CHARACTERISTICS AND ANALYSIS OF SUBMARINE SHALLOW GAS AT THE SOUTH YELLOW SEA

Daixin CHEN; Zongguo DING; Gaojian HAO; Cuigan KE; Wen SHE

doi:10.16028/j.1009-2722.2018.04008

2018 Vol. 34, No. 4

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Daixin CHEN, Zongguo DING, Gaojian HAO, Cuigan KE, Wen SHE. CHARACTERISTICS AND ANALYSIS OF SUBMARINE SHALLOW GAS AT THE SOUTH YELLOW SEA[J]. Marine Geology Frontiers, 2018, 34(4): 56-62. doi: 10.16028/j.1009-2722.2018.04008

Citation:

Daixin CHEN, Zongguo DING, Gaojian HAO, Cuigan KE, Wen SHE. CHARACTERISTICS AND ANALYSIS OF SUBMARINE SHALLOW GAS AT THE SOUTH YELLOW SEA[J]. Marine Geology Frontiers, 2018, 34(4): 56-62. doi: 10.16028/j.1009-2722.2018.04008

CHARACTERISTICS AND ANALYSIS OF SUBMARINE SHALLOW GAS AT THE SOUTH YELLOW SEA

Marine Survey & Geotech Operating Company, Geophysical-COSL, Tianjin 300459, China

Received Date: 30 January 2018

Abstract

Abstract

Marine geological survey data, which was collected from a wind farm, indicates that there is a great quantity of submarine shallow gas in the South Yellow Sea. On seismic profiles, the shallow gas is characterized by various features, such as the sudden interrupt of continuous reflection, random reflection, gas blocks, lower resolution and quick attenuation of high frequency components. No fault has been found in the research area, and thus the submarine shallow gas is well preserved. Data suggests that the gas is a kind of methane biogenetic gas. The depth of the diffuse gas is about 5 m, while the top of high pressure zone is about 272 m. Therefore, a 75 m drilling hole is beyond the high pressure zone. The submarine shallow gas has no risk and impact to submarine engineering programs in the region.
- the South Yellow Sea /
- submarine shallow gas /
- reflection wave /
- mathane biogenentic gas

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References

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