压汞曲线在特低渗油藏储层分类中的应用  

Application of the Capillary Pressure Curve in Classification of Low Permeability Reservoirs

作　　者：王维喜[1] 曹天军[1] 朱海涛[2] 

机构地区：[1]陕西延长石油集团有限责任公司,延安716000 [2]西安石油大学,西安710065

出　　处：《重庆科技学院学报（自然科学版）》2010年第3期18-20,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金："十一五"国家科技支撑计划项目(2007BAB17B05)

摘　　要：根据实验分析,结合录井、试采等成果,对南泥湾油田长6储层进行分类研究和综合评价,认为长6储层以低孔-特低渗为主,微观结构以中孔细-小孔细组合为主,孔喉结构特征对储层渗透性有决定性影响。储层渗流能力主要由比较大的孔隙提供,对本区长6储层的评价表明,本区长6储层可以分为Ⅰ、Ⅱ、Ⅲ类,并以Ⅰ类、Ⅱ类储层为主,其中Ⅰ类储层的孔喉结构优于Ⅱ类,渗流能力也好于Ⅱ类。Based on experimental analysis, combined with feedbacks of well logging and test production, analytical study and overall evaluation of Chang6 reservoirs are carried out. The porosity and permeability distributional characteristics of Chang6 reservoirs show that the reservoir beds are mainly composed of low-porosity and special low-permeability type. Its microscopic textures are mainly mid-micro porosity. The pore throat feature has crucial influence on reservoir is permeability, and percolation capability of reservoir provided by major pore throat. Chang6 reservoirs beds may be divided 3 major types of Ⅰ, Ⅱand Ⅲ. The Ⅰand Ⅱare mainly types. The type Ⅰis better than type II on pore throat structure and the percolation capability.

关 键 词：压汞曲线 低渗透油藏 长6储层 分类评价 

分 类 号：TE122[石油与天然气工程—油气勘探]