4/11/2025, 8:09:56 AM 星期五
Research on key technologies for efficient drilling of coalbed methane horizontal wells: Taking a coalbed methane block in Qinshui Basin, Shanxi Province as an example
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Beijing Exploration Engineering Research Institute, Beijing 100083, China

Clc Number:

TE243;P634.7

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    Abstract:

    In order to improve the efficiency of coalbed methane resource development and utilization, a high-efficiency drilling technology based on near bit geological guidance is proposed to address the problems of delayed layer identification by conventional remote gamma and EMWD instruments, low resolution of thin coal seams, and easy formation of wellbore trajectories. Taking a coalbed methane block in Qinshui Basin, Shanxi Province as an engineering example, the construction situation, application characteristics, and effects of multiple horizontal wells arranged in the block are elaborated, and a set of promotable and effective methods is summarized. The replicable high-efficiency drilling technology for horizontal wells of coalbed methane, including the use of flexible drilling tool combinations, the selection of reasonable drilling parameters, and the combination of fine control technology for wellbore trajectory, provides technical reference for the efficient development and utilization of coalbed methane.

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History
  • Received:May 30,2023
  • Revised:August 16,2023
  • Adopted:August 16,2023
  • Online: October 21,2023
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