CN202743844U - Gas storage well for compressed natural gas - Google Patents
Gas storage well for compressed natural gas Download PDFInfo
- Publication number
- CN202743844U CN202743844U CN 201220285937 CN201220285937U CN202743844U CN 202743844 U CN202743844 U CN 202743844U CN 201220285937 CN201220285937 CN 201220285937 CN 201220285937 U CN201220285937 U CN 201220285937U CN 202743844 U CN202743844 U CN 202743844U
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- Prior art keywords
- layer sleeve
- inner layer
- gas
- outer layer
- layer casing
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- Expired - Fee Related
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Abstract
The utility model provides a gas storage well for compressed natural gas. The gas storage well for the compressed natural gas comprises a gas bottle, an inner layer casing and an outer layer casing, wherein the upper part of the gas bottle is connected with an inlet valve through a pipeline; a pressure gage and a safety valve are arranged between the inlet valve and the gas bottle; the bottom part of the gas bottle is connected with a blow-off line; the other end of the blow-off line is provided with a blow-off line valve; the gas bottle is arranged in the inner layer casing; the outer side of the inner layer casing is provided with the outer layer casing and oil well cement in sequence; a drying line is arranged between the inner layer casing and the gas bottle; the other end of the drying line is provided with a drying line valve; and the inner layer casing and the outer layer casing are fixed together through casing joints. The gas storage well for the compressed natural gas has the beneficial effects that the structure is simple; the impact resistance is improved through the double casings, and therefore, cracks are prevented from being generated, and the intrusion of underground water is reduced. Meanwhile, the inner layer casing can be entirely lifted out, so that the lines can be conveniently maintained halfway.
Description
Technical field
The utility model belongs to the compression natural gas field, especially relates to a kind of compressed natural gas storage well.
Background technology
Compression natural gas is the high pressure flammable explosive gas about 25Mpa, and its storage safe is the significant problem that the whole society pays close attention to always, for addressing this problem, from the gaholder to the storage tank, develops into the gas storage well technology.Country has also issued the high pressure underground gas well standard, and the gas storage well according to this Specification Design is built comprises in the gas storage well that exists in the prior art, still has major safety risks not solve.The one, the degree of depth out of reach requirement that cementing slurry reaches; The 2nd, even accomplished the well cementation of full well section, under reverse stress effect repeatedly, the differences in expansion of sleeve pipe and cement causes the crack unavoidably, and wellbore casing will face earthing water and seriously invade and harass; The 3rd, in a single day wellbore casing enters well, just can't detect effectively midway, if subterranean pipe line is revealed, usually can only do and scrap processing, and other opens new well.
Summary of the invention
Problem to be solved in the utility model provides a kind of compressed natural gas storage well, especially a kind of Double pipe underground natural fuels gas storage well has improved the impact resistance of sleeve pipe, has reduced the invasion of earthing water, inner layer sleeve can integral body carry away simultaneously, is convenient to pipeline be overhauled midway.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of compressed natural gas storage well, comprise gas cylinder, inner layer sleeve, outer layer sleeve, the top of described gas cylinder connects an air inlet valve by pipeline, between described air inlet valve and gas cylinder, be provided with compression indicator and safety valve, the bottom of described gas cylinder is connected with blowoff line, the other end of blowoff line is provided with the blowoff line valve, gas cylinder places inner layer sleeve, the outside at inner layer sleeve is provided with outer layer sleeve and oil well cement successively, be provided with a drying pipeline between described inner layer sleeve and the gas cylinder, the other end of drying pipeline is provided with the drying pipeline valve, and described inner layer sleeve and outer layer sleeve are fixed together by casing collar.
Further, be provided with an outer layer sleeve end socket bottom the described outer layer sleeve.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, so that the utlity model has simple in structure, bilayer sleeve has improved impact resistance, avoided the generation in crack, reduced the invasion of earthing water, inner layer sleeve can integral body carry away simultaneously, is convenient to midway to advantages such as pipeline overhaul.
