Effect of Cross Linking Agent on Alkali/Surfactant/Polymer

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2008,（1）
• 页码范围: 193-197
• 页数: 5页
• 语种: 英文

摘要

Alkali/surfactant/polymer (ASP) multisystem flooding technique, which has an expansive application prospect,is one of the enhancing oil recovery (EOR) methods. By adding the organic chromium to the ASP, the molecular structure of polymer was made to change, and the capability of controlling mobility coefficient of ASP was improved. The results showed that multisystem could still keep ultra-low interfacial tension between the multisystem and crude oil after addition of Cr3+. The resistance factor and residual resistance factor, the indicator which describes the capability of controlling mobility, upgraded strikingly. However its storage modulus and loss modulus,the indicator which describes viscoelasticity, increased. The results of physical simulation experiment indicated that this type of improved ASP could increase the recovery ratio by 4.3% compared to common ASP multisystem.