破乳剂 (Demulsifiers)
产品概述
在原油生产过程中,会产出多相流体。伴随原油产出的还有天然气和一定量的水(通常是盐水),随着储层压力衰竭,含水的比例逐步升高。
During the production of crude oil, a multi-phase fluid is produced. Co-produced with the oil are natural gas and an amount of water, usually saline, which as the reservoir is depleted, can be present in quite large proportions.
作用机理
破乳剂通过中和乳化剂作用实现油水分离:
The demulsifier works by neutralizing the emulsifying agent:
吸附到油水界面,取代天然乳化剂
Adsorbs at the oil/water interface, displacing natural emulsifiers
中和界面电荷,降低界面张力
Neutralizes interfacial charges and reduces interfacial tension
促进水滴聚结和沉降
Promotes coalescence and settling of water droplets
技术指标
相对溶解度值 (RSN) 是重要配方指标:
The Relative Solubility Number (RSN) is a key formulation indicator:
应用优势
破乳效率高,脱水速度快
适用温度范围广,适应性强
添加量低,综合成本优势明显
产品性能稳定,储存周期长
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