The reporter learned from the China Geological Survey on the 21st that China's gas hydrate (“flammable iceâ€) core gas collection technology has been greatly innovative.
Two methods developed by researchers at the Bureau's oil and gas resources research center for collecting gas from gas hydrate cores—vacuum constant temperature extraction and constant temperature oscillation drainage extraction methods have greatly improved the efficiency of field work and the quality of collected gas samples. The related technology has been successfully applied to the gas hydrate drilling site in the Mohe Basin and has achieved good results.
According to reports, vacuum constant temperature extraction using vacuum, constant temperature degassing technology, a high degree of degassing, degassing and stable environment, improve the gas collection efficiency, eliminate the influence of air, and ensure the quality of gas sample extraction. The constant temperature oscillating drainage extraction method effectively integrates the innovative design of the gas gathering device, the gas collection tank, the gas extraction environment device and the degassing and gas extraction device, eliminates the influence of air and temperature, and improves the working efficiency and the quality of the collected gas sample. . (Hu Qifeng)
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