轴向距离的接收器以及耦合到发射机天线的发射信号耦合器 收件人。 发射机产生电信号，并将电信号转换为要传输的电磁信号。 接收机测量从发射机接收的电磁信号的幅度和相位。 发射信号耦合器耦合来自发射机天线的电信号的一部分，并测量耦合的电信号的幅度和相位。 计算在接收机处接收的电磁信号与耦合在发射信号耦合器处的电信号之间的振幅衰减和相移，用于计算电阻率。

公开(公告)号：US20150028874A1

公开(公告)日：2015-01-29

申请号：US13949140

申请日：2013-07-23

申请人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

发明人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

IPC分类号： E21B49/00 ,  G01V3/20 ,  G01V3/34

CPC分类号： G01V3/20

摘要： An apparatus for making formation resistivity measurements near a drill bit includes a tool body, a toroidal antenna deployed on the tool body near the drill bit, a coupler coupled to the toroidal antenna, a transmitter circuit coupled with the toroidal antenna via the coupler to provide voltage signals to energize the toroidal antenna, a receiver circuit coupled with the toroidal antenna via the coupler to couple electrical current signals flowing in the toroidal antenna to the receiver circuit, and a controller and processor module coupled to the transmitter circuit and the receiver circuit to control the measurement operation and calculate formation resistivity. Formation resistivity is computed based on the voltage signals to energize the toroidal antenna and the measured electrical current signals flowing in the toroidal antenna. A corresponding method for making formation resistivity measurements near a drill bit is also provided.

摘要翻译： 用于在钻头附近进行地层电阻率测量的装置包括工具主体，在钻头附近部署在工具主体上的环形天线，耦合到环形天线的耦合器，经由耦合器与环形天线耦合的发射器电路，以提供 电压信号以激励环形天线，接收器电路经由耦合器与环形天线耦合以将在环形天线中流动的电流信号耦合到接收器电路，以及耦合到发射器电路和接收器电路的控制器和处理器模块 控制测量操作并计算地层电阻率。 基于电压信号计算形成电阻率，以激励环形天线和测量的在环形天线中流动的电流信号。 还提供了用于在钻头附近进行地层电阻率测量的相应方法。

公开(公告)号：US20140345944A1

公开(公告)日：2014-11-27

申请号：US14280195

申请日：2014-05-16

申请人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

发明人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

IPC分类号： E21B7/06 ,  E21B7/04

CPC分类号： E21B7/061 ,  E21B7/04 ,  E21B7/067 ,  E21B7/068 ,  E21B17/028 ,  E21B47/024

摘要： A rotary steerable drilling tool with an electromagnetic steering system can include a drill collar, a bit shaft, an orientation control module, a mud tube, a mud tube coupler, a universal joint, a mud sealing device, and a drill bit. The bit shaft can be mechanically coupled to the drill collar through the universal joint and the orientation control module and rotate about the universal joint. The orientation and the inclination angle of the bit shaft against the drill collar can be controlled by the orientation control module with the electromagnetic steering system. The orientation control module can include a guide track mounted on the inside wall of the drill collar, arrays of electromagnets mounted on the guide track, a positioning frame, a permanent magnet mounted on the positioning frame, a coupling tube, and at least two bearing wheels. A corresponding electromagnetic steering method is also provided.

摘要翻译： 具有电磁转向系统的旋转可转向钻具可以包括钻铤，钻头轴，定向控制模块，泥浆管，泥浆管联接器，万向接头，泥浆密封装置和钻头。 钻头轴可以通过万向接头和定向控制模块机械联接到钻铤，并围绕万向接头旋转。 钻头轴相对于钻铤的方向和倾斜角度可以由具有电磁转向系统的定向控制模块来控制。 定向控制模块可以包括安装在钻铤的内壁上的导轨，安装在导轨上的电磁体阵列，定位框架，安装在定位框架上的永磁体，联接管和至少两个轴承 车轮。 还提供了相应的电磁转向方法。

公开(公告)号：US20160356088A1

公开(公告)日：2016-12-08

申请号：US15243251

申请日：2016-08-22

申请人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

发明人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

IPC分类号： E21B7/06 ,  E21B47/024 ,  E21B17/02

CPC分类号： E21B7/061 ,  E21B7/04 ,  E21B7/062 ,  E21B7/067 ,  E21B7/068 ,  E21B17/028 ,  E21B47/024

摘要： A rotary steerable drilling tool with an electromagnetic steering system can include a drill collar, a bit shaft, an orientation control module, a mud tube, a mud tube coupler, a universal joint, a mud sealing device, and a drill bit. The bit shaft can be mechanically coupled to the drill collar through the universal joint and the orientation control module and rotate about the universal joint. The orientation and the inclination angle of the bit shaft against the drill collar can be controlled by the orientation control module with the electromagnetic steering system. The orientation control module can include a guide track mounted on the inside wall of the drill collar, arrays of electromagnets mounted on the guide track, a positioning frame, a permanent magnet mounted on the positioning frame, a coupling tube, and at least two bearing wheels. A corresponding electromagnetic steering method is also provided.

