Pump shaft seals use mechanical seal, pump top and bottom, respectively, equipped with water injection plug and the drain plug.
泵的轴封采用机械密封，泵体顶部和底部分别装有注水、放泄的螺塞。
The water from offshore oil field chiefly comes from injection water, edge water and bottom water.
海上油田产出水主要来源于注入水、边水和底水。
The anchoring or set to the artificial bottom hole of the separate injection pipe string has solved the creep of the pipe string resulted from the unstable water injection pressure.
分注管柱实施锚定或支撑到人工井底，克服了管柱因注水压力不平稳等原因造成的管柱蠕动现象；
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