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在油田采油作业中,常通过人工注水提高地层压力,使油层具有强有力的驱油条件,达到长期稳产高产。油田注水泵主要分为离心式注水泵和柱塞式注水泵(下称柱塞泵)两种。柱塞泵具有扬程高、排量小、效率高、电力配套设施简单(指380V电压系统)等特点,适用于注水量低、注水压力高的中低渗透率油田或断块油田,应用范围较广。由于设备工作压力大,负荷高,润滑油就成为柱塞泵能否安全经济运行的主要因素。目前柱塞泵一般使用生产厂家推荐的柴油机油作为润滑油,使用中存在黏度指标下降快、换油周期短等问题。本文拟从柱塞泵工况分析、柱塞泵对润滑油的要求和指标的确定、柱塞泵专用润滑油现场实机试验情况三个方面,论述如何正确选择柱塞泵润滑油防止设备磨损,以使柱塞泵获得更长的使用周期。
In the field of oil production operations, often through artificial injection of water to raise formation pressure, the reservoir has a strong oil displacement conditions, to achieve long-term stable and high yield. Oilfield water injection pump is divided into centrifugal water injection pump and plunger water injection pump (hereinafter referred to as piston pump) two. Piston pump has the advantages of high lift, low displacement, high efficiency and simple power supply facilities (referring to 380V voltage system). It is suitable for medium and low permeability oilfield or fault block oilfield with low water injection and high water injection pressure. wide. Due to the equipment working pressure, high load, the lubricant becomes a safe and economical operation of the plunger pump the main factor. The current piston pump manufacturers generally recommend the use of diesel oil as a lubricant, there is the use of viscosity index decline faster, short oil change intervals and other issues. This article from the piston pump condition analysis, piston pump lubricant requirements and indicators to determine the plunger pump for the scene of the real machine test conditions, discusses how to correctly select the plunger pump lubricant to prevent equipment wear and tear , So that the plunger pump to obtain a longer life cycle.