新疆石油地质

新疆石油地质 ›› 2007, Vol. 28 ›› Issue (2): 139-142.

• 油气勘探 • 上一篇    下一篇

大民屯凹陷东侧斜坡带潜山古地貌与储集层特征

吴东胜, 徐贞美, 陈恭洋, 邓礼发   

  1. 长江大学 地球科学学院, 湖北 荆州 434023
  • 收稿日期:2006-07-24 修回日期:2006-09-12 出版日期:2007-04-01 发布日期:2020-07-31
  • 作者简介:吴东胜(1967-), 男, 湖南长沙人, 副教授, 博士, 石油地质,(Tel) 13986659880(E-mail) w_ds@163.com

The Buried Hill Paleogeomorphology and Reservoir Characteristics in Slope Belt of Eastern Damintun Sag

WU Dong-sheng, XU Zhen-mei, CHEN Gong-yang, DENG Li-fa   

  1. Institute of Geosciences, Yangtze University, Jingzhou, Hubei 434023, China
  • Received:2006-07-24 Revised:2006-09-12 Online:2007-04-01 Published:2020-07-31

PDF

197

摘要： 大民屯凹陷潜山古地貌是基底块断差异升降和风化剥蚀共同作用的结果,它不但控制着潜山残留地层的分布,也影响了上覆房身泡组和沙四段地层的分布。在详细分析潜山地层接触关系的基础上,应用房身泡组和沙四段地层厚度构成及地震资料预测,其存在4类参数组合:Ⅰ类组合反映潜山古地形隆起区,出露岩性为太古界变质岩;Ⅱ类组合反映潜山古地形洼陷区,出露岩性为中生界砂、砾岩;Ⅲ、Ⅳ类组合则反映潜山古地形斜坡带,出露岩性为元古界碳酸盐岩。平面上Ⅰ、Ⅲ、Ⅳ类组合的分布区为储集层发育的有利地区。

关键词: 大民屯凹陷, 潜山, 古地貌, 储集层

Abstract: The buried hill paleogeoomorphology in Damintun sag is resulted from both basement fault block differential lift and weathering erosion. It controls the distribution of remained buried hill strata and affects the distribution of overlying Fangshenpao formation and Sha-4 member. This paper analyzes in detail the contact relationship among the buried hill strata and predicts from the thickness and seismic data of Fangshenpao formation and Sha-4 member that there exist four combinations of lithologic parameters: Type I represents the Archaeozoic metamorphic rocks, reflecting the uplift area of buried hill paleogeomorphology; Type II the Mesozoic sandstone and conglomerate, reflecting the depressed area; Type III and Type IV reflect its slope belt with lithology of Proterozoic carbonate rocks. In plane, Type I, III and IV combinations are favorable areas of reservoir development.

Key words: Damintun sag, buried hill, paleogeomorphology, reservoir rock

中图分类号: