ACCUMULATION MODELS OF PALEOWEATHERING CRUST RESERVOIR IN CARBONATE YINGMAILI AREA
英买力地区碳酸盐岩古风化壳油气聚集模式探讨

The matrix with low porosity and permeability in the carbonate reservoir in Yingmaili area can not provide effective reservoir space, but because of the cropping out long time or many times, they suffer leach, denudation and karsification near surface, so in carbonate the fracture, solution hole and solution cave have developed. They form the paleoweathering crust reservoir. And they mainly distribute the weathering crust belt beneath the superface of the burial hill. We have worked out the oil and gas coming from the great of lake faces source in Kuche depression pass through the migration pathway which is the unconformity surface of paleontology and Mesozoic group and the carrier bed between the Paleogene System and cretaceous or the Jurassic and Triassic sandstone. At last they arrive the carbonate paleoweathering crust reservoir and accumulate beneath the cretaceous Kapushaliang mudstone.