This article presented the research on matching technology of casing head and gas-producing wellhead for guaranteeing the safety of drilling and production test operation.

由于套管头和采气井口油管头牵涉到钻井和试油作业中的井口组合，为保证钻井和试油作业时配套使用的安全，要进行配套技术研究。

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Production technology, properties of products and application effects of a new type of cemented carbide with Ni-base binder for drilling tools are introduced briefly.

简要地介绍了以镍基合金为粘结相的新型矿山凿岩硬质合金的制造工艺、制品性能以及使用效果考核情况。

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The three-dimensional simulated theory and techniques in oil drilling implementation techniques of production process, which is based on the technology of virtual reality by this paper.

本文探讨了基于虚拟现实技术实现钻井生产过程三维模拟仿真的理论与技术方法。

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