西南石油大学学报(自然科学版)Issue(1):173-178,6.DOI:10.3863/j.issn.1674-5086.2013.01.027
水基泡沫流变特性研究进展
Investigation Advances in Rheological Properties of Water Based Foam
摘要
Abstract
Water based foams have been widely used in oil well drilling,foam flooding,mineral flotation and other fields. Because of the complexity and instability of their own structure,the exact description of their rheological properties should consider various factors such as liquid film drainage,gas diffusion,foam mass and structure,foam compressibility,wall slip, bubble size compared with measuring system,environment temperature and pressure and so on. This leads to no generally accepted theory for their rheological behavior. A widely available method of controlling the wall slip is to increase surface roughness of the flow channels such as rotor surface or pipe wall during the experimental investigation,and some theoretical modification methods deduced from some appropriate hypotheses have a better adaptability. The volume equalized constitutive equation assumes that the friction factor of foam flow in pipe is a constant,which can solve the difficulty of its pressure drop calculation due to the foam compressibility to some extent. It is widely believed that the foam rheological properties can be satisfactorily described by power law or Herschel-Bulkley models,but the existence of“yield stress”for the aqueous foams is being disputed due to different measurement conditions.关键词
水基泡沫/流变性/壁面滑移/滑移修正/可压缩性Key words
water based foam/rheological behavior/wall slip/slip correction/compressibility分类
能源科技引用本文复制引用
敬加强,代科敏,杨露,安云朋,赵川东..水基泡沫流变特性研究进展[J].西南石油大学学报(自然科学版),2013,(1):173-178,6.基金项目
国家自然科学基金项目“稠油流动边界层在水基泡沫作用下的阻力特性研究”(51074136) (51074136)
高等学校博士点基金项目“稠油掺水流动黏度测定与压降预测研究”(20115121110004) (20115121110004)