Continuous magnetic positive displacement pump

A downhole pump comprising:

• a tube configured to be positioned within a wellbore and having a downhole end and an uphole end;
• a conductive wire coil helically wrapped around an outer surface of the tube and configured to generate, in response to an electrical current passing through the conductive wire coil, a magnetic field;
• a standing valve assembly positioned within the tube and comprising a first one-way valve, the standing valve assembly comprising a first portion configured to remain stationary within the tube and a second portion configured to axially move towards and away from the first portion;
• a travelling valve assembly positioned in the tube between the standing valve assembly and the uphole end and comprising a second one-way valve, the travelling valve assembly axially movable within the tube and configured to travel towards the uphole end in response to the magnetic field and to repetitively cycle between a first position proximate the standing valve assembly and a second position closer to the uphole end than the first position in response to the electrical current repetitively switching between a first state and a second state, thereby displacing a fluid through the tube from the downhole end to the uphole end.

A method comprising:

• positioning a tube within a wellbore, the wellbore at least partially filled with a fluid, wherein a conductive wire coil is helically wrapped around an outer surface of the tube and the coil is configured to generate, in response to an electrical current passing through the conductive wire coil, a magnetic field;
• positioning in the tube a standing valve assembly comprising a first one-way valve, the standing valve assembly comprising a first portion configured to remain stationary within the tube and a second portion configured to axially move towards and away from the first portion;
• positioning a travelling valve assembly in the tube, the travelling valve assembly comprising a second one-way valve and configured to travel axially relative to the standing valve assembly in response to the magnetic field;
• and
• repetitively switching the electrical current between a first state and a second state, thereby repetitively cycling the travelling valve assembly between a first position uphole of the standing valve assembly and a second position uphole of the first position, thereby displacing a portion of the fluid in an uphole direction from a location within the wellbore or the tube downhole of the standing valve assembly to a location within the tube uphole of the travelling valve assembly.