公开(公告)号：US10941651B2

公开(公告)日：2021-03-09

申请号：US15967826

申请日：2018-05-01

申请人： U-Target Energy Ltd.

发明人： Xia Pan ,  Zhenyuan Hu ,  Fuchun Liu ,  Silviu Calin ,  Zhiqun Wang ,  Jack Wang ,  Michel Herzig

IPC分类号： E21B47/13 ,  E21B4/02 ,  E21B7/06 ,  E21B41/00 ,  E21B47/18 ,  E21B17/02 ,  E21B17/042 ,  E21B49/00 ,  E21B47/017 ,  E21B47/0228

摘要： A complete telemetry system and methods for downhole operations. The telemetry system includes an instrumented near-bit sub located below the Mud Motor and connected to the drill bit as well as a conventional MWD tool located above the mud motor. Parameters such as inclination of the borehole, the natural gamma ray of the formations, the electrical resistivity of the formations, and a range of mechanical drilling performance parameters are measured. Electromagnetic telemetry signals representing these measurements are transmitted uphole to a receiver associated with the conventional MWD tool located above the motor, and transmitted by this tool to the surface via mud pulse signals. The system is particularly useful for accurate control over the drilling of extended reach and horizontally drilled wells.

公开(公告)号：US11821304B2

公开(公告)日：2023-11-21

申请号：US17161192

申请日：2021-01-28

申请人： U-Target Energy Ltd.

发明人： Xia Pan ,  Zhenyuan Hu ,  Fuchun Liu ,  Silviu Calin ,  Zhiqun Wang ,  Jack Wang ,  Michel Herzig

IPC分类号： E21B47/13 ,  E21B47/18 ,  E21B7/06 ,  E21B17/02 ,  E21B47/0228 ,  E21B4/02 ,  E21B41/00 ,  E21B17/042 ,  E21B49/00 ,  E21B47/017

CPC分类号： E21B47/13 ,  E21B4/02 ,  E21B7/067 ,  E21B17/0285 ,  E21B17/042 ,  E21B41/0085 ,  E21B47/017 ,  E21B47/0228 ,  E21B47/18 ,  E21B49/00

摘要： A complete telemetry system and methods for downhole operations. The telemetry system includes an instrumented near-bit sub located below the Mud Motor and connected to the drill bit as well as a conventional MWD tool located above the mud motor. Parameters such as inclination of the borehole, the natural gamma ray of the formations, the electrical resistivity of the formations, and a range of mechanical drilling performance parameters are measured. Electromagnetic telemetry signals representing these measurements are transmitted uphole to a receiver associated with the conventional MWD tool located above the motor, and transmitted by this tool to the surface via mud pulse signals. The system is particularly useful for accurate control over the drilling of extended reach and horizontally drilled wells.

公开(公告)号：US11441419B2

公开(公告)日：2022-09-13

申请号：US17161227

申请日：2021-01-28

申请人： U-Target Energy Ltd.

发明人： Xia Pan ,  Zhenyuan Hu ,  Fuchun Liu ,  Silviu Calin ,  Zhiqun Wang ,  Jack Wang ,  Michel Herzig

IPC分类号： E21B47/13 ,  E21B4/02 ,  E21B41/00 ,  E21B47/18 ,  E21B7/06 ,  E21B17/02 ,  E21B17/042 ,  E21B49/00 ,  E21B47/017 ,  E21B47/0228

摘要： A complete telemetry system and methods for downhole operations. The telemetry system includes an instrumented near-bit sub located below the Mud Motor and connected to the drill bit as well as a conventional MWD tool located above the mud motor. Parameters such as inclination of the borehole, the natural gamma ray of the formations, the electrical resistivity of the formations, and a range of mechanical drilling performance parameters are measured. Electromagnetic telemetry signals representing these measurements are transmitted uphole to a receiver associated with the conventional MWD tool located above the motor, and transmitted by this tool to the surface via mud pulse signals. The system is particularly useful for accurate control over the drilling of extended reach and horizontally drilled wells.