A METHOD OF MEASURING VISCOELASTIC PROPERTIES OF RETAINED POLYMER IN POROUS MEDIA

doi:10.3863/j.issn.1000-2634.1992.01.002

Abstract

Abstract: This is the fourth paper studying the viscoelaticity of retained polymer molecules in porous media, (1) (2) (3) A comparison of molecular flexibility is made between HPAM and Xathan Gum. It has been shown theoretically that the viscoelastic recovery of the flexible retained molecules causes the effective flowing area of throat to decrease exponentially, and thus causes the flow rate to decrease in the same manner. Based on this, a new method has been developed for measuring the relaxation time of retained polymer molecules in porous media.The effect of core permeability and soulution salinity on viscoelastic flow has also been studied.

Key words: Polymer, Viscoelastic property, Porous media, Measurement

CLC Number:

TE357.431

Han Xianqing Gao Yourei. A METHOD OF MEASURING VISCOELASTIC PROPERTIES OF RETAINED POLYMER IN POROUS MEDIA[J]. 西南石油大学学报(自然科学版), 1992, 14(1): 8-17.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.3863/j.issn.1000-2634.1992.01.002

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y1992/V14/I1/8

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A METHOD OF MEASURING VISCOELASTIC PROPERTIES OF RETAINED POLYMER IN POROUS MEDIA

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