典型无机盐对API-G类油井水泥性能的影响

Effect of typicalInorganic salton performance of API class G Oil Well cement

国内油田盐膏层固井质量难以保证,主要原因之一是固井水泥浆被盐膏层中盐离子污染,导致其强度和胶结质量变差。通过对照实验,研究了典型无机盐在不同浓度下对API-G类油井水泥物理性能的影响,并对影响机理进行了分析,提出盐膏层固井水泥的改性建议。

It is hard to ensure the quality of cementing on carbonate formation in the domestic oil fields,the slurry is polluted by ions in the carbonate formation is one of the main reasons,which causes poor oil well cement strength and bonding quality.Controlled trials are carried out to research the effect of typical inorganic salts on the physic performance of API class G oil well cement,and analysis of the mechanism are also did,then some suggestions are given on cement modification in this paper.