Shear strengthening viscosity and shear-rate-dependent modulus model for a Shengli crude oil |
| |
| Authors: | Shuxin Huang Ying Zou Xin Chen Wenxiang Wu |
| |
| Affiliation: | 1. Department of Engineering Mechanics, Shanghai Jiao Tong University, Shanghai, China;2. Chemical Engineering Department, University of Massachusetts, Amherst, Massachusetts, USA;3. Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts, USA;4. MOE Key Laboratory of Hydrodynamics, Shanghai, China;5. Petroleum Processing Department, East China University of Science and Technology, Shanghai, China;6. College of Petroleum Engineering, Northeast Petroleum University, Daqing, China |
| |
| Abstract: | The steady shear viscosity of a Shengli waxy crude oil at the temperature of 3°C to 4°C, higher than its gel point, was measured by using a parallel-plate rheometer, which shows a shear thickening behavior in the shear rate range of 10?2–10?1 s?1. A spectrum model proposed in our previous work was modified here by considering the modulus change in the spectra, which could be caused by a shear-induced varying internal structure in the crude oil. The shear strengthening viscosity of the Shengli crude oil can be described well by the changing-spectrum viscosity model. |
| |
| Keywords: | shear thickening shear thinning Shengli crude oil steady shear viscosity model |
|
|
