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Leaching agent for diesel oil-based or/and white oil-based oil-containing drilling cuttings as well as preparation method and application of leaching agent

A technology of drilling cuttings and white oil, applied in the field of environmental protection treatment of oil drilling, to achieve good biodegradability, scientific design, and remarkable results

Active Publication Date: 2021-06-29
CHENGDU DEDAO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to: provide a kind of leaching agent that is used for diesel oil-based or / and white oil-based oily drill cuttings, solves the problem that none of the leaching agents in the prior art is suitable for diesel-based oily drill cuttings and Applicable to problems with white oil-based oily drilling cuttings

Method used

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  • Leaching agent for diesel oil-based or/and white oil-based oil-containing drilling cuttings as well as preparation method and application of leaching agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment discloses the raw material composition of the leaching agent of the present invention, specifically as shown in the following table:

[0033] Table 1

[0034] serial number Dichloromethane (parts) Dichloroethane (parts) Isopropyl myristate (part) Polysiloxane (parts) 1 85 0 9 6 2 0 90 6 4 3 45 40 5 10 4 30 60 4 6 5 60 30 5 5 6 50 30 10 10

[0035] The parts described in this example are parts by volume.

Embodiment 2

[0037] This embodiment discloses the preparation method of the leaching agent of the present invention, specifically: preparing each raw material in parts by volume, mixing them uniformly, and obtaining the product.

Embodiment 3

[0039] This embodiment discloses the investigation of the deoiling effect of the leaching agent of the present invention on diesel-based oily drilling cuttings and white oil-based oily drilling cuttings, specifically:

[0040] Mix 1 part by mass of oily drill cuttings with 8 parts by volume of leaching agent, and stir for 2 hours at a low shear rate of 500 rpm for leaching. After stirring and leaching, the solid and liquid phases are separated by centrifugation, and the solid phase is dried at 105°C to obtain deoiled oily drill cuttings. Wherein, when the unit of mass parts is g, the unit of volume parts is mL.

[0041] Table 2

[0042]

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Abstract

The invention discloses a leaching agent for diesel oil-based or / and white oil-based oil-containing drilling cuttings as well as a preparation method and an application thereof, belongs to the field of environment-friendly treatment of petroleum drilling, and solves the problem that no leaching agent is suitable for both diesel oil-based oil-containing drilling cuttings and white oil-based oil-containing drilling cuttings in the prior art. The invention relates to the leaching agent for diesel oil-based or / and white oil-based oil-containing drilling cuttings. The leaching agent comprises the following components in parts by volume: 80-95 parts of chlorinated hydrocarbon, 1-20 parts of isopropyl myristate and 1-20 parts of polysiloxane. The method is scientific in design and ingenious in conception. The invention creatively provides the leaching agent which can be used for diesel oil-based oil-containing drilling cuttings and also can be used for white oil-based oil-containing drilling cuttings. The leaching agent disclosed by the invention is non-flammable, high in safety, good in compatibility, capable of effectively desorbing various organic pollutants on the oil-containing drilling cuttings, and relatively good in biodegradability.

Description

technical field [0001] The invention belongs to the field of petroleum drilling environmental protection treatment, and in particular relates to a leaching agent for diesel-based or / and white-oil-based oily drill cuttings, a preparation method and an application. Background technique [0002] With the increasing difficulty in the exploitation of oil and gas resources, oil-based drilling fluid is used more and more. Its stability under high temperature conditions and good lubricity have incomparable advantages in deep wells and ultra-deep wells. . However, during the drilling process, a large amount of oily drilling cuttings and oily waste will inevitably be produced, and the leached substances are highly toxic and difficult to biodegrade. Therefore, untreated discharge of oily drill cuttings will cause great pollution to soil and water bodies. With the enhancement of people's awareness of environmental protection, the oily drilling cuttings and oily waste generated during ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/04
CPCC10G1/045
Inventor 吴娇周翰操亮
Owner CHENGDU DEDAO IND
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