CN202645521U - Gas storage horizontal well injection-production string - Google Patents
Gas storage horizontal well injection-production string Download PDFInfo
- Publication number
- CN202645521U CN202645521U CN 201220302812 CN201220302812U CN202645521U CN 202645521 U CN202645521 U CN 202645521U CN 201220302812 CN201220302812 CN 201220302812 CN 201220302812 U CN201220302812 U CN 201220302812U CN 202645521 U CN202645521 U CN 202645521U
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- Prior art keywords
- short circuit
- injection
- gas storage
- column jacket
- production column
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- Expired - Fee Related
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- 238000003860 storage Methods 0.000 title claims abstract description 38
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 38
- 238000013461 design Methods 0.000 description 8
- 230000003628 erosive effect Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a gas storage storehouse horizontal well notes adopts tubular column, including notes adopt the tubular column body, its characterized in that notes from top to bottom have concatenated in proper order on adopting the tubular column body and have flowed short circuit, subsurface safety valve, down flow short circuit, circulation sliding sleeve, can get formula packer, test and sit short circuit and blanking plug and sit the short circuit. The injection-production tubular column body and the upper flow short circuit, the underground safety valve, the lower flow short circuit, the circulating sliding sleeve, the removable packer, the test seat short circuit and the blanking plug seat short circuit which are arranged on the injection-production tubular column body are all connected by adopting air-tight seal threads. The injection-production pipe column body adopts an L8013Cr type stainless steel pipe. The utility model discloses can improve the air feed ability of gas storage storehouse, have strong, the long service life of corrosion resistance, the advantage of being convenient for maintain.
Description
Technical field
The utility model relates to a kind of injection-production column jacket, relates in particular to a kind of gas storage horizontal well injection-production column jacket, belongs to field of petroleum exploitation.
Background technology
China still is in the construction of storage initial stage at present, domestic construction of storage is to adopt directional well, and existing underground natural gas storage tank injection-production technical tubing string mainly is comprised of antisepsis oil pipe, storm valve, down-hole permanent packer, circulation slide sleeve, expansion pipe, grappling seal assembly, seating nipple and the perforation tubular column instrument of hermetic seal screw thread, this tubing string only is adapted to the directional well of gas storage injection-production well, and instrument is complicated, easily causes the later stage operational difficulty.And the Job Operations program of down-hole permanent packer is many, in case need removing seal for packer, workload is large, and can affect the normal operation of gas storage.Moreover, expansion pipe has the function of free-extension, eliminate the extra subsidiary stress under the tubing string different operating state, improve the stress of tubing string, but by tubing string force analysis and strength check, telescoping tube is tried not down within the stress scope if tubing string is flexible, in order to bring difficulty for follow-up operation.In addition, the selection of flow string is very large to the Influence of production of gas storage injection-production well, and reasonably flow string can be discharged the liquid in shaft bottom and can not caused the erosion injury, thereby guarantees that gas storage normally moves.Existing injection-production technical tubing string design feature and On Comprehensive Technique are not considered the critical generation of taking liquid and erosion to tubing string preferred, in case liquid is contained in gas storage injection-production well shaft bottom, in the normal running of gas storage, can cause the shaft bottom hydrops, perhaps because flow velocity is too high, may make the downhole oil tubing string produce the erosion injury.So all can bring adverse influence to injection-production well.
Because the above-mentioned problems of prior art, the design people is based on being engaged in association area rich experiences and professional knowledge for many years, actual in conjunction with using, positive research and innovation in addition, to overcoming the above-mentioned shortcoming of prior art, a kind of gas supply capacity that can improve gas storage is provided, and corrosion resistance is strong, long service life, the gas storage horizontal well injection-production column jacket being convenient to safeguard.
The utility model content
The purpose of this utility model provides a kind of gas supply capacity that can improve gas storage, and corrosion resistance is strong, long service life, the gas storage horizontal well injection-production column jacket being convenient to safeguard.
For achieving the above object, the utility model proposes a kind of gas storage horizontal well injection-production column jacket, comprise the injection-production column jacket body, on described injection-production column jacket body, be serially connected with successively flow short circuit, storm valve, current downflow short circuit, circulation slide sleeve, retrievable packer from top to bottom, short circuit is located in test and blanking plug is located short circuit.
