Solid-liquid separation and vibrating liquid-removing drying integrated device

Abstract

The invention provides a solid-liquid separation and vibrating liquid-removing drying integrated device, and the device comprises a liquid phase collection storehouse, a drilling fluid circulating pot, a vibrating screen, a sucking disc, a liquid inlet pipe, a tee joint, a vacuum pump, a control valve, a liquid outlet pipe, a clapboard, a drilling cuttings collection storehouse, a screen cloth anda gate valve. Mechanical vibration and vacuum adsorption principles are used for the device, thus, solid phase moisture content of a solid-liquid mixture returned up from a shaft bottom is reduced after the solid-liquid mixture is subjected to solid-liquid separation and liquid-removing drying by the vibrating screen, thus, the solid-liquid mixture meets rock debris transportation requirements, pollution to environment caused by waste generated in a drilling process is reduced effectively, and the recycled drilling fluid is collected for cycle use in the drilling fluid circulating pot. The device has the advantages of being simple in structure, needing low energy consumption, being convenient to use, being mounted quickly, having high equipment reliability, needing low manufacturing costand occupying small area; moisture content of the treated drilling cuttings is not more than 60%, and the drilling cuttings meet drilling cuttings transportation reequipments; and the device is used for a drilling fluid solid phase control and no-landing integrated treatment system, and simplifies system constitution.

Description

Technical field [0001] The invention relates to the technical field of petroleum drilling equipment, in particular to an integrated solid-liquid separation and vibration de-liquid drying device suitable for an integrated treatment system for solid phase control and non-grounding of drilling fluid. Background technique [0002] With the increasing depth, difficulty, and complexity of petroleum exploration and development, safety, environmental protection, and health management requirements are becoming more and more stringent. The requirements for solid phase control and environmental treatment of drilling fluids are getting higher and higher, and the whole process of drilling is required. To realize that the drilling fluid and discarded drill cuttings do not fall to the ground, the drill cuttings separated during the solid phase control of the drilling fluid need to be collected and transported away from the well site, which effectively reduces the environmental pollution of the w...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the first-stage solid-liquid separation equipment in the solid control system used by the well team is a triple-network shale shaker, which only performs preliminary solid-liquid separation for the solid-liquid mixture in the wellbore, and the separation ability is relatively weak, especially for drilling in the upper formation. When the displacement of the pump is relatively large, it is easy to paste the sieve and run out of slurry. The moisture content of the drill cuttings discharged after the solid-liquid separation of the vibrating screen cannot meet the requirements for drilling cuttings transportation. It is necessary to connect a vibrating screen or add more sets of equipment in series. Deliquoring and drying the discharged drill cuttings, resulting in a large and complex drilling fluid solid phase control and non-landing treatment system, which occupies a large area, high manufacturing cost, and high energy consumption

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