CN204703779U - Injection-production tubular column - Google Patents
Injection-production tubular column Download PDFInfo
- Publication number
- CN204703779U CN204703779U CN201520301153.XU CN201520301153U CN204703779U CN 204703779 U CN204703779 U CN 204703779U CN 201520301153 U CN201520301153 U CN 201520301153U CN 204703779 U CN204703779 U CN 204703779U
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- Prior art keywords
- injection
- pipe
- column jacket
- production column
- oil pipe
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 52
- 210000002445 nipple Anatomy 0.000 claims abstract description 33
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 230000000903 blocking effect Effects 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 15
- 239000007924 injection Substances 0.000 abstract description 15
- 238000003860 storage Methods 0.000 abstract description 15
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides an injection and production string, this injection and production string include from the top down flow nipple joint (21), subsurface safety valve (22), flow nipple joint (21), circulation sliding sleeve (23), can get formula packer (24), block up and sit nipple joint (25), test and sit nipple joint (27) and horn mouth (28) that connect gradually through oil pipe, and horn mouth (28) are the cylindric, are equipped with interior chamfer in the lower extreme of horn mouth (28). The injection-production string can improve the gas supply capacity of the gas storage, and has the advantages of strong corrosion resistance, long service life and convenience in maintenance.
Description
Technical field
The utility model relates to oil field gas storage note gas recovery well completion technique field, particularly a kind of injection-production column jacket used in this note gas recovery well.
Background technology
During non-exhausted type oil-gas reservoir gas storage reconstruction, often divide two stages: the first stage is that gas drive is recovered the oil the stage, in order to realize the stable exploitation of gas drive oil recovery, its gas drive initial stage gas injection rate is lower, durations is longer, for reducing cost of investment, generally first design adopts small size sleeve pipe, and the gas injection productive completion tubing string of supporting reduced size ensures gas injection; Second stage is the gas storage stage, and for meeting the demand of emergency peak regulation, general design adopts large scale sleeve pipe, and supporting large-size note gas production productive completion tubing string ensures note gas production, and this method for designing mainly exists the shortcoming of following several respects:
If 1 gas drive is recovered the oil, the stage directly uses large scale oil pipe and sleeve pipe, once drop into higher, and very long gas drive process has made original gas injection oil pipe be damaged, and also needs replacing tubing string, cause waste equally when turning later stage gas storage exploitation.
If 2 gas drives are recovered the oil, the stage uses large scale sleeve pipe, coupling small size oil pipe, then there will be little oil pipe and support the use the design of large packer, the stressed problem such as moving distortion when can increase tubing string gas injection, small size packer and corresponding gas injection tubing string must be used, then should use small size sleeve pipe.
If 3 gas drives are recovered the oil, stage small casing is once in lower going-into-well, then cannot change, when the later stage transfers gas storage well to, proration of single well amount certainly will will significantly adjust upward, original gas injection oil pipe can not meet joins product demand, then need again to dig a well, and changes large scale sleeve pipe.
In addition original small casing gas injection well needs shut-in well, namely adds potential safety hazard, also causes waste.
Utility model content
Design a kind of injection-production column jacket being suitable for using in the gas storage stage to solve, the utility model provides a kind of injection-production column jacket, and this injection-production column jacket can improve the gas supply capacity of gas storage, has that corrosion resistance is strong, long service life, is convenient to the advantage safeguarded.
The utility model solves the technical scheme that its technical problem adopts: a kind of injection-production column jacket, comprise connected successively from the top down by oil pipe flowing pipe nipple, storm valve, flowing pipe nipple, circulation slide sleeve, pipe nipple is located in retrievable packer, blocking, pipe nipple and horn mouth are located in test, horn mouth is tubular, is provided with interior chamfering in bell-mouthed lower end.
Blocking is located pipe nipple and test and is located pipe nipple and is connected by punching oil pipe, and the sidewall of the oil pipe that punches is provided with multiple through hole.
The internal diameter of described oil pipe is 100.5mm.
The external diameter of described oil pipe is 114.3mm.
Storm valve is connected with liquid controling pipe line.
The beneficial effects of the utility model are,
1, structure is simple, and adopt retrievable packer to be easy to deblocking, deblocking workload is little, is convenient to later stage operation and safeguards, can not affect the normal operation of gas storage.
2, this second injection-production column jacket considers the impact of storm valve necking down, and lower end is equipped with flowing short circuit thereon, and to prevent the generation of erosion, safety is high.
3, this second injection-production column jacket have employed larger-diameter design of string pipe, can avoid completely adopting by force the erosion of oil pipe and injection under abnormal conditions, reduce the risk of gas well unloading, while guarantee gas storage gas supply capacity, strengthen tubing diameter as far as possible to meet the needs of single well productivity.
