摘要
考察疏水改性聚丙烯酰胺(HMPAM)和部分水解聚丙烯酰胺(HPAM)溶液的黏度、阻力系数和残余阻力系数,HMPAM在55℃时仍保持较高的黏度,耐温效果明显,HMPAM的增黏效果远优于HPAM;HMPAM具有很高的阻力系数和残余阻力系数,依次为97.62和67.11。HMPAM并联双管驱油实验表明,调驱后,低渗岩心采收率从47.75%提高至58.56%,高渗岩心采收率从58.16%提高至67.04%;调驱前注入压力0.045 MPa,调驱后注入压力0.206 MPa。
The viscosities,resistance factors and residual resistance factors of hydrophobically modified polyacrylamide(HMPAM) and partially hydrolyzed polyacrylamide(HPAM) were compared.The viscosity of HMPAM is high at 55 ℃,showing it has good heat resistant property.In addition,the viscosity increasing effect is far better than that of HPAM,and the resistance factor and residual resistance factor of HMPAM are as high as 97.62 and 67.11 respectively.According to the results of parallel double-tube oil displacement experiment with HMPAM,the recovery efficiency was increased from 47.75% to 58.56% in low permeability core,the recovery efficiency was increased from 58.16% to 67.04% in high permeability core,and the injection pressure was reduced from 0.045 MPa to 0.206 MPa after HMPAM was used for oil displacement.
出处
《精细石油化工进展》
CAS
2013年第2期11-13,共3页
Advances in Fine Petrochemicals
关键词
疏水改性聚丙烯酰胺
采收率
驱油效果
hydrophobically modified polyacrylamide
recovery efficiency
oil displacement effect
