Zichang Oilfield Old Grass Bay Fine Reservoir Description

With the rapid development of mineral mining industry, most domestic oilfieldshave entered the high water cut development stage, the residual oil in the geologicalstructure is difficult tomining,and the need for comprehensive multidisciplinary distributionof residual oil arerelated to describe as a key stage in the data mining. Objective to study thecore technology of fine reservoir description for the distribution of data on residual oil tocollect research, and achieve high precise level of oil mining purposes, and can improve theutilization rate of resources. Zichang oilfield old grass Bay is located in ShaanxiProvince, Zichang County,structural location in North Shaanxi Slope Erdos basin to theEast, Chang2oil-bearing formation is the main oil producing region. According to thelithology, electric property and oil-bearing characteristics, will be further divided into2formations as long long21-1, long21-2,long21-3and some22reservoir groups, on the basis ofstratigraphic correlation,stratigraphic framework is built in the unity of. Lao Cao wan chang2reservoir ’overall tectonic framework is a gently West monocline, nose structure lessdeveloped in the westward monocline on. According to the analysis of regional sedimentarybackground, structural characteristics, sedimentary characteristics, reservoir physicalproperties, to determine thesmall layer hole, permeability, saturation parameters planedistribution characteristics andreservoir3D geological modeling, and the comprehensiveevaluation of reservoir, puts forward reasonable suggestions for future development.