1·The paper introduces a data transmission method for wireless testing of oilwell underpit parameters (pressure and temperature) and low power consuming control circuits of underpit emission devices.
介绍一种油井井下参数（ 压力、 温度）无线测试的数据信息传输方法及井下发射装置低功耗控制电路。
2·This paper introduces the construction of hardware and the design of software of a tester for the oilwell system based on AT89C51.
本文介绍了基于AT 89 C 51单片机的油井测试系统的原理及系统的硬件组成和软件设计方案。
3·From a spare part to a comprehensive drilling system and from a generic valve to a fully integrated supply chain process, National Oilwell Varco delivers unlimited customer solutions.
从一个备件到一套完整钻井系统，从一个普通的阀门到一套集成的供应链程序，国民油井华高提供各种无限制的用户解决方案。