CN203175474U - Filling device for oil extraction and well completion - Google Patents
Filling device for oil extraction and well completion Download PDFInfo
- Publication number
- CN203175474U CN203175474U CN 201320170405 CN201320170405U CN203175474U CN 203175474 U CN203175474 U CN 203175474U CN 201320170405 CN201320170405 CN 201320170405 CN 201320170405 U CN201320170405 U CN 201320170405U CN 203175474 U CN203175474 U CN 203175474U
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- CN
- China
- Prior art keywords
- sleeve pipe
- filling device
- well completion
- oil
- outer tube
- 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
The utility model discloses a filling device for oil extraction and well completion. The filling device comprises an internal sleeve pipe and an external sleeve pipe. The cross section of the external sleeve pipe is of a convex-shaped structure, the internal sleeve pipe is fixedly connected in the middle part in the external sleeve pipe through a fixed block, and the lower end of the internal sleeve pipe is sealed and blocked by a screening plate; and the upper end of the external sleeve pipe is provided with external threads. Compared with the prior art, the filling device has the beneficial effects that the filling device is mainly used in complex well completion projects of oil, gas and water wells, so that various purposes of under-well sectional well completion and oil extraction are realized, remarkable function is provided for improving the well fixing and well completion quality of oil, gas and water wells, the operation of the device is simple and convenient, the performance is reliable, the adaptability is strong, and the filling device is an important well completion tool.
Description
Technical field
The utility model relates to a kind of packing element, is specifically related to a kind of device for filling for the oil recovery completion.
Background technology
Along with constantly carrying out of oil field development, domestic each elephant all enters the exploitation middle and later periods, horizontal well development is that a comprehensive input cost is low, profitable novel oilfield development approach, be specially adapted to the exploitation of old liberated area, oil field remaining oil, because water content is big in the oil well of exploitation, need fill gravel to it, to guarantee the normal exploitation of oil well.At present, the tool device of filling gravel to oil well haves much room for improvement.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of device for filling for the oil recovery completion is provided.
Its technical scheme is: comprise inner sleeve and outer tube.Described outer tube cross section is the convex character shape structure, and inner sleeve is fixedly connected on middle part in the outer tube by fixed block, and the lower end of inner sleeve is by the sieve plate shutoff; The upper end of described outer tube is provided with external screw thread.
Wherein, described fixed block is made as at least 3, and what it was asymmetric, inhomogeneous is connected between inner sleeve and the outer tube.
The utility model compared with prior art, the beneficial effect that has is: be mainly used in complicated oil, gas, the well completion engineering, to realize down-hole segmentation completion and the exploitation of various purposes, the well cementation completion quality of improving oil, gas, well there is remarkable effect, this device is easy and simple to handle, dependable performance, compliance are strong, is a kind of important completion tool.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
With reference to Fig. 1, a kind of device for filling for the oil recovery completion comprises inner sleeve 1 and outer tube 2.Described outer tube 2 cross sections are the convex character shape structure, and inner sleeve 1 is fixedly connected on middle part in the outer tube 2 by fixed block 3, and the lower end of inner sleeve 1 is by sieve plate 4 shutoff; The upper end of described outer tube 2 is provided with external screw thread 5.Wherein, described fixed block 3 is made as at least 3, and what it was asymmetric, inhomogeneous is connected between inner sleeve 1 and the outer tube 2.
During use, gravel by the space between inner sleeve 1 and the outer tube 2, is lowered into the precalculated position, down-hole and gets final product, this tool operation is easy, dependable performance, compliance are strong, is a kind of important completion tool.
Claims (2)
1. a device for filling that is used for the oil recovery completion comprises inner sleeve and outer tube, and it is characterized in that: described outer tube cross section is the convex character shape structure, and inner sleeve is fixedly connected on middle part in the outer tube by fixed block, and the lower end of inner sleeve is by the sieve plate shutoff; The upper end of described outer tube is provided with external screw thread.
2. the device for filling for the oil recovery completion according to claim 1, it is characterized in that: described fixed block is made as at least 3, and what it was asymmetric, inhomogeneous is connected between inner sleeve and the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170405 CN203175474U (en) | 2013-04-08 | 2013-04-08 | Filling device for oil extraction and well completion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170405 CN203175474U (en) | 2013-04-08 | 2013-04-08 | Filling device for oil extraction and well completion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175474U true CN203175474U (en) | 2013-09-04 |
Family
ID=49072189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320170405 Expired - Fee Related CN203175474U (en) | 2013-04-08 | 2013-04-08 | Filling device for oil extraction and well completion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439478A (en) * | 2019-07-18 | 2019-11-12 | 中国石油天然气集团有限公司 | Inner layer sleeve is the pipe in pipe casing being threadedly coupled and its assembly method |
-
2013
- 2013-04-08 CN CN 201320170405 patent/CN203175474U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439478A (en) * | 2019-07-18 | 2019-11-12 | 中国石油天然气集团有限公司 | Inner layer sleeve is the pipe in pipe casing being threadedly coupled and its assembly method |
| CN110439478B (en) * | 2019-07-18 | 2022-03-29 | 中国石油天然气集团有限公司 | Double-layer combined sleeve structure with inner-layer sleeve in threaded connection and assembling method thereof |
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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: 20130904 Termination date: 20140408 |