Abstract: A dual chamber assembly for continuously injecting slurry into a wellhead by displacing it from chambers with pressurized clean fluid.

Abstract: A dual chamber assembly for continuously injecting slurry into a wellhead by displacing it from chambers with pressurized clean fluid.

Abstract: A method and apparatus for blending liquids and granular materials in which an impeller assembly is mounted for rotation within a housing at a lower end of a particles inlet and circumferentially spaced impeller vanes in outer concentric relation to a series of expeller vanes surrounding the particles inlet and which together propel the solid particles outwardly to intermix with the liquid introduced into the annulus surrounding the impeller assembly, the annulus being tapered or reduced in area in a direction counter to the direction of slurry flow in order to boost the pressure of the slurry discharged through an outlet port.

Abstract: A method and apparatus for blending liquids and granular materials in which an impeller assembly is mounted for rotation within a housing at a lower end of a particles inlet and circumferentially spaced impeller vanes in outer concentric relation to a series of expeller vanes surrounding the particles inlet and which together propel the solid particles outwardly to intermix with the liquid introduced into the annulus surrounding the impeller assembly, the annulus being tapered or reduced in area in a direction counter to the direction of slurry flow in order to boost the pressure of the slurry discharged through an outlet port.

Abstract: A method and apparatus for blending liquids and granular materials in which an impeller assembly is mounted for rotation within a housing at a lower end of a particles inlet and characterized in particular by circumferentially spaced impeller vanes in outer concentric relation to a series of expeller vanes surrounding the particles inlet and which together propel the solid particles outwardly to intermix with the liquid introduced into the annulus surrounding the impeller assembly, and different selected vane configurations are provided with circumferential portions protruding into the path of counterflow of the slurry from the annulus in order to keep the eye or central area of the impeller assembly dry.

Abstract: An impeller vane assembly for blending liquids with solid particulate matter in which a center drive shaft extends through a housing having a solid particle inlet and a liquid inlet together with an outlet, and upper and lower impeller vanes are aligned respectively with the particle inlet and liquid inlet to cause intermixing of the solids and liquids by counterflow of the liquid into the upper impeller region, the upper and lower vanes being separated by a common divider plate, the upper vanes being radially split and lower vanes having outer split tips, the vanes being operative to balance the point at which the solids and liquid are intermixed between the solid particle inlet and annular space surrounding the impeller. In one embodiment, inner concentric expeller blades are employed with the upper impeller vanes to accelerate the flow of solid particles.

Abstract: An impeller vane assembly for blending liquids with solid particulate matter in which a center drive shaft extends through a housing having a solid particle inlet and a liquid inlet together with an outlet, and upper and lower impeller vanes are aligned respectively with the particle inlet and liquid inlet to cause intermixing of the solids and liquids by counterflow of the liquid into the upper impeller region, the upper and lower vanes being separated by a common divider plate, and the vanes are characterized by being curved in the direction of rotation of the impeller and having outer radially extending tips which terminate at the outer peripheral edge of the common divider plate, the vanes being operative to balance the point at which the solids and liquid are intermixed between the solid particle inlet and annular space surrounding the impeller.

Abstract: A method and apparatus for blending liquids with solid particulate matter in which a center drive shaft extends through a housing having a solid particle inlet and a liquid inlet together with an outlet, and upper and lower impeller vanes are aligned respectively with the particle inlet and liquid inlet to cause intermixing of the solids and liquids by counterflow of the liquid into the upper impeller region. In one embodiment, expeller blades are employed in inner concentric relation to the upper impeller vanes to accelerate the flow of solid particles into the upper impeller region, and baffle plates or deflector members are employed above and below the upper and lower impellers to prevent any leakage of liquid into the center of the impeller. In preferred and alternate forms, the impeller vanes are sized to balance the point at which the solids and liquid are intermixed.

