公开(公告)号：EP3312382A1

公开(公告)日：2018-04-25

申请号：EP16888601.8

申请日：2016-11-12

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： ZHANG, Wenxiu ,  CHEN, Wenxuan ,  DI, Qingyun ,  LIU, Jianguang ,  SUN, Yuntao ,  YANG, Yongyou ,  ZHENG, Jian

IPC分类号： E21B47/022 ,  E21B47/024 ,  G01C21/16 ,  G01P15/18

摘要： The present invention provides a gravity acceleration measurement apparatus and extraction method in a rotating state. The apparatus comprises sensors and a measurement circuit, the sensors comprise a three-axis gravity accelerometer, a reference measurement sensor and a temperature sensor, the three-axis gravity accelerometer measures acceleration component signals in three mutually orthogonal directions, and the reference measurement sensor generates a signal that varies with rotation and is not affected by vibration or shock to serve as a reference signal; the temperature sensor measures the temperature in the apparatus and is used for compensating the temperature effect of the gravity accelerometers; and the measurement circuit acquires output signals of the sensors, respectively performs cross-correlation processing on the accelerometer components by using the reference signal to extract gravity acceleration signals so as to eliminate centrifugal acceleration, vibration, shock and other interferences generated by rotation, and the non-interference gravity acceleration signals are obtained according to the measurement method which can be used for calculating an inclination angle and a toolface angle of a drilling tool in the rotating state.

摘要翻译： 本发明提供了一种旋转状态下的重力加速度测量装置和抽取方法。 该装置包括传感器和测量电路，传感器包括三轴重力加速度计，参考测量传感器和温度传感器，三轴重力加速度计在三个相互正交的方向上测量加速度分量信号，参考测量传感器产生 一个随旋转而变化并且不受振动或冲击影响的信号作为参考信号; 温度传感器测量设备中的温度并用于补偿重力加速度计的温度效应; 测量电路获取传感器的输出信号，利用该参考信号分别对加速度计部件进行互相关处理，提取重力加速度信号，消除由于旋转而产生的离心加速度，振动，冲击等干扰， 根据可用于计算旋转状态下的钻具的倾斜角度和工具面角度的测量方法获得非干扰重力加速度信号。

公开(公告)号：EP3611332A1

公开(公告)日：2020-02-19

申请号：EP18879067.9

申请日：2018-03-02

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： LIU, Qingbo ,  DI, Qingyun ,  WANG, Tsili ,  CHEN, Wenxuan ,  DU, Jiansheng ,  YANG, Yongyou ,  HE, Xinzhen ,  LIU, Yang ,  HONG, Linfeng ,  XIE, Qijun

IPC分类号： E21B7/06

摘要： A hybrid rotary guiding device,includes:rotating shaft,the rotating shaft is used to drive the head of a drill tool to rotate,the rotating shaft includes an upper shaft portion, a lower shaft portion, and a steerable portion, a separation distance exists between the upper shaft portion and the lower shaft portion in the axial direction,the upper shaft portion and the lower shaft portion are steerably connected by the steerable portion;the upper shaft portion is installed with at least three first hydraulic mechanisms, and the lower shaft portion is installed with at least three second hydraulic mechanisms,the second hydraulic mechanism is adapted to drive a pushing member against the wall of the well to guide the head of a drill tool,the first hydraulic mechanism and the second hydraulic mechanism are configured so that the first hydraulic mechanism can drive the second hydraulic mechanism to drive the pushing member.The present invention combines the advantages of directional and push-oriented guidance,the influence of formation properties on the build-up slope is largely eliminated, a higher build rate can be provided,and the demand for energy consumption is greatly reduced.

