胜利油田胜坨原油乳化特性研究

A Study on the Emulsifiable Characteristics of Shengtuo Crude Oil of Shengli Oil Field

摘要:

研究了胜利油田胜坨原油以及从中分离出的沥青、胶质和烷烃的乳化特性及其协同效应。结果表明,胜坨原油经稀释后能与酸性水、中性水及碱性水乳化形成超高含水量(>90%)w/o型乳状液。分散在烷烃中的沥青以及水相中存在的高价电解质对乳状液具有重要的稳定作用。在酸性尤其是碱性水中,胶质及沥青中所含的极性组分能与水相中的碱或酸反应生成少量低表面活性的水溶性表面活性剂,但不足以使w/o型乳状液破乳或转为o/w型。胶质与碱水之间的动态最低界面张力可达10~(-2)mN/m,与碱水乳化时,胶质和沥青之间存在最强的协同效应。

Abstract:

The emulsifiable characteristics of Shengtuo crude oil of Shengli oil field arestudied. The individual emulsibility of asphalt, colloid matter and paraffin seperated fromthe crude oil and the synergistic actions among them are also studied. The results sh