摘要
核磁共振技术利用核磁共振现象,可用来测定地层中可动流体的含量、地层的孔隙度、渗透率、含油饱和度等参数,并可用来划分储集层类型。某油藏是储层厚度较小、纯油层比例少的低渗透砂岩油藏,为了提高开发效果,避免油井过早进入高含水期,提出了酸化改造储层的方案。利用核磁共振技术对酸化试验前后的多个岩心在可动流体含量、地层孔隙度、渗透率、含油饱和度等诸多方面进行了较全面的性能评价,并优选出适合该油田的酸化配方,在该油田进行实际应用,从而取得了较好的增油效果。
The nuclear magnetic resonance technique can measure the parameter about the content of mobile liquid、prosity and permeability of layer、oil saturation,etc.by using the nuclear magnetic resonance phenomenon,it also can divide the reservoir.The low permeability sandstone reservoir has little proportion of pure oil,and in order to increase the oilfield development effect and not to enter the high water cut period too early,the program of acid treatment formation is put forward.The formation is evaluated completely by making use of the nuclear magnetic resonance technique,the acidizing directions suit for the oil-field formulation is selected,good result by experimenting in oil-field is dotained.
出处
《新疆石油天然气》
CAS
2006年第3期69-71,76,共4页
Xinjiang Oil & Gas
关键词
核磁共振
低渗透
砂岩油藏
酸化
Nuclear magnetic resonance
low permeability
sandstone reservoir
acidizing
