Chinese Journal of Applied Chemistry

Chinese Journal of Applied Chemistry ›› 2011, Vol. 28 ›› Issue (07): 785-790.DOI: 10.3724/SP.J.1095.2011.00531

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Adsorption of Hydrophobically Associating Polymer on Sand:Influence of Hydrophobe Content and Micro-block Length

LIU Jianxin1, ZHOU Wei2, LIU Yigang3, GUO Yongjun1*, FENG Rusen1, SHU Lian1   

  1. (1.State Key Laboratory of Oil and Gas Reservoirs Geology and Exploration,
    Southwest Petroleum University,Chengdu 610500；
    2.State Key Laboratory of Offshore Oil Exploitation,China National Offshore Oil Corporation(CNOOC),Beijing；
    3.Tianjin Branch of CNOOC China Limited，Tianjin)
  • Received:2010-09-13 Revised:2010-11-26 Published:2011-07-10 Online:2011-07-10
  • Contact: GUO Yongjun

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Abstract:

The static adsorption properties of several water soluble polymers, including different kinds of partially hydrolyzed polyacryamide(HPAM) and hydrophobically associative water soluble polymers(HAWSPs), have been studied at 45 ℃, 55 ℃ and 65 ℃. The results show that the maximum adsorption of HAWSPs on sand is affected by the hydrophobe contents and the lengths of micro-block, with the former one playing the major role. The isothermal adsorption curves show two platform areas. The maximum adsorption of HPAM rises with the increase of temperature, but the situation for HAWSPs is in the contrary. It indicates that the hydrophobe contents and the lengths of micro-block may affect the adsorption.

Key words: Hydrophobically associative water soluble polymer, Micro-block copolymer, Static adsorption, Maximum adsorption, Isothermal adsorption, Adsorption enthalpy

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