CN203066943U - Sand blocking screen tube - Google Patents
Sand blocking screen tube Download PDFInfo
- Publication number
- CN203066943U CN203066943U CN 201220733587 CN201220733587U CN203066943U CN 203066943 U CN203066943 U CN 203066943U CN 201220733587 CN201220733587 CN 201220733587 CN 201220733587 U CN201220733587 U CN 201220733587U CN 203066943 U CN203066943 U CN 203066943U
- Authority
- CN
- China
- Prior art keywords
- screen pipe
- pipe
- tube
- drum
- sand blocking
- 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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- Revetment (AREA)
Abstract
A sand blocking screen tube comprises a base pipe, an upper blocking ring, an outer screen pipe, a sand blocking drum, an inner screen pipe and a lower blocking ring. An inner screen hole is formed in the base pipe, an outer screen hole is arranged in the outer screen pipe, the sand blocking drum with gaps is sleeved on the inner screen pipe, the inner wall and the outer wall of the sand blocking drum and the inner screen pipe which are integrally sleeved are manufactured to be of a gear shape in a pressing mode, and then the sand blocking drum and the inner screen pipe are sleeved outside the base pipe. The outer screen pipe is sleeved outside the sand blocking drum, the upper blocking ring wraps the upper end face of the outer screen pipe, the upper end face of the sand blocking drum and the upper end face of the inner screen pipe, and the lower blocking ring wraps the lower end face of the outer screen pipe, the lower end face of the sand blocking drum and the lower end face of the inner screen pipe. The upper blocking ring is fixedly arranged on the upper portion of the base pipe, and the lower blocking ring is fixedly arranged on the lower portion of the base pipe. A communicating hole is formed in the inner screen pipe, and the inner wall of the inner screen pipe is of the gear shape, and the communicating capacity of the inner wall of the inner screen pipe and the inner screen pipe is increased. Liquid flow resistance is small, the energy which is consumed by the fact that well liquid enters in an oil pipe from a well drum is small, and well yield can be improved under the condition that a sand blocking effect is not influenced, and obvious economical benefits are achieved.
Description
Technical field
The utility model be oil field pit shaft sand control use instrument, be a kind of sand block screen casing.
Background technology
Existing sand block screen casing is generally by parent tube; composite filter; the protection outer tube is formed; the protection outer tube sleeve is contained in outside the parent tube; parent tube; be composite filter between the protection outer tube; parent tube is provided with flowing hole; composite filter is over against flowing hole; liquid stream enters in the parent tube from the sieve aperture that composite filter inwardly flows on parent tube; the inwall of the composite filter of this sand block screen casing is close to parent tube; outer wall is close to the protection outer tube, and parent tube; the sieve aperture of protection on the outer tube is limited, causes outside the protection outer tube with the area of passage of the communication passage of parent tube limited; influencing liquid stream passes through; the liquid very big drag losses of out-of-date generation that circulates consumes stratum energy, reduces oil well output.
Summary of the invention
The purpose of this utility model provides a kind of sand block screen casing that makes, and increases the flow channels of liquid stream, reduces drag losses, improves oil well output.
The purpose of this utility model is achieved in that and comprises parent tube, upper baffle ring, outer screen pipe, the sand block tube, interior screen casing, lower baffle ring, interior sieve aperture is set on the parent tube, outer sieve aperture is set on the outer screen pipe, there is the sand block jacket casing of hole to be contained on the interior screen casing, then with suit all-in-one-piece sand block tube, the inside and outside wall of interior screen casing is pressed into gear-like, again it is sleeved on outside the parent tube, outer screen pipe is sleeved on outside the sand block tube, upper baffle ring encases outer screen pipe, the sand block tube, the upper surface of interior screen casing, lower baffle ring encases outer screen pipe, the sand block tube, the lower surface of interior screen casing, upper baffle ring is fixed on the top of parent tube, and lower baffle ring is fixed on the bottom of parent tube, on the interior screen casing linked hole is set.
The beneficial effects of the utility model are: the inwall of interior screen casing is gear-like, the connectivity of itself and interior screen casing is increased, and liquid flowing resistance is little, and it is little that well liquid enters the energy that consumes in the oil pipe from pit shaft, under the situation that does not influence the sand block effect, can improve oil well output, have remarkable economic efficiency.
