摘要
从取样、仪器及分析评价三方面较系统地分析了注入水水质中粒径测量的误差来源,强调了控制注入水中悬浮物颗粒直径对油层保护的重要性,提出在粒径测量时,应采用严格洁净的密闭取样方法,严格控制仪器操作环境的必要性,用实例证实了库尔特(Coulter)仪器和哈克-洛伊克(HIAC/ROYCO)仪器,对非球状颗粒水样测量的不可比性,并推荐在石油行业水质检测中使用哈克-洛伊克仪器。对目前石油工业所使用的《碎屑岩油藏注水水质推荐指标及分析方法》(SY5329-88)标准进行了分析,认为该标准仅用粒子组分百分比评估水质是不全面的,应增加粒子组分累加最小起点粒径及每毫升粒子浓度,以全面评价水质。
This article systematically analyses the source of gauging errors of grain size in water quality of water flood, puts forward that in grain size gauging, a strict, clean and close sampling method must be taken and it is necessary to control the instrument operation rigorously. The article analyses SY5329-88 Standard, currently used in petroleum industry, and deems that in order to evaluat water quality in an all-round way two indxes should be added, that is the smallest starting grain size of particle component summation and the particle amount per mL.
