摘要
在克拉玛依二中区三元复合驱先导试验区采出液中外加胶质、沥青质、环烷酸等天然乳化剂进行破乳实验，考察这三种天然乳化剂对四种不同ＨＬＢ值（亲水亲油平衡值）的ＡＰ型非离子破乳剂破乳脱水的影响。实验结果表明，外加的天然乳化剂在一定程度上影响破乳剂的分水速度和脱水率，最终影响破乳效果。从破乳剂分子本身的结构特性和天然乳化剂的乳化作用等方面对实验结果给予一定的解释。用标记同位素示踪法定量测定了破乳后油和水中的微量破乳剂含量。
The demulsificalion/dehydration of the crude oil from an experimental ASPflooding area of Middle District , Karamay, with additional natural emulsifiers introduced, single or in mixture, by four 3Hlabelled AP type block polyether demulsifiers of HLB value 5.014.5 is studied. The experimental results indicate that asphaltene influences the dehydrating efficiency of the demulsifiers most badly, followed by resin and naphtenic acid. For every crude oil sample, blank or with natural emulsifier(s) added, the highest dehydration rate, the largest demulsifier amout in the oil phase separated and the lowest demulsifier amount in the water phase separated are obtained with demulsifier AP211 of HLB value=5.0. These phenomena are reasoned.
出处
《油田化学》
CAS
CSCD
北大核心
1999年第1期27-30,共4页
Oilfield Chemistry
关键词
天然乳化剂
三元复合驱油藏
原油
破乳
脱水
Natural Emulsifiers
Produced Fluids
ASPFlooded Reservoirs
Demulsification/Dehydration of Crude Oil
AP Type Nonionic Demulsifiers
Labelled Demulsifiers
