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随着原油劣质化趋势和大部分油田进入高含水开采阶段,传统三相分离手段存在分离级数和设备多、油水分离效率低、电脱水运行不稳定等问题。针对此现状研究开发了静电聚结原油脱水技术并进行现场应用。该技术适用于高含水原油,采用复合电极、气液分离和油水分离分开进行的结构设计,应用连续可调的电压控制技术和各种安全保障技术,研制出新型静电聚结原油脱水设备。现场应用结果表明,静电聚结原油脱水技术对高含水原油有很好的脱水效果,对进口含水量超过80%的原料,一级脱后含水小于2%,最低可达到0.7%,有效提高了油水分离效率,并且当含水量在80%～98%时亦可适用,将其应用于陆上或海上油田采出液脱水,可减少设备级数和占地面积、节省设备投资、提高分离效率,有较好的应用前景。
With the trend of low quality of crude oil and most of the oilfields entering the stage of high water cut exploitation, the traditional three-phase separation methods have many problems such as separation series and equipment, low oil-water separation efficiency and instability of electric dehydration. According to the status quo research and development of electrostatic coalesced crude oil dehydration technology and on-site applications. The technology is applicable to the structural design of high crude oil with composite electrode, gas-liquid separation and separation of oil and water separately. The application of continuously adjustable voltage control technology and various safety protection technologies has resulted in the development of a new type of electrostatic coalescing crude oil dehydration equipment. The field application results show that the electrostatic coalescence crude oil dehydration technology has a good dehydration effect on high-water-content crude oil. For imported raw materials with water content over 80%, the first-stage water content is less than 2% and the minimum is 0.7%, effectively increasing Oil-water separation efficiency, and when the water content of 80% ~ 98% can also be applied to its onshore or offshore oil field dewatering, can reduce the number of equipment and land area, saving equipment investment and improve the separation efficiency , Have better application prospects.