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现代地质 ›› 2011, Vol. 25 ›› Issue (5): 931-937.

• 石油地质学 • 上一篇    下一篇

鄂尔多斯盆地苏里格气田盒8气藏含水特征及气水分布主控因素分析

 张海涛1, 2 , 时卓2 , 任战利1, 李美2   

  1. 1西北大学 地质学系, 陕西 西安710069;2长庆油田公司 勘探开发研究院,陕西 西安710018
  • 收稿日期:2011-04-15 修回日期:2011-09-10 出版日期:2011-10-26 发布日期:2011-11-03
  • 作者简介:张海涛,男,工程师,博士研究生,1977年出生,地球探测与信息技术专业,主要从事测井地质综合研究及测井技术应用等方面的工作。Email:zhanght_cq@petrochina.com.cn。

Characteristics of Water Bearingformation and GasWater Distribution Control Factors in Gas Reservoir He 8 of Sulige Gasfield, Ordos Basin

 ZHANG  Hai-Chao-1, 2  , SHI  Zhuo-2 , LIN  Zhan-Li-1, LI  Mei-2   

  1. 1Department of Geology, Northwest University, Xian,Shaanxi710069, China;
    2Research Institute of Exploration and Development, Changqing Oilfield Company, Xian,Shaanxi710018, China
  • Received:2011-04-15 Revised:2011-09-10 Online:2011-10-26 Published:2011-11-03

摘要:

鄂尔多斯盆地苏里格气田是低渗透砂岩气藏的典型代表,主力含气层盒8段储层物性差、非均质性强、气水关系复杂。根据储层非均质性、孔喉结构配置关系将盒8段储层水分为吸附水、毛细管水、自由水3类, 其中吸附水主要吸附于岩石颗粒表面;毛细管水存在于非均质性较强储层的毛细管中;自由水发育在孔隙结构和物性较好的储层。根据区域生烃强度、储层非均质性及微观孔隙结构特征,分析了控制气水分布的主要因素:生烃强度控制气水分布总格局,储层横向非均质性控制储层局部气水分布,微观孔隙结构控制地层水赋存状态。

关键词: 气层含水特征, 气水分布, 主控因素, 苏里格气田, 鄂尔多斯盆地

Abstract:

The gas reservoir in Sulige gasfield, Ordos Basin, is a typical lowpermeability tight sandstone gas reservoir. The major gas reservoir He 8 is characterized by bad physical property, strong anisotropy and complicate gaswater distribution. With the tested and explored data, the water is divided into three types as following, adsorbed water and capillary water and free water. The adsorbed water mainly exists in the surface of rock particles; the capillary water exists in the capillary tubes of strong anisotropy reservoirs; the free water exists in the reservoirs with good pore structure and physical property. According to the hydrocarbongenerating intensity and heterogeneity, the gaswater distribution control factors were analyzed: the hydrocarbongenerating intensity dominates the macro distribution of gas and water; the reservoir heterogeneity controls the partial distribution; the micropore structure controls the water occurrence situation.

Key words: characteristic of waterbearing gas zone, gaswater distribution, main control factor;Sulige gasfield;Ordos Basin