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Multifunctional sulfur elimination agent as well as preparation method and application thereof

A multi-functional, sulfur-removing agent technology, applied in the direction of botany equipment and methods, applications, separation methods, etc., can solve the problems of not having excellent sterilization, corrosion inhibition and sulfur removal capabilities at the same time, to achieve suitable scale production, Efficient sterilization and simple operation

Inactive Publication Date: 2019-03-29
庆阳轩通石油工程技术服务有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a variety of sulfur removal agents are disclosed in the prior art, they generally cannot have excellent sterilization, corrosion inhibition and sulfur removal capabilities at the same time

Method used

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  • Multifunctional sulfur elimination agent as well as preparation method and application thereof
  • Multifunctional sulfur elimination agent as well as preparation method and application thereof
  • Multifunctional sulfur elimination agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] At room temperature, put 50g of hydroxyethylhexahydro-s-triazine in a beaker, then add 25g of dodecyldimethylbenzyl ammonium chloride, then add 15g of ethylene glycol monobutyl ether, and finally add 10g of distilled water , stirred at a rotating speed of 120r / min for 5min to obtain a multifunctional desulfurizer, and the pH value of the multifunctional desulfurizer is 8.7.

Embodiment 2

[0038] At room temperature, put 50g of ethylhexahydro-s-triazine in a beaker, then add 25g of isothiazolinone, then add 15g of ethylene glycol dibutyl ether, and finally add 10g of distilled water, and stir at a speed of 120r / min After 5 minutes, a multifunctional desulfurizer was obtained, and the pH value of the multifunctional desulfurizer was 7.7.

Embodiment 3

[0040] At room temperature, put 50g of hydroxypropyl hexahydro-s-triazine in a beaker, then add 25g of cetylpyridinium bromide, then add 15g of dipropylene glycol monomethyl ester, and finally add 10g of distilled water. Stirring at a speed of 5min for 5min to obtain a multifunctional desulfurizer, the pH value of the multifunctional desulfurizer is 8.3.

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Abstract

The invention provides a multifunctional sulfur elimination agent as well as a preparation method and application thereof, and belongs to the technical field of oil gas field development. The invention provides the multifunctional sulfur elimination agent, which is prepared from the following ingredients in parts by weight: 50 to 60 parts of triazine derivatives, 25 to 35 parts of sterilization corrosion inhibitors and 5 to 15 parts of mutual solvents, wherein the sterilization corrosion inhibitors are one or more of quaternary ammonium salt sterilization corrosion inhibitors, oxazoline sterilization corrosion inhibitors and pyridine sterilization corrosion inhibitors. The triazine derivatives are used as sulfur elimination agents to be matched with the sterilization corrosion inhibitors;under the effects of the mutual solvents, by limiting the dosage of various ingredients, the multifunctional sulfur elimination agent with higher sterilization, corrosion inhibition capability and sulfur elimination capability is obtained through compounding. Through the embodiment, the corrosion inhibition rate of the multifunctional sulfur elimination agent provided by the invention is 86 to 95percent, the sterilization rate is as high as 99 percent, and the sulfur elimination rate can reach 98 percent.

Description

technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a multifunctional desulfurizer and its preparation method and application. Background technique [0002] Hydrogen sulfide will be produced during the development of oil and gas fields. Hydrogen sulfide will enter the ground and the gathering and transportation system along with the oil extraction. In addition to bringing poison to animals and plants, it will also cause corrosion of the pipelines of the gathering and transportation system, threatening the integrity of the drilling and production process. Every link even endangers the health of oilfield workers. With the continuous exploration and development of domestic oilfields, hydrogen sulfide pollution has become an important safety hazard in oilfields. How to efficiently and safely construct in oilfield operating areas has become the focus of each oilfield. [0003] In order to reduce the harm of hydro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/52C02F1/50A01N33/12A01N43/40A01N43/80A01P1/00C02F101/10
CPCA01N33/12A01N43/40A01N43/80B01D53/52B01D53/78C02F1/50C02F2101/101
Inventor 欧阳冬李绍和孟楠杨俊姚仕国黄航鹃刘锋李亮
Owner 庆阳轩通石油工程技术服务有限责任公司
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