CN202788708U - Repairing device for sleeve of oil well - Google Patents
Repairing device for sleeve of oil well Download PDFInfo
- Publication number
- CN202788708U CN202788708U CN 201220485700 CN201220485700U CN202788708U CN 202788708 U CN202788708 U CN 202788708U CN 201220485700 CN201220485700 CN 201220485700 CN 201220485700 U CN201220485700 U CN 201220485700U CN 202788708 U CN202788708 U CN 202788708U
- Authority
- CN
- China
- Prior art keywords
- oil well
- sleeve
- oil
- well casing
- repairing device
- 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
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Abstract
A repairing device for a sleeve of an oil well is composed of an oil tube (1), a hydraulic anchor (2), an upper packer (3), a sleeve cement-squeezing flow controller (4), a lower packer (5) and a one-way valve (6). The repairing device for the sleeve of the oil well is characterized in that the oil tube (1), the hydraulic anchor (2), the upper packer (3), the sleeve cement-squeezing flow controller (4), the lower packer (5) and the one-way valve (6) are connected in sequence, so cement can be conveniently squeezed in the sleeve of the oil well of an escaped segment by the repairing device for the sleeve of the oil well, and reparation to the damaged sleeve of the oil well can be facilitated.
Description
Affiliated technical field
The utility model relates to a kind of oil well casing repair apparatus on the oilfield, this device has this device to have oil pipe [1], hydraulic anchor [2], upper packer [3], sleeve pipe squeeze method restriction choke [4], lower packet [5], ball-and-seat [6] to form, use this device easily to the oil well casing squeeze method of leakage section, to be convenient to damaged oil well casing is taked repairing measures.
Background technology
At present, known technology is not have oil well casing squeeze method device, its major defect to be that the casing damage in the oil well is not easy to repair, and causes heavy losses often for Petroleum Production unit in the casing salvaging process of oil well.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of oil well casing repair apparatus, uses this device can search easily oil well casing and where misses, and is convenient to take corresponding casing salvaging measure.
The technical scheme that its technical problem that solves the utility model adopts is: adopt a kind of oil well casing repair apparatus, this device has oil pipe [1], hydraulic anchor [2], upper packer [3], sleeve pipe squeeze method restriction choke [4], lower packet [5], ball-and-seat [6] forms, it is characterized in that: oil pipe [1], hydraulic anchor [2], upper packer [3], sleeve pipe squeeze method restriction choke [4], lower packet [5], ball-and-seat [6] is linked in sequence, the effect of oil pipe [1] is to carry the liquid that pumps in the well, the effect of hydraulic anchor [2] is fixedly oil pipe and packer, stop upper packer [3] and lower packet [5] that length travel occurs, the effect of upper packer [3] and lower packet [5] is the annular space that envelope is cut oil pipe and sleeve pipe, between two packers, form seal section, the effect of ball-and-seat [6] is only to allow the liquid in the sleeve pipe to enter tubing string, do not allow the liquid in the oil pipe to enter sleeve pipe, use this device easily to the oil well casing squeeze method of leakage section, to be convenient to damaged oil well casing is taked repairing measures.
The beneficial effects of the utility model: by field trial, the utility model compared with prior art uses this device easily to the oil well casing squeeze method of leakage section, to be convenient to damaged oil well casing is taked repairing measures.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
(accompanying drawing) is the schematic diagram of a kind of structure embodiment of oil well casing repair apparatus.
Among the figure: 1. oil pipe; 2. hydraulic anchor; 3. upper packer; 4. sleeve pipe squeeze method restriction choke; 5. lower packet; 6. ball-and-seat; 7. artificial bottom of a well; 8, oil well casing.
The specific embodiment
In the accompanying drawings, adopt a kind of oil well casing repair apparatus, this device has oil pipe [1], hydraulic anchor [2], upper packer [3], sleeve pipe squeeze method restriction choke [4], lower packet [5], ball-and-seat [6] forms, it is characterized in that: oil pipe [1], hydraulic anchor [2], upper packer [3], sleeve pipe squeeze method restriction choke [4], lower packet [5], ball-and-seat [6] is linked in sequence, the effect of oil pipe [1] is to carry the liquid that pumps in the well, the effect of hydraulic anchor [2] is fixedly oil pipe and packer, stop upper packer [3] and lower packet [5] that length travel occurs, the effect of upper packer [3] and lower packet [5] is the annular space that envelope is cut oil pipe and sleeve pipe, between two packers, form seal section, the effect of ball-and-seat [6] is only to allow the liquid in the sleeve pipe to enter tubing string, do not allow the liquid in the oil pipe to enter sleeve pipe, use this device easily to the oil well casing squeeze method of leakage section, to be convenient to damaged oil well casing is taked repairing measures.
Claims (1)
1. oil well casing repair apparatus, this device has oil pipe [1], hydraulic anchor [2], upper packer [3], sleeve pipe squeeze method restriction choke [4], lower packet [5], ball-and-seat [6] to form, and it is characterized in that: oil pipe [1], hydraulic anchor [2], upper packer [3], sleeve pipe squeeze method restriction choke [4], lower packet [5], ball-and-seat [6] are linked in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220485700 CN202788708U (en) | 2012-09-22 | 2012-09-22 | Repairing device for sleeve of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220485700 CN202788708U (en) | 2012-09-22 | 2012-09-22 | Repairing device for sleeve of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788708U true CN202788708U (en) | 2013-03-13 |
Family
ID=47815984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220485700 Expired - Fee Related CN202788708U (en) | 2012-09-22 | 2012-09-22 | Repairing device for sleeve of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368638A (en) * | 2015-07-23 | 2017-02-01 | 中国石油天然气股份有限公司 | Sleeve damaged position blocking tool and blocking method |
-
2012
- 2012-09-22 CN CN 201220485700 patent/CN202788708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368638A (en) * | 2015-07-23 | 2017-02-01 | 中国石油天然气股份有限公司 | Sleeve damaged position blocking tool and blocking method |
| CN106368638B (en) * | 2015-07-23 | 2019-04-09 | 中国石油天然气股份有限公司 | Casing damage capping tools and method for blocking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130922 |