Dowell Schlumberger Incorporated

William R McIntire

James C Ritter

Plug flow through a series of tanks in fluid communication is effected by the addition of radial flow impeller means to at least one of the tanks. Plug flow through the tanks allows for sufficient residence time in the series of tanks to effect complete hydration of a hydratable gel for using in well treatment operations such as fracturing, acidizing and gravel packing.

Apparatus and method for mixing fluids

This invention is directed to a mixing apparatus for mixing liquids and particulate solids which comprises an enclosed cylindrical housing with an inlet means and a liquid/solid outlet means coupled to said housing and a slinger disposed within said housing which comprises a flat disc with a plurality of circumferentially spaced vertical vanes and a cylindrical outer wall at the outer periphery of the cylindrical flat disc.

Mixing apparatus

The machine disclosed herein is useful for blending a particle containing stream, especially a stream of solid particles, with fluids. In a typical operation, sand is mixed with a gel composition to obtain a fluid mixture suitable for stimulation treatments of oil and gas wells. The machine includes a slinger with a topside surface which may be of toroidal concave configuration. The machine also includes an impeller, of a vortex configuration, that is fastened underneath the slinger. In this machine, entrained gas is carried into the fluid phase by the particle containing stream, but the gas is then 'exhausted' from the mixture through interior and exterior air exhaust channels and spaces that are built into the machine. A slinger which is particularly adapted for use in such a machine is also disclosed.

Machine for mixing particles with a fluid composition

The machine disclosed herein is useful for blending solids with fluids. In a typical operation, sand is mixed with a gel composition to obtain a fluid mixture suitable for stimulation treatments of oil and gas wells. The machine includes a slinger member, of a toroidal shape, and an impeller, of a vortex configuration, that is fastened underneath the slinger. In this machine entrained air is carried into the fluid phase by the sand, but the air is then 'exhausted' from the sand-gel mixture through interior and exterior air exhaust channels and spaces that are built into the machine.

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Tulsa, OK, United States of America

William R McIntire