柱塞式注水泵易损件寿命分析及提高措施

Life Analysis and Improvement Measures of the Wear Parts of Piston Injection Pump

长庆油田采油五厂采出水水型主要为氯化钙型,矿化度较高,地层水中普遍含有Ba2+、Sr2+、Cl-、HCO-3等,导致柱塞式注水泵易损件寿命较短,维修更换易损件占用时间较多,制约着注水设备完好率的提高。以长庆油田部分站点在用柱塞式注水泵为研究对象,进行了多次现场调研,对柱塞式注水泵柱塞、盘根、阀组等易损件的失效形式和失效原因进行了统计分析,提出了提高易损件寿命的改进措施,进行了现场应用,取得了良好效果。

The produced water effluent from No.5oil production plant of Changqing oil field is mainly of calcium chloride,formation water generally contain high concentrations of Ba2+,Sr2+,Cl-,and HCO-3,etc.,leads to shorten life of wearing parts of plunger water injection pump,needs more time to maintenance and replace wearing part and restricts the improvement of water injection equipment.In view of this,some field investigations in Changqing oilfield were made for piston injection pump as the research object,and the statistic analysis was made for failure modes and failure of plunger piston pump,packing,valve group,wearing parts.A corresponding improvement measures is put forward.Application and the field application are carried out to obtain good results,and the feasibility of the measure is proved.