Abstract: An annular piston pile driver for use with a fluid jet drill system for boring holes in both residential and non-residential areas for geothermal energy shafts. The annular piston pile driver having an inner cylinder, an outer cylinder, a piston, a driver coupling, an upper sealing component, and a lower sealing component. The outer cylinder circumscribing the inner cylinder such that the inner cylinder and the outer cylinder form an annular space therebetween. The piston comprising a piston shaft and a piston head, wherein the piston is disposed within the annular space and configured to travel along an axis.

Abstract: A high pressure fluid drill head system for boring holes in both residential and non-residential areas for geothermal energy shafts. The high pressure drill head system having a body sized for the intended borehole to be drilled and including a plurality of parts coupled together via one or more fastening methods. The plurality of parts including an outflow channel within the body, at least one high pressure flow channel disposed within the body, the high pressure flow channel disposed parallel to the outflow channel, a nozzle in fluid communication with the high pressure flow channel, the nozzle having at least one orifice configured for ejecting a fluid, a return feed inlet disposed at the lower end of the body, the return feed inlet in fluid communication with the outflow channel.

Abstract: An annular piston pile driver for use with a fluid jet drill system for boring holes in both residential and non-residential areas for geothermal energy shafts. The annular piston pile driver having an inner cylinder an outer cylinder, a piston, a driver coupling, an upper sealing component, and a lower sealing component. The outer cylinder circumscribing the inner cylinder such that the inner cylinder and the outer cylinder form an annular space therebetween. The piston comprising a piston shaft and a piston head, wherein the piston is disposed within the annular space and configured to travel along an axis.

Abstract: A high pressure fluid drill head system for boring holes in both residential and non-residential areas for geothermal energy shafts. The high pressure drill head system having a body sized for the intended borehole to be drilled and including a plurality of parts coupled together via one or more fastening methods. The plurality of parts including an outflow channel within the body, a piston, at least one high pressure flow channel disposed within the body, the high pressure flow channel disposed parallel to the outflow channel, a nozzle in fluid communication with the high pressure flow channel, the nozzle having at least one orifice configured for ejecting a fluid, and a return feed inlet disposed at the lower end of the body, the return feed inlet in fluid communication with the outflow channel.