Shale oil and gas fracturing flow-back fluid flocculation treatment module

Abstract

The invention relates to a shale oil and gas fracturing flow-back fluid flocculation treatment module which comprises a skid seat, an electric flocculation unit, a chemical flocculation unit, a combination manifold, a water inlet manifold and a water outlet manifold, wherein the electric flocculation unit and the chemical flocculation unit are fixed on the skid seat; the electric flocculation unit comprises a plurality of groups of electric flocculation reactors; the chemical flocculation unit comprises a mixing manifold, a static mixer and a plurality of filling heads; the mixing manifold is fixed on the skid seat; the static mixer is arranged in the mixing manifold; the filling heads are arranged on the pipeline of the mixing manifold respectively; water inlet connectors of the electric flocculation reactors are connected with the water inlet manifold respectively; water outlet connectors of the electric flocculation reactors are connected with the water outlet manifold respectively; the inlet end of the mixing manifold is connected with the water inlet manifold; the outlet end of the mixing manifold is connected with the water outlet manifold; and the outlet end of the mixing manifold is connected with the water inlet manifold through the combination manifold. The shale oil and gas fracturing flow-back fluid flocculation treatment module is convenient to transport, can separate or combine a chemical flocculation treatment technology and an electric flocculation technology, has a high treatment effect and is low in cost.

Description

technical field [0001] The invention relates to the field of shale oil and gas fracturing flowback fluid treatment equipment, in particular to a shale oil and gas fracturing flowback fluid flocculation treatment module. Background technique [0002] Flocculation is one of the most important physical and chemical treatment methods in water treatment technology, including chemical flocculation and electro-flocculation. Chemical flocculation technology is to achieve the purpose of solid-liquid separation by adding a variety of chemical flocculants to wastewater, and through chemical reaction. Electroflocculation technology is a new type of flocculation technology. Under the action of applied voltage, the cations generated by soluble anodes (such as iron anodes, aluminum anodes and other metal anodes) are hydrolyzed, polymerized and oxidized in water to generate a series of reactions. The flocculant is separated after the reaction. [0003] Among the two flocculation technolog...

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Problems solved by technology

[0004] At present, flocculation treatment equipment is mostly used for fixed sewage treatment equipment, which has poor mobility and is difficult to adapt to the field operation requirements of shale oil and gas fields.

At the same time, due to the many and complex components of shale oil and gas flowback fluid, a single chemical flocculation equipment or electrocoagulation equipment does not have a good effect on treating shale oil and gas flowback fluid

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