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- Keywords the coal gas mining;super short radial horizontal well;turning system;penetrance; 煤层气开采;超短半径水平井;转向系统;渗透率;
- the coal gas mining 煤层气开采
- The coal gas has been odorized before supplying the users. 煤气在输送给用户之前添加了臭味。
- The results have some referent value and guiding significance to oil, gas and coal gas mining. 该成果对石油、天然气、煤层气开采具有一定的参考价值和指导意义。
- The gas grade appraising in the coal mine is a main approach to estimate whether a coal mine is a low or high gas mine,or coal &gas outburst one,and to prevent gas explosion and mine firing. 矿井瓦斯等级鉴定是确定煤矿属于低瓦斯矿井、高瓦斯矿井还是煤与瓦斯突出矿井以及预防煤矿瓦斯爆炸危险和矿井自然发火危险等的一个重要手段。
- Coal gas used is a proportion of that evolved from the coal during its carbonisation and after purification. 所用煤气是在焦化过程中由煤中释放出来并经净化而得的煤气的一部分。
- Submerged nozzle must be preheated before casting.Now,burning the coal gas is the usual preheating method. 浸入式水口在浇钢以前必须进行充分预热,利用燃烧的煤气烘烤水口是常用的预热烘烤方式。
- The papes reports on-line emengency repair methods and other on-line pipeline maintenances to maintain the coal gas network in normal operation. 介绍了为维持煤制气管网正常运转,采取的带气抢修方案和包扎堵漏法等带气管线维修方法。
- This paper introduces the Specific optimization measures and its effect of 3# Coke Oven Remelt the Coal Gas Control in NANGANG. 介绍对南钢3%23焦炉回炉煤气控制方案的具体优化措施及其达到的效果。
- Dilution process of the coal gas in the laneway with pressured-injection ventilation and extracted methods had been analyzed comparatively. 结果发现:压入式通风方式在掘进面附近引起较大的漩涡流动,不利于瓦斯气体的稀释,而抽吸式通风方式则无明显涡流存在。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- In view of the problem in coal gas measure of orifice flowmeter,some ideas in vortex flowmeter in the application of the coal gas measurement are discussed. 针对孔板流量计在气源厂出厂燃气的计量方面存在的问题,探讨采用卡门旋涡流量计计量焦炉煤气流量的合理性。
- This article has introduced a kind of technology about coal gas is exploited.The penetrance of the coal gas will be improved greatly and the output of the... 论文介绍了一种煤层气开采技术,利用该项技术可以大大提高煤层气的渗透性,增加煤层气的产量。
- They underwrote the coal mine's bonds. 他们同意买下该煤矿的未认购的股票。
- The coal gas flow measuring method applies the BP NN technology into measuring the goal gas flow, thus solving the nondeterminacy problem of flow complementing. 本发明将神经网络技术应用于煤气流量计量中,解决了流量补偿不确定性问题。
- The coal will be shipped by rail. 这些煤将用火车装运。
- It resolved the problem that the coal gas imput was enough but weak of processing rate and quality by builting a same dimension naphthalene scrubber and standby each other. 通过新建一同等规模的洗萘塔,新老塔互为备用,解决了洗萘塔煤气处理量小、质量低的问题。
- In this article,the technics of the coal gas be callbacked from converter is introduced,the arameters and specialities of them about system are analysed. 简要介绍了转炉煤气回收的工艺过程,分析了相关参数及其特性;
- Vaporization experiment proves that the coal gas quality is meet the needs of production .Coal consumption dose not increase and the composite cost reduces by 40% . 经气化试验和采取适当措施后,煤气质量符合要求,煤耗也没有增加,综合成本降低40%25。
- They sold the coal mine at a profit. 他们把煤矿卖掉赚了钱。