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美国斯德森石油公司为其东林登油田的 1 5口抽油井 ,购置和安装了有杆泵控制器。这些油井的井深在 3 4 0 8m左右 ,原油相对密度 0 .81 6～ 0 .797,含水 5 %～ 5 0 %。 改进油井生产的有效途径 ,是确定合理的油井开井周期。EproductionSolution公司的有杆泵控制器可根据控制器上存储的时间周期 ,准确调节开关井时间 ,泵抽空时可立即关井 ,而在泵充满时开井 ,从根本上消除了泵抽空和抽吸不足现象。 油井安装了有杆泵控制器后 ,杆管故障减少了 3 1 %,电费节约了 4 0 %,年节约生产成本 5万美元。同时 ,还大幅度减少了液击、杆管磨损和泵损坏。其原因是杆断后 ,泵的游动部分就会撞入泵筒 ,使泵加速或立即损坏。有杆泵控制器可将液面撞击限制在 1～ 2个冲次内 ,大幅度延长杆、管和抽油泵的使用寿命。采用有杆泵控制器后可使泵在实际抽油时运转 ,大量降低电费。同时 ,也可延长井下设备和电机的使用寿命 ,延长油井免修期。最后 ,采用有杆泵控制器可保证井下液面在泵的每一冲次时使泵充满。较低的液面可降低油套环空加压 ,使地层液流更多地流向井筒。这样 ,可使油井保持合理液面 ,增加油井产量。
The United States of America Sidson Oil Company for the East Linden oilfield 15 pumping wells, purchased and installed rod pump controller. The well depth of these wells is about 3400m, the relative density of crude oil is 0.81 6-0.797, and the water content is 5% ~ 50%. An effective way to improve the production of oil wells is to determine a reasonable oil well open-up cycle. EproductionSolution’s rod pump controllers accurately regulate the switch-on-well time based on the time period stored on the controller, shutting down immediately while the pump is being pumped, and opening the well when the pump is full, virtually eliminating pump evacuation and aspiration Insufficient phenomenon. After installing the rod pump controller in the well, the rod tube fault was reduced by 31%, the electricity cost was reduced by 40%, and the annual production cost was reduced by 50,000 US dollars. At the same time, it also dramatically reduces liquid strikes, tube wear and pump damage. The reason is that after the rod is broken, the swimming part of the pump will hit the pump barrel to accelerate or immediately damage the pump. Rod pump controller can limit the liquid level impact in 1 to 2 times, greatly extending the rod, pipe and pump life. Adopting the rod pump controller can make the pump operate in the actual pumping, reducing a lot of electricity. At the same time, it can also extend the service life of underground equipment and motors and prolong the oil well repair-free period. Finally, the rod pump controller ensures that the downhole level will fill the pump at each stroke of the pump. The lower fluid level reduces the annulus pressure on the oil jacket, allowing more flow of formation fluid to the wellbore. In this way, the well can maintain a reasonable level and increase the well production.