全文中描述的套管气压操纵杆举升（CGPORL）系统由抽油杆、泵、气举阀、井下气锚和油管柱组成。该完井技术的发明目的是为了节省修井机成本、减少生产延期并提高边际油田高气油比 (GOR) 环境中的生产效率。
混合举升系统包括气举和杆举升模式，允许操作员在两种人工举升模式之间切换，而无需进行昂贵的修井（上图1）。关键因素是能够在油管和环空之间隔离或连通，而无需将油管柱拉出井眼。气举要求环空应隔离管道，以便通过安装在袋式心轴内的阀门注入气体，而杆泵需要管道和环空之间的连通，以便释放的游离气体通过。
一旦环空压力超过阀门关闭压力，气举阀就会打开。
The casing gas-pressure-operated rod-lift (CGPORL) system described in the complete paper consists of a sucker rod, pump, gas-lift valves, downhole gas anchor, and tubing string. The completion was invented to save workover rig cost, reduce production deferments, and increase production efficiency in high-gas/oil-ratio (GOR) environments in marginal fields.
The hybrid-lift system includes gas-lift and rod‑lift modes, allowing operators to switch between two modes of artificial lift without costly workovers (Fig. 1 above). The key factor is the ability to isolate or communicate between the tubing and the annulus without pulling the tubing string out of the hole. Gas lift requires that the annulus should isolate tubing in order to inject gas through valves installed inside pocket mandrels, whereas rod pumps need communication between the tubing and annulus for passage of liberated free gas.
The gas-lift valve opens once annulus pressure develops over the valve-closing pressure.
