首先根据液压活塞式混凝土泵的工作原理，阐述了混凝土泵排量的基本数学模型，指出模型中的实时泵送效率是解决问题的关键。

The basic mathematic model of the output of hydraulic piston concrete pump was described in terms of its working principle, the influence on real-time pumping efficiency was analyzed.

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大排量泵抽式地层测试器以获取流体样品和地层静压为主。

High pumping rate formation tester is mainly used to get fluid sample and reservoir static pressure.

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根据建立的函数关系式，可直接计算泵的容积效率和所需的泵的体积排量，或迭代求出地面产液量。

Based on the established functional relation, the V_e and the required P_d can be calculated directly, or the total liquid production rate at surface can be calculated indirectly.

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