液力平衡式增压泵的故障原因分析及工艺设计改进建议
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摘要
增压注水是大庆外围油田提高注水系统效率的有效措施之一,但是在实际生产过程中,存在机泵设计能力与应用工况差别大、设备故障率高的问题,严重影响了增压工艺的使用效果。目前大庆外围油田在用的增压设备以液力平衡式增压泵为主,通过计算增压泵的平衡率和内部部件的受力情况,从压力平衡的角度分析机泵的故障原因,提出了分工况设计的建议,以弥补开发预测的不确定性和机泵应用工况的局限性所引起的设备故障率高的缺陷,从而延长增压泵的使用寿命,降低设备的维修费用,保证机泵的高效合理化应用,为注水系统的优化运行提供了保障。
Boosting pressure for water injection is one of the effective measures to improve the efficiency of water injection system in peripheral oilfield. However, in the actual production process,there are problems such as big difference between pump design capacity and application conditions and high fault ratio of equipment,which have great impact on the application effect of booster technology.The hydraulic balance booster pump is the main booster equipment in peripheral oilfields of Daqing at present. Therefore,the reasons of the equipment failure are analyzed from the point of pressure balance by calculating the balance rate of the booster pump and the stress condition of the internal parts, and the suggestion of design according to different working conditions is put forward to make up for the high failure rate because of the uncertainty of development prediction and the limitation of working conditions of the pump. By doing so,the service life of the pump can be prolonged,the cost of equipment maintenance can be reduced,the efficient and rational use of the pump can be ensured,and the optimal operation of the water injection system can be guaranteed.
Boosting pressure for water injection is one of the effective measures to improve the efficiency of water injection system in peripheral oilfield. However, in the actual production process,there are problems such as big difference between pump design capacity and application conditions and high fault ratio of equipment,which have great impact on the application effect of booster technology.The hydraulic balance booster pump is the main booster equipment in peripheral oilfields of Daqing at present. Therefore,the reasons of the equipment failure are analyzed from the point of pressure balance by calculating the balance rate of the booster pump and the stress condition of the internal parts, and the suggestion of design according to different working conditions is put forward to make up for the high failure rate because of the uncertainty of development prediction and the limitation of working conditions of the pump. By doing so,the service life of the pump can be prolonged,the cost of equipment maintenance can be reduced,the efficient and rational use of the pump can be ensured,and the optimal operation of the water injection system can be guaranteed.
引文
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[3]于兴才,李彦,时彦波.论柱塞泵故障维修与管理[J].化工管理,2014(2):115.YU Xingcai,LI Yan,SHI Yanbo.Failure maintenance and management of plunger pump[J].Chemical Enterprise Management,2014(2):115.
[4]白松仁,周国强,别锋锋.往复式柱塞泵的故障诊断[J].油气田地面工程,2015,34(2):63-64.BAI Songren,ZHOU Guoqiang,BIE Fengfeng.Fault diagnosis for reciprocating piston pump[J].Oil-Gasfield Surface Engineering,2015,34(2):63-64.
[5]史改芳,张立举,陈喜平.3H-8/450型增压注水泵液力端改造[J].石油矿场机械,1999,28(4):24-26.SHI Gaifang,ZHANG Liju,CHEN Xiping.Reengineering of hydraulic end of 3H-8/450 supercharged water injection pump[J].Oil Field Equipment,1999,28(4):24-26.
[6]张江林.液力平衡增压注水泵的使用及平衡改造[J].江汉石油职工大学学报,2010,23(2):80-84.ZHANG Jianglin.How to use and remould hydraulic balanced booster pump for waterflooding[J].Journal of Jianghan Petroleum University of Staff and Workers,2010,23(2):80-84.
[7]王雨团,王别好,赵秦静.吸入压力变化对液力平衡式增压注水泵的影响[J].石油矿场机械,2015,44(7):92-94.WANG Yutuan,WANG Biehao,ZHAO Qinjing.Influence of changing suction pressure on balanced hydraulic booster injection pump[J].Oil Field Equipment,2015,44(7):92-94.
[8]高红霞,张伟,王同庆,等.注水增压泵运行故障诊断与技术改进[J].科学与财富,2015,7(18):93.GAO Hongxia,ZHANG Wei,WANG Tongqing,et al.Fault diagnosis and technical improvement of water injection booster pump[J].Science&Wealth,2015,7(18):93.
[9]王平,任富兴,王岩鹏.液力平衡增压柱塞泵平衡特点分析[J].石油机械,1997,25(1):26-28,31.WANG Ping,REN Fuxing,WANG Yanpeng.Balance characteristic of hydraulic balanced booster plunger pump[J].China Petroleam Machinery,1997,25(1):26-28,31.
[10]贾品元.柱塞式注水泵易损件寿命分析及提高措施[J].石油矿场机械,2016,45(6):100-104.JIA Pinyuan.Life analysis and improvement measure of the wear parts of piston injection pump[J].Oil Field Equipment,2016,45(6):100-104.