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液压驱动的钻井泵采用变量液压泵和动力油缸组成液压钻井泵的动力端；液力端和现在使用的三缸单作用活塞式钻井泵相同。该种泵的冲程长、冲次低、排量可调、排出压力波动很小、运转平稳、质量轻、液力端易损件寿命可大幅度提高。并且可以取消空气包、安全阀及灌注泵。经试验，所研制的液压钻井泵能正常运行，国产液压件能满足工作的要求。随着钻井技术的迅速发展，特别是深井、超深井及水平井技术的发展，对钻井泵的要求越来越高。要求钻井泵功率大、质量轻、排量大、泵压高而且可调、适应能力强、易损件寿命长。现用的曲柄连杆式三缸单作用活塞式钻井泵已经很难满足钻井工艺的要求。研究、设计、制造新型结构的钻井泵已是大势所趋，而液压驱动的钻井泵是当前国内外研究的重点。
The hydraulic driven drilling pump uses the variable hydraulic pump and the power cylinder to form the power end of the hydraulic drilling pump; the hydraulic end is the same as the three-cylinder single-acting piston drilling pump now used. The pump stroke long, low-flush, adjustable displacement, discharge pressure fluctuations small, smooth operation, light weight, fluid-end consumables life can be greatly improved. And can cancel the air bag, safety valve and perfusion pump. After testing, the developed hydraulic drilling pump can be normal operation, domestic hydraulic parts to meet the requirements of the work. With the rapid development of drilling technology, especially the development of deep well, ultra-deep well and horizontal well, the requirements for drilling pumps are getting higher and higher. Requires drilling pump power, light weight, large displacement, high pump pressure and adjustable, strong adaptability, long wearing parts. The existing crank-rod three-cylinder single-acting piston drilling pump has been difficult to meet the drilling requirements. Research, design, and manufacture of new structure of the drilling pump is the trend of the times, and hydraulically driven drilling pump is currently the focus of research at home and abroad.