Coiled tubing spiral venturi tool

A device for use with concentric coiled tubing, the concentric coiled tubing comprising inner and outer tubes with an annular conduit formed therebetween, the device being configured to remove solids from inside an external conduit using a pressurized power fluid, the concentric coiled tubing being connected to coiled tubing equipment positioned outside of the external conduit, the device comprising:

• a sealing connection assembly configured to be mechanically and hydraulically coupled to the concentric coiled tubing;
• a hydraulic control subsystem comprising at least one power fluid connection element and at least one control valve assembly, the at least one power fluid connection element being configured to receive the pressurized power fluid from the inner tube of the concentric coiled tubing and provide the pressurized power fluid to the at least one control valve assembly when a pressure level of the pressurized power fluid overcomes a flow resistance, the at least one control valve assembly comprising at least one pressure biased multi-position valve each comprising a moveable element;
• a suction head subsystem comprising at least one jet pump assembly, the at least one jet pump assembly comprising a plurality of venturi located around a central opening, the plurality of venturi communicating with at least one cavity positioned outside the device, and an outlet of each of the plurality of venturi communicating with the annular conduit formed between the inner and outer tubes of the concentric coiled tubing;
• and
• a jetting nozzle subsystem comprising at least one vortex generating wash nozzle assembly,
• wherein when the pressure level of the pressurized power fluid overcomes the flow resistance of the at least one power fluid connection element, the pressurized power fluid contacts the moveable element of each of the at least one pressure biased multi-position valve and sets the moveable element's position based on the pressure level of the pressurized power fluid, the at least one control valve assembly directing the pressurized power fluid to flow to the jetting nozzle subsystem when the moveable element is in a first position, the at least one control valve assembly directing the pressurized power fluid to flow to the suction head subsystem when the moveable element is in a second position, the at least one control valve assembly directing the pressurized power fluid to flow to both the jetting nozzle subsystem and the suction head subsystem simultaneously when the moveable element is in a third position, a pulsating jet spray of the pressurized power fluid exiting from the device to remove the solids from inside the external conduit when the at least one control valve assembly directs the pressurized power fluid to flow to the jetting nozzle subsystem, fluids in the external conduit being suctioned therefrom and pumped through the annular conduit formed between the inner and outer tubes of the concentric coiled tubing when the at least one control valve assembly directs the pressurized power fluid to flow to the suction head subsystem.