STAS 12615-1988
Equipment for hydrogeljogical drijling DRAGS FOR COUNTERFLUSHLI DRILLING BY ABSORPTION AND AIRLIFT

Standard No.

STAS 12615-1988

Release Date

1988

Published By

RO-ASRO

Latest

STAS 12615-1988

Scope

Prezentul standard se refer? la sapele eu lame, folosite pentru forajul rotativ al pu? urilor de ap? eu diametrul mare, in roei slabe, conform STAS 328-.S6, eu cur??irea t?plii prin circula?ie invers?, folosind metoda absorb?iei ?i aer-lift.

STAS 12615-1988 history

• 1988 STAS 12615-1988 Equipment for hydrogeljogical drijling DRAGS FOR COUNTERFLUSHLI DRILLING BY ABSORPTION AND AIRLIFT