摘要
在岩心观察基础上,运用地质、测井等资料,从单井相分析入手,通过连井对比剖面扩大到全区范围,研究了克拉玛依油田六区克下组的储层特征和砂砾岩展布规律。克拉玛依油田六区克下组为退积型冲积扇相沉积,六区为单一扇体的一部分。识别出克下组扇顶、扇中和扇缘亚相的分布,分析了各亚相的储层特征和砂体展布规律。研究表明,扇顶、扇中和扇缘亚相储层的总体岩性分别为砾岩、细砾岩和粗砂岩、中细砂岩。砂体的平面展布形式分别为连片状、宽带状和窄条状。
By using the core, geological, and log data, alluvial fan conglomerate reservoir sedimentary characteristics of Lower Karemary Formation in the 6th District of Karemary Oilfield were studied and the distribution patterns of sandbodies were analyzed. The results show that Lower Karcmary Formation is the alluvial fan face. The 6th District is located on a single fan. Sedimentary characteristics of each subfacies were analyzed on the basis of subfacies subdivision. The study shows that the inner fan is composed mainly of conglomerate, the middle is composed mainly of microconglomerates and gritrock, and the outer fan is composed mainly of fine sandstone. There are three distribution patterns of sandbodies：sheet pattern in inner fan, broad band pattern in middle fan and narrow band pattern in outterfan. The study of sedimentary characteristics and distribution patterns of sandbodies of each subface offer some geological guidelines for oilfield development.
出处
《科技导报》
CAS
CSCD
北大核心
2009年第19期52-56,共5页
Science & Technology Review
关键词
冲积扇
泥石流
辫流水道
沉积特征
克拉玛依油田
alluvial fan
debris flow
braided river
sedimentary characteristics
Karemary Oilfield
