Probe into Exploration Prospect of Cambrian Subsalt Carbonate Rocks in Tarim Basin from East Siberia Basin

Abstract

Abstract: East Siberia basin and Tarim basin are all ancient craton basins where a series of oil-gas fields have been found, with different scales and reserves. The correlation of hydrocarbon accumulation and major control factors between these two basins indicates that there exist premium source rocks and reservoirs in subsalt carbonate rocks of Cambrian in these basins, and regionally distributing gypsum-salt rock of Middle Cambrian is good cap rock. The study shows that the subsalt carbonate rocks of Cambrian in Tarim basin possess favorable exploration prospect, the favorable areas or zones are located in the main host belts of Tazhong uplift and its two sides, Yingmaili and Lunnan areas in Tabei uplift and southern structural belt of Bachu swell, based on the source-reservoir-cap rock assemblage, structural development, sedimentary environment, oil-gas shows and the petroleum accumulation characteristics of the two basins.

Key words: East Siberia, Tarim basin, Cambrian, subsalt zone, hydrocarbon accumulation

CLC Number:

TE111.1

LV Xiu-xiang, BAI Zhong-kai, FU Hui. Probe into Exploration Prospect of Cambrian Subsalt Carbonate Rocks in Tarim Basin from East Siberia Basin[J]. Xinjiang Petroleum Geology, 2009, 30(2): 157-162.

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