塔河油田1区三叠系隔夹层研究

Research on Triassic interbeds in block one of Tahe Oilfield

依据塔河油田1区三叠系地质特点,处理了该区37口井的测井、地质资料,并对分布于研究区内的隔夹层进行了详细研究。研究区共划分出3个油层组、11个小层、10个层间隔层和26个层内夹层。该文对小层间的隔层及小层内夹层的平面展布和横向展布进行了描述,并对隔夹层与剩余油分布规律的关系进行了分析和研究。结果表明:主力储层间的隔层延伸较长,厚度稳定,底部剩余油富集;主力储层内的夹层分布频率和分布密度值较高,剩余油富集程度高。

According to the geological characteristics of Triassic reservoir in block one of Tahe Oilfield,the logging data of 37 wells in this area are dealt with,and the distribution of interbeds is studied.The study area is divided into 3 oil layer groups,11 sublayers,10 interlayers and 26 interbeds.The distribution of interlayers and interbeds is described,and the relationship between interbeds and the remaining oil distribution are analyzed.The result shows that the interlayers between the main reservoirs extend a long distance with the stable thickness and a enrichment of remaining oil at the bottom,and the distribution frequency and density of the interbeds in the main reservoirs are high with a high level of remaining oil.