摘要
为了研究扶余油田进入高含水阶段后储层参数变化规律,在该油田检24和检25两口井的不同层位选取具有对比性的岩芯共12块。根据测井解释渗透率,将岩芯按高、中、低渗层位分组。分别对测定的油水相对渗透率曲线、储层孔渗参数及孔喉结构变化进行了研究。对实验结果分析发现,经过长期水驱开发,储层油水相渗曲线,两相区变宽,水相相渗端点值变高,储层孔隙度和渗透率都有所增大。该研究成果对目前油田高含水、高采出阶段评估油田开发潜力,确定下一步挖潜方向具有重要意义。
were selected To get the law of the changes from different layers in well J24 three groups depending on meability curves, and the c in reservoir parameters of Fuyu oil field, and well J25 in the oil fieid. These rock the permeability Of the rock samples （high ／medium ／low）. hanges 12 blocks of rock samples samples were divided into The oil-water relative per- of reservoir porosity, permeability parameters and pore structure are studied. The results show that： after long-term water flooding, the two-phase region of the oil-water relative permeability curves expands, the water phase relative permeability endpoint value becomes higher, and the porosity and permeability of the reservoir increase. The research results will be successfully applied to make the development and adjustment projects, select routine measures and design project for enhancing oil recovery of the oilfield during high water cut production stage.
出处
《科学技术与工程》
北大核心
2013年第14期3846-3850,共5页
Science Technology and Engineering
基金
中国石油股份公司项目(101012kt2034001b34)资助
关键词
水驱开发
相对渗透率
物性变化
储层评价
waterflooding relative permeability changes in physical properties reservoir evaluation
