深水水道坡度与曲率的定量关系及控制作用——以西非Rio Muni盆地为例

被引:8
作者
刘新颖 [1 ,2 ]
于水 [1 ]
胡孝林 [1 ]
陶维祥 [1 ]
机构
[1] 中海油研究总院
[2] 中国石油大学博士后流动站
关键词
深水水道; 坡度; 曲率; 定量关系; 充填结构; 沉积;
D O I
10.13278/j.cnki.jjuese.2012.s1.016
中图分类号
P618.13 [石油、天然气];
学科分类号
0709 ; 081803 ;
摘要
选取受构造活动影响较弱的Rio Muni盆地近现代深水水道为研究样本,分段测量各水道的底床坡度和曲率,并进行相关性分析。研究认为:深水水道底床坡度与曲率呈幂函数关系,水道曲率随着坡度的增大而减小;但不同坡度条件下曲率变化速率表现出明显的差异——一般随坡度的减小,单位坡度变化范围内,曲率的增幅加大。坡度对水道曲率的控制作用主要体现在水道切谷底形和内部充填结构2个方面,其中对后者的影响作用最为显著。但实质上,坡度是通过对水道内部沉积物能量的控制,进而影响了其侵蚀及充填能力,最终使水道平面形态和内部充填结构发生变化。
引用
收藏
页码:127 / 134
页数:8
相关论文
共 7 条
[1]  
Seismic expression of channel outcrops: Offset stacked versus amalgamated channel systems[J] . A.M. Schwab,B.T. Cronin,H. Ferreira.Marine and Petroleum Geology . 2007 (6)
[2]  
Deep-water and fluvial sinuous channels—Characteristics, similarities and dissimilarities, and modes of formation[J] . V. Kolla,H.W. Posamentier,L.J. Wood.Marine and Petroleum Geology . 2007 (6)
[3]  
Sinuous deep-water channels: Genesis, geometry and architecture[J] . Russell B. Wynn,Bryan T. Cronin,Jeff Peakall.Marine and Petroleum Geology . 2007 (6)
[4]   Turbidite channel reservoirs - Key elements in facies prediction and effective development [J].
Mayall, Mike ;
Jones, Ed ;
Casey, Mick .
MARINE AND PETROLEUM GEOLOGY, 2006, 23 (08) :821-841
[5]  
Central Atlantic margin basins of North West Africa: Geology and hydrocarbon potential (Morocco to Guinea)[J] . Ian Davison.Journal of African Earth Sciences . 2005 (1)
[6]  
Lateral accretion packages (LAPs): an important reservoir element in deep water sinuous channels[J] . Vitor Abreu,Morgan Sullivan,Carlos Pirmez,David Mohrig.Marine and Petroleum Geology . 2003 (6)
[7]  
Late Quaternary channel avulsions on the Danube deep-sea fan, Black Sea[J] . I Popescu,G Lericolais,N Panin,H.K Wong,L Droz.Marine Geology . 2001 (1)