Geological Description Of Gao Tai-Luo Pangyuan Area

The paper is in a large number of summarizing the predecessors’ research results foundation, comprehensive utilization research area logging data, drilling data and core analysis test data, the research district Chang4+5, Chang6and Chang8reservoir of small layer of fine division and correlation, sedimentary facies and sand body exhibition cloth, reservoir characteristics and reservoir evaluation research, according to the reservoir features and the main controlling factors of the reservoir formation of study area, logging curves are secondary interpretation and reserves double calculation, and to evaluate the reservoir.The results of the study show that:Chang4+5, Chang6and Chang8reservoir is mainly affected by delta front underwater distributary channel sand body and mouth bar sand control, pore type is mainly intergranular hole, followed by grain in the hole and mold hole, feldspar dissolved pore, and a small amount of crack hole, the sandstone belongs to very low hole, special low permeability reservoir, intraformational and interlayer heterogeneous with weak is given priority to, but property and lithologic partition sandwich is development, extend the group3close to each other in a small layer property. Comprehensive evaluation of the reservoir in deep, very low porosity, special low permeability, low production, low very low abundance, medium reservoir.