湖南石门地区中上寒武统成岩作用及储层特征

湖南石门地区中上寒武统为一套浅海碳酸盐岩沉积,以局限台地潮坪沉积力主,其次为浅滩沉积.在薄片观察的基础上,使用阴极发光显微镜、电子探针、X衍射分析、和碳/氧同位素分析资料,研究了该区碳酸盐岩的主要成岩作用类型,如胶结作用、白云石化作用、溶解作用等.恢复和建立了该区碳酸盐岩的成岩环境和孔隙演化历史,对该区的储层特征进行评价,认为最好的储层为结晶白云岩型储集层.

DIAGENESIS AND RESERVOIR CHARACTERISTIC OF MIDDLE-UPPER CAMBRIAN IN SHIMEN REGION,HUNANPROVINCE

The sequence of the middle-upper Cambrian in Shimen region,Hunan province,is domi-nated by carbonate rocks. The petrologic characteristic indicate that the sequence was mainlydeposited in the restricted carbonate platform. According to the observation of a large number of sections,cathode luminescent petrography,microprobe analysis,X-ray diffraction,and stable isotopes of carbon and oxygen,theauthor the diagenesis and reservoir characteristics in this region for the first time and somevaluable main conclusions are proposed in this papr.