储层物性时变规律——以濮城文51块沙二下油藏为例  

Time-varying Law of Reservoir Physical Properties——Pucheng Oilfield Wen51 Block Lower Shaer Reservoir for Example

作　　者：孙廷彬 熊运斌[3] 王玲 赵磊 王自立 王明 王志宝 刘峰刚 崔秀敏 

机构地区：[1]中石化中原油田博士后科研工作站,濮阳457000 [2]中国石油大学(北京)博士后科研流动站,北京102249 [3]中石化中原油田分公司勘探开发研究院,濮阳457000

出　　处：《科学技术与工程》2015年第36期52-55,62,共5页Science Technology and Engineering

基　　金：河南省博士后科研项目(2014101);国家科技重大专项(2011ZX05006-004);国家科技重大专项(2011ZX05006-004)资助

摘　　要：为揭示注水开发过程导致储层物性发生变化规律,实现剩余油精细研究,研究从各相带不同开发阶段物性统计分析、不同阶段临近井对比分析和室内水驱油实验三种手段,进行了储层物性时变规律的研究。结果表明:河道砂体过水倍数大,渗透率呈指数增加,早期增幅最大,后期平稳,平均增加50%;且层内存在明显的窜流通道,渗透率呈高尖峰状,最大增幅130%;前缘砂体原始物性相对较差,过流倍数小,渗透率近似线性增加,增幅小于10%;远砂砂体原始物性差,尚未发现明显储层物性变化及变化规律。In order to reveal the varying law of reservior physical in the process of water flooding,the research was taken three method： the statistical analysis of physical data from different developing period,the comparative analysis of physical data of the same faces from the adjacent well and indoor water flooding experiments. The results showed that： the channel sand body have the larggest number of flooding water,the permeability increases exponentially,it rising fast befor 100 pore volume,and the steady later. The everage rising percentage of permeability is50%,and there are a significant channeling iner layer which is high spike-like,the permeablity rise 130% for the most. For the relatively poor original permeablity,the number of flooding water in the fornt sand is small,and the rising percentage of permeability is lower than 10% with a liner trend; there were no significant changes and varying law found in sheet sand reservoir properties.

关 键 词：文51块 沙二下 三角洲前缘 物性时变规律 

分 类 号：TE122.1[石油与天然气工程—油气勘探]