石油与天然气地质 ›› 1994, Vol. 15 ›› Issue (4): 341-349.doi: 10.11743/ogg19940411

• 论文 • 上一篇    下一篇

双河油田北块两个层系的储层孔隙结构特征

赵跃华   

  1. 河南石油勘探局勘探开发研究院, 南阳473132
  • 收稿日期:1992-10-15 修回日期:1994-09-06 出版日期:1994-12-25 发布日期:2012-01-16

PORE-STRUCTURE CHARACTERISTICS OF RESERVOIRS IN NORTH PART OF SHUANGHE OILFIELD

Zhao Yuehua   

  1. Research Institute of Petoleum Exploration and Development, Henan Petroleum Exploration Bureau
  • Received:1992-10-15 Revised:1994-09-06 Online:1994-12-25 Published:2012-01-16

PDF (PC)

488

被引次数

1

摘要：

双河油田北块三采试验区块Ⅱ4-6、Ⅳ1-4层系储层岩石成分成熟度及结构成熟度均低,自生矿物及粘土矿物种类多,物性及孔隙结构参数变化大,储层微观非均质性及孔喉两极分化严重,微孔隙发育;储层孔隙结构在横向上变化大,微观油水分布形态多样,导致驱油效率低,开发难度大.储层以Ⅱ、Ⅲ类为主,Ⅱ4-6层系条件较差属中低储集类型,Ⅳ1-4层系储层条件较好为中等储集类型.

关键词: 孔隙结构, 微观非均质性, 储层评价, 驱油效率, 双河北块, Ⅱ4-6、Ⅳ1-4层系

Abstract:

Both the compositional maturity and structural maturity of Ⅱ4-6 and Ⅳ1-4 reservoir rocks in the north Part of Shuanghe oilfield are relatively low, and the types of authigenic and clay minerats are various, pete-structural diameters and the size of pore-throats varies distinctly, microscopic anisotropy.is high and micro-potes developed wed. The considerable variation of reservoir POre structures in lateral diredion and Plenty of microdistributive pattern of oil and water lead to low oil-expulsion. The reservoirs mentioned above are predominatly type-Ⅱ and type-Ⅲ ones.