摘要
为了揭示储层非均质变化规律 ,结合野外边滩地貌特征、沉积物类型、沉积构造、粒度分析及室内资料分析 ,运用现代沉积学的理论和方法 ,将饮马河大榆树林现代沉积边滩划分为河床滞留、下点坝、上点坝、滩脊、滩槽、串沟 6个流动单元 ,详细分析并论述了这些流动单元的沉积特征 .结果表明 ,饮马河大榆树林现代边滩的沉积特征为发育滩脊、滩槽和点坝中上部为反韵律沉积 ;重矿物由下到上种数减少 ,质量分数降低 ;
In order to reveal the non-homogereous changing law of deposit layer, the deposit features of the moving unit are discussed and expounded in detail, combined with the landform feature of sidebeach of wilderness, deposit category, deposit structure, granularity analysis, reference material, and dividing modern deposit sidebeach in Dayushulin, Yinma river, based on the theory and method of modern study of deposit, the modern deposit sidebeach in the area concerned can be divided into 6 units, including channel lag deposit, lower point bar, upper point bar, beach crest, beach chute and channel ditch. The result indicates the deposit features are as follows: the middle and top of developed beach crest, beach chute and point bar are in inverse rhythm; the weighty mineral decreases and the mass percentage comes blown from bottom to top; the mass fraction of stable mineral increases.
出处
《大庆石油学院学报》
CAS
北大核心
2004年第2期15-17,共3页
Journal of Daqing Petroleum Institute
关键词
饮马河
现代沉积
边滩
流动单元
沉积特征
Yinma River
modern deposit
sidebeach
moving unit
deposit feature
