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- W2391466858 abstract "A MA/SAS/AMPS copolymer as high temperature resistance to 240℃thinner for waterbased drilling fluid was synthesized.Optimum reaction conditions were:the aqueous solution polymerization,the molar ratio of maleicanhydride(MA)to sodium allyl sulfonate(SAS)to 2-acrylamide and methylpropane sulfonic acid(AMPS)5∶4∶4,the initiator ammonium persulfate dosage 3%,monomer concentration 45%,copolymerization temperature 85℃,copolymerization time 4h.The experimental results indicated that when the addition of the thinner was 0.5%in fresh water-based slurry,its apparent viscosity decreased from 45mPa·s to 30mPa·s,the thinning rate was 80.2% at room temperature,and apparent viscosity decreased from 50mPa·s to 34mPa·s,the thinning rate was 65% when the water-based slurry adding 0.5%thinner was aged at 240℃for 16h." @default.
- W2391466858 created "2016-06-24" @default.
- W2391466858 creator A5089985695 @default.
- W2391466858 date "2014-01-01" @default.
- W2391466858 modified "2023-09-25" @default.
- W2391466858 title "Study on MA/SAS/AMPS copolymer high temperature thinner for drilling fluid" @default.
- W2391466858 hasPublicationYear "2014" @default.
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