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Method for preparing harmless rock fragments by using well drilling waste liquid and application of rock fragments

A harmless technology for drilling waste fluid, applied in the field of material application, can solve problems such as environmental, soil and water pollution, and achieve the effects of simple production process, convenient use, and wide adaptability

Active Publication Date: 2013-08-14
薛西伟
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It uses the harmful cuttings and magma residues in the drilling mixed waste produced in the process of oil drilling and production as raw materials after being harmless, and solves the pollution problems caused by oil drilling companies to the environment, soil and water during large-scale mining.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] First, harmless drilling cuttings and magma mixed waste are harmlessly treated to prepare harmless cuttings. This method is completed through the following steps:

[0055] 1. Separation

[0056] Add a well-compatible separating agent with a mass percentage of 0.17% to the drilling waste fluid, stir well, stir evenly, and seal it for 6-8 hours to demulsify, oil-water mixture, oil-water mixture, and make crude oil from the sludge The crude oil is recovered after freeing from the mixture to the surface. After the above treatment, the remaining substances are tested, and the crude oil content is reduced to 3%. The remaining substances are mainly composed of cuttings, mud sand, waste water and suspended organic matter;

[0057] 2. Degreasing and sedimentation

[0058] Add the compatible oxidation adsorbent with a mass percentage of 0.205% to the substance prepared in step 2 and stir evenly, and leave it for about 4 to 6 hours. The oil-dispelling and settling agent will quic...

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Abstract

The invention discloses a method for preparing harmless rock fragments by using well drilling waste liquid and an application of the rock fragments. The method comprises four steps of separation, oil removal sedimentation, oxidation sedimentation and oxidation adsorption to ensure that the well drilling waste liquid is subjected to harmless treatment, the harmless rock fragments can be separated from the well drilling waste liquid, and the rest is water which can reach an industrial water standard. The harmless rock fragments treated by a harmless technology are used as main materials for preparing dry-mixed mortar. By adopting the method, the phenomena that the petroleum drilling enterprises in the past dig pits for landfill of harmful mixed wastes, the soil is destroyed, the environment is polluted and resources are wasted are avoided; and moreover, a precedent for carrying out harmless comprehensive treatment, recycling waste mixed resources, and promoting the development of cyclic economy for the petroleum drilling enterprises to make money is opened up for the petroleum drilling enterprises, and the method meets the requirements of the strategic planning of energy saving and emission reduction comprehensive utilization during the twelfth five-year of the country. The method has considerable economic benefits and wide market application prospects.

Description

technical field [0001] The invention relates to the field of application of materials such as construction and decoration engineering industries, and in particular to a mixed waste such as drilling cuttings magma, oil sludge, and waste water residue. It is made into an environment-friendly multi-purpose dry-mixed mortar by adopting the preparation method of harmless treatment technology. Background technique [0002] During the drilling and production process of oil companies, because some drilling fluid and chemical additives are added to the drilling operation, a large amount of mixed waste materials such as drilling cuttings magma, oil sludge, waste water and waste residue will be discharged during oil field drilling and production operations. And these mixed wastes contain chemical components and crude oil components, if they are not treated in a timely and harmless manner, they will be directly dug and landfilled. Once leakage occurs, it will pollute the land, groundwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00C04B28/00C04B18/12
CPCY02W30/91
Inventor 薛景辉
Owner 薛西伟
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