石油与天然气地质 ›› 1995, Vol. 16 ›› Issue (2): 178-183.doi: 10.11743/ogg19950212

• 论文 • 上一篇    下一篇

歧北凹陷舌状砂体沉积模拟实验

张春生1, 刘忠保1, 曹跃华1, 赖志云1, 高玉华2, 张服民2   

  1. 1. 江汉石油学院, 湖北荆沙, 434102;
    2. 天津大港油田研究院, 天津, 300280
  • 收稿日期:1995-02-25 出版日期:1995-06-25 发布日期:2012-01-16
  • 基金项目:

    中国石油天然气总公司资助

DEPOSITIONAL SIMULATION OF LOBATE SAND BODY IN QIBEI SAG

Zhang Chunsheng1, Liu Zhongbao1, Cao Yaohua1, Lai Zhiyun1, Gao Yuhua2, Zhang Fumin2   

  1. 1. Jiaughan Petroleum institute, Jingsha, Hubei;
    2. Research Institute of Dagang Oilfield, Tianjin
  • Received:1995-02-25 Online:1995-06-25 Published:2012-01-16

PDF (PC)

842

被引次数

16

摘要：

模拟实验表明,沙体的形态由第1期的叶状变为第4期的舌状,与歧北凹陷沙一段舌状砂体形态类似。沉积体呈溯源退缩势态,厚度与宽厚比渐次减小。以第2期沙层延伸远、分布广,与第1、第3期沙层沟通,构成统一的储集空间。第4期沙层呈孤立的透镜体,被包围在泥质沉积之中,储集性能较差。

关键词: 模拟实验, 歧北凹陷, 舌状沙体

Abstract:

The result of simulation test shows that the shape of the sand body formed in the test changed from leaf shape of the first stage into lobate shape of the fourth stage.This is very similar to the lobate sand body of Sha-1 member in Qibei Sag.The first stage depositional body of the simulation test showed degradation tendency towards source area,the ratio of its thickness to its width reduced graduallys the second stage sand bed distributed extensively,and it connected with the first and the third beds, formed a unified reservoir;the fourth stage sand bed was an isolated lenticle surrounded by argillaceous sediments,its reservoiring property is relatively poor.