دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (PbS) lead sulphide. Technical grades (specific gravity about 7) are used for increasing the density of drilling fluids to points impractical or impossible with barite. gall n: damage to steel surfaces caused by friction and improper lubrication.

n: leadsulphate. Technical grades (specific gravity gbout 7) are used for increase density of drilling fluids to points impractical or impossible with barite.

lead sulfide, PbS. A mud weighting additive for high mud weights.