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Oil well on-line supramolecular cleaning agent, preparation method and on-line cleaning application method

A cleaning agent and supramolecular technology, applied in chemical instruments and methods, earth square drilling, cleaning equipment, etc., can solve the problems of long time, consumption, general cleaning effect, etc., and achieve improved cleaning efficiency, high descaling rate, The effect of easy operation

Active Publication Date: 2019-02-15
QINGDAO JIENENG ENVIRONMENTAL PROTECTION CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method takes a long time, and the cleaning effect is generally

Method used

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  • Oil well on-line supramolecular cleaning agent, preparation method and on-line cleaning application method

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Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] The on-line supramolecular cleaning agent for oil wells provided by the present invention comprises the following components in weight percent: 10% to 15% of acrylic acid, 11% to 15% of hydroxyethylidene diphosphonic acid, 4.5% to 7% of fatty alcohol polyoxyethylene ether, Dodecyl dimethyl benzyl ammonium chloride 2% ~ 3%, benzotriazole 2% ...

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Abstract

The invention discloses an online supermolecular cleaning agent for an oil well, a preparation method and an online cleaning using method. The online supermolecular cleaning agent for the oil well is prepared from the following components in percentage by weight: 10%-15% of acrylic acid, 11%-15% of 1-hydroxyethane 1,1-diphosphonic acid, 4.5%-7% of fatty alcohol polyoxyethylene ether, 2%-3% of dodecyl dimethyl benzyl ammonium chloride, 2%-3% of 1H-benzotriazole, 2%-3% of trisodium phosphate, 1.5%-2.5% of ethylenediamine triacetic acid, 2%-3% of polyacrylic acid, 2%-2.5% of sodium silicate and the balance of water. With the adoption of the online supermolecular cleaning agent for the oil well, the oil well is cleaned rapidly and conveniently, and the cleaning efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to an online supramolecular cleaning agent for oil wells, a preparation method and an online cleaning and using method. Background technique [0002] The oil well system in the oil field is prone to corrosion and scaling. The dirt is mainly scale and wax deposition, and there is also a large amount of rust. Scaling will significantly reduce the flow rate and production, and even blockage and jam the pump in severe cases. In addition, the corrosion of oil wells is not only conventional chemical corrosion, What's more important is that scaling leads to narrowing of the pipe diameter and increase of the flow velocity, which accelerates the erosion of the bottom of the pipe by the sinking sediment, resulting in corrosion and leakage of the pipe network. In the prior art, physical descaling is usually used to clean the dirt in the oil well. The oil production pipe usually exten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/524C09K8/528C09K8/54E21B37/06
CPCC09K8/524C09K8/528C09K8/54C09K2208/32E21B37/06
Inventor 金保全
Owner QINGDAO JIENENG ENVIRONMENTAL PROTECTION CO LTD
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