发明授权
- 专利标题： Viscoelastic surfactant rheology modifier
- 专利标题（中）： 粘弹性表面活性剂流变改性剂
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申请号： US12643475申请日： 2009-12-21
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公开(公告)号： US07897547B1公开(公告)日： 2011-03-01
- 发明人: Lijun Lin , Leiming Li
- 申请人： Lijun Lin , Leiming Li
- 申请人地址： US TX Sugar Land
- 专利权人： Schlumberger Technology Corporation
- 当前专利权人： Schlumberger Technology Corporation
- 当前专利权人地址： US TX Sugar Land
- 代理商 Martin Rzaniak; David Cate; Robin Nava
- 主分类号： C09K8/584
- IPC分类号： C09K8/584
摘要：
A method for shortening the shear recovery time of cationic, nonionic, anionic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of an amphiphilic polymeric rheology enhancer. The rheology enhancer is a grafted polymer of polydimethylsiloxane, for example polydimethylsiloxanes grafted with ethylene/propylene glycol. The rheology enhancer also increases fluid viscosity and very low rheology enhancer concentration is needed.
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