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A kind of organic composite high-efficiency sulfur removal agent for oil and gas fields, its preparation method and application

An oil and gas field, organic technology, applied in the field of organic compound high-efficiency sulfur removal agent for oil and gas fields, can solve the problems of staff poisoning, economic loss, and threat to the personal safety of on-site operators, and achieve wide application range, great economic and social benefits, The effect of broad application prospects

Active Publication Date: 2019-06-07
陕西森瑞石油技术开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of a large amount of sulfide will cause strong corrosion to equipment, pipelines, storage and transportation facilities in the process of oil exploitation, gathering and refining, and cause huge economic losses, and even occur due to H 2 S leakage caused staff poisoning accidents, which seriously threatened the personal safety of on-site workers

Method used

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  • A kind of organic composite high-efficiency sulfur removal agent for oil and gas fields, its preparation method and application
  • A kind of organic composite high-efficiency sulfur removal agent for oil and gas fields, its preparation method and application
  • A kind of organic composite high-efficiency sulfur removal agent for oil and gas fields, its preparation method and application

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Embodiment Construction

[0019] The present invention will be further described by examples below. It should be noted that the following examples are only examples of the present invention, and do not represent the limited scope of rights of the present invention. The scope of protection of rights of the present invention is as the criterion with the claims.

[0020] (1) Sulfur removal efficiency experiment

[0021] Simulated water configuration reference: Q / SY 126-2014 Simulated water: 50g NaCl, 2.0g MgCl 2 ·6H 2 O, 6.0gNaSO 4 , 4g anhydrous CaCl 2 , 0.4g NaHCO 3 .

[0022] Preparation of hydrogen sulfide solution: Prepared by a Kipp generator in an indoor fume hood, put the prepared hydrogen sulfide into simulated water, and determine the concentration of hydrogen sulfide to be 500mg / L±20mg / L by iodometric titration.

[0023] (1) Preparation of sulfur removal agent 1#

[0024] The formula composition of sulfur removal agent 1#: alcohol amine A methyldiethanolamine is 100kg, alcohol amine B tri...

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Abstract

The invention discloses an organic composite efficient sulfur removal agent for oil-gas field and preparation method and application of the organic composite efficient sulfur removal agent. The sulfur removal agent is characterized in that water serves a solvent and comprises an alcohol amine component A, an alcohol amine component B, a triazine derivative, inhibiter, synergist and low-molecular mass alcohols; the alcohol amine component A refers to methyldiethanolamine, the alcohol amine component B refers to one of triethanolamine and diethanolamine or a mixture of triethanolamine and diethanolamine; triazine derivative refers to hexahydro-1,3,5-tris-s-triazine; the inhibiter refers to seventeen alkenyl amide ethyl imidazoline; the synergist refers to sulfolane; the low-molecular mass alcohols refer to one of ethylene glycol and glycerol or a mixture of ethylene glycol and glycerol. The sulfur removal agent has the advantages of good selectivity on sulfuretted hydrogen, small dosage, quick effect, high sulfur removal efficiency, no corrosion of steel, stable product performance, difficulty in heating decomposition, capability of being biodegradable and the like; sulfide like sulfuretted hydrogen existing in extraction of an oil-gas well can be effectively removed or reduced to safety threshold value range in content, corrosion of sulfide on pipelines and equipment is inhibited, and safety on the equipment and operation personnel is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field chemistry, and in particular relates to an organic composite high-efficiency desulfurizer for oil and gas fields, which is used to remove H present in the production process of oil and gas wells. 2 S and other sulfides, thereby reducing the corrosion of sulfides on oil and gas pipelines and equipment, and ensuring the safety of oil refining and oil and gas extraction personnel. In addition, the present invention also provides the preparation method and application of the sulfur removing agent. Background technique [0002] Sulfur-containing compounds are ubiquitous in oil and gas, mainly hydrogen sulfide (H 2 S), mercaptan (RSH), thioether (RSSR), thiophene sulfur and S, S 2- , SO 4 2- wait. The main sources of these sulfur-containing compounds are: one is the formation, which is brought to the surface with oil and gas exploitation; the other is the reduction of sulfate-reducing bac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/532C10G29/20C10L3/10
CPCC09K8/532C09K2208/20C10G29/20C10G2300/202C10L3/103
Inventor 张蕊玲李莉花张凯
Owner 陕西森瑞石油技术开发有限公司
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