钻井液与完井液2024，Vol.41Issue(6)：778-783,6.DOI:10.12358/j.issn.1001-5620.2024.06.011
一种全温域聚合物缓凝剂
A Full Temperature Range Polymer Retarder
摘要
Abstract
A new quaternary polymer retarder C-R45L has been developed through molecular design to overcome the shortcomings of the conventional chain polymer retarders such as poor regularity,easy to cause overtime retardation at medium-low temperatures and slow development of strength etc.The raw materials for the synthesis of C-R45L include 2-acrylamido-2-methylpropanesulfonic acid(AMPS),itaconic acid(IA),sodium styrene sulfonate(SSS)and a long-chain hydrophobic associative monomer TAS-24.Study on C-R45L with IR spectroscopy and laboratory evaluation of C-R45L's effects on the performance of cement slurries show that C-R45L has good retarding effect;a cement slurry treated with 4%C-R45L has thickening time of 347 min at 210℃.At high and medium-low temperatures,C-R45L has good retarding regularity.C-R45L can be used at high-temperature,medium-temperature and low-temperature operations.It has no adverse effect on the compressive strength of set cement,the medium/low temperature strengths and the top strength of set cement develop very fast.Good wide-temperature-range performance makes C-R45L suitable for use in cementing long open holes.C-R45L has been successfully used in cementing the exploration well Gutan-1,and excellent cementing job quality was obtained.关键词
聚合物缓凝剂/全温域/疏水缔合/规律性/大温差Key words
Polymer retarder/Full temperature range/Hydrophobic association/Regularity/Wide temperature range分类
能源科技引用本文复制引用
田野,王义昕,赵军,宋维凯,于天帅,王贺宁..一种全温域聚合物缓凝剂[J].钻井液与完井液,2024,41(6):778-783,6.基金项目
中海油服公司级科研项目"海水基固井关键外加剂的开发与机理研究"(E-23236004). （E-23236004）
