An environmental protection treatment system that can realize the harmless treatment of drilling waste

Abstract

The invention discloses an environment-friendly treatment system capable of realizing harmless treatment of drilling waste. A first liquid-phase collecting tank is arranged below a liquid waste outlet of a high-frequency drying vibrating sieve, a solid waste outlet of the high-frequency drying vibrating sieve is connected with an inlet of a rock waste spin-drying machine through a first screw conveyer, a second liquid-phase collecting tank is arranged below a liquid waste outlet of the rock waste spin-drying machine, and a solid waste outlet of the rock waste spin-drying machine is connected with a solid waste transfer tank through a second screw conveyer; the first and second liquid-phase collecting tanks are connected with an inlet of a high-speed variable-frequency centrifuge after being connected with a first mud pump in series through pipelines respectively, a solid waste outlet of the high-speed variable-frequency centrifuge is connected with the solid waste transfer tank through a third screw conveyer, and a third liquid-phase collecting tank is arranged below a liquid waste outlet of the high-speed variable-frequency centrifuge. With the adoption of the system, treatment of waste while drilling can be realized, a liquid phase can be recycled, solid waste is subjected to harmless treatment, potential pollution risks are eliminated, the drilling cost is saved, and drilling operation requirements for having characteristics of flowability, temporality and dispersity are met.

Description

technical field

[0001] The invention belongs to the field of oil and gas drilling, and in particular relates to an environment-friendly treatment system capable of realizing harmless drilling waste. Background technique

[0002] Drilling waste disposal has always presented various challenges, including the application of new technologies, improving equipment efficiency, reducing disposal costs, and complying with increasingly stringent environmental standards. At present, there are many kinds of waste mud treatment equipment on the market, such as filter press, centrifuge, solidification skid, etc., through different process combinations, although the requirement of "mud does not fall to the ground" can be met, the drill waste after treatment is still there. Potential environmental pollution risk. Contents of the invention

[0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an environm...

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