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对油田三元复合驱生产集输系统的结垢问题进行了全面系统地研究,通过仪器分析与化学分析方法(包括红外光谱仪(FTIR),X射线衍射(XRD),原子吸收光谱法(AAS)、原子发射光谱法(ICP-AES)、化学分析法(CA))等手段确定了三元复合驱输油管线内堵塞物成分,主要成分是碳酸盐、硅酸盐和有机物。成垢原因是因为在油田作业过程中,管道中积累了大量的Ca~(2+)、Mg~(2+)、Si~(4+)、CO_3~(2-)等成垢离子,导致管道中生成无机盐垢,同时由于悬浮物的存在,也促进了垢的生成。根据现场实际情况,可以通过稳定体系阳离子,破坏垢质生长等方面进行防垢。
In this paper, a comprehensive and systematic study was made on the fouling problems of the production and transportation system of ASP flooding in oilfields. Instrumental analysis and chemical analysis methods (including FTIR, XRD and AAS) , Atomic emission spectrometry (ICP-AES), chemical analysis (CA)) and other means to determine the block composition of oil in the ASP flooding pipeline, the main component is carbonate, silicate and organic matter. The reason for scale formation is that a large amount of scale-forming ions such as Ca2 +, Mg2 +, Si4 + and CO3- (2-) accumulate in the pipeline during oilfield operations, resulting in Pipeline generated inorganic salt scale, at the same time due to the presence of suspended solids, but also promoted the formation of scale. According to the actual situation on site, you can stabilize the system of cations, destruction of scale growth and other aspects of anti-scaling.