Aforesaid gas storage horizontal well injection-production column jacket, wherein, the diameter range of described injection-production column jacket body is 73mm~114.3mm.
Aforesaid gas storage horizontal well injection-production column jacket, wherein, described injection-production column jacket body and described mobile short circuit, storm valve, current downflow short circuit, circulation slide sleeve, retrievable packer, test are located short circuit and blanking plug and are located and all adopt hermetic seal to be threaded between the short circuit.
Aforesaid gas storage horizontal well injection-production column jacket, wherein, described injection-production column jacket body adopts L8013Cr type stainless steel tube.
Compared with prior art, the utlity model has following characteristics and advantage:
1, the utility model designs simplification adopts the retrievable packer to be easy to deblocking, and the deblocking workload is little, is convenient to the later stage operation and safeguards, can not affect the normal operation of gas storage.
2, the utility model is considered the impact of storm valve necking down, and the lower end has been equipped with mobile short circuit thereon, and is to prevent the generation of erosion, safe.
3, the utility model has adopted larger-diameter design of string pipe, can avoid under the abnormal conditions erosion and the injection to oil pipe to adopt by force fully, reduce the risk of gas well unloading, when guaranteeing the gas storage gas supply capacity, strengthened as far as possible tubing diameter to satisfy the needs of single well productivity.
4, injection-production column jacket body of the present utility model adopts L8013Cr type stainless steel tube, has stronger corrosion resistance, has prolonged the application life of tubing string.
5, each link of the present utility model all adopts hermetic seal to be threaded, thereby has guaranteed the tightness between each link.
Description of drawings
Accompanying drawing described here only is used for task of explanation, and is not intended to limit by any way the utility model scope of disclosure.In addition, the shape of each parts among the figure and proportional sizes etc. only are schematically, be used for helping understanding of the present utility model, and be not shape and the proportional sizes that specifically limits each parts of the utility model.Those skilled in the art can select various possible shapes and proportional sizes to implement the utility model under instruction of the present utility model as the case may be.
Fig. 1 is the structural representation of the utility model gas storage horizontal well injection-production column jacket;
Fig. 2 is another structural representation of the utility model gas storage horizontal well injection-production column jacket.
Description of reference numerals:
1-injection-production column jacket body; The upper short circuit that flows of 2-; The 3-storm valve; 4-current downflow short circuit; The 5-circulation slide sleeve; 6-retrievable packer; Short circuit is located in the 7-test; The 8-blanking plug is located short circuit.
The specific embodiment
With the description of the utility model specific embodiment, can more be well understood to details of the present utility model by reference to the accompanying drawings.But the specific embodiment of the present utility model described here only is used for explaining the purpose of this utility model, is to restriction of the present utility model and can not be understood as by any way.Under instruction of the present utility model, the technician can conceive based on arbitrarily possible distortion of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Please refer to Fig. 1, Fig. 2, be the structural representation of the utility model gas storage horizontal well injection-production column jacket.As shown in the figure, the gas storage horizontal well injection-production column jacket that the utility model proposes, comprise injection-production column jacket body 1, on injection-production column jacket body 1, be serially connected with successively flow short circuit 2, storm valve 3, current downflow short circuit 4, circulation slide sleeve 5, retrievable packer 6 from top to bottom, short circuit 7 is located in test and blanking plug is located short circuit 8.The i.e. upper short circuit 2 that flows, storm valve 3, current downflow short circuit 4, circulation slide sleeve 5, retrievable packer 6, test is located short circuit 7 and blanking plug and is located short circuit 8 and is serially connected by injection-production column jacket body 1.Compare with existing injection-production technical tubing string, the utility model designs simplification adopts retrievable packer 6 to be easy to deblocking, and the deblocking workload is little, is convenient to the later stage operation, can not affect the normal operation of gas storage.Concrete structure and the operating principle of retrievable packer 6 are prior art, are not described in detail at this.In addition, the utility model is considered the impact of storm valve 3 necking downs, and the lower end has been equipped with mobile short circuit 2,4 thereon, to prevent the generation of erosion.
In the utility model, through the simulative optimization design, the diameter range of injection-production column jacket body 1 is 73mm~114.3mm.Adopted larger oil pipe design in the design of caliber, can avoid under the abnormal conditions erosion and the injection to oil pipe to adopt by force fully, reduce the risk of gas well unloading, when guaranteeing the gas storage gas supply capacity, strengthened as far as possible tubing diameter to satisfy the needs of single well productivity.
