Petroleum Accumulation and Distribution in the. Jurassic System in Tarim Basin
- Received Date: 1996-10-11
- Rev Recd Date: 1997-05-12
- Publish Date: 1998-03-10
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Key words:
- petroleum accumulation /
- model of pool formation /
- Jurassic /
- Tarim Basin
Abstract: The Jurassic System is one of the rare oil-bearing horizons with both marine and nonmarine petroleumsources discovered in Tarim Basin up to now. Abundant hydrocarbon source,high porosity and permeability,good muddy caprocks and various kinds of traps constitute beneficial conditions to form the Jurassic oil pools.There are 2 types of petroleum accumulation,i. e. ,Kuche-type and Tabei-type which were formed during Hi-malayan orogeny. Petroleum distribution could be divided into 5 zones including thrust-fold zone,foredeepzone,slope zone,tensional foreland uplift zone and drapping anticline zone. And petroleum occurrence wascontrolled by faults and unconformities which are the secondary migration of petrleum. As a target bed,theJurassic systems distributed in the northern slope of the Tabei uplift,thrust-fold zone of the Kuche depressionand the Yingjisu sag are the favourable exploration area.
Citation: | Lu Xiuxiang. Petroleum Accumulation and Distribution in the. Jurassic System in Tarim Basin[J]. Acta Sedimentologica Sinica, 1998, 16(1): 64-69. |