CN103557431B - Single-cylinder type gas storage well - Google Patents
Single-cylinder type gas storage well Download PDFInfo
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- CN103557431B CN103557431B CN201310585322.2A CN201310585322A CN103557431B CN 103557431 B CN103557431 B CN 103557431B CN 201310585322 A CN201310585322 A CN 201310585322A CN 103557431 B CN103557431 B CN 103557431B
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- pit shaft
- gas storage
- storage well
- cylinder type
- type gas
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Abstract
The invention discloses a kind of single-cylinder type gas storage well, comprise pit shaft, described pit shaft is overall single pit shaft, and end, described pit shaft upper and lower two ends seals respectively and is provided with upper cover and lower seal head; Or described pit shaft upper end end part seal is provided with upper cover, pit shaft lower end integrally closed.Pit shaft of the present invention adopts overall single pit shaft to form, except upper and lower two ends, whole pit shaft connects without technique, for overall structure, decrease the operation that assembling pit shaft sections becomes pit shaft, also make pit shaft quality more reliable while simplifying operation, the potential safety hazard of pit shaft after coming into operation avoiding many pit shafts to connect and compose.
Description
Technical field
The present invention relates to a kind of gas storage well, particularly a kind of single-cylinder type gas storage well.
Background technique
Petroleum gas gas storage well is usually by wellhead assembly, and shaft bottom end socket and pit shaft form.According to national oil Gas Industry standard, during current gas storage well is built, normally adopt the pit shaft that external diameter is less, because mineshaft diameter is little, cause the length of pit shaft longer, be inconvenient to manufacture and transport, produce some pit shaft sections so normally segmented in factory, then pit shaft sections is transported to gas storage well job site, is fit into again in deep-well after assembling at the construction field (site).And when assembling at the construction field (site), need to build assembling place at the construction field (site), and due to the restriction of construction site condition, the assembly precision of pit shaft is difficult to ensure, so be also difficult to the assembly precision ensureing pit shaft while increasing difficulty of construction, of poor quality, constructed after coming into operation and may leak air, potential safety hazard is large; In addition because pit shaft is longer, too increase the degree of depth of drilling well, add difficulty of construction and construction cost.
Summary of the invention
The object of the invention is to for existing gas storage well above shortcomings, provide one to facilitate pit shaft installation, quality good, reduce wellbore construction cost, save the gas storage well of duration.
To achieve these goals, the technical solution used in the present invention is:
A kind of single-cylinder type gas storage well, comprises pit shaft, and described pit shaft is overall single pit shaft, and end, described pit shaft upper and lower two ends seals respectively and is provided with upper cover and lower seal head; Or described pit shaft upper end end part seal is provided with upper cover, pit shaft lower end integrally closed.Described pit shaft adopts overall single pit shaft to form, and except upper and lower two ends, whole pit shaft connects without technique, is overall structure, decreases the operation that assembling pit shaft sections becomes pit shaft, also makes pit shaft quality more reliable while simplifying operation.
Preferably, described upper cover and lower seal head are threaded with the end, upper end of described pit shaft and lower end respectively; Or described upper cover is connected with the upper end end thread of described pit shaft, the lower end hot melt of pit shaft closes up and pit shaft integrally closed.Upper cover and lower seal head are threaded with pit shaft, avoid at upper cover and between lower seal head with pit shaft, use the mode of welding to be connected, and then the problem avoided owing to adopting welding manner pit shaft will carry out stress relief tempering process increase cost, decrease operation when pit shaft makes and cost, pit shaft quality is also better.
Preferably, described pit shaft lower end is also provided with interior end socket, and the outer rim of described interior end socket matches with described shaft in wall or closes.By arranging interior end socket in pit shaft lower end, the outer rim of interior end socket matches with the inwall of pit shaft, plays the effect of seal shaft lower end, improves the seal of pit shaft lower end.
Preferably, the outer rim of described interior end socket is provided with annular groove, in described annular groove, is provided with seal ring.Further improve the seal of pit shaft lower end.
