摘要
为了研究疏水缔合聚合物驱油规律和动态,建立了疏水缔合聚合物驱油数学模型。根据室内对疏水缔合聚合物溶液结构的研究成果,采用聚合物线形体和聚合物聚集体共同描述疏水缔合聚合物溶液在多孔介质中的性质变化和渗流特性,同时考虑了疏水缔合聚合物溶液在不同孔渗条件下水相相对渗透率降低能力、不可入孔隙体积系数的变化、吸附滞留与建立流动阻力的关系等物化问题。利用模型对岩芯驱油实验结果进行了拟合,数值模拟结果与实际岩芯驱油结果基本一致。表明该模型能够有效描述疏水缔合聚合物溶液的驱油动态,为疏水缔合聚合物驱的理论研究和现场分析提供了研究方法。
In order to study the rules and dynamics of hydrophobic associating polymer flooding, a mathematical model of hydrophobic associating polymer flooding is built. Based on the laboratory research of hydrophobic associating polymer solution structure, line-shape system and polymer aggregate are jointly used to describe the property variation and flow characteristic of hydrophobic associating polymer solution in porous media. Water phase relative permeability reduction ability under different pore and permeability condition, inaccessible pore volume factor changing along with the porosity and permeability, the relationship between adsorptive retention and flow resistance force are taken into account in this model. The model is used to match the data of core flooding experiment. The simulation result is basically coincident with the core flooding experiment data. It shows that the mathematical model can describe the displacing performance of hydrophobic associating polymer solution effectively. It offers a research method and analytical tool for theoretical investigation and application of hydrophobic associating polymer flooding in the field.
出处
《西南石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第6期171-175,共5页
Journal of Southwest Petroleum University(Science & Technology Edition)
基金
国家863计划'海上油田提高采收率公共技术平台研究'(2004AA617040)
'高渗透厚油层提高采收率的树枝聚合物研究'(2006AA09Z315)
关键词
疏水缔合聚合物
聚集体
数值模拟
数学模型
hydrophobic associating polymer
aggregate
numerical simulation
mathematical model
