新疆石油地质 ›› 2011, Vol. 32 ›› Issue (4): 399-401.

• 油藏工程 • 上一篇    下一篇

苏里格西部盒8段地层水化学特征及其地质意义

姜文娟, 冯乔, 李颖莉, 韩波, 王千遥, 周书昌, 张洪美   

  1. 山东科技大学地质科学与工程学院,山东青岛 266510
  • 收稿日期:2010-02-23 出版日期:2011-08-01 发布日期:2020-08-19
  • 作者简介:姜文娟(1984-),女,山东阳台人,硕士,油气地质,(Tel)13698687724(E-mail)jwjapple@126.com.

Chemical Characteristics and Geological Significance of Formation Water of He-8 Member in Western Sulige Gas Field, Ordos Basin

JIANG Wen-juan, FENG Qiao, LI Ying-li, HAN Bo, WANG Qian-yao, ZHOU Shu-chang, ZHANG Hong-mei   

  1. College of Geological Sciences and Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266510, China
  • Received:2010-02-23 Online:2011-08-01 Published:2020-08-19

摘要: 苏里格气田石盒子组盒8段是气田的主力产层,其地层水矿化度为0.79~99.87 g/L,水型多为CaCl2型。在盒8段同一层段的砂体中,有独立分布的气层或水层,也有气水互层和气水同层等几种分布类型。通过119口井的试气资料及地层水化验数据的分析,绘制了地层水的矿化度图、离子含量比值分布图以及变质程度图等,最终确定了地层水性质及分布与天然气富集的关系,并预测出具有天然气勘探潜力的有利区域。

关键词: 鄂尔多斯盆地, 盒8 段, 地层水, 矿化度, 气水分布

Abstract: The He-8 member of Shihezi formation in Sulige gas field is the main production zone, with the formation water salinity of 0.79~99.87g/L and CaCl2 water type. It is found that there exists the independent distribution of gas layer or water layer in this member, and besides, there are 3 types of distribution features, including gas/water layer, interbedded gas/water layer and same gas/water layer in sand body of one interval. Through gas test data and formation water analyses from 119 wells, the formation water salinity, the ions concentration ratio distribution and metamorphosed degree are drawn. Finally, the relationship between the formation water property and distribution and the natural gas enrichment is determined, and the favorable areas with gas exploration potentials are predicted.

Key words: Ordos basin, He-8 member, formation water, salinity, gas-water distribution

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