Drilling mud

A drilling mud contains a poly-N-vinyl-carboxylic acid amide as protective colloid. As well as the vinyl group an N-alkyl group containing up to 6 carbon atoms may be present. The acid may be acetic acid or a homologue containing up to 6 carbon atoms (excluding the carbonyl group). Polymers exemplif...

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Bibliographic Details
Main Authors ULMSCHNEIDER DIETER, DIENER HORST
Format Patent
LanguageEnglish
Published 03.01.1967
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:A drilling mud contains a poly-N-vinyl-carboxylic acid amide as protective colloid. As well as the vinyl group an N-alkyl group containing up to 6 carbon atoms may be present. The acid may be acetic acid or a homologue containing up to 6 carbon atoms (excluding the carbonyl group). Polymers exemplified are poly-N-vinyl-N-methylacetamide and poly-N-vinyl-N-propylpropionic acid amide. The polymers may have a K-value of 85. The muds contain 5-50 Kg. of polymer per cubic metre, while the clay is in amount 2-10% by weight.
Bibliography:Application Number: US19640415789