A method includes mixing a first deionized water (DI) water from a first pipe and a second DI water from a second pipe in a merging pipe that is in fluid communication with the first pipe and the second pipe. An electrical resistivity of the first DI water is different from an electrical resistivity of the second DI water. A mixture of the first DI water and the second DI water is applied from the merging pipe onto a wafer.

A system and method of wellbore operations that uses an eductor unit for introducing additives into a moving fluid stream to form a mixture. The mixture is used as a completion drilling fluid for drilling through plugs installed in a wellbore. Example additives include polymers, such as friction reducers, viscosifiers, potassium chloride, polysaccharide, polyacrylamide, biocides, lubricants, long chain polymer molecules, and the like. The fluid is primarily fresh water and/or brine water, and acts as a motive fluid in the eductor unit for drawing the additive into the eductor unit. Forming the mixture in the eductor unit which is injected into the wellbore.

A system and method of wellbore operations that uses an eductor unit for introducing additives into a moving fluid stream to form a mixture. The mixture is used as a completion drilling fluid for drilling through plugs installed in a wellbore. Example additives include polymers, such as friction reducers, viscosifiers, potassium chloride, polysaccharide, polyacrylamide, biocides, lubricants, long chain polymer molecules, and the like. The fluid is primarily fresh water and/or brine water, and acts as a motive fluid in the eductor unit for drawing the additive into the eductor unit. Forming the mixture in the eductor unit which is injected into the wellbore.

A continuous ready mix joint or texture compound manufacturing system and a method for continuously manufacturing a ready mix joint or texture compound includes a continuous mixer having an inlet and an outlet, a pump disposed at the outlet of the continuous mixer, and a disperger having an inlet and an outlet. The continuous mixer is adapted to receive at least one dry ingredient and at least one wet ingredient at the inlet and continuously mix the at least one dry ingredient and the at least one wet ingredient to form a mixed composition. The pump is adapted to pump the mixed composition from the outlet of the continuous mixer to the inlet of the disperger. The disperger is adapted to receive the mixed composition and apply a shear force to the mixed composition to form a homogenized, disperged composition.

Methods and systems for controlling proppant concentration in a hydraulic fracturing slurry include measuring volumetric flow rates of fracturing fluid input to a blender and hydraulic fracturing slurry output from the blender, using these measured values to calculate a volumetric flow rate of proppant input, a slurry density and/or a slurry volume fraction, adjusting first and second valves to control rates of fluid and proppant delivery to the blender and re-measuring the volumetric flow rates and recalculating until target values of volumetric flow rate of proppant input, slurry density and/or slurry volume fraction are achieved.

A cleaning chemical liquid supply device includes: first and second mixers respectively mixing first chemical liquid with dilution water and respectively supplying to first and second nozzles respectively supplying the first chemical liquid adjusted to desired flow rates and concentrations to a first position and a second, different position of the substrate in the cleaning device; a first dilution water control box controlling flow rates of the dilution water supplied to the first and second mixers; third and fourth mixers respectively mixing second, different chemical liquid with the dilution water and respectively supplying to third and fourth nozzles for respectively supplying the second chemical liquid adjusted to desired flow rates and concentrations to a third position and a fourth, different position of the substrate in the cleaning device; and a second dilution water control box controlling flow rates of the dilution water supplied to the third and fourth mixers.

A fluid mixer device that automates the mixing of multiple fluids into a base liquid and the delivery of the mixed liquid according to user-specified parameters with automatic flush-out, full logging and reporting capabilities. The device is comprised of a plurality of modules, each of which is designed for a different environmental setting: (a) the control module, the module with which the user interfaces, is normally located in a dry area, away from both line voltage electricity and fluids; (b) the power module, which supplies power to all modules, is located near 110 V-230 V single phase line voltage, and thus contains all of the high-voltage gear and interfaces; and (c) the flow module, the bank of controlled liquid mixers, is located in the wet area and uses only low-voltage direct current in its operation.

Process and apparatus for producing helium, neon, or argon product gas using an adsorption separation unit having minimal dead end volumes. A second separation unit receives a stream enriched in helium, neon, or argon, and a stream is recycled from the second separation unit back to the adsorption separation unit in a controlled manner to maintain the concentration of the helium, neon, or argon in the feed to the separation unit within a targeted range.

A dispenser includes a dock configured to be fixed in place at a use device and a solid product holder configured to be removably secured to the dock. The dock has a first portion including a fixation element that is configured to fix the dock in place at the use device and a second portion including a receiving structure. The solid product holder includes a retaining structure, a base, and a support structure. The retaining structure is configured to removably secure the solid product holder to the receiving structure at the second portion of the dock. The base defines a plurality of apertures that form an open area at which the liquid is received at the solid product holder. The support structure extends from the base and defines an internal volume for holding the solid product at the solid product holder.

A system for making a brine solution is provided comprising: a single conveyor; and a hopper assembly configured to receive a salt and a solvent, the hopper assembly comprising a lower hopper having a shape in which sides of the lower hopper direct any solid contents of the lower hopper, under a force of gravity, towards an entry point of the single conveyor, the hopper assembly further comprising a solvent inlet arranged to spray the salt, wherein the solvent inlet is configured to create a brine solution from a spray of the solvent combined with the salt in the hopper assembly, and wherein the single conveyor is configured to remove debris from the hopper assembly at the entry point of the single conveyor. A novel sediment tank is also provided.