生物基磺酸盐型三聚表面活性剂的合成及驱油性能研究OA
Synthesis and oil displacement performance of bio-based sulfonate trimer surfactants
以腰果酚及三聚氯氰等为原料,合成了一种生物基磺酸盐型三聚表面活性剂(3C15BSA),并采用FTIR和 1H NMR表征及ICP元素分析确定了 3C15BSA的分子结构;对 3C15BSA的表/界面性能和乳化性能进行了评价;并建立分子动力学模型,对 3C15BSA进行分子和原子层面的驱油性能模拟研究.研究结果表明,相较于传统的单链表面活性剂,3C15BSA具有更高的表/界面活性,临界胶束浓度和临界表面张力分别为0.344 mmol/L和30.28 mN/m;3C15BSA分子亲水基团之间的多个N,O杂原子氢键作用,使得 3C15BSA分子在油水界面分布均匀;3C15BSA二元驱的采收率相较于传统水驱及聚合物驱有着明显提高,且二元驱后的原油饱和度相聚传统水驱及聚合物驱有着明显的下降,残余油动用率显著提高.
A bio-based sulfonate trimer surfactant(3C15BSA)was synthesized from cardanol and cyanuric chloride,and its molecular structure was characterized by FTIR,1H NMR,and ICP elemental analysis.The surface/interface and emulsifying properties of 3C15BSA were evaluated.Molecular dynamics models were established to simulate the oil-displacing performance of 3C15BSA at the molecular and atomic levels.The results show that 3C15BSA has higher surface/interface activity than traditional single-chain surfactants,with critical micelle concentration and critical surface tension values of 0.344 mmol/L and 30.28 mN/m,respectively.The multiple hydrogen-bond interactions of N and O heteroatoms between the hydrophilic groups of 3C15BSA molecules make the 3C15BSA molecules evenly distributed at the oil-water interface.Compared with traditional water flooding and polymer flooding,3C15BSA binary flooding results in significantly higher oil recovery,lower crude oil saturation,and a markedly improved residual oil mobilization rate.
杨二龙;王晨旭
东北石油大学 石油工程学院 提高油气采收率教育部重点实验室,黑龙江 大庆 163318东北石油大学 石油工程学院 提高油气采收率教育部重点实验室,黑龙江 大庆 163318
能源科技
生物基三聚表面活性剂界面张力分子动力学模拟驱油
bio-basedtrimer surfactantinterfacial tensionmolecular dynamics simulationoil displacement
《石油化工》 2026 (3)
380-387,8
国家自然科学基金项目(52274037).
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