测井技术2011，Vol.35Issue(1)：31-35,5.
基于三水模型的储层分类方法评价低孔隙度低渗透率储层
Reservoir Classification Method Based on Three Water Model to Evaluate Low Porosity and Low Permeability Reservoir
摘要
Abstract
Due to the various pore types and complex pore configurations, it is difficult to evaluate low porosity and low permeability reservoir. Slight variation range of porosity often causes large variation range of permeability. According to the shapes of capillary pressure curves of core samples, firstly, the surveyed reservoirs are classified into four types; then calculated are free porosity, micro-porosity and clay porosity in the light of pore radius size; then cast is the percent of each porosity in the total porosities into triangular diagram of porosity classifications to achieve the place of each reservoir on the triangular diagram; the relationships between porosity and permeability in each reservoir are established on the basis of petrophysical data of the core samples;in the end, three types of porosities are obtained from the three water model and are cast into the triangular diagram, from which continual reservoir classification can be gained; then corresponding permeability equations are chosen to compute permeabilities and evaluate reservoir comprehensively. The method is satisfactory in log application.关键词
测井解释/低孔隙度/低渗透率/储层分类/三水模型/毛细管压力Key words
log interpretation, low porosity, low permeability, reservoir classification, three-water model, capillary pressure分类
天文与地球科学引用本文复制引用
张丽华,潘保芝,李宁,张冰,边会媛,韩雪..基于三水模型的储层分类方法评价低孔隙度低渗透率储层[J].测井技术,2011,35(1):31-35,5.基金项目
国家自然科学基金(50874057)资助 （50874057）
