岩性油气藏 ›› 2015, Vol. 27 ›› Issue (5): 1–5.doi: 10.3969/j.issn.1673-8926.2015.05.001

• 油气地质 •    下一篇

单一河口坝砂体规模的定量表征

李少华1,胡晓玲1,王 军2,宋道万2,史敬华2   

  1.  1. 长江大学 地球科学学院,武汉 430100 ; 2. 中国石化胜利油田分公司地质科学研究院,山东 东营 257015
  • 出版日期:2015-09-26 发布日期:2015-09-26
  • 作者简介:李少华( 1972- ),男,教授,博士生导师,主要从事储层表征与建模方面的教学与科研工作。 地址:( 430100 )湖北省武汉市蔡甸区大学路 111 号长江大学地球科学学院。 E-mail : 534354156@qq.com 。
  • 基金资助:

    国家自然科学基金“点坝砂体内部非均质性的层次建模法”(编号: 41272136 )和国家重大科技专项“储层内部结构建模软件研制”(编号: 2011ZX05011-001 )联合资助

Quantitative characterization of single mouth bar

Li Shaohua1, Hu Xiaoling1, Wang Jun2, Song Daowan2, Shi Jinghua2   

  1.  1. School of Geosciences , Yangtze University , Wuhan 430100 , China ; 2. Geology Scientific Research Institute ,Shengli Oilfield Company , Sinopec , Dongying 257015 , Shandong , China
  • Online:2015-09-26 Published:2015-09-26

摘要:

以胜坨油田沙二段 8 砂组为例,综合应用水槽模拟实验和现代沉积的测量结果对辫状河三角洲河口坝内部构型进行了深入分析,并重点对河口坝长宽比定量规模进行了研究。 水槽模拟实验统计表明,模拟的研究区河口坝长 45~210 cm ,宽 30~150 cm ,长度与宽度具有较好的相关性。 现代沉积的测量结果也说明了河口坝的长度与宽度具有较好的相关性。 综合水槽模拟实验与现代沉积测量的结果,建立了研究区单一河口坝长宽比经验公式。 利用该公式可以指导研究区精细河口坝构型解剖,辅助判断单一河口坝边界,为建立三角洲前缘河口坝精细三维地质模型提供了依据。

关键词: 砂岩侵入体, 岩心特征, 古近系, 西湖凹陷

Abstract:

Taking the 8th sand group of the second member of Shahejie Formation in Shengtuo Oilfield as an example, this paper analyzed the configuration of braided river delta mouth bar by using physical simulation experiment and measurement result of modern sedimentation, and studied the ratio of length to width of mouth bar. The results of physical simulation experiment show that the length of mouth bar varies from 45 cm to 210 cm and the width of mouth bar ranges from 30 cm to 150 cm, the ratio of length to width of mouth bar shows some correlation, as the same with the result of modern sedimentation measurement. At last, the empirical formula of the ratio of length to width of single mouth bar was established with combination consideration of physical simulation of sedimentation and measurement result of modern sedimentation. This formula can guide the study of reservoir architecture of mouth bar and the boundary identification of single mouth bar, providing support for establishment of fine 3D model of mouth bar.

Key words: sand injectites, core feature, Paleogene, Xihu Sag

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