摘要
以丙烯酸、2-丙烯酰胺基-2-甲基丙磺酸为单体,过硫酸铵为引发剂,以次亚磷酸钠、甲酸钠、亚硫酸钠、巯基乙醇为链转移剂制备水基钻井液降黏剂。对产物的单体转化率、特性黏数进行了表征;用淡水基浆对产物的常温和高温老化后降黏性能进行了评价。采用次亚磷酸钠作为链转移剂制备的聚合物的相对分子质量约6 000,降黏性能较好;而且次亚磷酸钠具有抗氧化性,作为链转移剂制备的聚合物具有更好的抗温性能。
Acrylic acid/2-acrylamide-2-methylpropanesulfonicacid（AA/AMPS） copolymer, used as the viscosity reducer in the drilling mud, was synthesized with acrylic acid and AMPS as monomers, ammonium persulfate as initiator and sodium hypophosphite, sodium formate, sodium sulfite and thioglycol as chain-transfer agents. The conversion rate of monomer, the intrinsic viscosity and the properties to reduce mud viscosity were investigated. Sodium hypophosphite as the chain-transfer agent was better than sodium formate, sodium sulfite and mercaptoethanol with product molecular weight of 6 000. Sodium hypophosphite was also antioxidant and showed better temperature tolerance.
出处
《精细石油化工》
CAS
CSCD
北大核心
2013年第6期4-7,共4页
Speciality Petrochemicals
基金
绵阳市科技局2012年度科技基金(12G017)
关键词
丙烯酸
2-丙烯酰胺基-2-甲基丙磺酸
链转移剂
特性黏数
水基钻井液
降黏剂
acrylic acid
2-acrylamide-2-methylpropane sulfonic acid
chain-transfer agents
intrinsic viscosity
water based drilling fluid
viscosity reducer
