摘要
为了提高疏水缔合聚合物(HAP)的流变性能和在多孔介质中的流度控制能力,将环糊精和环氧氯丙烷缩聚得到一种水溶性的环糊精聚合物(β-CDP),并将其与HAP混合。结果表明,环糊精聚合物与疏水缔合聚合物之间的主客体包合作用大幅改善了疏水缔合聚合物溶液的增黏能力和黏弹性,并且主客体包合体系(β-CDP/HAP)保持了显著的剪切稀释性。β-CDP/HAP表现出独特的黏—温关系,其黏流活化能随温度变化,表现出极强的耐温能力。岩心流动实验表明,β-CDP/HAP在多孔介质中形成多层吸附,比HAP具有更强的流度控制能力。通过疏水基团和环糊精基团之间的主客体作用来可以增强分子间的相互作用,能提高缔合聚合物的综合性能。
In order to improve the rheological properties of hydrophobically associating polymers(HAP)and the mobility control ability in porous media,a water-soluble cyclodextrin polymer,β-CDP.is synthesized by condensation of the cyclodextrin and epichlorohydrin,meanwhile,mixed with the HAP.The results showed that the host-guest interaction improves the thickening ability and viscoelasticity of the HAP solution.The host-guest inclusion system ofβ-CDP and HAP maintained shear thinning behavior.β-CDP/HAP demonstrated special viscosity-temperature curves and its activation energy changes with temperature,showing a strong ability of temperature resistance.The core flooding experiments showed thatβ-CDP/HAP formed multilayer adsorption in porous media and had stronger mobility control ability than HAP.By the host-guest interaction between the hydrophobesp and the cyclodextrin groups,the intermolecular interaction can be enhanced,and the comprehensive performance of HAP can be improved.
作者
李玺
周希
叶仲斌
舒政
陈文娟
陆一新
邱诚
何姝蕊
LI Xi;ZHOU Xi;YE Zhongbin;SHU Zheng;CHEN Wenjuan;LU Yixin;QIU Cheng;HE Shurui(School of Materials and Environmental Engineering,Chengdu Technological University,Chengdu,Sichuan 611730,China;College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China;Chengdu Technological University,Chengdu,Sichuan 611730,China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China;State Key Laboratory of Offshore Oil Exploitation,Beijing 100028,China)
出处
《油气藏评价与开发》
CSCD
2021年第6期884-889,896,共7页
Petroleum Reservoir Evaluation and Development
基金
海洋石油高效开发国家重点实验室“海上油田驱油聚合物的化学速溶方法探索”(CCL2018RCPS0037RON)
油气藏地质及开发工程国家重点实验“超分子协同作用提高缔合聚合物增黏效率机理研究”(PLN2020-3)。
关键词
疏水缔合聚合物
Β-环糊精聚合物
主客体包合
流变性
流度控制
hydrophobically associative polymer
β-cyclodextrin polymer
host-guest inclusion
rheology
mobility control
