gelled waxy crude oil;
structural properties;
viscoelasticity;
critical linear shear strain;
critical linear shear stress;
yield stress;
yield strain;
TRANSITION;
D O I:
10.1016/j.petrol.2008.12.018
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
The structural properties of Daqing gelled waxy crude oil were studied with a controlled-stress rheometer under oscillatory shear mode. Our results demonstrate that the gelled waxy crude oil shows viscoelastic properties. The linear viscoelastic region and yielding of crude oil can be determined not only by the critical linear shear stress (tau(cl)) and yield stress (tau(y)), but also by the critical linear shear strain (gamma(cl)) and yield strain (gamma(y)) respectively. With the decrease of test temperature, tau(cl) and tau(y) increased greatly while gamma(cl) and gamma(y) decreased gradually. The crude oil showed more elastic at lower temperatures. The frequency had little effect on the structure of crude oils in the measured range. (c) 2009 Elsevier B.V. All rights reserved.
机构:
Northeast Petr Univ, Key Lab Enhanced Oil Recovery, Minist Educ, Daqing 163318, Heilongjiang, Peoples R ChinaNortheast Petr Univ, Key Lab Enhanced Oil Recovery, Minist Educ, Daqing 163318, Heilongjiang, Peoples R China
Guo, Liping
Han, Xue
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h-index: 0
机构:
Technol Res Inst, Daqing Oil Field Co Ltd, Oil Prod Plant 8, Water Inject Proc Room, Daqing 163514, Heilongjiang, Peoples R ChinaNortheast Petr Univ, Key Lab Enhanced Oil Recovery, Minist Educ, Daqing 163318, Heilongjiang, Peoples R China
Han, Xue
Lei, Yun
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h-index: 0
机构:
Changzhou Univ, Jiangsu Key Lab Oil & Gas Storage & Transportat T, Changzhou 213164, Jiangsu, Peoples R ChinaNortheast Petr Univ, Key Lab Enhanced Oil Recovery, Minist Educ, Daqing 163318, Heilongjiang, Peoples R China
Lei, Yun
Wang, Lei
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h-index: 0
机构:
Daqing Oil Field Co Ltd, Explorat & Dev Res Inst, Daqing 163712, Heilongjiang, Peoples R ChinaNortheast Petr Univ, Key Lab Enhanced Oil Recovery, Minist Educ, Daqing 163318, Heilongjiang, Peoples R China
Wang, Lei
Yu, Pengfei
论文数: 0引用数: 0
h-index: 0
机构:
Changzhou Univ, Jiangsu Key Lab Oil & Gas Storage & Transportat T, Changzhou 213164, Jiangsu, Peoples R ChinaNortheast Petr Univ, Key Lab Enhanced Oil Recovery, Minist Educ, Daqing 163318, Heilongjiang, Peoples R China