Abstract: With the production scale of offshore oil fields expanding, it is increasingly difficult to treat the production water re-injected into the CEP process. When the oil-contaminated water is discharged into the buffer tank, the floating oil is accumulated on the top of the tank with sludge sinking on the bottom. The quality of injected water will become worse and worse if not processed. Based on the on-the-spot investigation of offshore oil fields for many years, Enman Technology (Beijing) Co. Ltd. has independently developed a set of oil-collecting and cleaning device system, which adopts the technology to collect floating oil and the new-type hydraulic jet technology to eliminate sludge. The device can automatically collect oil on the top and eliminate sludge on the bottom at any time. Onshore and offshore application in the past few years confirmed that this system could improve water quality of buffer tank, reduce the work intensity of operators and keep working staff from high-risk service.

Key words: oil-collecting device, cleaning device, water treatment, quality of injected water

摘要： 随着海上油田采油规模的扩大,生产需求增加,生产水系统中,返排液进入CEP流程,处理难度增大,含油污水进入缓冲罐后顶部聚集浮油、底部沉积污泥,如果得不到及时处理,就会越来越严重地影响到注水水质。恩曼技术(北京)有限公司通过多年海上油田现场情况调研,自主研发出一套收油排泥装置系统。该装置采用浮油收集技术、新型水力喷射排泥技术,可随时自动罐顶收油、罐底自动排泥,通过几年先陆地后海洋的现场应用证明,该系统可缓解缓冲罐出水水质,减轻工作人员的劳动强度,使工作人员远离高风险作业,提高注水水质。

关键词: 收油装置, 排泥装置, 水处理, 注水水质