CN203452663U - Production string capable of being lifted under pressure - Google Patents
Production string capable of being lifted under pressure Download PDFInfo
- Publication number
- CN203452663U CN203452663U CN201320538183.3U CN201320538183U CN203452663U CN 203452663 U CN203452663 U CN 203452663U CN 201320538183 U CN201320538183 U CN 201320538183U CN 203452663 U CN203452663 U CN 203452663U
- Authority
- CN
- China
- Prior art keywords
- production
- pipe column
- string
- casing
- flow string
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model discloses a can take pressure to press production string down is for reducing the risk of taking the pressure operation, prevent that the reservoir pollution that the kill-job brought from and design. The production casing of the production pipe column is arranged in the surface casing, and the production pipe column is arranged in the production casing. The bottom ends of the production string and the production casing are provided with packers, a protective liquid is arranged between the packers and the production casing, and the inner wall of the production string is provided with a sliding sleeve. A cable or a continuous oil pipe with the bottom end connected with the oil pipe packer is arranged in the production pipe column. When the production pipe column is pulled down, the tubing packer is conveyed to the lower part of the production pipe column by a cable or a continuous oil pipe and is sealed, a pressure channel between a production layer and the production pipe column is isolated, and after the sealing is tested, the production pipe column is pulled down by a snubbing pulling operation machine. The production string can reduce the operation risk of pulling the lower string under pressure, prevent reservoir pollution through no killing well, guarantee later-stage productivity and reduce operation cost.
Description
Technical field
The utility model relates to a kind of flow string that can with pressurely remove, and belongs to the construction of natural gas fields and gas storage and notes and adopt production technical field.
Background technology
In the construction of natural gas fields and gas storage manufacturing process, the method for conventional kill-job, well workover and drilling well removes the flow strings such as row's halogen tubing string or tubing string, or utilizes the snubbing serving machine flow string that removes with pressure.First method operating risk is little, but kill-job labor intensive material resources, pollution and harm reservoir, affect later stage production capacity.Though second method can be avoided above-mentioned technology drawback, operating risk is larger.
Summary of the invention
The purpose of this utility model is to provide a kind of flow string that can with pressurely remove, and to reduce the risk of Operating Pressure, prevents the reservoir pollution that kill-job brings.
Concrete technology contents of the present utility model is as follows:
The production casing of this flow string is located in surface pipe, and flow string is located in production casing.Flow string and production casing bottom are provided with packer 6, and are provided with protection liquid between the two, and flow string inwall is provided with sliding sleeve.In flow string, be provided with cable or coiled tubing that bottom connected tubing packer.
This flow string can reduce the operating risk of with pressure lower tubular column, by not kill-job, prevents reservoir pollution, guarantees later stage production capacity, reduces operating cost.
Accompanying drawing explanation
The flow string setting front schematic diagram of Fig. 1 for can with pressurely removing.
Fig. 2 is the flow string that can with pressurely the remove schematic diagram after setting.
The specific embodiment
Embodiment:
With reference to Fig. 1 and 2, embodiment of the present utility model is further illustrated:
This flow string mainly comprises protection liquid 1, surface pipe 2, production casing 3, flow string 4, sliding sleeve 5, packer 6, crosses tubing packer 7 and cable or coiled tubing 8.
Production casing 3 is located in surface pipe 2, and flow string 4 is located in production casing 3.Flow string 4 and production casing 3 bottoms are provided with packer 6, and are provided with protection liquid 1 between the two, and flow string 4 inwalls are provided with sliding sleeve 5.In flow string 4, be provided with cable or coiled tubing 8 that bottom connected tubing packer 7.
When this flow string removes, the below of mistake tubing packer 7 being delivered to flow string 4 by cable or coiled tubing 8 is also setting, and the pressure channel that isolation payzone and flow string are 4, tests and be honored as a queen, and flow string 4 is removed by snubbing service machine.
Claims (1)
1. the flow string that can with pressurely remove, is characterized in that:
The production casing of this flow string (3) is located in surface pipe (2), and flow string (4) is located in production casing (3); Flow string (4) and production casing (3) bottom are provided with packer (6), and are provided with protection liquid (1) between the two, and flow string (4) inwall is provided with sliding sleeve (5); In flow string (4), be provided with cable or coiled tubing (8) that bottom connected tubing packer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538183.3U CN203452663U (en) | 2013-08-30 | 2013-08-30 | Production string capable of being lifted under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538183.3U CN203452663U (en) | 2013-08-30 | 2013-08-30 | Production string capable of being lifted under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452663U true CN203452663U (en) | 2014-02-26 |
Family
ID=50132548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320538183.3U Expired - Fee Related CN203452663U (en) | 2013-08-30 | 2013-08-30 | Production string capable of being lifted under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943109A (en) * | 2021-01-12 | 2021-06-11 | 中国石油天然气股份有限公司 | Multifunctional integrated pipe column for gas injection, test and operation under pressure and use method |
-
2013
- 2013-08-30 CN CN201320538183.3U patent/CN203452663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943109A (en) * | 2021-01-12 | 2021-06-11 | 中国石油天然气股份有限公司 | Multifunctional integrated pipe column for gas injection, test and operation under pressure and use method |
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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: 20140226 Termination date: 20210830 |