In the utility model, described injection-production column jacket body with its on the upper mobile short circuit 2, storm valve 3, current downflow short circuit 4, circulation slide sleeve 5, retrievable packer 6, the test that are connected be located short circuit 7 and blanking plug and be located and all adopt hermetic seal to be threaded between the short circuit 8.For example use the metal sealing threaded engagement of the VAM-top button-type of API standard to connect.Thereby guaranteed the tightness between each link.
Further, injection-production column jacket body 1 adopts L8013Cr type stainless steel tube, has stronger corrosion resistance, has prolonged the application life of tubing string.
In order to prolong the application life of gas storage injection-production well, protective casing is avoided the impact of HTHP, usually is lowered to packer packing oil removal cover annular space, and this packing oil jacket annular space is located in the scope that generally is higher than reservoir top interface 50m-100m.
When using, the utility model gas storage horizontal well injection-production column jacket is lowered in the flow string 10 and fixes, and carries out gas injection and gas production operation.The requirement of working environment when the utility model satisfies the gas storage operation, consider simultaneously high pressure draught under the abnormal conditions of down-hole quick control, annotate the needs that the well stream thing is adopted by force corrosion and the injection of sleeve pipe and oil pipe in the gas production process, considered that also the completion tubular string has long application life, in the gas supply capacity that guarantees gas storage, can improve single well productivity.
Detailed explanation for the respective embodiments described above, its purpose only is the utility model is made an explanation, so that can understand better the utility model, but, it is to restriction of the present utility model that these descriptions can not be construed to any reason, particularly, each feature of describing in different embodiments is mutual any combination also, thereby form other embodiments, except clear and definite opposite description is arranged, these features should be understood to can be applied in any one embodiment, and also not only are confined to described embodiment.
Claims (4)
1. gas storage horizontal well injection-production column jacket, comprise the injection-production column jacket body, it is characterized in that, on described injection-production column jacket body, be serially connected with successively flow short circuit, storm valve, current downflow short circuit, circulation slide sleeve, retrievable packer from top to bottom, short circuit is located in test and blanking plug is located short circuit.
2. gas storage horizontal well injection-production column jacket as claimed in claim 1 is characterized in that, the diameter range of described injection-production column jacket body is 73mm~114.3mm.
3. gas storage horizontal well injection-production column jacket as claimed in claim 1, it is characterized in that, described injection-production column jacket body and described mobile short circuit, storm valve, current downflow short circuit, circulation slide sleeve, retrievable packer, test are located short circuit and blanking plug and are located and all adopt hermetic seal to be threaded between the short circuit.
4. gas storage horizontal well injection-production column jacket as claimed in claim 1 is characterized in that, described injection-production column jacket body adopts L8013Cr type stainless steel tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220302812 CN202645521U (en) | 2012-06-25 | 2012-06-25 | Gas storage horizontal well injection-production string |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220302812 CN202645521U (en) | 2012-06-25 | 2012-06-25 | Gas storage horizontal well injection-production string |
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CN202645521U true CN202645521U (en) | 2013-01-02 |
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CN 201220302812 Expired - Fee Related CN202645521U (en) | 2012-06-25 | 2012-06-25 | Gas storage horizontal well injection-production string |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104895536A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气股份有限公司 | Injection-production gas well variable-diameter well completion method and injection-production string |
CN106401537A (en) * | 2016-11-16 | 2017-02-15 | 中国石油大学(华东) | Well completion pipe string of underground gas storage well and well completion method |
-
2012
- 2012-06-25 CN CN 201220302812 patent/CN202645521U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104895536A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气股份有限公司 | Injection-production gas well variable-diameter well completion method and injection-production string |
CN104895536B (en) * | 2015-05-12 | 2017-10-17 | 中国石油天然气股份有限公司 | Injection-production gas well variable-diameter well completion method and injection-production string |
CN106401537A (en) * | 2016-11-16 | 2017-02-15 | 中国石油大学(华东) | Well completion pipe string of underground gas storage well and well completion method |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210625 |
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CF01 | Termination of patent right due to non-payment of annual fee |