PROPERTIES AND GEOLOGICAL MEANINGS OF RESERVOIR ROCK-EVAL PYROLYSIS PARAMETERS OF ZAO-Ⅴ OIL SUB-FORMATION IN SHENJIAPU oil field

The geochemical implications and geological meanings of reservoir Rock-Eval pyrolysis parameters were discussed in details in the paper,and combined with the properties of reservoir Rock-Eval pyrolysis parameters in Zao-Ⅴ oil sub-formation in Shenjiapu oil field,the crude oil properties and vertical oil saturation of reser-voirs were analyzed,the main oil layers were pointed out,the effectiveness of the perforations were checked,and sand layers requested for being perforated were put forward in order to raise the production.The results showed that the crude oil had high density and viscosity,and reservoir oil saturation became worse vertically,i.e.,from oil alyers to oil-water layers till pure water layers with increase of depth.