Environment-friendly oil field sludge treating agent and preparation method thereof

An oilfield sludge, environmentally friendly technology, applied in sludge treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of complex treatment process, uneconomical, high cost, improve cleaning effect Good cleaning effect

Inactive Publication Date: 2015-12-30
XINJIANG KELI NEW TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have many problems
For example, the incineration method transfers soil and water source pollution to the atmosphere, and the biological treatment method takes 41 days to biodegrade 97% of petroleum hydrocarbons; the solvent extraction method has a long process, complicated process, and high treatment costs. Applicable to oily sludge; the solid-liquid separation method has a low oil recovery rate for oily sludge with high oil content and serious pollution
In short, most of these methods have complicated treatment process, high cost, uneconomical, cannot effectively remove sludge pollution, and some even produce new pollution.
More importantly, most of these methods treat sludge as waste, failing to turn waste into treasure and recycle it.

Method used

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  • Environment-friendly oil field sludge treating agent and preparation method thereof
  • Environment-friendly oil field sludge treating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The sludge of a thin oil treatment station in an operation area of ​​Xinjiang Oilfield was tested, and the physical properties of the sludge before treatment are shown in Table 1:

[0013] Table 1

[0014]

[0015] Apply the present invention to test the thin oil treatment station sludge of a certain operation area in Xinjiang oilfield: take by weighing sodium dodecylbenzenesulfonate 5g, sodium dodecanoate 5g, Span (60) 8g, sodium hydroxide 10g, water 72g . First add sodium dodecylbenzenesulfonate and sodium dodecanoate into the reaction kettle, add water and stir for 10 minutes, control the temperature at 50°C, then add sodium hydroxide, stir for 5 minutes, then add Span (60), continue stirring After 10 minutes, an environment-friendly treatment agent for oily sludge in oilfields can be prepared. Then mix 50g of washing agent with 100ml of 50°C hot water, then add 0.5ml of washing agent, stir for 10 minutes at a speed of 300 rpm, and let it stand for 1 hour. The s...

Embodiment 2

[0019] The sludge of a heavy oil treatment station in an operation area of ​​Xinjiang Oilfield was tested, and the physical properties of the sludge before treatment are shown in Table 3:

[0020] table 3

[0021]

[0022] Apply the present invention to the thin oil treatment station sludge of a certain operation area in Xinjiang Oilfield to test: take by weighing sodium dodecylbenzene sulfonate 8g, Span (80) 10g, sodium hydroxide 15g, water 72g. First add sodium dodecylbenzenesulfonate into the reaction kettle, add water and stir for 10 minutes, control the temperature at 50°C, then add sodium hydroxide, stir for 5 minutes, then add Span (80), and continue stirring for 10 minutes to obtain Environmentally friendly oily sludge treatment agent, mix 50g of washing agent with 100ml of 80°C hot water, then add 0.5ml of washing agent, stir for 10 minutes at a speed of 500 rpm, let stand for 1 hour, and remove the bottom sludge Centrifugation, upper oil slick and sewage recovery...

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Abstract

The invention discloses an environment-friendly oil field sludge treating agent and a preparation method thereof. The environment-friendly oil field sludge treating agent comprises surface active substances and a PH value regulator, wherein the surface active substances are an anionic surfactant and a nonionic surfactant. The preparation method comprises the following steps: adding the anionic surfactant into a reaction kettle according to a proportion, adding water, stirring for 10 minutes, controlling the temperature to be 50 DEG C, adding the PH value regulator, stirring for 5 minutes, adding the nonionic surfactant, and stirring for 10 minutes, so as to obtain the environment-friendly oil field sludge treating agent. The environment-friendly oil field sludge treating agent can be used for not only stripping crude oil on the surface of sludge for cleaning, but also reducing the oil sand content of oil slick at the upper part of sludge, and the oil content and the suspension content of water in the middle of the sludge, thereby being low in carbon and environmentally friendly.

Description

technical field [0001] The invention relates to an oilfield sludge treatment technology, in particular to an environment-friendly oilfield sludge treatment agent and a preparation method thereof. Background technique [0002] Various oily solid wastes are produced in the process of oil extraction, transportation, refining and sewage treatment, which is the so-called oily sludge. Oily sludge includes tank cleaning sludge, landing sludge and scum bottom sludge, and contains a large amount of aged crude oil, colloids, suspended solids, bacteria, salts, corrosion products and other substances. The investment in treatment equipment is high, the difficulty is great, the economic benefit is poor, and improper treatment will cause serious environmental pollution. [0003] In the past, the direct burial method was generally used to treat sludge in oil fields. This method not only occupies a large amount of land, but also the harmful substances in the sludge will diffuse through dial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00
Inventor 赵波周少雄李冬菊魏新春苏占云欧阳建立卜魁勇颜亨兵余昌勇
Owner XINJIANG KELI NEW TECH DEV
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