摘要
以“团簇”状聚合物DHAP和“链束”状聚合物HMPAM为对象,研究了两种不同聚集行为聚合物的耐盐性能。在不同矿化度组成的条件下,应用原子力显微镜、布氏黏度计、哈克流变仪考察了矿化度对聚合物的微观聚集形貌、表观黏度和流变性的影响。结果表明:随着矿化度的逐渐增加,“链束”状聚集体的HMPAM溶液黏度随着矿化度的增加先增加后降低;而“团簇”状聚集体的DHAP聚集体尺寸大,但不同聚集体之间的相互连接较弱,受矿化度的影响明显,空间网络结构容易遭到较大程度的破坏,呈现出随着矿化度的增加溶液黏度快速下降的特征。具有较强空间连接结构的“链束”状HMPAM比“团簇”状DHAP具有更强的耐盐性能。
The salt tolerance of two polymers with different aggregation behavior was studied by using“cluster”polymer DHAP and“chain bundle”polymer HMPAM.Under different salinity composition,the effects of salinity on the microscopic aggregation morphology,viscosifying properties and rheological characteristic of polymers were studied by atomic force microscope,Brookfield viscometer and HAAKE rheometer.The results showed that with the increase of salinity,the polymer viscosity of HMPAM increase first and then decrease with the increase of salinity.While the size of DHAP aggregates of“cluster”aggregates was large,but the interconnection between different aggregates was weak,and the influence of salinity was obvious.The spatial network structure was easy to be damaged to a greater extent,showing the characteristics of rapid decline of solution viscosity with the increase of salinity.The“chain bundle”polymer HMPAM with strong spatial connection structure had better salt tolerance than“cluster”polymer DHAP.
作者
施雷庭
朱诗杰
薛新生
赵文森
杨杰
刘长龙
叶仲斌
Shi Leiting;Zhu Shijie;Xue Xinsheng;Zhao Wensen;Yang Jie;Liu Changlong;Ye Zhongbin(State Key Laboratory of Oil&Gas Reservoir and Exploitation Engineering,Southwest Petroleum University,Chengdu 610500,Sichuan,China;State Key Laboratory of Offshore Oil Exploitation,Beijing 100027,China;HSE and Technical Supervision Research Institute of Petro China Southwest Oil&Gas Field Company,Chengdu 610041,Sichuan,China)
出处
《精细石油化工》
CAS
北大核心
2019年第6期80-84,共5页
Speciality Petrochemicals
基金
“十三五”国家科技重大专项项目(2016ZX05025-003)
关键词
疏水缔合聚合物
表观黏度
流变性
聚集行为
耐盐性能
hydrophobic associating polymer
viscosity increasing ability
rheological property
aggregation behavior
salt resistance