Preferably, the described interior end socket lower end part of stretching out described pit shaft lower end convexes to form seam along the radially outward of described pit shaft, and described seam is covered in described pit shaft lower end.Seam covers in the lower end of pit shaft, prevents interior end socket from entering into pit shaft inside completely, reduces pit shaft gas-storing capacity.
Preferably, packing ring with matching is provided with between described pit shaft lower end and described seam.Between pit shaft lower end and seam, arrange packing ring, prevent excessive wear between interior end socket and pit shaft and reduce obturation effect, when lower seal head rotates, due to the existence of interior end socket, packing ring does not rotate with outside head, further improves obturation effect.
Preferably, the bottom of described lower seal head inwall radially-inwardly convexes to form annular boss along described pit shaft, and described annular boss sidewall matches with the sidewall of described seam.Matched with ring-type seam sidewall by annular boss sidewall, further firm interior end socket, improves sealing effect.
Preferably, described pit shaft lower end outer wall is provided with ring-type breach, in described annular boss upwards extends and to be coated on by described ring-type breach, the sidewall of described ring-type breach matches with the sidewall of described annular boss.。Matched with the annular boss in lower seal head by the ring-type breach of pit shaft lower end, improve the steadiness of lower seal head, when preventing from installing gas storage well, lower seal head is stressed excessive and skew occurs damage lower seal head and the part that is threaded between pit shaft.
Preferably, the external diameter of described single pit shaft is greater than 273.1mm.Adopt the pit shaft compared with Large Diameter Pipeline, exceed pit shaft maximum diameter 273.1mm in existing NBS, meeting can the large requirement of gas-storing capacity, when gas-storing capacity is certain, the shorten length of pit shaft, and then make it possible to make in factory assemble whole gas storage well after be transported to building site again and install, also assembly yard need be set in building site while ensureing assembly quality, and because pit shaft length is short, so also shorten drilling depth, further save cost and duration.
compared with prior art, the invention has the beneficial effects as follows:
Pit shaft of the present invention adopts overall single pit shaft to form, and decreases the operation that assembling pit shaft sections becomes pit shaft, also makes pit shaft quality more reliable, the potential safety hazard of pit shaft after coming into operation avoiding many pit shafts to connect and compose while simplifying operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of A in Fig. 1;
Fig. 3 is the structural representation of interior end socket,
Mark in figure: 1-pit shaft, 2-upper cover, 3-lower seal head, end socket in 4-, 5-annular groove, 6-seal ring, 7-seam, 8-packing ring, 9-annular boss, 10-ring-type breach.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
As Figure 1-3, a kind of single-cylinder type gas storage well of the present invention, comprises pit shaft 1, and described pit shaft 1 is overall single pit shaft, and end, described pit shaft about 1 two ends seals respectively and is provided with upper cover 2 and lower seal head 3 in one embodiment of the invention.Described pit shaft 1 upper end end part seal is provided with upper cover 2 in another embodiment, pit shaft 1 lower end integrally closed, described upper cover 2 is connected with the upper end end thread of described pit shaft 1, and the lower end hot melt of pit shaft 1 closes up and pit shaft integrally closed (not shown).Described pit shaft 1 adopts overall single pit shaft to form, and except upper and lower two ends, whole pit shaft connects without technique, is overall structure, decreases the operation that assembling pit shaft sections becomes pit shaft, also makes pit shaft quality more reliable while simplifying operation.The potential safety hazard of pit shaft after coming into operation avoiding many pit shafts to connect and compose.
