摘要
通过对研究区内单井相和测井相分析,利用研究区长7油层组的单井相图、电测曲线来研究长7油层组的沉积相。结果显示其为三角洲前缘亚相沉积,其沉积相可进一步划分为:水下分流河道、河口坝、分流间湾和席状砂等四种类型。油气的聚集受沉积微相的控制影响,研究区长7油层组油气聚集的有利场所是水下分流河道和河口坝。
By analysis of single well facies and log facies, sedimentary facies of member 7 in Yanchang formation of Hujianshan aera in Ordos basin was studied. The results show that sedimentary facies of member 7 in Yanchang formation is delta front intrafacies, the sedimentary facies can be divided into four types, including underwater distributary channel, river mouth bar, interdistributary bay and sheet sand. At the same time, the sedimentary microfacies controlled the hydrocarbon migration and accumulation. The underwater distributary channel and mouth bar are favorable places for hydrocarbon accumulation.
出处
《辽宁化工》
CAS
2015年第4期461-462,466,共3页
Liaoning Chemical Industry
关键词
鄂尔多斯盆地
胡尖山区块
长7油层组
沉积相
Ordos basin
Hujianshan aera
member 7 in Yanchang formation
sedimentary facies
