钻井液与完井液2017，Vol.34Issue(3)：39-43,5.DOI:10.3969/j.issn.1001-5620.2017.03.007
控流管路中降滤失剂的合成与性能研究
Synthesis and Evaluation of a Filter Loss Reducer in Flow-control Line
摘要
Abstract
In high pressure jet drilling,the viscosity of drilling fluid at bit nozzle has long been a problem associated with the use of anionic filter loss reducers.A new drilling fluid filter loss reducer has been developed through the copolymerization of 2-Acrylamido-2-methylpropane sulfonic acid (AMPS),acrylamide (AM) and potassium acrylate at an optimum ratio of 7 ∶ 6 ∶ 1.The total concentration of these monomers was 17％.The filtration control performance and the rheology of the copolymer in fresh water drilling fluid,saltwater drilling fluid and saturated saltwater drilling fluid were studied.The studies showed that the viscosity of the copolymer synthesized in flow-control line was lower than the viscosity of the copolymer synthesized in three-necked flask under the same conditions,solving the problem of high viscosity at the bit nozzle caused by the conventional anionic filter loss reducers.The AMPS/AM/AA copolymer can reduce the filter loss of high salinity water base drilling fluids by 94％.It showed good filtration control and viscosifying performance in fresh water base fluid,saltwater base fluid and saturated saltwater base fluid.Thermal stability analysis and high temperature aging evaluation showed that the copolymer was able to retain its stability at 330 ℃,satisfying the needs for high temperature drilling fluids in field operation.关键词
聚合物/AMPS/AM/AA/降滤失剂/抗温抗盐/流变性Key words
Polymer/AMPS/AM/AA/Filter loss reducer/High temperature resistant and salt resistant/Rheology分类
能源科技引用本文复制引用
张群正,刘金磊,孙淑娟,周慧鑫,杨萌,白永强..控流管路中降滤失剂的合成与性能研究[J].钻井液与完井液,2017,34(3):39-43,5.基金项目
西安石油大学全日制硕士研究生创新基金资助“抑制型抗高温降滤失剂的合成与性能研究”(2015CX140734) （2015CX140734）
国家级大学生创新创业训练计划项目“多功能抗高温钻井液处理剂的合成研究”(201510705240). （201510705240）
