S.p.c.m. Sa

S N F

Rene Pich

Philippe Jeronimo

Ludwig Gil

Peter Nichols

Adrian Parker

Scott H Ramey

Compact and transportable preparation center which can be used for fracturing operations on gas or oil fields, capable of metering out and dissolving two different polymers in the powder form, and including: two pneumatic mechanisms respectively supplying two storage hoppers for two separate polymers; two mechanisms for supplying and metering the polymer originating respectively from the two storage hoppers to a device for dispersing by grinding, also denoted PSU; two series of tanks for hydration and dissolution of the polymers connected to the dispersing and grinding device; two positive displacement vacuum pumps for metering the two solutions each originating from the two series of hydration and dissolution tanks and intended to supply a mixer itself connected to a high-pressure injection pump. Fracturing process employing the preparation center.

Centre for the preparation of additives for hydraulic fracturing operations and hydraulic fracturing process employing the preparation centre

A process for the enhanced recovery of oil in a deposit introduces into the deposit an alkaline aqueous solution of a water-soluble polymer containing a surfactant. The aqueous solution of water-soluble polymer introduced is prepared with an aqueous solution initially containing Caand Mgions treated with an alkaline agent and a dispersant, so as, prior to the introduction of the polymer and the surfactant into the aqueous solution, to precipitate, under the action of the alkaline agent and of COoptionally dissolved in the aqueous solution, the Caand Mgions. The precipitates are especially in the form of precipitates of calcium carbonate and of magnesium hydroxide and are dispersed owing to the dispersant, which is chosen in order to limit the size of the calcium carbonate and magnesium hydroxide precipitates.

Process for enhanced oil recovery using the ASP technique

Enhanced oil recovery method consisting in continuously dissolving, in the injection water, a stable invert emulsion of acrylamide (co)polymer containing at least one inverting agent, and a water soluble polymer, whereby:

Method of continuous dissolution of polyacrylamide emulsions for enhanced oil recovery (EOR)

A method for dispersing a water-soluble polymer includes: metering and prewetting polymer with primary water; grinding and draining of the dispersed polymer in a chamber comprising a rotor and a stator; and providing a ring with perforations fed by a secondary water circuit on all or part of the periphery of the chamber for spraying of pressurized water on the blades of the stator.

Method for preparing a dispersion of water-soluble polymers in water

Device for dispersing a water-soluble polymer comprising: a chamber for grinding and draining of the dispersed polymer comprising a rotor and a stator, and on all or part of the periphery of the chamber, a ring fed by a secondary water circuit. The ring communicates with the chamber for spraying of pressurized water on the blades of the stator. A method implementing the device is also provided.

Device for preparing a dispersion of water-soluble polymers in water, and method implementing the device

Installation for flocculation of water or sludge loaded with suspended matter comprising in succession: a polymer storage hopper, a polymer grinding device, and a line, pipe or other conveyor for transferring the polymer solution to the water or the sludge to be treated. The grinder device includes a wetting cone in which the polymer is poured, and at the bottom end of the cone: a chamber for grinding and removing the dispersed polymer comprising: a rotor, a stator, and a ring fed by a secondary water circuit. A method implementing the installation is also provided.

Installation for the flocculation of sludge loaded with suspended matter, method using the installation

Installation for enhanced oil recovery comprising in succession: a polymer storage hopper, a grinding device, a dissolution/maturation tank for the dispersed polymer, and a pump for transferring pressurized polymer solution in the pipeline conveying the injection water for introducing the mixture of polymer and injection water into a well. The grinding device has a chamber for grinding and draining the dispersed polymer comprising a rotor and a stator, and on all or part of the periphery of the chamber, a ring fed by a secondary water circuit. The ring communicates with the chamber for spraying of pressurized water on the blades of the stator. A method implementing the installation is also provided.

Installation for enhanced oil recovery using water soluble polymers, method for implementing same

Improved process for fluidifying flocculated aqueous suspensions of red muds in the production of alumina from bauxite by the Bayer process, which consists:

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Saint Etienne, France

Rene Pich