化工进展2018，Vol.37Issue(6)：2370-2377,8.DOI:10.16085/j.issn.1000-6613.2017-2373
两性离子抑制剂的合成及性能
Synthesis and performance of a polyampholyte inhibitor
杨彦东 1戎克生 1徐生江 1李建国 1于永生 1李佳2
作者信息
- 1. 新疆油田公司工程技术研究院,新疆 克拉玛依 834000
- 2. 西南石油大学化学化工学院,四川 成都 610500
- 折叠
摘要
Abstract
The polyampholyte inhibitor was synthesized with three monomers,namely,diallyl dimethyl ammonium chloride(DMDAAC),methyl allyl alcohol(MP)and 2-acrylamido-2-methyl propane sulfonic acid(AMPS),by means of aqueous solution polymerization. It was characterized by FTIR, SEM,Ubbelohde viscometer and GPC. It is a low molecular weight,linear and zwitterionic copolymer. The effects of initiator dosage,total monomer concentration,molar ratio of three monomers,reaction temperature and reaction time on the inhibition performance were investigated. The results showed that the optimum reaction conditions were determined as follows:4% ammonium persulfate initiator,30% concentration monomer,the molar ratio of AMPS:DMDAAC:MP = 4:3:4,65℃ the reaction temperature and 7 hours reaction. The inhibition performance was evaluated by linear swelling experiment and rolling recovery rate,and compared with XY-27,SIAT and polymeric alcohol. The results indicated that the polyampholyte inhibitor had the best inhibitory effects. The microscopic mechanism was investigated by XRD and zeta potential,which showed that it can reduce the spacing of bentonite and compress the diffusion double electron layer. The performance of drilling fluid system with inhibitor was evaluated by rheological properties,filtration properties and rolling recovery, indicating that the inhibitor had good compatibility and strong inhibitory effects.关键词
页岩/井壁稳定/两性离子抑制剂/抑制性Key words
shale/wellbore stability/polyampholyte inhibitor/inhibition分类
能源科技引用本文复制引用
杨彦东,戎克生,徐生江,李建国,于永生,李佳..两性离子抑制剂的合成及性能[J].化工进展,2018,37(6):2370-2377,8.
