Russian translation: (сополимерный) смазочный состав lubra beads
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English to Russian translations [PRO] Tech/Engineering - Petroleum Eng/Sci / circulation sub
English term or phrase:lubra bead
The Multiple Opening Circulation Sub (MOCS) is a circulation sub that allows unlimited cycling
between drilling fluid flowing to the drill bit, and porting to the annulus at the tool.
In the Bottom Hole Assembly (BHA), the MOCS is often placed above a drilling motor or a
steerable drilling tool. The tool is hydrostatically balanced and compensated for thermal
expansion. It is capable of porting fluid to the annulus at a flow rate of up to 700 gpm. It can be
utilized in water, water based muds, and oil based muds that are between 8 to 16 lbs/gal. The
tool can tolerate a small amount of Lost Circulation Material (LCM) ranging from nut plugs to