| 摘要 |
A method can include providing a motor that includes a housing, axially aligned stationary electromagnets disposed in the housing, an aperture defined by the axially aligned stationary electromagnets, movable axially aligned permanent magnets disposed in the aperture and a connector shaft connected at an end of the movable axially aligned permanent magnets; disposing the motor and a rod pump in a well; controlling operation of the motor to linearly reciprocate the axially aligned movable permanent magnets and the connector shaft; pumping fluid from the well via the rod pump responsive to the linear reciprocation of the axially aligned movable permanent magnets and the connector shaft; and substantially blocking the pumped fluid from flowing through the aperture defined by the axially aligned stationary electromagnets of the motor. Various other apparatuses, systems, methods, etc., are also disclosed. |
