Fluid loss additive for boring fluid
The invention relates to a fluid loss control agent for drilling fluid, which is prepared through reacting natural humic acid with sodium-hydroxide to obtain humic sodium salts, then carrying out reduction copolymerization with sulfonated asphalt, hydroxyethyl cellulose, polyacrylamide, water-solubl...
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Main Author | |
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Format | Patent |
Language | English |
Published |
19.09.2007
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a fluid loss control agent for drilling fluid, which is prepared through reacting natural humic acid with sodium-hydroxide to obtain humic sodium salts, then carrying out reduction copolymerization with sulfonated asphalt, hydroxyethyl cellulose, polyacrylamide, water-soluble silicon oil AND methyl aldehyde. |
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Bibliography: | Application Number: CN200510133796 |