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A compound solvent and treatment device for treating mud leakage of vibrating screen while drilling

A processing device and vibrating screen technology, which is applied in earthwork drilling, immiscible liquid separation, wellbore/well components, etc., to achieve the effects of large production capacity, reduced maintenance time, and good permeability

Active Publication Date: 2021-04-09
成都西南石大石油工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the micro and nano effects of fine particles, the technology formed based on the application of macro theory is challenged. Therefore, a solvent and treatment method for the separation of oil-water emulsions containing fine particles needs to be formed urgently

Method used

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  • A compound solvent and treatment device for treating mud leakage of vibrating screen while drilling

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the processing device while drilling that adopts compound solvent to treat the leakage of vibrating screen provided by the present invention mainly includes a charging funnel 1, a screw mixer 2, a compound solvent nozzle 3, a centrifuge 4, and a conjoined double-column elaborator. Still and screw discharger 5.

[0026] Wherein, the feed end of the spiral mixer 2 is connected to the discharge port at the lower end of the charging funnel 1, the discharge end is connected to the centrifuge 4, and the compound solvent nozzle 3 is arranged above the spiral mixer 2 to spray the compound solvent into the spiral mixer 2 . The preferred structure is that the screw mixer 2 includes a horizontal screw mixer 21 and an inclined screw mixer 22 located below the screw mixer 21, and the feed end of the screw mixer 21 is connected to the lower end of the charging funnel 1 for discharging. mouth, the discharge end of screw mixer one 21 is connected to the fee...

Embodiment 2

[0030]A configuration method of compound solvent for vibrating screen leakage treatment while drilling: first dissolve 95kg polyoxymethylene dimethyl ether in 750kg cyclohexane, stir and mix evenly, then add 100kg cumene and 50kg propyl acetate, continue to stir, and finally add 5kg of ethylenediamine-β-cyclodextrin, stir and mix everything, and obtain the compound solvent for the treatment of slurry leakage of the vibrating screen while drilling.

Embodiment 3

[0032] Use the treatment device of Example 1 and the compounded solvent of Example 2 to treat the leakage of diesel-based vibrating screen. Concrete operation is as follows: with the rate of 2 tons / hour, the diesel oil-based vibrating screen leaking slurry of oil content 28% (mass fraction) is evenly added in the charging funnel 1, under the stirring conveying state of screw mixer 2, through compound solvent Nozzle 3 sprays the compound solvent configured in Example 2, and after two times of spiral elution, enters centrifuge 4, and the solid material after centrifugation enters spiral discharger 5 with heat transfer oil drying to discharge, and obtains Solid cuttings with an oil content of 1.45% (mass fraction). The liquid material separated from the centrifuge 4 enters the liquid intermediate storage tank 17, and is sent into the still body 7 of the conjoined double-column rectification kettle through the infusion pump 18, and the distillate discharged from the reflux tank 11...

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Abstract

The invention discloses a compound solvent for vibrating screen leakage treatment while drilling, which comprises the following components in parts by weight: 8-12 parts of polyoxymethylene dimethyl ether, 75 parts of cyclohexane, and 8-12 parts of cumene 5 parts of propyl acetate, 0.25-1 part of ethylenediamine-β-cyclodextrin. The drilling-while-drilling treatment device using the compound solvent to treat the leakage of vibrating screen includes a charging funnel, a screw mixer, a compound solvent nozzle, a centrifuge, a conjoined double-column rectification kettle and a screw discharger. The feed end of the spiral mixer is connected to the discharge port at the lower end of the charging funnel, and the discharge end is connected to the centrifuge, and a composite solvent nozzle is arranged above the spiral mixer to spray the composite solvent into the spiral mixer. The liquid outlet of the centrifuge is connected to the feed port of the one-piece double-column rectification kettle, and the solid cuttings outlet of the centrifuge is connected to a screw discharger, and the screw discharger is provided with a device for drying the solid cuttings. heating equipment. By adopting the compound solvent processing device of the present invention, the slurry leakage of the vibrating screen can be efficiently and quickly processed while drilling.

Description

technical field [0001] The invention relates to the technical field of oil-based drilling cuttings treatment, in particular to a compound solvent for treating slurry leakage of a vibrating screen while drilling and a treatment device while drilling. Background technique [0002] As the end product of drilling operations, oil-based drilling cuttings is a typical hazardous waste, which is mainly reflected in its high oil content and high heavy metal content. In addition, it also has the characteristics of complex components, high viscosity, and poor biodegradability. . The current treatment methods for oily drilling cuttings have the characteristics of high energy consumption, poor treatment effect, difficult operation, and complicated process. The solution method has high energy consumption and is easy to cause air pollution, the conventional solvent extraction method consumes too much energy, and the supercritical fluid extraction method requires high equipment. [0003] M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B21/06B01D17/04
CPCB01D17/04E21B21/065E21B21/068
Inventor 柳高杰邹长军杨帆冯萱颐
Owner 成都西南石大石油工程技术有限公司