--> Abstract: Tarim Basin: Petroleum Geology and Future Discovery Potential; #90063 (2007)

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Tarim Basin: Petroleum Geology and Future Discovery Potential

 

Zhang, Guangya1, Wen-zhi Zhao2, Xin-yuan Zhao3 (1) PetroChina, Beijing, China (2) Research Institute of Petroleum Exploration and Development, PetroChina, Beijing, China (3) Tarium Oilfield, Petrochina Company LTD, Xinjiang, China

 

The Tarim Basin, covering a total area of 560,000 km2, is a large composite basin consisting of a Paleozoic marine cratonic basin and a Meso-Cenozoic continental foreland basin. The sedimentary succession in the basin is up to 18,000 m in thickness. Primary source rocks of the Tarim Basin are the Cambrian-Lower Ordovician, the Middle-Upper Ordovician marine source rocks, the Carboniferous-Permian continental-oceanic transitional facies source rocks, and the Triassic-Jurassic continental source rocks. The dominant reservoir rocks consist of Cambrian-Ordovician carbonate and Paleozoic-Tertiary clastic rocks. In the cratonic basin, the main traps are anticlinal drapes, carbonate subcrops, lithologic traps and stratigraphic traps. The foreland basin is dominated by structural traps. Fault blocks and stratigraphic traps are limited to the slope of the foreland basin. The Tarim basin is rich both in oil and gas resources. Oil is mainly concentrated in the cratonic basin, particularly on the Tabei and Central uplifts.

 

AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California