Effects of Hydrophobic Groups Content and Micro-block Length on the Elasticity of Associative Polymer Solution

doi:10.3724/SP.J.1095.2013.20439

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Effects of Hydrophobic Groups Content and Micro-block Length on the Elasticity of Associative Polymer Solution

ZHANG Xinmin^1,2, GUO Yongjun^1,2*, LIU Jianxin³, FENG Rusen¹, HU Jun², LI Huabing², ZHAO Dan⁴, ZHANG Jian^5,6, LV Xin^5,6

(1.State Key Laboratory of Geology and Production Engineering of Oil-gas Reservoir in Southwest Petroleum University,Chengdu 610500,China;
2.Sichuan Guangya Polymer Chemical Limited Company,Nanchong 637005,China;
3.Petroleum Engineering Institute,Yangtze University,Jingzhou 434023,China；
4.Southwest Qil and Gas Field of Chongqing Natural Gas Purification Plant,Chongqing 401200,China;
5.State Key Laboratory of Offshore Oil Exploitation,Beijing 100027,China;
6.CNOOC Research Institute,Beijing 100027,China)

Received:2012-09-28 Revised:2012-11-07 Published:2013-08-10 Online:2013-08-10
Contact: GUO Yongjun

Abstract

Abstract: The effects of hydrophobic group content and micro-block length on viscoelastic properties of P(AM-NaAA-C16DMAAC)(AA：acrylamide， NaAA:sodium acrylate, C16DMAAC：hexadecyl trimethyl allylammonium chloride) solution were studied. The results indicated that the viscoelastic properties could be changed effectively for associative polymers with similar molecular structure and common zero shear viscosity by varying the molecular structures. When increasing the hydrophobic group content, the first normal stress difference(N1) increased and its shearing rate, a speed for N1 to reach the minimum value decreased. Furthermore, when increasing the micro-block length, the viscosities and the viscoelatic rheological properties decreased after initial increasing, so there is an optimum value for the micro-block length.

Key words: Associative polymer, Elasticity, Normal stress difference, viscosity

CLC Number:

O631

ZHANG Xinmin1,2, GUO Yongjun1,2*, LIU Jianxin3, FENG Rusen1, HU Jun2, LI Huabing2, ZHAO Dan4, ZHANG Jian5,6, LV Xin5,6. Effects of Hydrophobic Groups Content and Micro-block Length on the Elasticity of Associative Polymer Solution[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2013.20439.

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Effects of Hydrophobic Groups Content and Micro-block Length on the Elasticity of Associative Polymer Solution

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