Analysis On Geological Model Of Permian And Triassic In Puguang Area

In this paper, the reservoir geological models for Permian and Triassic were established using seismic data, geophysical logging and geology data,and the application of geological model in predictions of abnormal pressure was discussed.Basing on the analysis of structure interpretation in the three work areas, the structural models were established with geology data of wells. The area of Puguang and Heba have a strong tectonic deformation, and can be divided into two deformation layers. Yuan ba area has a weaker deformation and less faults.Basing on the analysis of well facies, lithology facies and section facies, the paper interpreted seismic attribution, inferred Standard deviation amplitude attribute and Geometric mean amplitude attribute had the highest relationship with the facies. And then the paper got the facie maps by the analysis of the two seismic attribution. It presents Shelf, slope, shallow, platform sedimentary facies for the three parts on the bottom of Feixianguan group. There are almost the single evaporation platform facie in the fourth part of Feixianguan group. During the time of Jialingjiang group deposited, there were frequent changes of water bodies. The main facie of Jialingjiang group are platform and inner platform point bar facie. Established reservoir facie models by determinable modeling method.The paper established the reservoir parameters models by reservoir parameters method in control of the facies.Based on the exponential function relation between formation pressures and the porosity, permeability, the paper got porosity and permeability data through the attribution model, predicted pressure normal in different formation and achieved good results...