聚丙烯酰胺水溶液在振动场中的流变行为研究
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摘要
根据聚合物驱油的机理,建立一种毛细管物理模型,它可以模拟油层的岩心,应用自行研制出的动态毛细管流变仪,可以在振动条件下测定聚丙烯酰胺(PMA)水溶液流经毛细管物理模型的流变行为。实验结果表明改变振动的振幅(A)和频率(f)对聚丙烯酰胺水溶液的平均动态表观黏度(-ηa)有很大的影响。低浓度的PAM水溶液随着振幅的增加其平均动态表观黏度也增加,而高浓度的PAM水溶液的平均动态表观黏度随着振幅的增加反而降低。高浓度和低浓度的PAM水溶液的平均表观黏度都随频率的增加而下降。为人工地震采油技术提供理论依据。
According to the micro-physical model of the glass capillary which coincidence with polymer flooding,a dynamic capillary rheometer,the measurement of rheological behavior of polyacrylamide(PMA) aqueous solution under the conditions of vibration was developed.The experimental results showed that changes in vibration amplitude(A) and frequency(f) have great influence on the average dynamic apparent viscosity(a) of the solution.And the average dynamic apparent viscosity of low concentration of PAM aqueous solution increased with the amplitude increasing,while the average dynamic apparent viscosity of high concentration of PAM aqueous solution decrease with the amplitude increasing.The average apparent viscosity of both high concentration and low concentration of PAM aqueous solution decreased with the increasing frequency.Therefore,provides a theoretical basis for seismic shooting oil recovery technology.
According to the micro-physical model of the glass capillary which coincidence with polymer flooding,a dynamic capillary rheometer,the measurement of rheological behavior of polyacrylamide(PMA) aqueous solution under the conditions of vibration was developed.The experimental results showed that changes in vibration amplitude(A) and frequency(f) have great influence on the average dynamic apparent viscosity(a) of the solution.And the average dynamic apparent viscosity of low concentration of PAM aqueous solution increased with the amplitude increasing,while the average dynamic apparent viscosity of high concentration of PAM aqueous solution decrease with the amplitude increasing.The average apparent viscosity of both high concentration and low concentration of PAM aqueous solution decreased with the increasing frequency.Therefore,provides a theoretical basis for seismic shooting oil recovery technology.
引文
[1]王仲茂.振动采油技术[J].北京:石油工业出版社,2000:50-55.
[2]SAMANTA A,BERA A,OJHAK,et al.Effects of alkali,salts,and surfactant on rheological behavior of partially hydrolyzed polyacrylamide so-lutions[J].Chem Eng Data,2010,55(10):4315-4322.
[3]KAMIBAYASHI M,OGURA H,OTSUBO Y.Rheological behavior of suspensions of silica nanoparticles in associating polymer solutions[J].IndEng Chem Res,2006,45(21):6899-6905.
[4]TH VENOTC,KHOUKHA,REYNAUD S,et al.Kinetic aspects,rheological properties and mechanoelectrical effects of hydrogels composed ofpolyacrylamide and polystyrene nanoparticles[J].Soft Matter,2007(3):437-447.
[5]SERGHEI A,CHEN D,LEE D H,et al.Segmental dynamics of polymers during capillary flowinto nanopores[J].Soft Matter,2010(6):1111-1113.
[6]ZENG Guang-sheng,QU Jin-ping.Novel dynamic analytic melting model of polymer with vibration field[J].Chinese Journal of Materials Re-search,2006,20(1):59-64.
[7]ZENG Guang-sheng,QUJin-ping.Rheological behavior of a polymer melt under the impact of a vibration force field[J].Journal of Applied Poly-mer Science,2007,106(7):1152-1159.
[8]ZENG Guang-sheng,QUJin-ping,HE He-zhi,et al.Polymer melt molecule dynamics under impact of vibration force field(Ⅰ)[J].Journal ofChemical Industry and Engineering,2007,58(12):3158-3163.
[9]瞿金平.聚合物动态塑化成型加工理论与技术[M].北京:科学出版社,2005:11-19.
[10]WYSS MH,FRANKE T,MELE E,et al.Capillary micromechanics:measuring the elasticity of microscopic soft objects[J].Soft Matter,2010(6):4550-4555.
[11]谢刚,王双印,林秀,等.极低剪切速率下聚丙烯酰胺溶液在毛细管中的流变特性[J].应用化学,2001:18(7):556-558.
[12]大崎顺彦.振动理论[M].谢礼立,周雍年,袁一凡(译).北京:地震出版社,1990:32.
[2]SAMANTA A,BERA A,OJHAK,et al.Effects of alkali,salts,and surfactant on rheological behavior of partially hydrolyzed polyacrylamide so-lutions[J].Chem Eng Data,2010,55(10):4315-4322.
[3]KAMIBAYASHI M,OGURA H,OTSUBO Y.Rheological behavior of suspensions of silica nanoparticles in associating polymer solutions[J].IndEng Chem Res,2006,45(21):6899-6905.
[4]TH VENOTC,KHOUKHA,REYNAUD S,et al.Kinetic aspects,rheological properties and mechanoelectrical effects of hydrogels composed ofpolyacrylamide and polystyrene nanoparticles[J].Soft Matter,2007(3):437-447.
[5]SERGHEI A,CHEN D,LEE D H,et al.Segmental dynamics of polymers during capillary flowinto nanopores[J].Soft Matter,2010(6):1111-1113.
[6]ZENG Guang-sheng,QU Jin-ping.Novel dynamic analytic melting model of polymer with vibration field[J].Chinese Journal of Materials Re-search,2006,20(1):59-64.
[7]ZENG Guang-sheng,QUJin-ping.Rheological behavior of a polymer melt under the impact of a vibration force field[J].Journal of Applied Poly-mer Science,2007,106(7):1152-1159.
[8]ZENG Guang-sheng,QUJin-ping,HE He-zhi,et al.Polymer melt molecule dynamics under impact of vibration force field(Ⅰ)[J].Journal ofChemical Industry and Engineering,2007,58(12):3158-3163.
[9]瞿金平.聚合物动态塑化成型加工理论与技术[M].北京:科学出版社,2005:11-19.
[10]WYSS MH,FRANKE T,MELE E,et al.Capillary micromechanics:measuring the elasticity of microscopic soft objects[J].Soft Matter,2010(6):4550-4555.
[11]谢刚,王双印,林秀,等.极低剪切速率下聚丙烯酰胺溶液在毛细管中的流变特性[J].应用化学,2001:18(7):556-558.
[12]大崎顺彦.振动理论[M].谢礼立,周雍年,袁一凡(译).北京:地震出版社,1990:32.
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