但有人对此提出了不同意见，认为该地区的机械采油应首选水力活塞泵。
However, someone thinks that the optimum oil recovery mode of Lunnan oilfield should be hydraulic piston pump.
开发初期，主导开采方式主要以“水力活塞泵、闭式热水循环”等采油工艺为主。
At the initial stage of development, the main oil production methods give priority to hydraulic piston pump and closed hot water circulation.
介绍了新型液力抽油装置的组成及液压驱动系统的工作原理，该装置综合了液压有杆抽油装置和水力活塞泵抽油装置两方面的优点。
The structure compositions of a new type of hydraulic driving pumping oil installation and the working principle of its hydraulic driving system are introduced.
测试仪器安装在水力活塞泵泵芯尾部取样器内，随泵芯投入井下进行测试，可实时检测地层液的含水率情况，利用数据存储器实时保存历史曲线，提供了全天候观测生产过程的手段。
Testing instrument was installed in sampler at heel of hydraulic pump, put into down-hole with pump, and it can examine water cut of formation fluid, save history curves in real time by data memory.
测试仪器安装在水力活塞泵泵芯尾部取样器内，随泵芯投入井下进行测试，可实时检测地层液的含水率情况，利用数据存储器实时保存历史曲线，提供了全天候观测生产过程的手段。
Testing instrument was installed in sampler at heel of hydraulic pump, put into down-hole with pump, and it can examine water cut of formation fluid, save history curves in real time by data memory.
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