Abstract: A microwave energy tool including a sheet beam klystron that includes a tube body for carrying an electron sheet beam that has a plurality of cavities and a magnetic solenoid wound directly on the tube body.

Abstract: The extraction of hydrocarbons from two or more wells is enhanced by creating microwave induced permeability zones between the wells, with the zones intersecting or overlapping, so that a fluid pathway is open between the wells and superheated or supercritical fluids and/or selected catalytic compounds flow through the wells and pathways to extract the hydrocarbons and the extracted hydrocarbon flows to a pump for removal from one or more of the wells. For conventional well system, the microwave can rehabilitate stripper wells and increase formational pressure in existing well fields. Porous cavities created by the microwave are suitable for carbon sequestration.