摘要
在利用测井资料进行地化研究中 ,有些研究因对岩石中有机质分布及其演化阶段与测井响应特征的对应关系缺乏机理研究 ,在测井地化指标与实验室分析指标对比中有时会出现一些混乱 ,影响了测井在评价生油岩中的应用效果。为了进一步理顺测井与地化之间的对应关系 ,提高测井分析地化指标的精度 ,文章根据具体事例对地化指标与测井响应机理及其对应关系进行了研究 ,并对测井评价生油岩方法进行了分析。提出了与测井机理最相近的地化指标 ,并指出利用测井评价生油岩中最准确的指标是生油岩中含油气饱和度的观点。通过实际验证 ,见到较好的效果。
In geochemical research, the application of log data in evaluating source rocks was influenced because of lacking of the research on the mechanisms of the correspondence relation between the distribution and evolution stage of organic matters in source rocks and the log reponse characteristics, and of meeting with some uncoordinated circumstances in contrasting the logging geochemical indexes with the laboratorial analysis indexes. According to a concrete case, the mechanisms of the correspondence relation between the geochemial indexes and the log response characteristics was studied and the methods of evaluating source rocks by log data were analyzed in order to straighten further out the correspondence relation between geochemistry and well logging and to raise the accuracy of analyzing the geochemical indexes by log data. In the paper, a geochemical index being most approximate to the logging/mechanism is put forward and it is pointed out that the most accurate index of evaluating source rocks by log data is the oil/gas saturation of source rocks. This method introduced in the paper has already been verified practically and a good result has been achieved.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2004年第9期30-32,共3页
Natural Gas Industry
