刚果奎卢盆地光卤石矿床钻井施工技术  

Drilling Technology of Carnallite Deposits in Kouilou Basin, Congo

作　　者：唐孟龙 龙雪莲[1] 程现峰 Tang Menglong;Long Xuelian;Cheng Xianfeng(Team,Bureau of Geology and Mineral Exploration and Development of Hunan Province,Hunan,Hengyang,421001)

机构地区：[1]湖南省地质矿产勘查开发局四一七队,湖南衡阳421001

出　　处：《中国井矿盐》2021年第6期9-11,29,共4页China Well and Rock Salt

摘　　要：钾盐矿是蒸发岩矿的一种,其类型分为光卤石矿和钾石盐矿,它经常和其它盐类矿物共生在一起,如石膏、芒硝、石盐、水氯镁石和溢晶石等。这些盐类矿石均易溶于水,且溶解性各异,特别是其中的溢晶石溶解度特别大,在空气中都会发生潮解。刚果奎卢盆地光卤石矿床钻井施工中运用油基泥浆钻井液,获得了理想的取芯效果。施工中还利用钻井泥浆泵替代固井车进行注浆固井,节省了施工费用。The potash ore is a kind of evaporite ore,and its type is divided into carnallite and potash salt ore.It is often associated with other salt minerals,such as gypsum,mirabilite,salt rock,bischofite and tachyhydrite,etc.These salt ores are easily soluble in water,and the solubility is different.In particular,the solubility of tachyhydrite is particularly large,deliquesce can happen in the air.Oil-based mud has been used in the drilling construction of carnallite deposits in the kouilou Basin of Congo,and the ideal coring effect has been obtained.In addition,the drilling mud pump is used to replace cementing vehicle for grouting and cementing,which saves the construction cost.

关 键 词：钾盐 光卤石 溢晶石 水基泥浆 油基泥浆 固井 

分 类 号：TS32[轻工技术与工程]