摘要翻译： 具有电磁转向系统的旋转可转向钻具可以包括钻铤，钻头轴，定向控制模块，泥浆管，泥浆管联接器，万向接头，泥浆密封装置和钻头。 钻头轴可以通过万向接头和定向控制模块机械联接到钻铤，并围绕万向接头旋转。 钻头轴相对于钻铤的方向和倾斜角度可以由具有电磁转向系统的定向控制模块来控制。 定向控制模块可以包括安装在钻铤的内壁上的导轨，安装在导轨上的电磁体阵列，定位框架，安装在定位框架上的永磁体，联接管和至少两个轴承 车轮。 还提供了相应的电磁转向方法。

公开(公告)号：US09447641B2

公开(公告)日：2016-09-20

申请号：US14280195

申请日：2014-05-16

申请人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

发明人： Naizhen Liu ,  Qihui Zhao ,  Yuzhou Lu ,  Yonghe Li ,  Rui Bai ,  Jing Li ,  Ce Liu

IPC分类号： E21B7/06 ,  E21B7/04 ,  E21B17/02 ,  E21B47/024

CPC分类号： E21B7/061 ,  E21B7/04 ,  E21B7/067 ,  E21B7/068 ,  E21B17/028 ,  E21B47/024

摘要： A rotary steerable drilling tool with an electromagnetic steering system can include a drill collar, a bit shaft, an orientation control module, a mud tube, a mud tube coupler, a universal joint, a mud sealing device, and a drill bit. The bit shaft can be mechanically coupled to the drill collar through the universal joint and the orientation control module and rotate about the universal joint. The orientation and the inclination angle of the bit shaft against the drill collar can be controlled by the orientation control module with the electromagnetic steering system. The orientation control module can include a guide track mounted on the inside wall of the drill collar, arrays of electromagnets mounted on the guide track, a positioning frame, a permanent magnet mounted on the positioning frame, a coupling tube, and at least two bearing wheels. A corresponding electromagnetic steering method is also provided.

摘要翻译： 具有电磁转向系统的旋转可转向钻具可以包括钻铤，钻头轴，定向控制模块，泥浆管，泥浆管联接器，万向接头，泥浆密封装置和钻头。 钻头轴可以通过万向接头和定向控制模块机械联接到钻铤，并围绕万向接头旋转。 钻头轴相对于钻铤的方向和倾斜角度可以由具有电磁转向系统的定向控制模块来控制。 定向控制模块可以包括安装在钻铤的内壁上的导轨，安装在导轨上的电磁体阵列，定位框架，安装在定位框架上的永磁体，联接管和至少两个轴承 车轮。 还提供了相应的电磁转向方法。

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：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：US09341734B2

公开(公告)日：2016-05-17

申请号：US13786302

申请日：2013-03-05

申请人： Ce Liu ,  Jing Li

发明人： Ce Liu ,  Jing Li

IPC分类号： G06F11/00 ,  G01V3/30 ,  E21B47/022

CPC分类号： G01V3/30 ,  E21B47/02216

摘要： A method for performing detection of a bed boundary can include deploying a tool body with a longitudinal axis in a borehole, modulating the magnetic moments of electromagnetic signals to be transmitted by the first transmitter and the second transmitter, firing the first transmitter and the second transmitter substantially simultaneously, utilizing the receiver to receive and measure the modulated electromagnetic signals from the first transmitter and the second transmitter, and computing the orientation and location of the bed boundary based on the amplitudes and phases of the electromagnetic signals received and measured at the receiver. The tool body can be deployed with a first transmitter, a second transmitter, and a receiver, all of which are oriented in different directions. The vector of the total magnetic moment of the modulated electromagnetic signals can electrically rotate during firing. A corresponding apparatus for detection of a bed boundary is also provided.

摘要翻译： 用于执行床边界检测的方法可以包括在钻孔中布置具有纵向轴线的工具主体，调制由第一发射器和第二发射器传输的电磁信号的磁矩，点火第一发射器和第二发射器 基本上同时利用接收机接收并测量来自第一发射机和第二发射机的调制电磁信号，并且基于在接收机处接收和测量的电磁信号的幅度和相位来计算床边界的取向和位置。 工具主体可以部署有第一发射器，第二发射器和接收器，所有这些都沿不同的方向定向。 调制电磁信号的总磁矩矢量可以在点火过程中电旋转。 还提供了用于检测床边界的相应装置。

公开(公告)号：US20140253131A1

公开(公告)日：2014-09-11

申请号：US13786318

申请日：2013-03-05

申请人： Ce Liu ,  Jing Li

发明人： Ce Liu ,  Jing Li

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 with a longitudinal axis and an outer surface, multiple slots formed on the outer surface of the resistivity tool and oriented substantially parallel to the longitude axis of the resistivity tool, and multiple wires posited in the slots and electrically connecting end walls of the slots to form magnetic dipole antennas. The mantic dipole antennas form at least one transmitter-receiver antenna group to perform transmission and reception of electromagnetic signals. A corresponding method for making directional resistivity measurements is also provided.

摘要翻译： 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，形成在电阻率工具的外表面上并且基本上平行于电阻率工具的经度轴定向的多个槽，以及多个 电线放置在槽中并电连接槽的端壁以形成磁偶极子天线。 语义偶极天线形成至少一个发射机 - 接收机天线组，以执行电磁信号的发射和接收。 还提供了用于进行方向电阻率测量的相应方法。