摘要
通过乳状液稳定性实验考察了孤岛原油乳状液稳定性影响因素。结果表明,低剪切作用下,部分水解聚丙烯酰胺(HPAM)与原油作用1d和54d,所测得其浓相体积分数很快接近零,即HPAM与原油所形成的乳状液稳定性较低。而当溶液中存在50μg/g固体颗粒蒙脱土时,测得其与原油作用1d和54d后的浓相体积分数都约0.08。当溶液中同时含有固体颗粒与HPAM时,测得其与原油作用后所形成的乳状液浓相体积分数很快达到零,固体颗粒与HPAM的协同作用对原油乳状液稳定性有较大影响。另外,随着盐浓度、温度的增加,孤岛原油所形成的乳状液稳定性降低。在30000r/min高速剪切作用下,测得聚合物、固体颗粒模拟水体系与原油间所形成的乳状液浓相体积分数约为0.3,可形成较稳定的乳状液。
The influencing factors of the stability of emulsions of Gudao crude oil were investigated by studying the emulsion stability. The results indicated that the volume fraction of concentrated phase approach 0 soon when the oil and different concentration HPAM solution were reacted for 1d and 54d with low shear rate. It means that emulsion formed by HPAM and crude oil is unstable. The volume fraction of concentrated phase was 0.08 when the oil and 50 μg/g solid particles solution were reacted for 1d and 54d. The volume fraction of concentrated phase approach 0 soon when the oil, HPAM and solid particles solution were contacted. The synergistic reaction of solid particles and polymer have greatly effect on the emulsion stability. With increasing of salt content and temperature, the stability of the emulsion was decreased. The volume fraction of concentrated phase is 0.3, when the oil, HPAM and solid particles solution were contacted with 30000 r/min shear rate. It can form stable emulsions.
出处
《应用化工》
CAS
CSCD
2005年第1期15-18,共4页
Applied Chemical Industry
基金
国家重点基础研究专项经费资助(G1999022505)
