测井技术2018，Vol.42Issue(2)：186-192,7.DOI:10.16489/j.issn.1004-1338.2018.02.011
高盐油藏开发期饱和度计算的矿化度驱替-交换模型
Petrophysical Model of Salinity Displacement-ion Exchange for Saturation Calculation During the Development of High Salinity Reservoirs
屈信忠 1唐文生 2姜明忠 1丁晓军 1廖春 1宋祖勇 1刘青文1
作者信息
- 1. 中国石油青海油田公司勘探开发研究院,甘肃敦煌736202
- 2. 北京泰姆泰克石油科技开发有限公司,北京昌平100220
- 折叠
摘要
Abstract
The salinity change of mixed liquid in reservoir is controlled by injection water displacement and ion exchange during water-flooding.In the initial stage of flooding,the change is mainly affected by the proportion of injected wate in pore volume;with the increase of water injection time and water injection volume,the degree of ion exchange between injected water and primary water is also increasing.The displacement-exchange theory model of salinity is proposed for the first time,and the relationship charts between the salinity of the mixed fuilds and the current oil saturation,the salinity of primary water,as well as the salinity of the injected water are established.Moreover,the change rule of resistivity during waterflooding is also simulated. Based on the theoretical model,charts and electrical logging,iterative computation or joint problem-solving method is used to eliminate the multi-solution problem in the calculation of the remaining oil saturation,w hich improve the calculation accuracy of saturation and salinity.T his method has achieved good results in the interpretation of w ater flooded layers in multiple large and medium-sized reservoirs.关键词
剩余油饱和度/高盐油藏/水淹/混合液矿化度/注水驱替/离子交换/岩石物理模型Key words
remaining oil sauration/high salinity reservoirs/water flooded/mixture fluid salini-ty/w aterflood displacement/ion exchange/petrophysical model分类
天文与地球科学引用本文复制引用
屈信忠,唐文生,姜明忠,丁晓军,廖春,宋祖勇,刘青文..高盐油藏开发期饱和度计算的矿化度驱替-交换模型[J].测井技术,2018,42(2):186-192,7.
