Hydroxysulfobetaine/Hydrolyzed Polyacrylamide Complex Systems for Gudao Heavy Oil Recovery: A Dynamic Interfacial Tension Study

2012 ◽  
Vol 30 (14) ◽  
pp. 1433-1440 ◽  
Author(s):  
T. Chen ◽  
G. Zhang ◽  
J. Ge ◽  
P. Jiang ◽  
X. Fu ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Complex Systems ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Heavy Oil Recovery ◽  
Dynamic Interfacial Tension ◽  
Hydrolyzed Polyacrylamide

Foam Flooding with Ultra-Low Interfacial Tension to Enhance Heavy Oil Recovery

2014 ◽  
Vol 35 (3) ◽  
pp. 403-410 ◽  
Author(s):  
Shuo Zhang ◽  
Guan-Cheng Jiang ◽  
Le Wang ◽  
Hai-Tao Guo ◽  
Xin-guo Tang ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Heavy Oil Recovery ◽  
Low Interfacial Tension ◽  
Foam Flooding

scholarly journals Associating Polymer Networks Based on Cyclodextrin Inclusion Compounds for Heavy Oil Recovery

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Xi Li ◽  
Zheng Shu ◽  
Pingya Luo ◽  
Zhongbin Ye
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Polymer Networks ◽  
Adsorbed Layer ◽  
Water Soluble ◽  
Heavy Oil Recovery ◽  
Original Oil In Place ◽  
Hydrolyzed Polyacrylamide ◽  
The Relationship ◽  
Associating Polymer

This work evaluates an approach to improve the enhanced heavy oil recovery performance of hydrophobic associating polymer. A polymeric system based on water-soluble hydrophobic associating polymer (WSHAP) and cyclodextrin (CD) polymer was proposed in this work. Addition of CD polymer to WSHAP forms interpolymer bridges by inclusion of CD groups with hydrophobic tails, and thereby the network structure is strengthened. The proposed system offers good viscoelasticity, pronounced shear thinning, and interesting viscosity-temperature relations. Sand pack tests indicated that the proposed system can build high resistance factor during the propagation in porous media, and its moderate adsorption phenomenon was represented by the thickness of the adsorbed layer. The relationship between effective viscosity and oil recovery increment indicated that the proposed system can significantly reduce the residual oil saturation due to the “piston-like” propagation. The overall oil recovery was raised by 5.7 and 24.5% of the original oil in place compared with WSHAP and partially hydrolyzed polyacrylamide (HPAM), respectively.

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