Hydroxysulfobetaine/Hydrolyzed Polyacrylamide Complex Systems for Gudao Heavy Oil Recovery: A Dynamic Interfacial Tension Study |
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| Authors: | T Chen G Zhang J Ge P Jiang X Fu L Jin |
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| Affiliation: | School of Petroleum Engineering, China University of Petroleum (East China) , Qingdao , China |
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| Abstract: | Abstract A complex system that consists of hydroxysulfobetaine and hydrolyzed polyacrylamide has been studied. It is indicated that the complex system is of high viscosity and can reduce the interfacial tension between Gudao heavy oil and solution to ultra-low value. The interfacial tension of complex system in formation water is influenced simultaneously by the concentration of polymer and the salt content. The adsorption experiment shows that hydrolyzed polyacrylamide can prevent hydroxysulfobetaine from being adsorbed on the quartz sands excessively. It can be concluded that the hydroxysulfobetaine/hydrolyzed polyacrylamide complex system is capable of satisfying the requirements of displacement system for EOR. |
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| Keywords: | betaine complex system heavy oil hydrolyzed polyacrylamide interfacial tension |
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