DEVICE FOR PREVENTING ACCESS OF FOREIGN MATTER INTO WELL

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Bibliographic Details
Main Authors VITRIK VITALIJ G,SU, PUSTOVOJTENKO IVAN P,SU
Format Patent
LanguageEnglish
Published 23.07.1981
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Bibliography:Application Number: SU19792797968