Hydrocarbon Detection Based on Phase Decomposition in Chaoshan Depression, Northern South China Sea

Authors

  • Guangjian Zhong Key Laboratory of Marine Mineral Resources, Ministry of Natural Resources, Guangzhou, China;Guangzhou Marine Geological Survey, Guangzhou, Guangdong, China
  • Renqi Jiang New Horizons Ltd., Beijing, China
  • Hai Yi Key Laboratory of Marine Mineral Resources, Ministry of Natural Resources, Guangzhou, China;Guangzhou Marine Geological Survey, Guangzhou, Guangdong, China
  • Jincai Wu New Horizons Ltd., Beijing, China
  • Changmao Feng Key Laboratory of Marine Mineral Resources, Ministry of Natural Resources, Guangzhou, China;Guangzhou Marine Geological Survey, Guangzhou, Guangdong, China
  • Gang Zhou New Horizons Ltd., Beijing, China
  • Kun Wang New Horizons Ltd., Beijing, China
  • Lina Liu New Horizons Ltd., Beijing, China
  • Ming Sun Key Laboratory of Marine Mineral Resources, Ministry of Natural Resources, Guangzhou, China;Guangzhou Marine Geological Survey, Guangzhou, Guangdong, China

DOI:

https://doi.org/10.30564/jms.v3i2.3063

Abstract

Located in the northern South China Sea, Chaoshan Depression is mainly a residual Mesozoic depression, with a construction of Meso-Cenozoic strata over 7000m thick and good hydrocarbon accumulation conditions. Amplitude attribute of -90°phase component derived by phase decomposition is employed to detect Hydrocarbon in the zone of interest (ZOI) in Chaoshan Depression. And it is found that there are evident amplitude anomalies occurring around ZOI. Phase decomposition is applied to forward modeling results of the ZOI, and high amplitudes occur on the -90°phase component more or less when ZOI is charged with hydrocarbon, which shows that the amplitude abnormality in ZOI is probably caused by oil and gas accumulation.

Keywords:

Chaoshan Depression; South China sea; Amplitude attribute of -90° phase component; Hydrocarbon detection

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Vol. 3 , Iss. 2 (April 2021)

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