摘要
依据铸体薄片、压汞和驱替资料,运用数理统计、分形几何和灰色关联等方法,对陈堡油田阜一段和阜三段2套砂岩储层的微观孔隙特征和微观非均质性及其对驱油效率和采收率的影响进行分析。结果认为,大孔隙喉道决定了储层的渗透性,而渗透率并不完全决定驱油效率,孔隙和喉道的均匀程度在一定程度上对油层的驱油效率和油田开发效果影响更大。研究结果为油层改造、提高开发效果和采收率奠定了基础。
Microscopic pore characteristics and heterogeneity and their influences on oil displacement efficiency and recovery factor are analyzes for E1f1 and E1f3 sandstone reservoirs in Chenbao Oilfield according to cast thin section,mercury penetration and displacement data by using methods of mathematical statistics,fractal geometry and gray correlation.It is believed that large pore throat decides reservoir permeability,and permeability is not a solely decisive factor of oil displacement efficiency.The degree of uniformity of pore and throat is more influential to oil displacement efficiency and development response.The result of this study provides basis for reservoir stimulation and enhancing development efficiency and recovery factor.
出处
《特种油气藏》
CAS
CSCD
2008年第1期21-24,共4页
Special Oil & Gas Reservoirs
基金
中国石化“十条龙”科技攻关项目“复杂断块油田提高采收率技术研究”部分研究成果(P98025)
关键词
微观孔隙
非均质性
孔隙结构
分形几何
灰色关联
陈堡油田
microscopic pore
heterogeneity
pore structure
fractal geometry
gray correlation
Chenbao Oilfield
