Microbial Geochemical Exploration Technology and Prospect for Its Application in South China Sea Deepwater
Exploration

Abstract

Abstract: Offshore oil and gas exploration is a high-risk activity with high investment. Hydrocarbon detection of underlying exploration targets, along with conventional geophysical exploration technology, can remarkably improves offshore oil and gas exploration success rate, deepwater area in particular, and reduces hydrocarbon exploration risk and cost. Based on the hydrocarbon microseepage principle, microbial geochemical exploration (MGCE) detects existence of hydrocarbon reservoirs directly by means of inspecting hydrocarbon oxidation bacterium and light hydrocarbon gas. MGCE is a direct hydrocarbon-detecting technology, which has a wide application in offshore area. In recent years, MGCE has been used for oil and gas estimation of deepwater traps in Qiongdongnan Basin and Pearl River Mouth Basin of South China Sea, achieving good results. The drilling result confirms that MGCE is suitable for oil and gas exploration in the region. MGCE is a flexible, fast and effective hydrocarbon detecting technology worth to be recommended for the central and southern parts of South China Sea, where the exploration degree is low and the risk is high. Large-scale application of MGCE is hopeful to accelerate deepwater exploration process of South China Sea.

Key words: oil and gas exploration, hydrocarbon detecting, microbial geochemical exploration, deepwater area of South China Sea, resources assessment

Hao Chun, Sun Zhipeng, Xue Jianhua, Zhang Simeng, Song Aixue, Mei Hai, Li Tao, Zeng Xiaoyu. Microbial Geochemical Exploration Technology and Prospect for Its Application in South China Sea Deepwater Exploration[J]. China Petroleum Exploration, 2015, 20(5): 54-62.

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Microbial Geochemical Exploration Technology and Prospect for Its Application in South China Sea Deepwater Exploration

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