【摘要】 通过鉴别、提取高邮凹陷永安地区阜四段烃源岩,来标定测井曲线与有机碳含量两者之间的定量关系,对烃源岩中有机质含量进行定量评价.结果表明TOC计算值和实测值的相关系数(R2)为89.3%,符合程度良好.该方法的有机碳计算值弥补地化资料的不足,对烃源岩的定量评价具有切实的可行性和较好的适用性.更多还原

【Abstract】 Different from conventional geochemical evaluation way,the quantitative evaluation of the organic carbon in the hydrocarbon source rocks according to logging information is based on the response characteristics of logging curve to TOC,and the logging curve is easily obtained.The organic matter content in different hydrocarbon source rocks is different,but the difference can be reflected in acoustic logging curve,density logging curve and resistivity logging curve.The quantitative evaluation of the organic carbon in the hydrocarbon source rocks can be carried out by extracting the characteristics and obtaining the quantitative relationship between the logging curve and the organic matter content.The method is applied in Yong’an oilfield in Gaoyou Sag.The result shows that the correlation between the value of TOC obtained by this method and the value obtained by geochemical data is good (correlation coefficient is about 89.3%).It is concluded that the log evaluation of hydrocarbon source rocks can not only make up the deficiency of coring data,but also is of practical feasibility and preferable applicability in oil field exploration and development.更多还原