METHOD OF WELL DRILLING

FIELD: drilling of oil wells, particularly, prevention and elimination of lost circulation in the course of well construction. SUBSTANCE: method provides for mud circulation drilling with use of mud based on water with subsequent addition of filler to it with colmatage properties. Mud is used in the...

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Bibliographic Details
Main Authors KATEEV I.S, FEDOROV V.A, KATEEV R.I, SHAKIROV A.N, GALEEV R.G
Format Patent
LanguageEnglish
Published 20.03.2000
Edition7
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: drilling of oil wells, particularly, prevention and elimination of lost circulation in the course of well construction. SUBSTANCE: method provides for mud circulation drilling with use of mud based on water with subsequent addition of filler to it with colmatage properties. Mud is used in the form of freshly prepared suspension with 4-5-% concentration of polysaccharide containing 0.3-0.5% of caustic soda and polymerized monomer of dimethyldiallylammonium chloride in the amount of 0.2-0.4 wt.% of mud amount. Drill string assembly includes bottom collar colmatage device of hydrojet action in drilling with use of mud with colmatage properties. EFFECT: eliminated complications of well drilling process. 2 cl
Bibliography:Application Number: RU19980109529