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原油从地下开采出来后,都不同程度的含有水,包括乳化水、溶解水、游离水等。含水原油不仅在集输技术上难度大,而且对以后的储运及油品加工也带来了诸多不利因素。为了使开采的原油含水达到商品原油的含水指标要求,原油在联合站外输前,必须对含水原油进行脱水处理,保证外输前原油含水控制在5‰以内,联合站进行原油脱水工艺一般采取重力沉降、加热、加药(破乳剂)、还有本文重点介绍的,也是最常用的电脱水工艺技术。
After crude oil is mined from the ground, it contains water in varying degrees, including emulsified water, dissolved water and free water. Water-based crude oil is not only difficult to set-up and transport technology, but also brings many unfavorable factors to future storage, transportation and processing of oil products. In order to make the crude oil extracted from the crude oil to meet the requirements of the water content of crude oil requirements, the crude oil in the joint station before the export, the crude oil must be dehydrated to ensure that crude oil before export control of water within 5 ‰, the joint station for crude oil dehydration process generally taken Gravity sedimentation, heating, dosing (demulsifier), as well as this article focuses on, but also the most commonly used electrical dehydration technology.