Method for manufacturing underground gas storage device for storing special gas

A special gas and manufacturing method technology, applied in storage devices, transportation and packaging, metal material coating process, etc., can solve problems such as limiting the wide application of underground gas storage wells, and achieve clean passivation effects, applicability and stability. sexual effect

Active Publication Date: 2015-05-13
自贡华气科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current underground gas storage well device is only used to store

Method used

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  • Method for manufacturing underground gas storage device for storing special gas

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Embodiment 1

[0092] A method for manufacturing an underground gas storage well device for storing special gas, comprising the following steps:

[0093] S1. Material selection: ensure that the material composition of the low-alloy structural steel components of the underground gas storage well device meets the following requirements:

[0094] The content of the following elements is calculated by weight percentage: C: 0.28%, Si: 0.17%, Mn: 0.40%, Cr: 0.80%, Ni: 0.25%, Mo: 0.15%, Cu: 0.25%, P: 0.020 %, S: 0.010%;

[0095] By selecting materials according to the above requirements, the present invention can be applied to the high-pressure special gas environment, ensuring the stability and reliability of the device structure when the underground gas storage well device is used to store the special gas.

[0096] S2. Degrease and passivate the low-alloy structural steel components of the underground gas storage well device: the low-alloy structural steel components are rinsed with water, degreas...

Embodiment 2

[0130] A method for manufacturing an underground gas storage well device for storing special gas, comprising the following steps:

[0131] S1. Material selection: ensure that the material composition of the low-alloy structural steel components of the underground gas storage well device meets the following requirements:

[0132] The content of the following elements is calculated by weight percentage: C: 0.33%, Si: 0.35%, Mn: 0.90%, Cr: 1.10%, Ni: 0.20%, Mo: 0.25%, Cu: 0.20%, P: 0.010% , S: 0.005%;

[0133] By selecting materials according to the above requirements, the present invention can be applied to the high-pressure special gas environment, ensuring the stability and reliability of the device structure when the underground gas storage well device is used to store the special gas.

[0134] S2. Degrease and passivate the low-alloy structural steel components of the underground gas storage well device: the low-alloy structural steel components are rinsed with water, degre...

Embodiment 3

[0168] A method for manufacturing an underground gas storage well device for storing special gas, comprising the following steps:

[0169] S1. Material selection: ensure that the material composition of the low-alloy structural steel components of the underground gas storage well device meets the following requirements:

[0170] The content of the following elements is calculated by weight percentage: C: 0.30%, Si: 0.25%, Mn: 0.70%, Cr: 0.90%, Ni: 0.18%, Mo: 0.20%, Cu: 0.21%, P: 0.015% , S: 0.008%;

[0171] By selecting materials according to the above requirements, the present invention can be applied to the high-pressure special gas environment, ensuring the stability and reliability of the device structure when the underground gas storage well device is used to store the special gas.

[0172] S2. Degrease and passivate the low-alloy structural steel components of the underground gas storage well device: the low-alloy structural steel components are rinsed with water, degre...

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Abstract

The invention discloses a method for manufacturing an underground gas storage device for storing special gas. The method includes the following steps that S1, materials are selected, and it is guaranteed that material components of a low-alloy structure steel assembly of the underground gas storage device meet the requirement; S2, degreasing and passivating are conducted on the underground gas storage device; S3, examination and acceptance inspection are conducted; S4, the low-alloy structure steel assembly of the underground gas storage device is assembled, a pipe opening is sealed, the sealed pipe is placed downwards into an uncased hole well, well cementation is conducted, and a well opening device is mounted. The method has the advantages that special gas such as hydrogen, oxygen, helium or industrial exhaust gas are stored through an underground gas storage well, a prepared acid cleaning agent, a degreasing agent, passivator and a circulating degreasing agent are adopted, the cleaning and passivation effects of the underground gas storage device are guaranteed, and the applicability and stability of the device for storing the special gas are guaranteed.

Description

technical field [0001] The invention relates to the field of underground gas storage devices, in particular to a method for manufacturing an underground gas storage well device for storing special gases. Background technique [0002] With the development of social economy and science and technology, the application fields of pressure vessels are constantly expanding. Underground gas storage wells are the product of the development of pressure vessels underground and the combination of pressure vessels, pressure pipelines and oil and gas wells. Vertical tubular pressure-bearing equipment is mainly used in CNG stations, L-CNG stations, storage and distribution peak-shaving stations, and stores high-pressure natural gas underground in the form of wellbore. This method of storing high-pressure natural gas in a wellbore gas storage well has the characteristics of high safety, small footprint, and simple daily maintenance. However, the current underground gas storage well device ...

Claims

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Application Information

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IPC IPC(8): B65G5/00C22C38/44C22C38/22C23G1/19C23G1/08C23G1/06C23C22/08
CPCC23C22/73Y02E60/32
Inventor 王健
Owner 自贡华气科技股份有限公司
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