Wennan colliery of Xinwen coal mining Group is an old coalmine and is mining deep coal layer.
汶南煤矿是新汶矿业集团进入深部开采的老矿井。
The frequent corrosion failures of pipelines in Zhongyuan Wennan oil and Gas field have affected the normal operation of the oil field.
中原文南油气田管线因腐蚀严重造成频繁穿孔，严重影响了油田的正常生产。
This text took the Wennan oil field as the example, according to the actual situation, expounded complete airtight sewage disposal technology.
本文以文南油田为例，从实际出发，系统阐述了全密闭污水处理工艺。
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