YANG Xiao-ying1,CHEN Sheng-nan1,RUI Jia-ming1,LIU Yan-tao1,LI Fang-xing1,LIU Wei-dong2,LIU Fu-hai2(paration Department of Chemistry,Nankai University,Tianjin 300072,China;2.Institute of Porous Flow and Fluid Mechanics,CNPC and Academia Sinica,Hebei Langfang 102800,China)
(paration Department of Chemistry,Nankai University,Tianjin 300072,China;2.Institute of Porous Flow and Fluid Mechanics,CNPC and Academia Sinica,Hebei Langfang 102800,China)
Abstract：
On the base of polyacrylamide with high molecular weight,the water-soluble PAM microgels was prepared.The crosslinked structure of the microgels is composed of σ bands,which makes little changes of the viscosity in the conditions of high temperature and salinity.At 45℃,the recovery of 15‰ microgels obtained 25% in brines.The PAM microgels is found to have special property in EOR by the research on it.
YANG Xiao-ying1,CHEN Sheng-nan1,RUI Jia-ming1,LIU Yan-tao1,LI Fang-xing1,LIU Wei-dong2,LIU Fu-hai2.A Novel Microgel for EOR in Hostile Environments[J]. Chemcial Industry and Engineering, 2003,20(3): 135-138
2003, Vol. 20 
