岩性油气藏 ›› 2015, Vol. 27 ›› Issue (5): 144–148.doi: 10.3969/j.issn.1673-8926.2015.05.023

• 油气地质 • 上一篇    下一篇

鄱阳湖浅水三角洲分支河道分布特征

孙廷彬1,2,3,国殿斌2,李中超2,王 玲1,2,4,尹楠鑫1,2,李胜玉5   

  1.  1. 中国石化中原油田分公司 博士后工作站,河南 濮阳 457000 ; 2. 中国石化中原油田分公司勘探开发研究院,河南 濮阳 457000 ; 3. 中国石油大学(北京) 博士后流动站,北京 102249 ; 4. 西北大学 博士后流动站, 西安 710127 ;5. 成都理工大学 沉积地质研究院,成都 610059
  • 出版日期:2015-09-26 发布日期:2015-09-26
  • 作者简介:孙廷彬( 1985- ),男,博士,工程师,主要从事储层地质学与油藏描述方面的研究工作。 地址:( 457000 )河南省郑州市郑东新区东风南路与祥盛街交叉口绿地原盛国际 2 号楼 3 单元。 E-mail : stbchina@126.com 。
  • 基金资助:

    河南省博士后科研资助项目“濮城油田沙二下亚段储层精细表征技术”(编号: 2014101 )、国家重大科技专项“东濮凹陷油气富集规律与增储领域”(编号: 2011ZX05006-004 )与“大型油气田及煤层气开发”(编号: 2011ZX05006-004 )联合资助

Distribution characteristics of branch channel of shallow delta in Poyang Lake

Sun Tingbin1,2,3, Guo Dianbin2, Li Zhongchao2, Wang Ling1,2,4, Yin Nanxin1,2, Li Shengyu5   

  1.  1. Postdoctoral Work Station , Sinopec Zhongyuan Oilfield Company , Puyang 45700 , Henan , China ; 2. Research Institute of Exploration and Development , Sinopec Zhongyuan Oilfield Company , Puyang 457000 , Henan , China ; 3. Postdoctoral Center ,China University of Petroleum , Beijing 102249 , China ; 4. Postdoctoral Center , Northwest University , Xi ’ an 710127 , China ;5. Institute of Sedimentary Geology , Chendu University of Technology , Chendu 610059 , China
  • Online:2015-09-26 Published:2015-09-26

摘要:

为揭示浅水三角洲分支河道砂体储层平面展布规律,优选赣江中支入鄱阳湖形成的现代沉积三角洲为代表,利用高清卫星图像测量,统计了河道的分叉角度、分叉频率及河道的弯曲度,并设计了一系列垂直于物源方向的弧形剖面进行分支河道的宽度变化规律研究。结果表明,浅水三角洲分支河道的枝状分叉角度多在 30°左右,且随着三角洲的推进,河道分叉的频率下降;河道宽度整体呈减小趋势,且与河道分叉有密切关系:河道宽度减小速率随河道分叉频率的降低而减小;河道接近分叉口过程中宽度明显增大,平均增幅达 108%;分叉后的河道宽度明显小于分叉前的主干河道,平均减幅为 49%。

关键词:  储集性能, 胶结作用, 溶蚀作用, 东河塘组, 塔里木盆地

Abstract:

Contemporary delta in Poyang Lake was preferred to quantitatively characterize the sand body distribution rule of branch channel of shallow delta. The branching angle, branching frequency and bending of channel were measured by high-definition satellite pictures. The width variation of the branch channel was studied by intensive sampling on the base of a series of parallel curved profiles vertical to the provenance direction. The result shows that the channel is a dendritic shape with the branching angle being about 30°, and the branching frequency decreases with the advancing of the delta. The channel width has a decreasing tendency with the advancing of the river, and the variation is serious influenced by the branching process. The channel width decreasing rate decreases with the decreasing of the branching frequency; around the branching location, the channel width increases about 108% in average; the branch channel decreases about 49% compared to the width of pre-branching channel.

Key words: reservoir properties, cementation, dissolution, Donghetang Formation, Tarim Basin

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