Abstract: A technique facilitates removal of heat. The technique involves moving a process fluid through a buffer tank which is combined with a heat exchange system. The heat exchange system includes a conduit carrying a coolant fluid which removes excess heat from a heat source. The conduit is routed to the buffer tank so that the cooler process fluid moving through the buffer tank is able to remove heat from the coolant fluid before it is routed back to the heat source for continued heat removal. In a well application, for example, a heat source, e.g. an electric motor, may be located on a transport vehicle and cooled by the coolant fluid. The heat transferred to the coolant fluid from the heat source is removed by routing the coolant fluid through the conduit associated with the buffer tank. This enables the cooler process fluid in the buffer tank to be used in lowering the temperature of the coolant fluid.

Abstract: A method to generate a tube wave in a tubular system involves reciprocating a plunger in a chamber system to alternatingly increase and decrease net volume, drawing fluid from and returning the fluid to a tubular system and into and from the chamber system, to generate a tube wave, and guiding the tube wave to the tubular system. Also, a tube wave generator-sensor system has a chamber system, a plunger, a driver to reciprocate the plunger within the chamber system to generate a tube wave, a flow passage to guide the tube wave into a tubular system, and a sensor to receive the tube wave signal and/or response from the tubular system. The method and system can work with or without a firing valve and or accumulator, without adding or subtracting fluid from the tubular system.

Abstract: A mixer sensing assembly of a mixer for mixing a wellsite fluid in a tank at a wellsite is provided. The mixer includes a shaft driven by a driver and a paddle operatively connectable to the shaft and rotatable therewith. The sensor assembly includes a mount operatively connectable to the shaft, a fluid interface, and a mixing sensor. The fluid interface is responsive to flow of the wellsite fluid passing thereby, and is connectable to the mount. The mixing sensor is connectable to the mount, the fluid interface, and/or the shaft to measure a strain applied to the thereto whereby fluid parameters of the wellsite fluid may be determined. The wellsite fluid may be mixed moving the components in the tank with the mixer, and measuring a strain on the mixer by detecting movement of the sensor assembly.

Abstract: A mixing system and method for mixing a wellsite fluid including a mixture is provided. The mixing system includes a mixing unit, feed valves, and a calibrator. The mixing unit includes a mixing tank having mixing bins to pass the mixture therethrough, mixers positionable in the mixing tank, and a driver to drive the mixers. The feed valves selectively permit the components to pass into the mixing tank. The calibrator includes a calibrator sensor that connects to the mixers to measure equipment parameters thereof, and a controller connectable to the calibrator sensor and the feed valves to selectively adjust an amount of the components passing into the mixing tank based on the equipment parameters. The method may involve measuring equipment parameters of the mixers during mixing and calibrating by selectively adjusting an amount of the components passing into the mixing tank based on the measured equipment parameters.

Abstract: A predetermined condition in a fluid-filled wellbore system can be detected by generating at least one sound in the wellbore system in response to the condition, such that a detectable change is created in some characteristic of the emitted sound, and detecting the at least one sound and the change, the detection being indicative that the predetermined condition has occurred. Equipment for facilitating detection of the condition can include a trigger operable in response to the condition; a generator operable to emit sound in the borehole and to create a detectable change in some characteristic of the emitted sound in response to the trigger; and at least one sensor operable to monitor the sound and detect the change, the detection being indicative that the predetermined condition has occurred. It is also possible to estimate a value of a property of a fluid-filled wellbore system.

Abstract: A substantially continuous stream of aqueous fluid and a substantially continuous stream of gel having a first concentration are combined to form a substantially continuous stream of gel having a second concentration. The second concentration is substantially lower than the first concentration. The gel having the second concentration may thereafter be utilized in conjunction with a well fracturing operation.

Abstract: A technique facilitates treatment of a subterranean formation. A proppant and a proppant carrier fluid are delivered to a subterranean location for treatment of the formation. At the subterranean location, heterogeneities of proppant structures are generated with the proppant and the proppant carrier fluid. The heterogeneous proppant structures are then transported into the subterranean formation to improve conductivity.

Abstract: A technique facilitates the plastic deformation of tubing to a desired size and shape. The technique enables deformation of tubing, such as a coiled tubing end, in a manner which facilitates installation of a tubing connector. A tubing forming device is used in cooperation with a tubing injector. The tubing injector moves the tubing through a die of the tubing forming device in a linear direction so as to deform the tubing to a desired shape and/or size.

Abstract: A system and techniques for acoustically establishing the onset of an emergent condition relative coiled tubing in a well. The system may include fiber optic line run through the coiled tubing for sake of vibration detection in coiled tubing indicative of buckling, structural defects or other downhole coiled tubing conditions. Thus, application optimization action may be undertaken in a manner that enhances coiled tubing operational efficacy.