4, the injection-production column jacket body of this second injection-production column jacket adopts L8013Cr type stainless steel tube, has stronger corrosion resistance, extends the application life of tubing string.
5, each link of this second injection-production column jacket all adopts hermetic seal to be threaded, thus ensure that the tightness between each link.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the schematic diagram entering the first injection-production column jacket under the gas drive oil recovery stage is in sleeve pipe.
Fig. 2 is the schematic diagram entering the second injection-production column jacket under the gas storage stage is in sleeve pipe.
Fig. 3 is bell-mouthed structural representation in the first injection-production column jacket and the second injection-production column jacket.
Wherein sleeve pipe, 2. setting of casing, 3. oil reservoirs on 1.;
11. circulation slide sleeves, 12. retrievable packer, pipe nipple is located in 13. blockings, and 14. tests are located pipe nipple, 15. horn mouths.
21. flowing pipe nipples, 22. storm valves, 23. circulation slide sleeves, 24. retrievable packer, pipe nipple is located in 25. blockings, and 26. punching oil pipes, 27. tests are located pipe nipple, 28. horn mouths.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Note a method for gas recovery well reducing completion, comprise the following steps:
Step one, install be used for the sleeve pipe of completion in well, this sleeve pipe comprises the upper sleeve pipe 1 and setting of casing 2 that connect successively from the top down, and the external diameter of upper sleeve pipe 1 is greater than the external diameter of setting of casing 2, the area of passage that the area of passage in upper sleeve pipe 1 is greater than in setting of casing 2;
Step 2, gas drive recover the oil the stage in this sleeve pipe under enter the first thinner injection-production column jacket, as shown in Figure 1;
Step 3, the gas storage stage first from take out in this sleeve pipe this first injection-production column jacket again in this sleeve pipe enter the second thicker injection-production column jacket, the external diameter of the oil pipe used in this second injection-production column jacket is greater than the external diameter of the oil pipe used in this first injection-production column jacket, area of passage in this second oil pipe used in this second injection-production column jacket is greater than the area of passage in the first oil pipe of using in this first injection-production column jacket, as shown in Figure 2.
The external diameter of upper sleeve pipe 1 is greater than the external diameter of setting of casing 2, the area of passage that area of passage in upper sleeve pipe 1 is greater than in setting of casing 2, no longer change after the upper sleeve pipe 1 of different-diameter and setting of casing enter for 2 times, like this can under the sleeve do not changed of again not digging a well, namely the demand of low injection allocation amount in early stage is looked after, also can note in the later stage demand that the gas production stage completes high injection allocation amount, improve the application life of note gas recovery well, take into account oil reservoir gas drive demand in the demand of gas storage reconstruction, reduce the potential safety hazard of later stage shut-in well, prevent waste, effectively reduce and build Kucheng originally.
The drilling well also comprised before step one, to oil reservoirs 3, adopts reservoir specially to beat technology in the process of this drilling well, and this reservoir specially technology of beating is that prior art is introduced no longer in detail.
In the present embodiment, upper sleeve pipe 1 is arranged in 50m (namely Fig. 1 A is 50m) above well head to the top circle of oil reservoirs 3, and setting of casing 2 is positioned at the below of sleeve pipe 1, namely setting of casing 2 be positioned at these oil reservoirs 3 and this oil reservoirs 3 top circle above below 50m.The external diameter of upper sleeve pipe 1 is for being more than or equal to 177.8mm, and the wall thickness of upper sleeve pipe 1 is 9mm ~ 10mm, and the external diameter of setting of casing 2 is for being less than 177.8mm, and the wall thickness of setting of casing 2 is 7mm ~ 9mm.Bottom cap rock, leave the setting of casing 2 of certain length minor diameter, be convenient to the demand of gas drive stage workover treatment in early stage.
Step 2 be gas drive recover the oil initial stage in stage in this sleeve pipe under enter the first injection-production column jacket, this first injection-production column jacket comprise connected successively from the top down by this first oil pipe circulation slide sleeve 11, retrievable packer 12, blocking be located pipe nipple 13, test be located pipe nipple 14 and horn mouth 15, retrievable packer 12 sets the top in setting of casing 2, as shown in Figure 1.The external diameter of the oil pipe used in this first injection-production column jacket is 88.9mm, and the wall thickness of this first oil pipe used in this first injection-production column jacket is 6mm ~ 8mm.
This second injection-production column jacket comprises flowing pipe nipple 21, the storm valve 22 connected successively from the top down by this second oil pipe, the pipe nipple 21 that flows, circulation slide sleeve 23, retrievable packer 24, pipe nipple 25 is located in blocking, pipe nipple 27 and horn mouth 28 are located in test, retrievable packer 24 sets the bottom in upper sleeve pipe 2, as shown in Figure 2, the external diameter 114.3mm of this second oil pipe used in this second injection-production column jacket, the wall thickness of this second oil pipe used in this second injection-production column jacket is 6mm ~ 13mm.As shown in Figure 3, there is chamfering this horn mouth 28 inside to the structure of horn mouth 28, can reduce gas injection erosion, if when entering below oil pipe section under testing tool, facilitate bailing simultaneously.
