A CASE STUDY OF RELATIONSHIP BETWEEN THE COMPONENT DISTRIBUTION OF TRACE METAL ELEMENTS IN STRATIGRAPHIC WATER AND THE HYDROCARBON ACCUMULATION：YANGDACHENGZI OIL RESERVIOR IN THE SONGLIAO BASIN

This paper discussed the components and content distribution of trace metal elements in stratigraphic water.The result shows that the content of various metal elements is Fe>Sr>Zn>Mn>Cu>Ni>Cr in stratigraphic water of the Yangdachengzi oil-bearing formation.Ratio of Ni/Cu and Mn/Fe is obviously different in various areas.The content of metal elememts in stratigraphic water is concerned with the hy drocarbon-bearing property of reservoir on the plane.The content of metal elements is gradually decreased from oil and gas bearing areas to water bearing areas.