The power distribution of heavy oil well along well-bore in medium-frequency heating is investigated by means of distributing parameter circuit model.
用分布参数电路模型对稠油油井中频加热功率沿井深的分布进行了深入研究。
The invention relates to a medium-frequency heating system, in particular to a medium-frequency heating system applied to the exploitation of thick oil.
本发明涉及一种中频加热系统，尤其涉及一种应用于稠油开采的中频加热 系统。
The Paper introduces the application of PLC in Medium-frequency heating bender for large caliber pipe, and design scheme of the main control sub-routine is given.
本文介绍了PLC在大口径中频加热弯管机控制系统中的应用，并给出了控制系统关键子程序的设计方案。
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