Great Wall Drilling breaks the record for one drilling of deep coalbed methane horizontal wells in China

2024-10-15

On October 12th, the reporter learned from Great Wall Drilling Company that the coal seam gas company Jishen 6-3 platform 01 well, which was drilled by the company's drilling company, has been successfully completed, 12 days ahead of the design cycle, and the coal seam drilling encounter rate has reached 100%. The well has been drilled to a depth of 4550 meters and a length of 2140 meters per trip, breaking the record for the longest drilling depth of a deep coalbed methane horizontal well in China and marking a new breakthrough in the exploration and development of deep coalbed methane by PetroChina.

The Jishen 6-3 platform is the first deep coalbed methane platform deployed by a coalbed methane company with a horizontal section length exceeding 2000 meters. Since the launch of the platform, Great Wall Drilling has deepened the integration of Party A and Party B, integrated geological engineering and other efficient operation mechanisms, repeatedly demonstrated construction plans and polished technologies, iteratively upgraded trajectory control, wellbore stability and other processes, innovatively applied wellbore cleaning technology and near drill bit geological guidance system, and used real drilling natural gamma curves for real-time analysis of lithology changes. Fine tuning the performance of drilling fluid to enhance its sealing and anti collapse capabilities effectively addresses challenges such as larger off target distances and higher construction difficulties, extending the length of one drilling trip from 2097 meters to 2140 meters. Vigorously promote the use of highly aggressive drill bits, high torque long-life screws, hydraulic oscillators and other acceleration tools to lay the foundation for safe, high-quality and fast drilling, and promote further acceleration and efficiency improvement of deep coalbed methane horizontal wells

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