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举升原理是通过套管式反循环喷射泵(动力液从油套管环空进入,由油管返出)将油层产出液举升到一定高度,再由有杆泵系统接替举升至地面。介绍了接替举升系统的工艺设计方法、喷射泵参数匹配设计方法和两泵之间的关联设计方法。举升工艺在胜利桩西油田的桩52-10井进行了现场试验,设计有杆泵下深1650m,喷射泵下深2250m,接替高度600m。结果显示,在试验前后有杆泵系统相似的情况下,接替举升使抽油机最大负荷与最小负荷的差值变小,且最大负荷有较大下降,油井日产液、日产油增加。表明接替举升有效地改善了抽汲系统的工况,具有明显的增产效果。
Lifting principle is through the casing type reverse circulation jet pump (power from the oil casing ring into the loop from the tubing) will be raised to a certain height oil production fluid, and then by the rod pump system to lift to the ground . The process designing method of replacing the lifting system, the matching method of jet pump parameter matching and the related design method between two pumps are introduced. The lift test was carried out on pile 52-10 in Shengli Pile West Oilfield. The designed depth of rod pump was 1650m, the depth of jet pump was 2250m, and the succession height was 600m. The results show that under the condition of similar rod pump system before and after the test, the difference between the maximum load and the minimum load of the pumping unit becomes smaller when the lift pump is replaced, and the maximum load is greatly decreased. The daily oil production and the daily oil production increase. It shows that the pick-up lift effectively improves the working condition of the pumping system and has obvious yield increase effect.