摘  要:目前，我国的机械采油量占总采油量的80%以上。按照抽油装置动力传递方式的不同，机械采油主要包括有杆泵采油、无杆泵采油和气举法采油三大方式，但具体形式多种多样。随着液压技术的不断成熟，将液压技术融入到采油过程中，实现液压泵采油，这种机械采油方法，也是一种无杆泵采油方法。液压泵采油，主要包含两个部分，地面液压系统和井下泵结构。

    本次设计是完成地面液压系统的设计，为井下泵提供足够的液压能，以维持正常的采油过程。通过井下泵所需要的液压力及流量，来计算并选择合适的液压泵、电动机、油管、截止阀、过滤器、油箱、蓄能器等部件，以一定的控制方式来实现下井1500米、柱塞行程5米及冲次为2的采油过程。

关键词：液压泵采油 液压系统 控制方式

Abstract:At present, China's total oil production of mechanical oil production over 80%. Pumping power transmission device according to the different ways, including mechanical oil pump oil rod, rodless oil pump oil and gas lift method three ways, but the specific variety of forms. With hydraulic technology continues to mature, the hydraulic technology into the process of oil, hydraulic oil to achieve, this mechanical recovery methods, but also a rodless pump recovery methods. Hydraulic oil, mainly consists of two parts, the ground structure of the hydraulic system and downhole pump.

　　　This design is the completion of the ground hydraulic system design for downhole hydraulic pump to provide sufficient capacity to maintain normal oil production process. By downhole pump fluid pressure and flow needed to calculate and select the appropriate hydraulic pumps, motors, tubing, valves, filters, tanks, accumulators and other components, in a certain way to achieve the control of downhole 1500 m, 5 m and the piston stroke is 2 oil pumping process.

Keyword: Hydraulic oil; Hydraulic system; Control mode