OIL EXTRACTION SYSTEM AND OIL EXTRACTION SUPERVISORY SYSTEM

摘要

An oil extraction system is provided. The oil extraction system includes a sucker rod pump (10) provided for a production well (2) so as to pump up crude oil; a signal detecting section (12) for detecting a pump-off signal sent from the sucker rod pump (10); and an injection pump (20) provided for an injection well (3) so as to pressure-inject fluid which is used for secondary extraction or tertiary extraction. The pressure injection pump (20) is operated based on the pump-off signal detected by the signal detecting section (12).