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Modified corn starch for drilling of oil wells
ZHOU Ya-jun, WANG Shu-jie, YU Qing-yu, LIU Wei, ZHANG Lu
吉林大学学报(工学版). 2003, (3):
64-67.
Modified corn starch mixed with vegetable gum XDF used for drilling of oil wells is described in this paper.The physical and chemical properise,usage and mixing ratio of this modified starch are also given.Meanwhile,the ingredients of drilling mud and the factors affecting the colloid are studied.This kind of mixture has the characteristics of high viscosity,sufficient fluidity,low friction resistance and low residue,and can give the best performance under 80℃.
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