Novel negative pressure slurry treatment system

Abstract

The invention provides a novel negative pressure slurry treatment system which comprises a rack, a belt type screen transmission device, a head box, a side box, a supporting frame, a micro-vibration device, a negative pressure diversion trench, a screen cleaning device and a driving device. The belt type screen transmission device comprises a screen, a rubber filtering support belt, a side leakage prevention apron board, a driving roller, a guide roller, a front roller support plate, a rear roller support plate and a tensioner; the head box comprises a feeding hole, an upper sealing cover, a shunting buffer tray and an observation window; the side box comprises a secondary filtering device and a gas filtering device; the micro-vibration device comprises a vibration rod, a damping spring, a pneumatic vibration exciter and a fixing rod; the negative pressure diversion trench comprises a negative pressure trench body and a liquid outlet; the driving device comprises a screen driving motor, a screen speed reducer, a mud scraping plate driving motor and a mud scraping plate speed reducer; rapid separation of slurry and rock debris particles is achieved through the micro-vibration device, the filtering device and the negative pressure system, the slurry treatment efficiency is improved, the cost is reduced, and environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of mud treatment in oil exploitation, construction and environmental protection industries, and in particular relates to a novel negative pressure mud treatment system in the field of oil drilling. Background technique [0002] Mud, also known as drilling fluid, is an essential circulating medium in oil drilling construction and the "blood" of drilling. In the oil drilling industry, the drilling fluid shale shaker is the first-level solid control equipment, and its main purpose is to clean up harmful solid particles in the drilling fluid. Drilling fluid shale shakers were introduced into the petroleum industry through mining equipment in the early 20th century. From the early uniaxial vibration, the old-fashioned vibrating screen with elliptical vibration shape, to the use of finer screen mesh and the addition of hydrocyclones to form the second-level solid control, and then developed to the third-level sol...

AI Technical Summary

Problems solved by technology

From the early uniaxial vibration, the old-fashioned vibrating screen with elliptical vibration shape, to the use of finer screen mesh and the addition of hydrocyclones to form the second-level solid control, and then developed to the third-level solid control, and then added the centrifuge, so that, The structure of the whole set of solids control equipment is becoming larger and more complex

At present, the four-stage mud purification system (vibrating screen, vacuum degasser, desander, desilter) has been used in the drilling industry for more than 30 years. Although the processing capacity and product quality have made great progress, but in actual use In the process, there are a series of problems such as heavy equipment weight, large floor area, large screen consumption, serious mud running out, and poor working environment.

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