Primorsky cement maker Spasskcement has certified to Russia’s GOST standard two types of special cement used for boring and running of oil wells, the company’s parent Vostokcement reported earlier today.

Russian certificates have been reportedly issued for G-type (I-G-CC-1) and H-type (I-G-CC-1) Portland cement produced in accordance with the American Petroleum Institute’s API-10A standard.

The cement types are used for plugging-back of deep oil and gas wells in adverse geological conditions.