EFFECT OF PARTIALLY HYDROLYZED POLYACRY LAMIDE ON SAND PARTICLE WETTABILITY

doi:10.3863/j.issn.1000-2634.1999.02.03

Abstract

Abstract:

Based on the analysis of conventional rock wettability evaluation methods, a sand-pack flooding experiment procedure for the research of effect of partially hydrolyzed polyacrylamide on sand partial wettability has been established. Use this procedure, the effect of polymer solution on sand grain wettability is measured under different TDS and polymer concentrations. The results show that the presence of adsorbed polymer always induces an increase in the water irreducible saturation and decrease the residual oil saturation. It makes the sand grain become more water-wettability. The enhancement of the water-wettability of the sand grain affected by polymer concentration and TDS. It increases with polymer concentration and decreases with TDS in the interesting ranges.

Key words: polymer injection, wettability, physical simulation, displacing experiment, absorption, rock property, shale oil displacement mechanism

CLC Number:

TE357.431

Ye Zhong-bin Jin Ying-hui Yang Qing-yan. EFFECT OF PARTIALLY HYDROLYZED POLYACRY LAMIDE ON SAND PARTICLE WETTABILITY [J]. 西南石油大学学报(自然科学版), 1999, 21(2): 9-12.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.3863/j.issn.1000-2634.1999.02.03

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y1999/V21/I2/9

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EFFECT OF PARTIALLY HYDROLYZED POLYACRY LAMIDE ON SAND PARTICLE WETTABILITY

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