欢迎访问现代地质!

现代地质 ›› 2006, Vol. 20 ›› Issue (3): 465-472.

• 石油地质学 • 上一篇    下一篇

松辽盆地三肇地区扶、杨油层储集层孔隙结构及评价

姜洪福1,2,陈发景1,张云春2,雷友忠2   

  1. 1中国地质大学 能源学院,北京100083; 2大庆油田公司,黑龙江 大庆163514
  • 收稿日期:2005-09-10 修回日期:2006-03-22 出版日期:2006-03-20 发布日期:2006-03-20
  • 作者简介:姜洪福,男,高级工程师,博士研究生,1965年出生,石油地质学专业,主要从事油田开发地质工作。

The Pore Texture and Evaluation of Fu-Yang Oil Reservoirs in the Sanzhao Area of Songliao Basin

JIANG Hong-fu1,2, CHEN Fa-jing1, ZHANG Yun-chun2, LEI You-zhong2   

  1. 1School of Energy Resources, China University of Geosciences, Beijing100083,China;
    2Daqing Oilfield Company Ltd., PetroChina, Daqing, Helongjiang163514,China
  • Received:2005-09-10 Revised:2006-03-22 Online:2006-03-20 Published:2006-03-20

摘要:

根据岩心、岩石图像、毛细管压力曲线分析和核磁共振测量T2弛豫时间曲线等方法,对三肇地区白垩系泉头组扶、杨油层低渗透储集层的孔隙结构进行评价及综合研究,讨论3个问题:(1)储层中孔隙度和渗透率的关系;(2)孔隙结构的微观特征及其对渗透率的影响;(3)储层的渗滤能力、可动流体饱和度及储层评价。结果表明:低渗透砂层中储层物性的好坏以及流体在储层中的可流动程度取决于孔隙数量多少、孔喉大小、几何形态、分布和连通程度。

关键词: 低渗透储层, 微孔隙度, 孔隙结构, 排驱压力, 可动流体饱和度

Abstract:

Based on methods of core analyses, petrographic images, capillary pressure curves and T2 relaxation time curves of nuclear magnetic resonance, the microscopic characteristics of pore texture and evaluation for the Fu-Yang oil reservoirs are comprehensively studied.In this paper, three topics are discussed as follows:(1)Physical character of reservoirs, and relation between porosity and permeability;(2)The microscopic characteristics of pore texture and its influence upon porosity and permeability;(3)Permeable ability, saturation of mobile fluid and evaluation of the Fu-Yang oil reservoirs. It is summarized that the development of favorable or impermeable reservoirs and saturation of mobile fluid in low permeable sands is controlled by these factors, such as the amount of pores, pore-throat size, shape, distribution,and connectivity of pores.

Key words: low-permeable reservoir, microporosity, pore texture, driving pressure, saturation of mobile fluid

中图分类号: