Organic film-forming amine corrosion inhibitor and application thereof
An organic film-forming and corrosion inhibitor technology, applied in the field of organic film-forming amine corrosion inhibitors, can solve problems such as perforation station equipment, pipeline rupture, equipment corrosion, etc., and achieve good water solubility, high corrosion prevention efficiency, and emulsification tendency. small effect
Inactive Publication Date: 2016-07-06
CHENGDU ENERGY ENG
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Problems solved by technology
[0004] in a large amount of H 2 S, CO 2 During the oil and natural gas transmission process of substances such as bacteria, oil and gas well water and pipeline condensate water, the equipment such as main gathering and transportation roads, branch pipelines and gas distribution stations will be severely corroded, especially pipeline ruptures and local perforations and station equipment failure and other vicious accidents
Method used
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Embodiment 1
[0034] 1. Preparation and physical properties of organic film-forming amine corrosion inhibitor
[0035] According to the concentration ratio among the components in Table 1, the organic film-forming amine corrosion inhibitor of the present invention was prepared, and its physical properties are shown in Table 2.
[0036] Table 1 Concentration ratio between each component
[0037] test group
[0038] Among them, the organic amine in the experimental group 1 is C 16 h 33 NH 2 The passivating agent is chromate; the surfactant is a gemini imidazoline-based quaternary ammonium salt type surfactant; the water is deionized water;
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Abstract
The invention belongs to the technical field of metal anticorrosion, and in particular relates to an organic film-forming amine corrosion inhibitor and an application method thereof. An organic film-forming amine corrosion inhibitor of the present invention is prepared from the following substances according to the concentration ratio: organic amine: passivator: surfactant: water=12~20:2~5:2~5:40~ 60. An organic film-forming amine corrosion inhibitor prepared by the invention has no odor, good water solubility, good fluidity, high anti-corrosion efficiency of more than 93%, and small emulsification tendency, and it is compatible with fungicides, corrosion inhibitors, and purifiers commonly used in oil fields. and other chemical reagents have good compatibility, for H 2 S, CO 2 , Cl, O 2 It can be widely used in downhole oil casings, surface equipment, technical system pipelines, refinery processes and metal equipment for water injection stations and sewage treatment stations for oil and gas wells. Corrosion of pipelines.
Description
technical field [0001] The invention belongs to the technical field of metal anticorrosion, and in particular relates to an organic film-forming amine corrosion inhibitor and an application method thereof. Background technique [0002] Corrosion inhibitors refer to those substances that are used to protect the metal surface. Adding a small amount or a small amount of such chemical substances can significantly reduce the corrosion rate of metal materials in this medium until it reaches zero. At the same time, the original physical and mechanical properties of the metal material can be kept unchanged. Rational use of corrosion inhibitors is an effective method to prevent corrosion of metals and their alloys in environmental media. Corrosion inhibitor technology has become one of the most widely used methods in anti-corrosion technology due to its good effect and high economic benefits. Especially in the production and processing of petroleum products, chemical cleaning, atmo...
Claims
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IPC IPC(8): C23F11/14
CPCC23F11/141
Inventor 康勇
Owner CHENGDU ENERGY ENG