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一般说来,设计一项注水工程,选择一个理想的供水水源是困难的。考虑到经济性,应该利用如下几种水源:浅层水、河水和蓄水池的水。这些水几乎都含有溶解气体。气体的存在易引起腐蚀,特别是酸性水更加严重。很明显,含氧清水如在注入之前与采出水混合,密闭系统和贮水罐上的气封都会失去作用。鉴于对含氧清水与采出水混合有很多异议,在无其它办法可采取的地方,分注也是一种好办法。业已证明,在使用沉淀池和过滤器的地方,采用开式系统是不理想的。因此,常选用完全隔绝空气的密闭系统。这种系统,运转上问题较少。空气进入注水系统的主要影响和对其识别的简单方法,将在“腐蚀”一章中论述。在注水地区,开始是选择容易得到水的水源作为给水水源。一般先在浅层打井以解
In general, it is difficult to design a waterflooding project and to choose an ideal water supply. Taking economy into account, several sources of water should be used: shallow water, river water and reservoir water. Almost all of this water contains dissolved gases. The presence of gas easily lead to corrosion, especially acidic water is more serious. Clearly, oxygenated water, if mixed with produced water prior to injection, will lose its effectiveness as a gas seal on both the containment system and the water storage tank. Given the many objections to the mixing of oxygenated and produced water, dispensing is also a good idea where no other solution is available. It has proven to be undesirable to use open systems where settling tanks and filters are used. Therefore, often use a completely isolated air closed system. This system, running less problems. The main impact of air entering the watering system and its simple way of identifying it are discussed in the chapter “Corrosion.” In the waterflooding area, the beginning is to choose the water source that is easy to get water as the water supply source. Generally first shallow wells to solve