ADDITIVE FOR DRILLING MUD

PROBLEM TO BE SOLVED: To provide an additive for drilling mud, which can prevent deterioration of flowability to secure excellent stability even when sea water including electrolytes gets mixed in with mud.SOLUTION: The additive for drilling mud comprises an alkyl-modified carboxyl group-containing...

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Main Authors MORIMITSU YUICHIRO, ASHIDA TARO
Format Patent
LanguageEnglish
Published 10.11.2011
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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Abstract PROBLEM TO BE SOLVED: To provide an additive for drilling mud, which can prevent deterioration of flowability to secure excellent stability even when sea water including electrolytes gets mixed in with mud.SOLUTION: The additive for drilling mud comprises an alkyl-modified carboxyl group-containing water-soluble copolymer obtained by polymerizing (meth)acrylic acid, 12-24C alkyl (meth)acrylate and according to need, a compound having two or more ethylenically unsaturated groups. In the additive for drilling mud, the viscosity of 1 wt.% neutralized viscous liquid with respect to pure water, that with respect to sea water containing electrolytes, and TI value are in the prescribed ranges, respectively.
AbstractList PROBLEM TO BE SOLVED: To provide an additive for drilling mud, which can prevent deterioration of flowability to secure excellent stability even when sea water including electrolytes gets mixed in with mud.SOLUTION: The additive for drilling mud comprises an alkyl-modified carboxyl group-containing water-soluble copolymer obtained by polymerizing (meth)acrylic acid, 12-24C alkyl (meth)acrylate and according to need, a compound having two or more ethylenically unsaturated groups. In the additive for drilling mud, the viscosity of 1 wt.% neutralized viscous liquid with respect to pure water, that with respect to sea water containing electrolytes, and TI value are in the prescribed ranges, respectively.
Author ASHIDA TARO
MORIMITSU YUICHIRO
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Snippet PROBLEM TO BE SOLVED: To provide an additive for drilling mud, which can prevent deterioration of flowability to secure excellent stability even when sea water...
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SubjectTerms ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
Title ADDITIVE FOR DRILLING MUD
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