CN202645521U - Horizontal well injecting and extracting pipe column of gas reservoir - Google Patents
Horizontal well injecting and extracting pipe column of gas reservoir 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
- Authority
- CN
- China
- Prior art keywords
- short circuit
- pipe column
- injection
- column jacket
- injecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a horizontal well injecting and extracting pipe column of a gas reservoir. The horizontal well injecting and extracting pipe column comprises an injecting and extracting pipe column body and is characterized in that the injecting and extracting pipe column body is sequentially and serially connected with an upflow short circuit, a downhole safety valve, a downflow short circuit, a circulating sliding bush, a desirable packer, a test stand short circuit and a packer stand short circuit from top to bottom; the injecting and extracting pipe column body is respectively in hermetic seal and threaded connection with the upflow short circuit, the downhole safety valve, the downflow short circuit, the circulating sliding bush, the desirable packer, the test stand short circuit and the packer stand short circuit which are arranged on the injecting and extracting pipe column body; and the injecting and extracting pipe column pipe column body adopts an L8013Cr-type stainless steel tube. The horizontal well injecting and extracting pipe column disclosed by the utility model can be used for improving the gas supply capability of the gas reservoir, and has the advantages of strong corrosion resistance, long service life and convenience in maintenance.
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 | Horizontal well injecting and extracting pipe column of gas reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302812 CN202645521U (en) | 2012-06-25 | 2012-06-25 | Horizontal well injecting and extracting pipe column of gas reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645521U true CN202645521U (en) | 2013-01-02 |
Family
ID=47414643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220302812 Expired - Fee Related CN202645521U (en) | 2012-06-25 | 2012-06-25 | Horizontal well injecting and extracting pipe column of gas reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645521U (en) |
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 | A kind of method and injection-production column jacket for noting gas recovery well reducing completion |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204457524U (en) | A kind of screw drilling tool by-pass valve with interior blowout prevention function | |
| CN204312036U (en) | A kind of differential pressure underground throttle device valve | |
| CN202645521U (en) | Horizontal well injecting and extracting pipe column of gas reservoir | |
| CN202866741U (en) | Expanding open hole packer with hydraulic control lock | |
| CN203452734U (en) | Integrated production and wax removing and prevention pipe column for high-pressure gas well | |
| CN103452496B (en) | Integral type of adopting thick oil thermal extraction note automatically switches and produces joint | |
| CN106014319B (en) | A kind of horizontal subsea tree composite plug device | |
| CN205532455U (en) | Parallel double -barrelled packer of deep water oil well | |
| CN203285383U (en) | Small-diameter double-sealing layering steam injection packer | |
| CN202300318U (en) | Hydraulic control switch tool for driving fracturing well completion controllable valve | |
| CN202628032U (en) | Oil sleeve annulus injection valve | |
| CN204312021U (en) | A kind of washing well hydraulic control annular packer | |
| CN104153740A (en) | Differential pressure type oil sleeve communication valve | |
| CN204729687U (en) | Lift check valve | |
| CN203285391U (en) | Pressure-differential oil jacket communication valve | |
| CN203879448U (en) | Casing protected gas injection packer for CO2 injection well | |
| CN203188965U (en) | Holding clamping position limiting type small-diameter step-by-step deblocking packer | |
| CN202913977U (en) | Casing pipe floating collar | |
| CN205577845U (en) | Float pipe tool that traps from crushing -type | |
| CN205743818U (en) | Wellhead blowout preventer | |
| CN105464615B (en) | Deepwater wells parallel double tube packer | |
| CN203362114U (en) | Down hole differential pressure type openable and closeable circulating valve | |
| CN204703779U (en) | A kind of injection-production column jacket | |
| CN204371206U (en) | Blanking plug | |
| CN203430480U (en) | Blocking ball and seat assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |