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Sulfur removal agent suitable for production of oil-gas well

A technology for oil and gas wells and alkanolamines, which is applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of blocking oil and gas channels and affecting the production of oil and gas wells, and achieves the effect of rapid response and simple formula

Inactive Publication Date: 2012-10-03
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alkaline desulfurizers currently used in oilfields need to add more desulfurizers to reach the 2ppm standard, and the interaction between these alkaline desulfurizers and hydrogen sulfide will generate sediments, block oil and gas channels, and affect oil and gas wells. Production

Method used

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  • Sulfur removal agent suitable for production of oil-gas well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put 20g of methanol in a 500ml three-necked flask, then add 30g of hydroxyethylhexahydro-s-triazine and 20g of triethanolamine, stir for 30min, add 130g of water, stir for 10min and mix evenly to obtain the product.

Embodiment 2

[0021] Put 10g of ethanol into a 500ml three-necked flask, then add 50g of hydroxyethylhexahydro-s-triazine and 10g of methyldiethanolamine, stir for 20min, add 130g of water, stir for 10min and mix evenly to obtain the product.

Embodiment 3

[0023] Put 40g of methanol in a 500ml three-necked flask, then add 20g of hydroxyethylhexahydro-s-triazine and 40g of monoethanolamine, stir for 40min, add 100g of water, stir for 10min and mix evenly to obtain the product.

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Abstract

The invention relates to a sulfur removal agent suitable for the production of an oil-gas well. The sulfur removal agent comprises the following components in percentage by mass: 10 to 25 percent of hexahydro-1,3,5-tris(hydroxyethyl)-s-triazine, 5 to 20 percent of alcohol amine, 5 to 20 percent of small molecular alcohol and the balance of water. The alcohol amine is one or a mixture of more thantwo of monoethanolamine, ethyleneglycol amine, diisopropanolamine, methyldiethanolamine and triethanolamine; and the small molecular alcohol is one or a mixture of more than two of methanol, ethanol and propanol. The sulfur removal agent has a simple formula, can be soluble with water, and can effectively reduce the content of hydrogen sulfide in crude oil or natural gas; simultaneously, productsgenerated by the sulfur removal agent and the hydrogen sulfide are water-soluble, and cannot block a mineshaft and influence the normal production of the oil-gas well; and the sulfur removal agent can achieve effects at the temperature of 30 to 120 DEG C and can be quickly reacted with the hydrogen sulfide.

Description

technical field [0001] The invention relates to the treatment of hydrogen sulfide for safety consideration in the production process of oil and gas wells in the field of oil and gas field development. technical background [0002] During the development of sour oil and gas fields, due to the presence of hydrogen sulfide, corrosion and damage to oil pipelines, instruments and equipment often occur. At the same time, hydrogen sulfide is also a serious threat to personal safety due to its highly toxic nature. [0003] Hydrogen sulfide is a highly irritating gas with a strong smell of rotten eggs. The presence of hydrogen sulfide in the production process of oil and gas wells will not only cause corrosion of equipment and pipelines, poisoning of catalysts, but also seriously threaten personal safety. At present, there are many methods for treating hydrogen sulfide waste gas at home and abroad. According to its weak acidity and strong reducibility, desulfurization can be divided...

Claims

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Application Information

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IPC IPC(8): B01D53/74B01D53/52
Inventor 李勇明赵金洲张峰李晖曹学军刘华杰
Owner SOUTHWEST PETROLEUM UNIV
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