A mechanical service tool that may include one or more anchors, a cutter, a communication and control system, and one or more sensors, as well as methods for operating the mechanical service tool, are provided. The one or more anchors may extend radially from the mechanical service tool and the cutter may move relative to the mechanical service tool. The cutter may include a drilling bit. The communication and control system may obtain remote commands that control the cutter, the one or more anchors, or both. The one or more sensors may detect operational conditions of the mechanical service tool and may be operatively coupled to the communication and control system.

A system and method for hydraulic isolation of a downhole powered system. The system and method include a sliding sleeve, venting assemblies with venting ports, and check valves associated with a vent body, and an isolation sleeve, isolation valve, and integral packer for controlling fluid flow through the motor and pump assembly of the powered system. Also disclosed is a wet connect mandrel modified to receive the isolation sleeve, the isolation sleeve preferably capable of permitting the passage of tools therethrough and capable of preventing fluid through the inlet of the mandrel. The mandrel may also be outfitted with a built in sliding sleeve. The sleeves, valves and packer can be actuated mechanically, hydraulically or electrically. Electrical actuation can be facilitated using the power from an adjacent wet connect mandrel.

A downhole power supply and method for supplying downhole power are disclosed. In some embodiments a downhole power supply includes a source power supply including a supply cable coupled to an electric energy source. The downhole power supply further includes at least one downhole distribution network to which the supply cable is configured to couple the electric energy source. The at least one downhole distribution network includes, multiple load supplies providing regulated power levels to multiple downhole loads and a network controller configured to individually connect and disconnect each of the load supplies in response to a failure within the downhole distribution network.

A configuration for cooling capacitors comprises a flow tube within a tool body of a pulse power drilling assembly. The flow tube is configured provide a flow path for drilling fluid through one or more sub-assemblies of the pulse power drilling assembly. One or more capacitors are positioned between the flow tube and the tool body. Each of the one or more capacitors comprises a cooling tube embedded within the capacitor to provide a thermally conductive path for removal of heat associated with the one or more capacitors. Cooling capacitors comprises providing a flow of cooling fluid to a cooling tube embedded in a capacitor in the pulse power drilling assembly.

A logging system and method for operating a logging system are typically used in a wellbore. The logging system may include a logging instrument including a rechargeable energy storage and logging electronics, and a cable configured to trickle charge the rechargeable energy storage. The rechargeable energy storage may include an ultracapacitor. The rechargeable energy storage may be trickle charged through the cable from a remote power source.

The application is directed to a power system that may be provided in a portable form and operationally configured for use at a work site as a single source of electric power, hydraulic power and pneumatic power for work site operations. In regard to hydraulic fracturing stimulation of a wellbore, the power system is operationally configured as the source of hydraulic power for transportable pumping units of a fracturing operation and for hydraulic power tools, as the source of pneumatic power for pneumatic power tools and as the source of electric power for electric power tools and electronic equipment at a well site.

A completion assembly having a wireless adjustable electronic flow control node disposed along the sand screen base pipe to control flow of a fluid through a shunt tube assembly adjacent a sand screen. Each electronic flow control node includes a valve that can be adjusted by an electric actuator powered by a power harvesting mechanism disposed in a flow path of the completion assembly. A wireless transmitter receives a control signal to control the electric actuator. The control signal may be transmitted to open or close a packing tube or a transport tube of the shunt tube assembly.

Embodiments of systems and methods for generating power in the vicinity of a drilling rig are disclosed. During a drilling operation, heat generated by drilling fluid flowing from a borehole, exhaust from an engine, and/or fluid from an engine's water (or other fluid) jacket, for example, may be utilized by corresponding heat exchangers to facilitate heat transfer to a working fluid. The heated working fluid may cause an ORC unit to generate electrical power.

An energy storage device is formed in an earthen well and includes an outer tubular member disposed in the well and an inner tubular member disposed in the outer tubular member. Both the inner and outer tubular members may extend the length of the well. The inner tubular member is porous and includes a catholyte fluid disposed therein. The outer tubular member includes an anolyte fluid disposed therein. An anode terminal is located between the inner and outer tubular members and contacts an external surface of the inner tubular member. A cathode terminal is located in the inner tubular member and contacts the inner surface of the inner tubular member.

A wireless downhole information transfer system is presented, which is adapted to operate in wells (well bores), and in particular in wells for the Oil & Natural Gas and Geothermal Industry. The information transfer system comprises an elongated tubing (completion) having several tubing sections comprising a first and a last end tubing section, an information signal generator placed at or near the first tubing section of the elongated tubing. The information signal generator is designed as a torsional wave generator for transmission of a torsional wave information signal along the elongated tubing, and an information signal receiver arranged at or near the last tubing section of the elongated tubing, wherein the elongated tubing between the signal generator and the signal receiver constitutes the carrier for transmission of the information signal between the signal generator and the signal receiver.