GEOCHEMICAL CHARACTERISTICS AND HYDROCARBON RESERVOIR FORMING PROCESURE ANALYSIS OF TWO TERMS OF RESERVOIR FORMING IN SHENGTUO OILFIELD
胜坨油田两期成藏地球化学特征及成藏过程分析

The analysis of reservoir-forming terms and its procesure of Shengtuo oilfield in Dongying sag proves that the northern steep slop zone of Dongying sag has the geological condition of two terms of reservoir-forming.The crude oil biologic criteria and petrphysical characteristics and the result of oil and source rock correlation for all the oil-bearing formations provides direct geochemical evidence.The Shengtuo oilfield in Dongying sag under goes two procesures: accumulation and breakdown in the early time(Oligocene),the 2nd accumulation and adjustment in the later time(Pliocene).The two terms of reservoirforming has an obvious effect on the reserves distribution in Shengtuo oilfield.