镇泾油田长8油层录井综合评价

镇泾油田长8段砂体均有油气显示,岩屑荧光显示以油斑-油浸为主,岩性为细砂岩,砂体厚度一般10-25米,各井区油气显示特征存在差异。通过对长8砂体分布、沉积相特征以及物性、裂缝、气测等录井地质特征分析,提出含油级别在油斑以上、有效砂体厚度大于10m,这些砂体具有好的沉积相及裂缝配置关系是最有可能取得试油成果的。

OVERALL MERIT ON CHANG No.8 OIL ROCK LOGGING OF ZHENJING OIL FIELD

The hydrocarbon in Chang No.8 oil sand,with the Fluorescence of the oil patch-oil immersion in rock cuttings,has been detected in Zhenjing oil field.The oil sand,with general thickness of 10-25m,is mainly contained fine-sand.Oil and gas characteristics are various in different areas.Through the analysis of the distribution,sedimentary facies and the relative geological characters in Chang No.8 sand,such as the lithological properties,the fracture and the gas measure,the results suggest that the oil test should be carried out in the sands,with the lowest Fluorescence display of the oil patch.The effective thickness of the sands,developed in the favorable sedimentary facies and,are more than 10m.Meanwhile,the sands possessed the excellent assemblage of the fracture.