METHOD FOR ELIMINATING ABSORPTION OF DRILLING MUDS

FIELD: oil and gas production industry. SUBSTANCE: according to method, injected into absorption zone are coagulated wads which contain clay, filler and water. Additionally introduced in wads being coagulated are chlorous salt, polyacrylamide, soda ash at following ratio of components, mass%: clay,...

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Bibliographic Details
Main Authors KIRILLOV G.A, VJALOV V.A
Format Patent
LanguageEnglish
Published 27.12.1998
Edition6
Subjects
ADHESIVES
CHEMISTRY
DYES
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MINING
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PAINTS
POLISHES
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Summary:FIELD: oil and gas production industry. SUBSTANCE: according to method, injected into absorption zone are coagulated wads which contain clay, filler and water. Additionally introduced in wads being coagulated are chlorous salt, polyacrylamide, soda ash at following ratio of components, mass%: clay, 26.4-28.0; filler, 1.7-1.8; usable as chlorous salt is chlorous salt of sodium or calcium, 0.87-2.8; polyacrylamide, 0.107-0.108; soda ash, 0.28; water, the balance. In this case, process of coagulation takes place in drilling pipes at simultaneous injection of aforesaid components. EFFECT: higher efficiency. 4 cl, 1 tblb
Bibliography:Application Number: RU19960111143