CN205840853U - Carbon dioxide drive monolayer injection string - Google Patents
Carbon dioxide drive monolayer injection string Download PDFInfo
- Publication number
- CN205840853U CN205840853U CN201620817626.6U CN201620817626U CN205840853U CN 205840853 U CN205840853 U CN 205840853U CN 201620817626 U CN201620817626 U CN 201620817626U CN 205840853 U CN205840853 U CN 205840853U
- Authority
- CN
- China
- Prior art keywords
- packer
- carbon dioxide
- oil pipe
- compensator
- hydraulic anchor
- 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
Abstract
The utility model discloses a kind of carbon dioxide drive monolayer injection string, including sleeve pipe, internal surface of sleeve pipe is provided with hydraulic anchor, hydraulic anchor two ends are connected to compensator and packer, packer connects horn mouth by the oil pipe a being arranged on, oil pipe b it is also associated with, along the outer wall length of oil pipe b and oil pipe a to being also evenly distributed with some corrosion monitoring rings on compensator.This utility model is by using good with the use of, it is ensured that sealing of packer and compensator；Hydraulic anchor and the use of compensator simultaneously, solves when injecting carbon dioxide, the problem such as the removing seal for packer that causes owing to cryogenic high pressure produces oil pipe body deformability or contraction, tubing string inefficacy；Corrosion condition in pipe can be showed by corrosion monitoring ring, and simple in construction has good use value.
Description
Technical field
This utility model belongs to oil extraction in oil field pipe-line equipment technical field, is specifically related to a kind of carbon dioxide drive monolayer note
Enter tubing string.
Background technology
Along with the reduction of each elephant production capacity, various tertiary oil recovery modes are by large-area applications.Tertiary oil recovery mainly comprises
Four big technology series, i.e. chemical flooding, gas drive, heating power drive and drive with microorganism, wherein, and the carbon dioxide drive conduct in gas drive technology
A kind of can reduce greenhouse gas emission and can improve again the tertiary oil recovery mode of oil recovery rate and gradually used.
When using carbon dioxide drive mode to improve recovery ratio in oil field, owing to carbon dioxide is in gas shape when room temperature
State, is not easy to reservoir and transport, and it is generally processed by oil field so that it is be in liquid or above-critical state, titanium dioxide at this moment
Carbon has high pressure and low temperature characteristics, when storing, transport and inject, requires the highest to pressure, the resistance to low temperature of container and pipeline,
Particularly when injecting, that some oil field uses or water alternating gas injection mode, the change of the temperature and pressure of carbon dioxide
Bigger, and the tubing string poor sealing performance of existing use, the poor performance of high pressure resistant low temperature, it is impossible to reach the mesh that safety and stability is injected
's.
Utility model content
The purpose of this utility model is to provide a kind of carbon dioxide drive monolayer injection string, solves at carbon dioxide flooding
When oil injects tubing string, tubing string poor sealing performance, the problem of poor performance of high pressure resistant low temperature.
This utility model carbon dioxide drive monolayer injection string be employed technical scheme comprise that, including sleeve pipe, in sleeve pipe
Wall is provided with hydraulic anchor, and hydraulic anchor two ends are connected to compensator and packer, and packer is by the oil pipe a being arranged on
Connect horn mouth, compensator is also associated with oil pipe b, if along the outer wall length of oil pipe b and oil pipe a to being also evenly distributed with dry corrosion
Monitoring ring.
Of the present utility model it is further characterized in that,
Oil pipe a is identical with oil pipe b, and its external diameter is respectively less than the internal diameter of sleeve pipe.
Packer includes that packing element and slips, packing element and slips lay respectively at the two ends of packer, and slips is located close to loudspeaker
One end of mouth.
The total quantity of corrosion monitoring ring is no less than three.
Compensator uses BC-115 type compensator.
Hydraulic anchor uses SLM type hydraulic anchor.
Packer uses Y221-114 type packer.
The beneficial effects of the utility model are: this utility model carbon dioxide drive monolayer injection string is insulated by employing
Good with the use of, it is ensured that sealing of device and compensator；Hydraulic anchor and the use of compensator simultaneously, solves and is injecting
During carbon dioxide, the removing seal for packer that causes owing to cryogenic high pressure produces oil pipe body deformability or contraction, tubing string inefficacy etc. are asked
Topic；Corrosion condition in pipe can be showed by corrosion monitoring ring, and simple in construction has good use value.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model carbon dioxide drive monolayer injection string.
In figure, 1. oil pipe a, 2. sleeve pipe, 3. compensator, 4. hydraulic anchor, 5. packer, 6. horn mouth, 7. corrosion monitoring ring,
8. packing element, 9. slips, 10. oil pipe b.
Detailed description of the invention
With detailed description of the invention, this utility model is described in detail below in conjunction with the accompanying drawings.
This utility model carbon dioxide drive monolayer injection string, as it is shown in figure 1, include sleeve pipe 2, sleeve pipe 2 inwall is arranged
Having hydraulic anchor 4, hydraulic anchor 4 two ends to be connected to compensator 3 and packer 5, packer 5 is by the oil pipe a1 being arranged on
Connect horn mouth 6, compensator 3 is also associated with oil pipe b10, along the outer wall length of oil pipe b10 and oil pipe a1 to being also evenly distributed with
Some corrosion monitoring rings 7, corrosion monitoring ring 7, by the Corrosion monitoring lacing film arranged, detects corrosion condition.