Described upper cover 2 and lower seal head 3 are threaded with the end, upper end of described pit shaft 1 and lower end respectively in another embodiment.Upper cover 2 and lower seal head 3 are threaded with pit shaft 1, avoid at upper cover 2 and between lower seal head 3 with pit shaft 1, use the mode of welding to be connected, and then avoid owing to adopting welding manner pit shaft will carry out stress tempering process problem, decrease operation when pit shaft makes and cost, pit shaft quality is also better.Described pit shaft 1 lower end is also provided with interior end socket 4, and the outer rim of described interior end socket 4 matches with described pit shaft 1 inwall or closes.By arranging interior end socket 4 in pit shaft 1 lower end, the outer rim of interior end socket 4 matches with the inwall of pit shaft 1, plays the effect of seal shaft 1 lower end, improves the seal of pit shaft 1 lower end.The outer rim of described interior end socket 4 is provided with annular groove 5, in described annular groove 5, is provided with seal ring 6.Further improve the seal of pit shaft 1 lower end.The described interior end socket 4 lower end part of stretching out described pit shaft 1 lower end convexes to form seam 7 along the radially outward of described pit shaft 1, and described seam 7 is covered in described pit shaft 1 lower end.Seam 7 covers in the lower end of pit shaft 1, prevents interior end socket 4 from entering into pit shaft 1 completely inner, reduces pit shaft 1 gas-storing capacity.Packing ring 8 with matching is provided with between described pit shaft 1 lower end and described seam 7.Between pit shaft 1 lower end and seam, arrange packing ring 8, prevent excessive wear between interior end socket 4 and pit shaft 1 and reduce obturation effect, when lower seal head 3 rotates, due to the existence of interior end socket 4, packing ring 8 does not rotate with outside head 3, further improves obturation effect.The bottom of described lower seal head 3 inwall radially-inwardly convexes to form annular boss 9 along described pit shaft 1, and described annular boss 9 sidewall matches with the sidewall of described seam 7.Matched with ring-type seam 7 sidewall by annular boss 9 sidewall, further firm interior end socket 4, improves sealing effect.Described pit shaft 1 lower end outer wall is provided with ring-type breach 10, and in described annular boss 9 upwards extends and to be coated on by described ring-type breach 10, the sidewall of described ring-type breach 10 matches with the sidewall of described annular boss 9.Matched with the annular boss 9 in lower seal head 3 by the ring-type breach 10 of pit shaft 1 lower end, improve the steadiness of lower seal head 3, when preventing from installing gas storage well, lower seal head 3 is stressed excessive and skew occurs damage lower seal head 3 and the part that is threaded between pit shaft 1.The external diameter of described single pit shaft 1 is greater than 273.1mm.In different embodiment's examples, the external diameter of pit shaft 11 is specifically as follows 300mm, 400mm, 500mm, 600mm, 700mm, 800mm, 900mm, 1000mm or 1100mm etc.Adopt the pit shaft 1 compared with Large Diameter Pipeline, exceed pit shaft 1 maximum diameter 273.1mm in existing NBS, meeting can the large requirement of gas-storing capacity, when gas-storing capacity is certain, the shorten length of pit shaft 1, and then make it possible to make in factory assemble whole gas storage well after be transported to building site again and install, also assembly yard need be set in building site while ensureing assembly quality, and because pit shaft 1 length is short, so also shorten drilling depth, further save cost and duration.
By reference to the accompanying drawings the specific embodiment of the present invention is described in detail above, but the present invention is not restricted to above-mentioned mode of execution, in the spirit and scope situation of claim not departing from the application, those skilled in the art can make various amendment or remodeling.
Claims (5)
1. a single-cylinder type gas storage well, comprises pit shaft, it is characterized in that, described pit shaft is overall single pit shaft, end, described pit shaft upper and lower two ends seals respectively and is provided with upper cover and lower seal head, described upper cover and lower seal head are threaded with the end, upper end of described pit shaft and lower end respectively, described pit shaft lower end is also provided with interior end socket, the outer rim of described interior end socket matches with described shaft in wall or closes, the outer rim of described interior end socket is provided with annular groove, seal ring is provided with in described annular groove, the described interior end socket lower end part of stretching out described pit shaft lower end convexes to form seam along the radially outward of described pit shaft, described seam is covered in described pit shaft lower end.
2. single-cylinder type gas storage well according to claim 1, is characterized in that, is provided with packing ring with matching between described pit shaft lower end and described seam.
3. single-cylinder type gas storage well according to claim 1, is characterized in that, the bottom of described lower seal head inwall radially-inwardly convexes to form annular boss along described pit shaft, and described annular boss sidewall matches with the sidewall of described seam.
