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Harmless treatment process of waste oil-based mud

A harmless treatment, oil-based mud technology, applied in sludge treatment, water/sludge/sewage treatment, sludge treatment through temperature control, etc., can solve the problems of long processing time and high energy consumption, and achieve the goal of working The effect of shortening the cycle, increasing the reaction rate, and reducing the difficulty

Active Publication Date: 2018-07-06
四川亿隆环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a harmless treatment process for waste oil-based mud, which solves the problems of excessive energy consumption and long processing time in the prior art

Method used

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Experimental program
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Embodiment

[0032] The harmless treatment process of waste oil-based mud includes the following steps:

[0033] (1) Screening: The oily sludge is passed through a vibrating screen to quickly separate the solid impurities with larger particles, and discharge the slag continuously and quickly.

[0034] (2) Conditioning: before the oily sludge enters the cracking furnace, chemicals are added for conditioning and modification, changing the physical and chemical properties and components of the sludge surface particles, which can reduce the difficulty of cracking and shorten the time required for cracking by about 15%.

[0035] However, the medicaments added in this embodiment include conditioner, surfactant, auxiliary agent, and cracking catalyst; wherein the conditioner can change the physical and chemical properties of the ion surface, so that it can separate crude oil and silt to a certain extent, increasing Reaction contact area; surfactants and auxiliary agents can increase the specific ...

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Abstract

The invention discloses a harmless treatment technology for waste oil base mud and solves the problems of higher energy consumption and overlong treatment time in the prior art. The technology comprising steps of screening, conditioning, conditioning enhancement through preheating, negative-pressure pyrolysis, condensation and fractionation is adopted to treat oily sludge and has the characteristics of high efficiency, energy saving and environment protection; compared with a conventional pyrolysis technology, the harmless treatment technology has the advantages that the work period is shortened by 15%, the energy consumption is reduced by 20%, and the economic benefit is increased remarkably.

Description

technical field [0001] The invention relates to a harmless treatment process for waste oil-based mud. Background technique [0002] As an excellent drilling fluid system, oil-based drilling fluid has the characteristics of high temperature resistance, salt resistance, pollution resistance, good anti-slump performance, good lubricity, good maintenance and stable wellbore wall, and can effectively inhibit water-sensitive formations to the maximum extent. It has the advantages of protecting oil and gas layers. It has been widely used as an important means of drilling deep wells, ultra-deep wells, highly deviated directional wells, horizontal wells and water-sensitive complex formations, and has achieved remarkable results. However, with the use of oil-based drilling fluid, a large amount of waste oil-based mud is produced. [0003] Oily sludge has the characteristics of high oil content, high viscosity, fine particles, and difficult dehydration. Its composition is extremely ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/14C02F11/18C02F11/10
CPCY02W10/40
Inventor 向荣舒忠军
Owner 四川亿隆环保科技有限公司