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- W2381485172 abstract "To improve the acrylamide polymer used in water-based drilling fluids,synthesis of water-soluble AM-DMC-SSS-starch amphoteric polymers by solution copolymerization,and exploreits water-based drilling fluid applications. The results showed that the optimal synthesis conditions of starch graft polymer:in a certain amount of starch solution,the mass fraction of initiator was 0. 6%,the mass fraction of acrylic amide( AM),sodium 4-styrene sulfonate( SSS) and methyl acryloxy ethyltrimethyl ammonium chloride( DMC) were 10. 3%,10% and 7. 4%,respectively. The maximum graftrate when polymerization reaction time was 3 h. In the performance evaluation experiments of drilling fluid,when plus the amount of starch copolymer was 0. 4%,the amount of fresh water drilling fluid loss from 16. 5 m L fell to 7. 0 m L,which showed better fluid loss effect; the apparent viscosity by 8. 0 m Pa ·s increased to 32. 0 m Pa ·s,which showed a strong ability to put sticky cut; when shale recovery rate increased from 38. 5% to 67. 3%,starch copolymer has good anti-collapse properties; in shale swelling experiments,when starch graft polymer mass fraction of 0. 5%,the coefficient of linear expansion from of shale 11. 6% fell to 22. 1%,showing a good expansion for shale inhibition properties." @default.
- W2381485172 created "2016-06-24" @default.
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- W2381485172 date "2015-01-01" @default.
- W2381485172 modified "2023-09-25" @default.
- W2381485172 title "The preparation and performance evaluation of AM-DMC-SSS-starch" @default.
- W2381485172 hasPublicationYear "2015" @default.
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