分散型速溶黄原胶DIXG的制备与评价  

Preparation and Evaluation of a Dispersible Instant Xanthan Gum

作　　者：赵志强[1] 苗海龙[1] 易勇[1] 

机构地区：[1]中海油田服务股份有限公司油化研究院

出　　处：《钻井液与完井液》2015年第2期26-28,99,共3页Drilling Fluid & Completion Fluid

基　　金：中国海洋石油总公司项目(CNOOC-KJ125 ZDXM 12 LTD00YF2011-01)

摘　　要：以烷基金属有机物NA为改性剂,以无水乙醇为分散介质,在酸性条件下进行了黄原胶的疏水改性,同时对所制备分散型速溶黄原胶(DIXG)进行了分散性能、溶解性能和流变性能的评价。评价实验结果表明,DIXG的分散性和溶解速度明显优于国内的分散型黄原胶产品,而流变性基本不变,不降低黄原胶的使用性能。Xanthan gum was hydrophobically modified using NA,an alkylated organometallic compound,as modifying agent,and absolute ethanol as dispersion medium under acidic condition.The prepared dispersible instant xanthan gum,DIXG,was evaluated for its dispersing capacity,dissolubility and rheology.Experiment results showed that DIXG has dispersing capacity and dissolubility that are better than dispersible xanthan gum produced in China,with its rheology being the same as other samples.

关 键 词：黄原胶 分散 速溶 改性 有机金属 

分 类 号：TE254.4[石油与天然气工程—油气井工程]