Oil pipe a1 is identical with oil pipe b10, and its external diameter is respectively less than the internal diameter of sleeve pipe 2, oil pipe a1, oil pipe b10 all with sleeve pipe 2
Form annular space shape.
Packer 5 includes that packing element 8 and slips 9, packing element 8 and slips 9 lay respectively at the two ends of packer 5, and slips 9 is positioned against
One end of nearly horn mouth 6；Packing element 8 stress in the course of the work and expand and sleeve pipe 2 sealed, in packing element 8 one end, i.e. comprise benefit
Inject slow release preservative in repaying the sealing space, one end of device 3, hydraulic anchor 4, carry out the corrosion protection of tubing string.
The total quantity of corrosion monitoring ring 7 is no less than three, lays respectively on oil pipe a1 and oil pipe b10, monitoring tubing string
Corrosion condition.
Compensator 3 uses BC-115 type compensator.
Hydraulic anchor 4 uses SLM type hydraulic anchor, SLM type hydraulic anchor to be rustless steel antiscale formula hydraulic anchor.
Packer 5 uses Y221-114 type packer, and Y221-114 packer is erosion-resisting rustless steel packer.
Work process of the present utility model: this utility model is put into well, after packer 5 completes to set, on packer 5
Slips 9 be stuck in sleeve pipe 2 inwall, the packing element 8 on packer 5 is expanded by active force and is sealed by sleeve pipe 2；Carbon dioxide is noted
During entering, hydraulic anchor 4 by oil pipe b10 intrinsic pressure power effect, the anchor fluke of hydraulic anchor 4 under the effect of fluid pressure to overhanging
Go out, the inwall of clamping sleeve pipe 2, complete grappling action；Carbon dioxide passes through oil pipe b10 and oil pipe a1, sequentially passes through corrosion monitoring
The central passage of ring 7, compensator 3, hydraulic anchor 4, packer 5 and horn mouth 6 is injected in down-hole formation；Due to injected media liquid
State carbon dioxide, temperature is extremely low, and whole tubing string can be produced necessarily by effects such as temperature, self gravitation, tubing string external and internal pressures
Flexible, the problem such as the deblocking of packer 5, tubing string inefficacy can be caused, when tubing string occurs flexible, compensator 3 can do one
Fixed stretching, offsets the stretching produced, and makes sealing keep good, it is ensured that carbon dioxide normally injects.
This utility model is by using good with the use of, it is ensured that sealing of packer 5 and compensator 3；Simultaneously
Hydraulic anchor 4 and the use of compensator 3, solve when injecting carbon dioxide, owing to cryogenic high pressure produces oil pipe body deformability or receipts
The problems such as the packer 5 contracted and cause unseals, tubing string inefficacy；Corrosion condition in pipe can be showed by corrosion monitoring ring 7,
Simple in construction, has good use value.
Claims (7)
1. carbon dioxide drive monolayer injection string, it is characterised in that include that sleeve pipe (2), sleeve pipe (2) inwall are provided with hydraulic anchor
(4), hydraulic anchor (4) two ends are connected to compensator (3) and packer (5), and packer (5) is by the oil pipe a being arranged on
(1) connect horn mouth (6), described compensator (3) is also associated with oil pipe b (10), outside oil pipe b (10) and oil pipe a (1)
Wall length is to being also evenly distributed with some corrosion monitoring rings (7).
Carbon dioxide drive monolayer injection string the most according to claim 1, it is characterised in that described oil pipe a (1) and
Oil pipe b (10) is identical, and its external diameter is respectively less than the internal diameter of sleeve pipe (2).
Carbon dioxide drive monolayer injection string the most according to claim 1, it is characterised in that described packer (5)
The two ends of packer (5), described slips (9) position is laid respectively at including packing element (8) and slips (9), packing element (8) and slips (9)
In the one end near horn mouth (6).
Carbon dioxide drive monolayer injection string the most according to claim 1, it is characterised in that described corrosion monitoring ring
(7) total quantity is no less than three.
Carbon dioxide drive monolayer injection string the most according to claim 1, it is characterised in that described compensator (3)
Use BC-115 type compensator.
Carbon dioxide drive monolayer injection string the most according to claim 1, it is characterised in that described hydraulic anchor (4)
Use SLM type hydraulic anchor.
Carbon dioxide drive monolayer injection string the most according to claim 1, it is characterised in that described packer (5)
Use Y221-114 type packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620817626.6U CN205840853U (en) | 2016-07-29 | 2016-07-29 | Carbon dioxide drive monolayer injection string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620817626.6U CN205840853U (en) | 2016-07-29 | 2016-07-29 | Carbon dioxide drive monolayer injection string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205840853U true CN205840853U (en) | 2016-12-28 |
Family
ID=57641480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620817626.6U Expired - Fee Related CN205840853U (en) | 2016-07-29 | 2016-07-29 | Carbon dioxide drive monolayer injection string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205840853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263256A (en) * | 2022-07-19 | 2022-11-01 | 中国石油大学(华东) | Injection device for petroleum exploitation in oil shale |
-
2016
- 2016-07-29 CN CN201620817626.6U patent/CN205840853U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263256A (en) * | 2022-07-19 | 2022-11-01 | 中国石油大学(华东) | Injection device for petroleum exploitation in oil shale |
| CN115263256B (en) * | 2022-07-19 | 2023-12-01 | 长江大学 | Injection device that oil exploitation was used in oil shale |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20180729 |