Abstract: A method and apparatus for blending liquids with solid particulate matter in which a center drive shaft extends through a housing having a solid particle inlet and a liquid inlet together with an outlet, and upper and lower impeller vanes are aligned respectively with the particle inlet and liquid inlet to cause intermixing of the solids and liquids by counterflow of the liquid into the upper impeller region. In one embodiment, expeller blades are employed in inner concentric relation to the upper impeller vanes to accelerate the flow of solid particles into the upper impeller region, and baffle plates or deflector members are employed above and below the upper and lower impellers to prevent any leakage of liquid into the center of the impeller. In preferred and alternate forms, the impeller vanes are sized to balance the point at which the solids and liquid are intermixed.

Abstract: An impeller vane assembly for blending liquids with solid particulate matter in which a center drive shaft extends through a housing having a solid particle inlet and a liquid inlet together with an outlet, and upper and lower impeller vanes are aligned respectively with the particle inlet and liquid inlet to cause intermixing of the solids and liquids by counterflow of the liquid into the upper impeller region, the upper and lower vanes being separated by a common divider plate, and the vanes are characterized by being curved in the direction of rotation of the impeller and having outer radially extending tips which terminate at the outer peripheral edge of the common divider plate, the vanes being operative to balance the point at which the solids and liquid are intermixed between the solid particle inlet and annular space surrounding the impeller.

Abstract: A blender apparatus specifically adaptable for intermixing solid and liquid materials is made up of a housing for an impeller assembly having upper and lower impeller portions and wherein liquid directed into the lower impeller portion is redirected axially into the upper impeller portion for intermixing with solid materials directed into the upper impeller portion and undergo outward radial movement through the upper impeller portion into an outer peripheral area surrounding the impeller portions for subsequent discharge therefrom.

Abstract: A truck-mounted apparatus is capable of blending liquid/liquid or liquid/solid constituents in a high capacity blending operation, and the apparatus achieves a high degree of versatility in the introduction of materials into a blender apparatus (10) for discharge from either or both sides of the truck or other vehicle. A closed loop system (12) permits suction of liquid materials as well as discharge of mixed materials from one or both sides of the truck, and is capable of flushing or other pumping operations as well. Moreover, the closed loop system (12) includes a pump (62) as a part of the closed loop system which, together with the blender (10), is operable off of a common drive, such as the power transmission train of the truck.

Abstract: A truck-mounted apparatus is capable of blending liquid/liquid or liquid/solid constituents in a high capacity blending operation, and the apparatus achieves a high degree of versatility in the introduction of materials into a blender apparatus (10) for discharge from either or both sides of the truck or other vehicle. A closed loop system (12) permits suction of liquid maaterials as well as discharge of mixed materials from one or both sides of the truck, and is capable of flushing or other pumping operations as well. Moreover, the closed loop system (12) includes a pump (62) as a part of the closed loop system which, together with the blender (10), is operable off of a common drive, such as the power transmission train of the truck.

Abstract: A blending apparatus comprises a generally cylindrical casing bounded by top and bottom walls, the top wall having a central solids inlet for introduction of solids by gravity flow into an impeller mounted for rotation in the casing and in coaxial alignment with the solids inlet. The impeller has one or more spaced plates and impeller vanes mounted thereon which extend radially away from a central opening in the upper plate thereof, the central opening being aligned in open communication with the solids inlet and disposed in closely spaced relation to the top wall in such a way to prevent backflow of materials from the chamber formed in the casing through the upper solids inlet. Tangentially directed fluid inlet and outlet ports are disposed in the casing's cylindrical wall and the inlet port is disposed in outer radially spaced relation to the impeller preferably with the outlet port spaced below the inlet port and impeller for discharging intermixed materials from the chamber.

Abstract: A high capacity blender has been devised which is adaptable for use in achieving the proper blend of liquid-to-liquid or liquid-to-solid constituents making up a gel composition for use in fracturing oil and gas well formations in which a high speed impeller is mounted for rotation concentrically within an outer casing and has a solids inlet which is isolated from the liquid inlet. A series of liquid inlet apertures are disposed in outer concentric surrounding relation to the impeller, and impeller vanes within the impellers are operative to impart a centrifugal force to solids introduced therein whereby to direct the solids and materials radially and outwardly under considerable force into the liquid stream which is directed axially along the inner wall of a mixing chamber.