Description of drawings
Fig. 1 is structural representation of the present utility model
Among the figure:
1, gas cylinder 2, inner layer sleeve 3, outer layer sleeve
4, oil well cement 5, blowoff line 6, blowoff line valve
7, drying pipeline 8, drying pipeline valve 9, casing collar
10, air inlet valve 11, compression indicator 12, safety valve
13, outer layer sleeve end socket
The specific embodiment
As shown in Figure 1, the utility model comprises gas cylinder 1, inner layer sleeve 2, outer layer sleeve 3, the top of described gas cylinder 1 connects an air inlet valve 10 by pipeline, between described air inlet valve 10 and gas cylinder 1, be provided with compression indicator 11 and safety valve 12, the bottom of described gas cylinder 1 is connected with blowoff line 5, the other end of blowoff line 5 is provided with blowoff line valve 6, gas cylinder 1 places inner layer sleeve 2, be provided with successively outer layer sleeve 3 and oil well cement 4 in the outside of inner layer sleeve 2, be provided with a drying pipeline 7 between described inner layer sleeve 2 and the gas cylinder 1, the other end of drying pipeline 7 is provided with drying pipeline valve 8, described inner layer sleeve 2 is fixed together by casing collar 9 with outer layer sleeve 3, and described outer layer sleeve 3 bottoms are provided with an outer layer sleeve end socket 13.
The working process of this example: during installation, get out at first over the ground well, in outer layer sleeve 3 lower going-into-wells, subsequently by outer layer sleeve end socket 13 outside pressure injection oil well cement slurries, the oil well cement slurries along the outer wall of outer layer sleeve 3 from lower to upper until after returning out ground, cement in the cleaning outer layer sleeve 3, descend again inner layer sleeve 2, inner layer sleeve 2 be with gas cylinder 1 and all management connect finish after, integral body enters outer layer sleeve 3, by casing collar 9 fixing inside and outside layer sleeve pipe, last mounting shaft mouthpiece etc.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (2)
1. compressed natural gas storage well, it is characterized in that: comprise gas cylinder, inner layer sleeve, outer layer sleeve, the top of described gas cylinder connects an air inlet valve by pipeline, between described air inlet valve and gas cylinder, be provided with compression indicator and safety valve, the bottom of described gas cylinder is connected with blowoff line, the other end of blowoff line is provided with the blowoff line valve, gas cylinder places inner layer sleeve, the outside at inner layer sleeve is provided with outer layer sleeve and oil well cement successively, be provided with a drying pipeline between described inner layer sleeve and the gas cylinder, the other end of drying pipeline is provided with the drying pipeline valve, and described inner layer sleeve and outer layer sleeve are fixed together by casing collar.
2. a kind of compressed natural gas storage well according to claim 1 is characterized in that: be provided with an outer layer sleeve end socket bottom the described outer layer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285937 CN202743844U (en) | 2012-06-18 | 2012-06-18 | Gas storage well for compressed natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285937 CN202743844U (en) | 2012-06-18 | 2012-06-18 | Gas storage well for compressed natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202743844U true CN202743844U (en) | 2013-02-20 |
Family
ID=47703278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220285937 Expired - Fee Related CN202743844U (en) | 2012-06-18 | 2012-06-18 | Gas storage well for compressed natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202743844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701044A (en) * | 2021-08-31 | 2021-11-26 | 江苏省特种设备安全监督检验研究院 | Manufacturing method of nested gas storage well |
-
2012
- 2012-06-18 CN CN 201220285937 patent/CN202743844U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701044A (en) * | 2021-08-31 | 2021-11-26 | 江苏省特种设备安全监督检验研究院 | Manufacturing method of nested gas storage well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300270, Tianjin Binhai New Area (Dagang) Century Avenue, No. two, building 216, room 86 Patentee after: Tianjin Yuehao Fuel Gas Co., Ltd. Address before: 300270 building two, building 88, 216 Century Avenue, Dagang, Binhai New Area, Tianjin Patentee before: Tianjin Yuehao Fuel Gas Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130618 |