A new type of nano material was developed in order to reduce the viscosity of high-wax crude oil.The preparation of mesoporous silica nanoparticles (MSN) was by template method and sol-gel process,and through the solution polymerization to prepare the oil-soluble viscosity reducer agent PSMA-AM/MSN.The structure and property of mesoporous silica nanoparticles (MSN) and modified mesoporous silica nanoparticles (MSN) were characterized and analyzed by BET,FT-IR,TGA,TEM and water contact angle testing.It was applied to Daqing linyuan high-wax heavy oil and Daqing tieling high-wax heavy oil,and the viscosity reducing test was studied.The results showed that MSN with uniform particle size,high specific surface area and distinct pore structure,was synthesized successfully by the novel method.And the PSMA-MA/MSN exceled at hydrophobicity,which allowed them to keep stable in organic solvent,thereby markedly reducing the viscosity of heavy oil system.
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基金资助
国家重点基础研究发展计划(973计划)(2008CB617508)
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