石油化工2017，Vol.46Issue(1)：117-123,7.DOI:10.3969/j.issn.1000-8144.2017.01.017
抗温270℃钻井液聚合物降滤失剂的研制
Development of the polymer filtrate reducer used for 270 ℃ ultra-high temperature drilling fluid
摘要
Abstract
A polymer filtrate reducer named HR-1 for ultra-high temperature drilling fluid is prepared by aqueous solution polymerization method.The effects of ratio of hydration groups to adsorption groups,monomer molar ratio,pH,monomer concentration,dosage of crosslinking agent,dosage of initiator on properties of HR-1 are investigated.The performance of HR-1 is evaluated in fresh water slurry and water-base fluid system.The structures of HR-1 had been studied by FTIR,TG,DTG.Through synthetical consideration,when ratio of groups is 6 ∶ 4,monomer molar ratio 10 ∶ 5,pH ＞ 8,the total amount(w) of monomer is 60％-67％,dosage of crosslinking agent is 7.0％-8.5％,dosage of initiator is 0.3％-0.7％,the performance of HR-1 is perfect.The results of the experiment show that HR-1 has good loss reduction and thermal stability,temperature resistance (up to 270 ℃).When the dosage of HR-1 is 2.0％ in the fresh water slurry,the API fluid loss slides from 46.0 mL to 7.6 mL.270 ℃ ultra-high temperature drilling fluid has good thermal stability and rheologic properties,the API fluid loss is 4.0 mL,the high pressure filtration is less than 13.0 mL.The result of representation shows that the graft copolymerization of monomer really took place,and the polymer HR-1 has good thermal stability.关键词
钻井液/聚合物/降滤失剂/热稳定性/滤失量Key words
drilling fluid/polymer/filtrate reducer/thermal stability/fluid loss分类
能源科技引用本文复制引用
张丽君,王旭,胡小燕,张滨,李彬,王中华..抗温270℃钻井液聚合物降滤失剂的研制[J].石油化工,2017,46(1):117-123,7.基金项目
中原石油勘探局科技攻关项目(2013101). （2013101）
