水力保护式钻井泵活塞现场试验评析  

Evaluation of field test of hydraulic protective type slush pump piston

作　　者：张方升[1] 孙绛雪 李树臻[1] 孙殿雨[2] 

机构地区：[1]胜利石油管理局职工大学,山东省东营市257004 [2]胜利石油管理局评估咨询公司

出　　处：《石油机械》1998年第12期14-15,共2页China Petroleum Machinery

摘　　要：采用活塞试验装置对水力保护式活塞与几种国产普通活塞在钻井现场作了对比试验，在相同工况下测试了泵缸工作温度、活塞使用寿命、钻井波含砂量等参数。对试验数据和活塞破坏形式的综合分析表明，利用液体冲洗缸壁，阻止磨硕性颗粒进入摩擦副，从而提高活塞和缸套寿命的水力保护原理是可行的；水力保护式活塞具有寿命长、活塞一缸套摩擦副冷却效果好、泵的机械效率高及对钻井液含砂量不敏感等优点。同时也证明采用大直径球面活塞心来减小活塞心与缸套间的间隙可有效地防止活塞的偏磨，提高抗啃伤寿命。The hydraulic protective type piston and other homemade pistons are tested on drilling site, the working temperatureof prunp cylindels, sel1fice life of pistons, sand content in drilling fluid are measured under the same working conditionsComprehensive analysis of test data and failule pattems of pistons shows d1at, hydraulic protection is feasible in terms ofprinciple, the hydraulic protective type piston has long life, the cylinder sleeve-piston friction pair has good cooling effect, and the pump, has high mechanical efficiency and is insensitive to sand content in drilling fluid. It is also provedthat the ahrasion of the piston can be prevented effectively hy decleasing h1e clearance hetWeen the piston and cylindersleeve hy adopting spherical piston core with large diameter.

关 键 词：钻井泵 活塞 现场试验 水力保护式 

分 类 号：TE926.07[石油与天然气工程—石油机械设备]