Evaluation and well selection of over-deep well heavy oil production technology in Tahe oilfield

Tahe oil field is an ultra deep well heavy oil reservoir with high viscosity, high freezing point and large gravity and is difficult for exploitation. This article had made detailed evaluation and analysis on currently adopted flowing production technology as electric heating hanger rod, mixing watery and viscosity reduction, sucker rod heavy oil pump, screw pump and electric submersible pump, pointed out their advantages and disadvantages and proposed flowing production driving technology system in replacement of sucker rod pump and electric submersible pump.