Abstract
AM/DMC acidizing fluid thickener MDNC is synthesized by inverse emulsion polymerization, the reaction is in kerosene-water emulsion, the emulsifiers of system are Span-80 and OP-10. The effect of reaction conditions, such as initiator concentration, emulsifier concentration, total monomer concentration on the polymer intrinsic viscosity and molecular weight are investigated. The optimal reaction conditions are initiator amount 0.20 wt%; emulsifier concentration 15 wt%;monomer ratio(AM∶DMC)=3∶1; total monomer concentration 25 wt%. And evaluation is made to emulsifier MDNC acidizing fluid performance, the thickener has the advantages of good thickening effect, good thermal stability, strong anti-shearing capability and good anti-salts capability. It has better application prospect.
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