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Foamless cleaning agent as well as preparation method and application of foamless cleaning agent

A cleaning agent, potassium acetate technology, applied in the field of oil drilling, can solve the problems of unsustainable gas production operation, achieve good dispersion and solubilization ability, prevent clogging, and ensure the effect of normal operation

Active Publication Date: 2018-12-04
广汉市福客科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The non-foaming cleaning agent of the present invention achieves the effect of high efficiency and no foaming, and solves the problem that the gas production operation cannot be continued due to the influence of a large amount of foam on the normal operation of the oil and gas production and transportation pressurization equipment during on-site use. At the same time, it pays attention to the anti-corrosion protection of downhole casing and tubing, prolongs its service life, and can also meet the requirements of carrying high-density solid phase substances washed out from the bottom of the well while cleaning. The strong inhibition of the cleaning agent of the present invention is more conducive to water sensitivity. The protection of shale oil and gas reservoirs, each component is environmentally friendly and harmless to the environment

Method used

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  • Foamless cleaning agent as well as preparation method and application of foamless cleaning agent
  • Foamless cleaning agent as well as preparation method and application of foamless cleaning agent
  • Foamless cleaning agent as well as preparation method and application of foamless cleaning agent

Examples

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Effect test

Embodiment 1

[0037] A kind of non-foaming cleaning agent of the present embodiment, described cleaning agent comprises coconut acid diethanolamide 5kg, n-decyl glucoside 5kg, polydimethylsiloxane 0.3kg, oleic acid group hydroxyethylimidazoline 1kg, isothiazolinone 0.05kg, potassium acetate 7kg, xanthan gum 0.3kg, paraffin oil 30kg and water 30kg.

[0038] The preparation method of the non-foaming cleaning agent of the present embodiment, comprises the steps:

[0039] (1) take by weighing according to the weight of each component for subsequent use;

[0040] (2) The water taken by weighing is put into the stirred tank, then the potassium acetate that is weighed is added, stirred evenly, fully dissolving, obtains potassium acetate aqueous solution for subsequent use;

[0041] (3) under the condition of stirring, the xanthan gum weighed is added in the potassium acetate aqueous solution, and the stirring tank is heated, and the heating temperature is to 40° C.;

[0042] (4) The solution hea...

Embodiment 2

[0046] A kind of non-foaming cleaning agent of the present embodiment, described cleaning agent comprises cocoic acid diethanolamide 7.5kg, n-decyl glucoside 10kg, polydimethylsiloxane 0.6kg, oleic acid group hydroxyethyl Imidazoline 2kg, isothiazolinone 0.22kg, potassium acetate 9kg, xanthan gum 0.35kg, paraffin oil 42kg and water 35kg.

[0047] The preparation method of the non-foaming cleaning agent of the present embodiment, comprises the steps:

[0048] (1) take by weighing according to the weight of each component for subsequent use;

[0049] (2) The water taken by weighing is put into the stirred tank, then the potassium acetate that is weighed is added, stirred evenly, fully dissolving, obtains potassium acetate aqueous solution for subsequent use;

[0050] (3) under the condition of stirring, the xanthan gum weighed is added in the potassium acetate aqueous solution, and the stirring tank is heated, and the heating temperature is to 45° C.;

[0051] (4) the solution...

Embodiment 3

[0055] A kind of non-foaming cleaning agent of the present embodiment, described cleaning agent comprises cocoic acid diethanolamide 10kg, n-decyl glucoside 15kg, polydimethylsiloxane 1kg, oleic acid group hydroxyethylimidazoline 3kg, isothiazolinone 0.4kg, potassium acetate 11kg, xanthan gum 0.4kg, paraffin oil 55kg and water 40kg.

[0056] The preparation method of the non-foaming cleaning agent of the present embodiment, comprises the steps:

[0057] (1) take by weighing according to the weight of each component for subsequent use;

[0058] (2) The water taken by weighing is put into the stirred tank, then the potassium acetate that is weighed is added, stirred evenly, fully dissolving, obtains potassium acetate aqueous solution for subsequent use;

[0059] (3) under the condition of stirring, the xanthan gum weighed is added in the potassium acetate aqueous solution, and the stirring tank is heated, and the heating temperature is to 50° C.;

[0060] (4) The solution heat...

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Abstract

The invention discloses a foamless cleaning agent as well as a preparation method and application of the foamless cleaning agent. The cleaning agent comprises coconut fatty acid diethanolamide, n-decyl glucoside, polydimethylsiloxane, oleic hydroxyethyl imidazoline, isothiazolinone, potassium acetate, xanthan gum, paraffin oil and water. Oleic hydroxyethyl imidazoline in the foamless cleaning agent disclosed by the invention has a corrosion inhibition effect, so that a down-hole casing and an oil pipe can be subjected to corrosion protection when being cleaned, and the service life is prolonged; isothiazolinone has a bactericidal effect; the xanthan gum can improve the viscosity of the cleaning agent, so that the suspending capability is provided for solid-phase separation in a cleaning process, and a requirement of carrying a high-density solid-phase substance cleaned in a downhole is met; and meanwhile, the xanthan gum has a spatial net structure, so that the prepared cleaning agentproduct is more stable.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling, and in particular relates to a non-foaming cleaning agent and its preparation method and application. Background technique [0002] At present, in the exploration and development of oil and gas wells, with the continuous increase of deep wells, high-temperature wells and shale gas wells, the application of oil-based drilling fluid is also increasing. However, it is also very easy to adhere to the downhole casing, tubing and tool string, and it is not easy to remove; thus, it has caused serious damage to the multi-stage bridge plug setting, electrical measurement, perforation operation and oil and gas production and transportation operations in well completion operations. Extremely restrictive. Usually, the residue of oil-based drilling fluid adhering to the casing wall or tubing wall will cause the failure of bridge plug setting, the lowering of electric measuring tools and perforatin...

Claims

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Application Information

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IPC IPC(8): C09K8/52C09K8/54
CPCC09K8/52C09K8/54
Inventor 金承平杨亚东余代美许磊王泽东张超陈波黄波黄建波
Owner 广汉市福客科技有限公司
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