摘要
弱凝胶调剖在各个油田都有着广泛的应用,但是堵剂进入地层后性能变化、成胶效果却无法评价。通过室内实验,利用石油大学30 m超长岩心,注入HPAM、苯酚、乌托品和盐酸复配成的PFS弱凝胶体系,考察了弱凝胶注入长岩心后的性能变化。实验结果表明,PFS弱凝胶调剖体系经过稀释、吸附和剪切后虽然其粘度、相对分子质量有一定程度下降,但仍然具有较好的成胶封堵效果。
Profile control of weak gels has been widely used in every oilfield. But it can not be evaluated in the performances of blocking agents after being injected into formations. PFS weak gel comprising HPAM, phenol, urotropine, and HCl was injected into 30 m super -long core provided by Petroleum University in the laboratory, and was evaluated after being injected into long core. The laboratory results showed that PFS weak gel as profile controlling agent still had better gelling shear although the viscosity and molecular weight and plugging performances after dilution, absorption and of the weak gel decreased to a certain extent.
出处
《精细石油化工进展》
CAS
2010年第7期1-3,共3页
Advances in Fine Petrochemicals
关键词
弱凝胶
岩心
吸附
剪切
稀释
成胶
weak gel, core, adsorption, shear, dilution, gelling