4. single-cylinder type gas storage well according to claim 3, it is characterized in that, described pit shaft lower end outer wall is provided with ring-type breach, and in described annular boss upwards extends and to be coated on by described ring-type breach, the sidewall of described ring-type breach matches with the sidewall of described annular boss.
5. the single-cylinder type gas storage well according to any one of Claims 1-4, is characterized in that, the external diameter of described single pit shaft is greater than 273.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310585322.2A CN103557431B (en) | 2013-11-19 | 2013-11-19 | Single-cylinder type gas storage well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310585322.2A CN103557431B (en) | 2013-11-19 | 2013-11-19 | Single-cylinder type gas storage well |
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| Publication Number | Publication Date |
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| CN103557431A CN103557431A (en) | 2014-02-05 |
| CN103557431B true CN103557431B (en) | 2016-03-30 |
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| CN201310585322.2A Active CN103557431B (en) | 2013-11-19 | 2013-11-19 | Single-cylinder type gas storage well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591451A (en) * | 2013-11-19 | 2014-02-19 | 四川川油天然气科技发展有限公司 | Large-diameter gas storage well |
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| CN200940767Y (en) * | 2006-06-23 | 2007-08-29 | 哈尔滨航空工业(集团)有限公司 | Composite material cylinder mouth structure of liquefied petroleum gas |
| CN201032050Y (en) * | 2007-04-17 | 2008-03-05 | 曾建军 | Low-temperature liquefied petroleum gas underground gas storage well |
| CN102192323A (en) * | 2010-03-10 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Clamped liner-boss connection |
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| CN203560716U (en) * | 2013-11-19 | 2014-04-23 | 四川川油天然气科技发展有限公司 | Single-shaft type gas storage well |
Family Cites Families (5)
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| ATE130421T1 (en) * | 1992-01-10 | 1995-12-15 | Technical Products Group Inc | POLE PIECE FOR A FIBER WOUND PRESSURE VESSEL. |
| CZ298770B6 (en) * | 2002-02-15 | 2008-01-23 | Thin-walled liner for high-pressure cylinders | |
| NO20073034A (en) * | 2007-06-14 | 2008-09-22 | Compressed Energy Tech As | End boss and a composite pressure tank |
| CN202834718U (en) * | 2012-07-23 | 2013-03-27 | 中油通用鲁西天然气装备有限公司 | Large-capacity steel seamless gas cylinder |
| CN202812775U (en) * | 2012-09-10 | 2013-03-20 | 盛泽能源技术有限公司 | Large-diameter seamless bottle type underground high-pressure gas storage well |
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2013
- 2013-11-19 CN CN201310585322.2A patent/CN103557431B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940767Y (en) * | 2006-06-23 | 2007-08-29 | 哈尔滨航空工业(集团)有限公司 | Composite material cylinder mouth structure of liquefied petroleum gas |
| CN201032050Y (en) * | 2007-04-17 | 2008-03-05 | 曾建军 | Low-temperature liquefied petroleum gas underground gas storage well |
| CN102803819A (en) * | 2009-06-10 | 2012-11-28 | 西屋电气有限责任公司 | Domed diaphragm/insert plate for a pressure vessel access closure |
| CN102192323A (en) * | 2010-03-10 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Clamped liner-boss connection |
| CN203560716U (en) * | 2013-11-19 | 2014-04-23 | 四川川油天然气科技发展有限公司 | Single-shaft type gas storage well |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103591451A (en) * | 2013-11-19 | 2014-02-19 | 四川川油天然气科技发展有限公司 | Large-diameter gas storage well |
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| CN103557431A (en) | 2014-02-05 |
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Address after: No. 8 in Sichuan Province, Zigong City Industrial Park Road Itakura Ryugo Patentee after: SICHUAN OIL NATURAL GAS TECHNOLOGY CO., LTD. Address before: No. 8 in Sichuan Province, Zigong City Industrial Park Road Itakura Ryugo Patentee before: Sichuan Oil and Natural Gas Scientific Development Co., Ltd. |