公开(公告)号：EP3611330A1

公开(公告)日：2020-02-19

申请号：EP18880010.6

申请日：2018-03-02

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： LIU, Qingbo ,  DI, Qingyun ,  WANG, Tsili ,  CHEN, Wenxuan ,  DU, Jiansheng ,  YANG, Yongyou ,  HE, Xinzhen ,  LIU, Yang ,  HONG, Linfeng ,  XIE, Qijun

IPC分类号： E21B7/04

摘要： The invention discloses an anti-rotating device of non-rotating sleeve. The anti-rotating device is connected with the non-rotating sleeve in such way so that the anti-rotating device can transmit circumferential acting force to the non-rotating sleeve, thus the non-rotating sleeve are prevented from rotating, the anti-rotating device comprises an anti-rotating member and a elastic member, the anti-rotating member can move in a generally radial direction of the non-rotating sleeve, and the elastic member acts on the anti-rotating member and provides acting force being substantially radially outward for the anti-rotating member. According to the anti-rotating device of the non-rotating sleeve and a rotary guiding device, on the one hand, bases can be provided for accurate attitude measurement and guiding control, on the other hand, excessively rapid rotation of the two non-rotating sleeve can be prevented only by using one anti-rotating device, and meanwhile the anti-rotating device can further provide guiding driving force based on the minimum structure size.

公开(公告)号：EP3611331A1

公开(公告)日：2020-02-19

申请号：EP18877600.9

申请日：2018-03-02

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： LIU, Qingbo ,  DI, Qingyun ,  WANG, Tsili ,  CHEN, Wenxuan ,  DU, Jiansheng ,  YANG, Yongyou ,  HE, Xinzhen ,  LIU, Yang ,  HONG, Linfeng ,  XIE, Qijun

IPC分类号： E21B7/06

摘要： A rotary guiding device based on radial driving force, comprising: a rotating shaft, the rotating shaft is used to drive a tool head to rotate, the rotating shaft includes an upper shaft portion, a lower shaft portion, and a steerable portion, the upper shaft portion and the lower shaft portion are steerably connected by the steerable portion; a non-rotating body mounted on the upper shaft portion, the non-rotating body is substantially non-rotating with respect to the rotating shaft in the circumferential direction when the rotating shaft rotationally drives the tool head, the lower shaft portion includes a rib portion that coincides at least partially in the axial direction with the non-rotating body, the non-rotating body includes at least three hydraulic driving mechanisms uniformly distributed along its circumferential direction, the three hydraulic driving mechanisms are adapted to controllably generate radial drive forces respectively, the radial driving forces acts on the rib portion that is overlapped with the non-rotating body so that the lower shaft portion can be deflectable relative to the steerable portion.

公开(公告)号：EP3613940A1

公开(公告)日：2020-02-26

申请号：EP18879923.3

申请日：2018-03-02

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： LIU, Qingbo ,  DI, Qingyun ,  WANG, Tsili ,  CHEN, Wenxuan ,  DU, Jiansheng ,  YANG, Yongyou ,  HE, Xinzhen ,  LIU, Yang ,  HONG, Linfeng ,  XIE, Qijun

IPC分类号： E21B23/08 ,  E21B7/06

摘要： A rotary guiding device comprises a rotating shaft, the rotating shaft is used to drive a tool head to rotate, and the rotating shaft includes at least one steerable portion; a first non-rotating body and a second non-rotating body, the first non-rotating body and the second non-rotating body are substantially in a non-rotating state in a circumferential direction thereof relative to the rotating shaft when the rotating shaft drives the tool head to rotate; a guide driving mechanism, the guide driving mechanism is configured to connect the first non-rotating body and the second non-rotating body, the guide driving mechanism is adapted to generate a substantially axial driving force to change the relative direction between the first non-rotating body and the second non-rotating body, thereby changing the orientation of the tool head.

公开(公告)号：EP3312382B1

公开(公告)日：2019-12-18

申请号：EP16888601.8

申请日：2016-11-12

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： ZHANG, Wenxiu ,  CHEN, Wenxuan ,  DI, Qingyun ,  LIU, Jianguang ,  SUN, Yuntao ,  YANG, Yongyou ,  ZHENG, Jian

IPC分类号： E21B47/022 ,  E21B47/024 ,  G01C21/16 ,  G01P15/18