PHYSICAL PROPERTY VARIATION OF CRUDE OIL IN BEACH AREA, LIAOHE BASIN

Based on relationship between crude oil density,viscosity and depth,it is established in this paper the data model and the complete geologic profile of crude oil physical property in beach area of the Liaohe Basin.Physical properties of crude oil from different wells and formations are analyzed.Figures are drawn and it is concluded that density and viscosity of crude oil increase with depth and the variation trend varies in different formations.The distribution of crude oil physical property assumes ring-shaped surrounding the hydrocarbon kitchen in plane.Viscosity and density of crude oil show regular decreases in ring from hydrocarbon kitchen to the surroundings.It is also consistent with the distribution characteristics of oil and gas accumulation zone,which appears zonal distribution around the depression.