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Drilling fluid mud screening and drying treatment method and drilling fluid mud screening device

A processing method and drilling fluid technology, which is applied in the direction of wellbore/well components, earthwork drilling, flushing wellbore, etc., can solve the problems of increasing the total amount of centralized processing, large storage and transportation volume, landing, etc., so as to reduce drilling Increase the liquid content of crumbs, improve the drying effect, and facilitate the collection

Inactive Publication Date: 2019-03-15
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only the volume of storage and transportation is large, but also the pollution caused by percolated liquid falling to the ground and volatilization of gas and volatile substances is prone to occur during storage and transportation, and the total amount of centralized treatment is increased, resulting in excessive cost of harmless treatment. high

Method used

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  • Drilling fluid mud screening and drying treatment method and drilling fluid mud screening device
  • Drilling fluid mud screening and drying treatment method and drilling fluid mud screening device
  • Drilling fluid mud screening and drying treatment method and drilling fluid mud screening device

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Embodiment Construction

[0043] The drilling fluid mud screening device includes a frame 1, a driving drum 2, a driven drum 3, a driving motor 4, a screen 5 and a vacuum box 6; A collecting box 28 is arranged on the rack 1 . The frame 1 on the other side of the driving drum 2 is equipped with a driving motor 4, and the driving motor 4 is connected to the driving drum 2 through a reducer; the other end of the frame 1 is equipped with a driven drum 3 through a tensioner 7, and the tensioner 7 Consists of a slide rail 25, a mounting plate 26 and an adjustment screw 27, a mounting plate 26 is slidably installed on the slide rail, an adjustment screw 27 is arranged on the mounting plate 26, and the adjustment screw 27 is connected with the frame 1 through a screw nut. The driving drum 2 and the driven drum 3 are provided with screens 5 .

[0044]The driving drum 2 and the driven drum 3 are respectively composed of a drum shaft 8, a supporting drum 9 and a transmission pulley 10. The drum shaft 8 is fixed ...

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Abstract

The invention relates to a mud drying treatment method and a sieving device used for mud drying treatment, which belong to the technical fields of petroleum drilling fluid solid-liquid separation and drilling cuttings drying treatment. The mud drying treatment method comprises the steps of distributing drilling fluid mud through a fluid distribution tank of a feed box, adsorbing through a vacuum box, sweeping through an air knife, and carrying out drying treatment. The separated drilling cuttings moisture content can be effectively reduced, meanwhile, harmful gas and organic volatile impurities in drilling cuttings are effectively removed, and the drilling cuttings can be conveniently collected, stored and transported. In addition, through adjusting an air outlet angle and an air volume of the air knife, different species of materials at different places on a screen can be reversely blown, so that a drying effect of mud is improved, and the method and the device have positive meaning on reducing drilling cuttings pollution on atmosphere and harmfulness of an operation environment.

Description

technical field [0001] The invention relates to a drilling fluid mud screening and drying treatment method and a drilling fluid mud screening device, which belong to the technical field of solid-liquid separation of petroleum drilling fluid and drilling cuttings drying treatment. Background technique [0002] During oil drilling operations, the drilling fluid is injected into the wellbore through the water hole of the drilling string and returned to the surface circulation system through the annular space formed between the drilling string and the wellbore. When the drilling fluid returns from the wellbore, drill cuttings are carried out. The drill cuttings are separated by vibrating screens, desanders, and centrifuges. The separated drill cuttings contain a large amount of drilling fluid, formation gas and other polluting components. [0003] At present, the separated drilling cuttings are usually discharged in the sewage pool of the well site, or solidified, or landfilled....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B21/06
CPCE21B21/066
Inventor 马卫国吴霁薇徐遵宏胡小刚牟长清刘少胡张海峰曾琦杨毅成
Owner YANGTZE UNIVERSITY
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