Abstract
The paper chooses foreland basin as its research object. after summarizing the accumulation characteristics of the different phases and different parts of them, the common models of the whole foreland basin are given and the physical simulation experiments are carried out. It shows that the foreland basins experience three phases of evolution. Phase 1 is the period that the source rock and structure oil and gas traps form. Phase 2 is the period that multi-cycle reservoir and lithologic oil and gas pool form. phase 3 is the period that foreland uplift belt and fault anticline pool form. Then a foreland basins has three different belts including of thrust belt, foredeep and foreland slope belt, foreland uplift belt, and the belts have different accumulation models. With regard to the hydrocarbon accumulation period of the foreland basin, the thrust belt have precedence to other belt. foredeep and foreland slope belt forms the secondary pools. Foreland uplift belt accumulates hydrocarbon very quickly.
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