Description of drawings
Accompanying drawing 1 is the topology view of the utility model embodiment.
Accompanying drawing 2 is outline drawings of part 5 in the accompanying drawing 1.
Accompanying drawing 3 is vertical views of part 5 in the accompanying drawing 1.
Accompanying drawing 4 is the shape figure after part 4 in the accompanying drawing 1,5 suits are integral.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
By accompanying drawing as can be seen, embodiment of the present utility model comprises parent tube 1, upper baffle ring 2, outer screen pipe 3, sand block tube 4, interior screen casing 5, lower baffle ring 9, sieve 8 in arranging on the parent tube 1, outer sieve aperture 6 is set on the outer screen pipe 3, there is the sand block tube 4 of hole to be sleeved on the interior screen casing 5, then with suit all-in-one-piece sand block tube 4, the inside and outside wall of interior screen casing 5 is pressed into gear-like, it is sleeved on outside the parent tube 1 again, outer screen pipe 3 is sleeved on outside the sand block tube 4, upper baffle ring 2 encases outer screen pipe 3, sand block tube 4, the upper surface of interior screen casing 5, lower baffle ring 9 encases outer screen pipe 3, sand block tube 4, the lower surface of interior screen casing 5, upper baffle ring 2 is fixed on the top of parent tube 1, lower baffle ring 9 is fixed on the bottom of parent tube 1, on the interior screen casing 5 linked hole 7 is set.
After the inside and outside wall of suit all-in-one-piece sand block tube 4, interior screen casing 5 is pressed into gear-like, make on the outer wall of its sand block tube 4 groove is arranged, and form bigger flow channels between the inwall of outer screen pipe 3, groove is also arranged on the inwall of interior screen casing 5, also can form bigger flow channels between interior screen casing 5 and the parent tube 1, the resistance that it is out-of-date that liquid circulates is little, and it is little that well liquid enters the energy that consumes in the oil pipe from pit shaft, can improve oil well output under the situation that does not influence the sand block effect.
Claims (1)
1. sand block screen casing, comprise parent tube (1), upper baffle ring (2), outer screen pipe (3), sand block tube (4), interior screen casing (5), lower baffle ring (9), interior sieve aperture (8) is set on the parent tube (1), outer sieve aperture (6) is set on the outer screen pipe (3), it is characterized in that: have the sand block tube (4) of hole to be sleeved on the interior screen casing (5), then with suit all-in-one-piece sand block tube (4), the inside and outside wall of interior screen casing (5) is pressed into gear-like, again it is sleeved on outside the parent tube (1), outer screen pipe (3) is sleeved on outside the sand block tube (4), upper baffle ring (2) encases outer screen pipe (3), sand block tube (4), the upper surface of interior screen casing (5), lower baffle ring (9) encases outer screen pipe (3), sand block tube (4), the lower surface of interior screen casing (5), upper baffle ring (2) is fixed on the top of parent tube (1), lower baffle ring (9) is fixed on the bottom of parent tube (1), and linked hole (7) is set on the interior screen casing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733587 CN203066943U (en) | 2012-12-19 | 2012-12-19 | Sand blocking screen tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733587 CN203066943U (en) | 2012-12-19 | 2012-12-19 | Sand blocking screen tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066943U true CN203066943U (en) | 2013-07-17 |
Family
ID=48765753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220733587 Expired - Fee Related CN203066943U (en) | 2012-12-19 | 2012-12-19 | Sand blocking screen tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016061707A1 (en) * | 2014-10-20 | 2016-04-28 | 中国石油大学(华东) | Movable combined sand prevention pipe of axial and radial slotted pipe |
-
2012
- 2012-12-19 CN CN 201220733587 patent/CN203066943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016061707A1 (en) * | 2014-10-20 | 2016-04-28 | 中国石油大学(华东) | Movable combined sand prevention pipe of axial and radial slotted pipe |
| RU2616952C1 (en) * | 2014-10-20 | 2017-04-18 | Чайна Юниверсити Оф Петролиум (Ист Чайна) | Movable composite pipe for sand control comprising filters with axial and radial slits |
| US9970270B2 (en) | 2014-10-20 | 2018-05-15 | China University Of Petroleum (East China) | Movable combined sand control pipe of axial and radial slotted screen pipes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ma Bing Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |