摘要
冲积扇的类型受气候、构造和沉积等多方面因素控制,不同类型冲积扇的沉积特征对于储层的有效开发影响程度不同.多数学者认为,冲积扇可以划分为湿润扇和干旱扇两大类,准噶尔盆地西北缘克下组冲积扇属于干旱扇.但是,岩石学、沉积组分、沉积构造、结构成熟度、沉积旋回特征及扇体规模的分析表明：准噶尔盆地西北缘克下组冲积扇属于湿润型向干旱型过渡的中间类型.
The types of alluvial fans are influenced and controlled by many factors such as climate, tectonics, dep- osition and so forth the characteristics of different types of the fans possess various impacts on the effective devel- opment of the reservoirs. A lot of scholars consider that the alluvial fans can be divided into two kinds--wet and ar- id alluvial fans. The alluvial fan of Lower Karamay Formation in the northwestern margin of Zhunger Basin belongs to an arid alluvial fan. But the analyzed results of the petrology, deposited components, sedimentation structures, structural maturity, characteristics of the sedimentary cycles and the fan scales show that the type of the alluvial fans of the above formation belongs to the intermediate type transformed from the wet to the arid.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2014年第2期6-9,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
国家科技重大专项(2011ZX05016-006)
关键词
准噶尔盆地西北缘
克下组
湿润扇
干旱扇
the northwestern margin of Zhunger Basin
Lower Karamay Formation
wet alluvial fan
arid alluvial fan
