A static mixer for desalting a fluid is disclosed. A static mixer can include a housing, a reduction cone disposed concentrically within the housing; and an expansion cone disposed concentrically within the housing; wherein the static mixer is configured to direct fluid flow through the reduction cone onto the expansion cone, thereby mixing the fluid.

A polymer dispersion system for use in a hydraulic fracturing operation is disclosed. The system comprises: (a) a first sub-system comprising an ingress and an egress; (b) a second sub-system comprising an ingress and an egress; (c) an eductor mixing device comprising a first inlet in fluid communication with the egress of the first sub-system, a second inlet in fluid communication with the egress of the second subsystem, and an egress; (d) a tank assembly comprising an ingress and an egress, the ingress of the tank assembly being in fluid communication with the egress of the eductor mixing device; and (e) a transfer sub-system comprising an ingress that is coupled to the egress of the tank assembly. The transfer sub-system comprises a first transfer pump and a second transfer pump. In addition, method for operating the polymer dispersion system is disclosed.

A wet frac-sand well site delivery system is a process and method of storing, measuring and regulating the percent solids or PPA (pounds of proppant added) in a sand slurry. The wet sand delivery system is a closed loop, on-site storage system that can receive and store wet frac-sand. The wet sand delivery system takes the wet sand directly from the wash plant and transports it to a wet sand storage pit. From the wet sand storage pit, the sand is pumped directly to a blender or regulator for mixing into a sand slurry for subsequent delivery to a frac pump.

In at least one embodiment, a system for a blender tub overflow catch is disclosed for fracturing operations using a fracturing fluid blender. In at least one embodiment, the system includes a first tub that may be a blender tub and a second tub forming a blender tub overflow catch that is adapted to circumvent an outside diameter of the first tub to catch overflow fluid from the first tub so that it can be directed back into the first tub upon a determination that the first tub has a capacity to handle the overflow fluid.

A system for producing homogenized oil field gel including a power unit, a control system, a feed tank, a hopper, and a piping assembly that includes inlet and outlet manifolds, centrifugal pumps, and metering devices for filling the feed tank and handling a discharge of oilfield gel. The system further includes a powder hydration component and liquid chemical equipment. The method for producing homogenized oil field gel includes a guar powder procedure including a controlled sequence for starting and stopping a venturi mixer in a hydration unit. The method for producing homogenized oil field gel further includes a liquefied gel concentrate procedure including a metering and chemical injection procedure for mixing a liquefied gel concentrate.

The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Embodiments of a mixing device power system generally include a power control module, an AC motor, and a variable frequency drive, wherein upon application of AC power to the system, electrical power is provided to the power control module which transmits electrical power to the AC motor, whereby rotation of a mixing spindle is initiated. After the spindle has begun rotating, transmission of electrical power from the power control module to the AC motor is ceased, and substantially simultaneously electrical power transmission is commenced from the power control module to the variable frequency drive which transmits electrical power to the AC motor, whereby rotation of the mixing spindle is continued. A method of using the mixing device power system to mix a fluid sample is also provided.

Fluid mixing systems and methods to dynamically adjust a density of a fluid mixture are disclosed. A method to dynamically adjust a density of a fluid mixture includes obtaining data indicative of one or more characteristics of a mixture of a first fluid having a first density and a second fluid having a second density that is less than the first density. The method also includes determining, based on the one or more characteristics, an amount of additive to add to the mixture, and releasing a volume of the first fluid, which when mixed with the second fluid, forms a mixture having a ratio of the first fluid to the second fluid. The method further includes mixing the first fluid with the second fluid. The method further includes adding the determined amount of additive to the mixture having the ratio of the first fluid to the second fluid.

Described herein are systems, apparatuses, methods and computer-readable media that monitor and evaluate the density of a slurry of materials provided to a wellbore. Such systems and methods may be used when a volume of solids used in a hydraulic fracturing process is mixed with a volume of fluid when the slurry of materials is formed according to a hydraulic fracturing rule. This slurry may then be provided to the wellbore such that a hydraulic fracturing process may be completed. Here the solids may include a specific type of sand, a proppant material, or other material. Fluids used to make the slurry may include water, chemicals, or other liquids. A density of the slurry may be identified based on measurements that identify a mass of solids and volume of fluid that are provided to form the slurry.

An integrated system includes a desalination plant including a reverse osmosis (RO) array to produce an RO permeate blending stream and a nanofiltration (NF) array to produce an NF permeate blending stream. The integrated system also includes a blending system. Further, the integrated system includes a control unit. Still further, the integrated system includes an injection system for one or more injection wells that penetrate an oil-bearing layer of a reservoir. Moreover, the integrated system includes a production facility to separate fluids produced from one or more production wells that penetrate the oil-bearing layer of the reservoir and to deliver a produced water (PW) stream to the blending system. The blending system is configured to blend the RO permeate and NF permeate blending streams with the PW stream to produce a blended low salinity water stream. The control unit is configured to dynamically alter operation of the blending system to adjust amounts of at least one of the RO permeate blending stream and the NF permeate blending stream to maintain a composition of the blended low salinity water stream within a predetermined operating envelope.