The utility model relates to an electric heating device for an oil well which is constituted on an oil tube in the oil well and used for enhancing oilfield recovery efficiency.
一种在油井里油管上构成用以提高油田采收率的采油井电加热装置。
The utility model relates to an electric heating device for an oil well which is constituted on an oil tube in the oil well and used for enhancing oilfield recovery efficiency.
一种在油井里油管上构成用以提高油田采收率的采油井电加热装置。
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