阳离子聚丙烯酰胺流变性及渗流性能研究  

Study on the Rheological and Flowing Properties of Cationic Polyacrylamide

作　　者：罗陶涛[1] 郑军[1] 刘鸿博[1] 方世跃[1] 赵万伟[2] 肖黄飞[2] 

机构地区：[1]成都理工大学能源学院 [2]中国石油西南油气田公司天然气研究院

出　　处：《石油与天然气化工》2009年第3期235-237,176,共3页Chemical engineering of oil & gas

摘　　要：采用Bohlin CVO流变仪和填砂管驱替渗流模型对阳离子聚丙烯酰胺进行测定,结果表明,阳离子聚丙烯酰胺表现出剪切稀释性能,低剪切应力下,储能模量和损耗模量相近,而在高剪切应力下,损耗模量将大于储能模量。在频率扫描下,溶液的储能模量随着频率的加快而增加。在多孔介质中,1600 mg/L阳离子聚丙烯酰胺阻力系数和残余阻力系数为214和36.67,而1200mg/L时为20.33和5.79;后续水采用不同流速进行驱替时,残余阻力系数随流速的减小而降低。A low shear rotational rheometer(Bohlin CVO) and sand packing porous model were used to determine the viscolelasticity and rheological properties of cationic polyacrylamide (CPAM). The result shows that CPAM shows shearing dilution function.The store modulus and loss modulus are similar under low shearing strain, and the loss modulus is greater than store modulus under high shearing strain. The store modulus increase with frequency accelerate in the process of frequency scan. The coefficient of resistance and residual resistance factor for 1600ppm CPAM is 214,36.67 respectively,but for 1200ppm CPAM is 20.33,5.79respectively.The residual resistance factors are reduced with the flow rate diminution for follow-up water drive.

关 键 词：阳离子聚丙烯酰胺 粘弹性参数 渗流性能 阻力系数 残余阻力系数 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TS727.2[轻工技术与工程—制浆造纸工程]