The utility model is claimed is above-mentioned second injection-production column jacket; namely injection-production column jacket described in the utility model comprises flowing pipe nipple 21, the storm valve 22 connected successively from the top down by oil pipe, the pipe nipple 21 that flows, circulation slide sleeve 23, retrievable packer 24, pipe nipple 25 is located in blocking, pipe nipple 27 and horn mouth 28 are located in test; wherein horn mouth 28 is tubular, is provided with interior chamfering in the lower end of horn mouth 28.Blocking is located pipe nipple 25 and test and is located pipe nipple 27 and is connected by punching oil pipe 26, and the sidewall of punching oil pipe 26 is provided with multiple through hole.In this second injection-production column jacket, described oil pipe (i.e. above-mentioned second oil pipe) adopts L8013Cr 114.3mm type stainless steel tube, and the internal diameter of described oil pipe (i.e. above-mentioned second oil pipe) is 100.5mm.The external diameter of described oil pipe is 114.3mm.Storm valve 22 is connected with liquid controling pipe line.
This second injection-production column jacket (i.e. the claimed injection-production column jacket of the utility model) is containing following advantage:
1, structure is simple, and adopt retrievable packer to be easy to deblocking, deblocking workload is little, is convenient to later stage operation and safeguards, can not affect the normal operation of gas storage.
2, this second injection-production column jacket considers the impact of storm valve necking down, and lower end is equipped with flowing short circuit thereon, and to prevent the generation of erosion, safety is high.
3, this second injection-production column jacket have employed larger-diameter design of string pipe, can avoid completely adopting by force the erosion of oil pipe and injection under abnormal conditions, reduce the risk of gas well unloading, while guarantee gas storage gas supply capacity, strengthen tubing diameter as far as possible to meet the needs of single well productivity.
4, the injection-production column jacket body of this second injection-production column jacket adopts L8013Cr type stainless steel tube, has stronger corrosion resistance, extends the application life of tubing string.
5, each link of this second injection-production column jacket all adopts hermetic seal to be threaded, thus ensure that the tightness between each link.
The above; be only specific embodiment of the utility model, the scope of utility model enforcement can not be limited with it, so the displacement of its equivalent assemblies; or the equivalent variations to do according to the utility model scope of patent protection and modification, all still should belong to the category that this patent is contained.In addition, the technical characteristic in the utility model and all can using by independent assortment between technical characteristic, between technical characteristic and technical scheme, between technical scheme and technical scheme.
Claims (5)
1. an injection-production column jacket, it is characterized in that, this injection-production column jacket comprises flowing pipe nipple (21), the storm valve (22) connected successively from the top down by oil pipe, the pipe nipple (21) that flows, circulation slide sleeve (23), retrievable packer (24), pipe nipple (25) is located in blocking, pipe nipple (27) and horn mouth (28) are located in test, horn mouth (28) is tubular, is provided with interior chamfering in the lower end of horn mouth (28).
2. injection-production column jacket according to claim 1, it is characterized in that, blocking is located pipe nipple (25) and test and is located pipe nipple (27) and is connected by punching oil pipe (26), and the sidewall of the oil pipe (26) that punches is provided with multiple through hole.
3. injection-production column jacket according to claim 1, is characterized in that, the internal diameter of described oil pipe is 100.5mm.
4. injection-production column jacket according to claim 1, is characterized in that, the external diameter of described oil pipe is 114.3mm.
5. injection-production column jacket according to claim 1, is characterized in that, storm valve (22) is connected with liquid controling pipe line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301153.XU CN204703779U (en) | 2015-05-12 | 2015-05-12 | Injection-production tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301153.XU CN204703779U (en) | 2015-05-12 | 2015-05-12 | Injection-production tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703779U true CN204703779U (en) | 2015-10-14 |
Family
ID=54283404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520301153.XU Expired - Fee Related CN204703779U (en) | 2015-05-12 | 2015-05-12 | Injection-production tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434882A (en) * | 2019-01-11 | 2020-07-21 | 中国石油天然气股份有限公司 | Method for establishing one-way drainage gas production channel on oil pipe |
-
2015
- 2015-05-12 CN CN201520301153.XU patent/CN204703779U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434882A (en) * | 2019-01-11 | 2020-07-21 | 中国石油天然气股份有限公司 | Method for establishing one-way drainage gas production channel on oil pipe |
| CN111434882B (en) * | 2019-01-11 | 2022-05-06 | 中国石油天然气股份有限公司 | Method for establishing one-way drainage gas production channel on oil pipe |
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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: 20151014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |