China: Significant Progress in Over Deep Drilling Sinopec’s Well to Produce Over 400,000 Cubic Meters of Shale Gas Daily at Depth of 4,300 Meters

Editor: Ahlam Rais

Marking a significant progress in deep shale gas exploration at depths of more than 4,000 meters, Sinopec’s ultradeep prospecting well has been tested to produce 412,000 cubic meters of high-quality shale gas daily at a depth of 4,300 meters. The move is expected to increase Sinopec's shale gas production capacity in southeast Sichuan by more than 2 trillion cubic meters.

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Sinopec's ultradeep prospecting well to produce 400,000 cubic meters of shale gas daily.
Sinopec's ultradeep prospecting well to produce 400,000 cubic meters of shale gas daily.
(Source: Sinopec)

Chongqing/China – China Petroleum & Chemical Corporation has announced that Dongye Deep 2, a significant shale gas prospect developed by Sinopec Exploration Company in Dongxi, Chongqing, China has been tested to produce 412,000 cubic meters of high-quality shale gas per day at a depth of 4,300 meters.

This success marks significant progress in over-deep drilling for shale gas at depths of more than 4,000 meters in China. It will increase Sinopec's shale gas production capacity in southeast Sichuan by more than 2 trillion cubic meters. The tested daily shale gas production of 412,000 cubic meters can provide fuel for 820,000 households, based on a family of three with a daily gas consumption of 0.5 cubic meters.

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After the breakthrough of the Fuling shale gas field in 2012, Sinopec has expanded its expertise in deep shale gas deposits. In 2018, Sinopec discovered and commercialized the Weirong shale gas field at a depth of 3,800 meters.

The technical requirements for developing particularly deep natural gas deposits at depths of more than 4,000 meters are high due to difficulties at extreme depths and complex crustal stresses. In 2019, Sinopec achieved a breakthrough in fracturing technology for shale gas drilling at depths of more than 4,000 meters with the high-quality Dongye Deep 1 well, which produced 310,000 cubic meters per day.

For the development of the Dongye Deep 2 well, Sinopec Exploration Company hired a Deep Shale Gas Research and Innovation Team to conduct technical analysis, including target evaluation and development of volumetric fracturing technology for deep shale gas to achieve a 100 % drilling rate for high-quality shale gas. To reduce costs, all of Sinopec's equipment, tools, and materials were manufactured in China.

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