金属隔膜防砂抽油泵的研制与应用  

Development and Application of Metal Diaphragm Sand Control Subsurface Pump

作　　者：张正禄[1,2] 刘运荣[1,2] 李红[1,2] 钟超[3] 魏小梅[4] 

机构地区：[1]中石化石油工程机械有限公司研究院 [2]中国石化石油机械装备重点实验室 [3]江汉石油管理局江汉采油厂 [4]西南石油大学研究生院

出　　处：《石油机械》2013年第12期121-123,共3页China Petroleum Machinery

基　　金：江汉石油管理局科研项目"隔膜式防砂抽油泵的研究"(JKX4311002)

摘　　要：针对目前在用的井下抽油泵存在的2大技术难题以及大部分防砂卡抽油泵没有广泛应用的现状,在分析和借鉴现有技术的基础上,研制了金属隔膜防砂抽油泵。该泵主要由泵筒、柱塞、上部阀罩、上游动阀总成、下部阀罩、下游动阀总成和金属隔膜组成。工作时柱塞上、下部的金属隔膜被高压原油压在泵筒上,将含有砂粒的油流与抽油泵活动部件的缝隙隔绝,使砂粒不能进入泵筒与柱塞的接触缝隙,从而达到防砂目的。现场应用结果表明,金属隔膜防砂抽油泵起到了防砂效果,可提高生产效率,泵效达到69.7%。There are currently two major technological problems with downhole oil-well pump in service. Most of the sand control subsurface pump has not been applied extensively. Therefore, on the basis of analyzing and referring to the technologies available, the metal diaphragm sand control subsurface pump was developed. The pump mainly consists of barrel, plunger, upper bonnet, upper traveling valve assembly, lower bonnet, lower traveling valve assembly and metal diaphragm. In operation the upper and lower metal diaphragms of plunger are pressed on the pump barrel by high pressure crude oil, isolating the clearance of sandy oil flow and moving parts of the pump so as to prevent sand from entering the contact gap of barrel and plunger and thus achieve the purpose of sand control. The field application shows that the metal diaphragm sand control pump has achieved the effect of sand control, improving the production efficiency. The pump efficiency reaches 69.7 %.

关 键 词：防砂抽油泵 金属隔膜 砂卡 密封刮砂 过滤沉砂 

分 类 号：TE933[石油与天然气工程—石油机械设备]