CN202338280U - Central pipe type integral oil discharger - Google Patents
Central pipe type integral oil discharger Download PDFInfo
- Publication number
- CN202338280U CN202338280U CN2011203407100U CN201120340710U CN202338280U CN 202338280 U CN202338280 U CN 202338280U CN 2011203407100 U CN2011203407100 U CN 2011203407100U CN 201120340710 U CN201120340710 U CN 201120340710U CN 202338280 U CN202338280 U CN 202338280U
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- China
- Prior art keywords
- draining
- central pipe
- oil
- central tube
- hole
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a central pipe type integral oil discharger which comprises an oil discharging shell; a central pipe is arranged in the oil discharging shell; and an oil discharging hole is opened at the middle part of the central pipe. The central pipe is vertical to the axial direction of the oil discharging shell and is arranged between the inner walls of the oil discharging shell; the central pipe and the oil discharging shell are in an integrated structure; the oil discharging hole opened at the middle part of the central pipe is a through hole; and outlets at two ends of the through hole extend to the external sides of the oil discharging shell. A punching part where the central pipe is broken easily is arranged on the central pipe. Acting as a downhole tool fitting which is conventionally used, the central pipe type oil discharger has good anti-leakage and anti-corrosion performances. The oil discharger can discharge oil at any time when an oil pipe is pulled out, so that reasons of failures can be found out; operations are performed according to conditions, and blindness of operations is avoided.
Description
Technical field
The utility model relates to bleeder, the whole bleeder of specifically a kind of central tubular.
Background technology
Introduce the bleeder operating principle and the defective of model now commonly used down first, operating principle: when operate as normal, bleeder device upper end is with oil well pump pump barrel thread connection; The lower end is lowered to the oil well certain depth after with the standing valve thread connection, is when solving the deep well pump pump detection and workover, after piston plays flowline; In oil pipe, throw a trip rod from well head; Crude oil in the above oil pipe in draining hole is leaked in the well, reach the purpose of draining, to reduce crude oil loss and the environment pollution in construction.Along with the development of oil recovery worker technology, the bleeder of various models constantly is developed, and its production technology and operation technique require also can both be grasped by each production and use producer preferably.Defective: there is defective in built-in piston type bleeder: when rubber ring uses in the down-hole, because the influence of high temperature and corrosive environment, expand easily and wear out, and then cause seal failure, well liquid is leaked from the draining hole through the sealing ring at the two ends of pinning.There is defective in built-in eccentric type bleeder: draining pin screw thread and housing syndeton are prone to make screw thread corrosion failure to occur when using in the down-hole, cause seal failure, and making also, liquid leaks from screw thread.
The utility model content
The purpose of the utility model is the defective that exists to prior art, provides a kind of central tubular whole bleeder.Bleeder can play the realization draining whenever of flowline, helps the reason that searches problem and occur, is convenient to according to circumstances carry out operation, has avoided the blindness of operation.
The utility model solves the technical scheme that its technical problem adopted: the whole bleeder of a kind of central tubular, and its structure comprises the draining housing, said draining enclosure interior is provided with central tube, offers the draining hole in the middle of this central tube.
Said central tube is perpendicular to draining housing axial direction and place between the draining inner walls, and this central tube and draining housing are integral structure, and the draining hole of offering in the middle of the said central tube is a through hole, and the outlet of through hole two ends is extended and opened to the draining hull outside.
Offer the place of thrusting that is prone to make the central tube disconnection on the said central tube.
The said place of thrusting is opened near near the central tube the draining inner walls, and this place of thrusting is the arc groove structure.
The thrusting of said arc groove formula is in central tube two ends upper and lower surfaces correspondence and is set to everywhere.
The whole bleeder of a kind of central tubular of the utility model is compared with prior art, has following beneficial effect:
1, the downhole tool accessory that uses as routine, the central tubular bleeder has good lost circulation prevention, Corrosion Protection.
2, bleeder can play the realization draining whenever of flowline, helps the reason that searches problem and occur, is convenient to according to circumstances carry out operation, has avoided the blindness of operation.
Description of drawings
Fig. 1 is the structure sectional view of the whole bleeder of a kind of central tubular of the utility model
Fig. 2 is the cross-sectional view of Fig. 1.
Among the figure: 1. draining housing; 2. central tube; 3. draining hole; 4. thrust the place; 5. well liquid passage.
The specific embodiment
Next explanation at length below with reference to Figure of description the whole bleeder of a kind of central tubular of the utility model being done.
The whole bleeder of a kind of central tubular, this bleeder is an impacting type, is used for the flow string draining, maximum outside diameter 90MM.Its structure comprises draining housing 1, and this draining housing places well liquid passage 5 in use, and said draining enclosure interior is provided with central tube 2, offers draining hole 3 in the middle of this central tube.Said central tube is perpendicular to draining housing axial direction and place between the draining inner walls, and this central tube and draining housing are integral structure, and the draining hole of offering in the middle of the said central tube is a through hole, and the outlet of through hole two ends is extended and opened to the draining hull outside.Offer on the said central tube and be prone to make thrusting of central tube disconnection to locate 4.The said place of thrusting is opened near near the central tube the draining inner walls, and this place of thrusting is the arc groove structure.The thrusting of said arc groove formula is in central tube two ends upper and lower surfaces correspondence and is set to everywhere.
During ordinary production, the isolation of the passage at bleeder endoporus and draining center, the seal failure phenomenon of original structure can not appear, stopped the risk of accidental discharge of oil.After central tube was left by throwing, well liquid was leaked by the central tube place, accomplished the draining action.
It is fixed at first roofbolt in the oil pipe and accessory to be risen, in the inspection oil pipe whether unimpeded after, the little technological bar of input ratio bleeder endoporus severs central tube again, can trip out the tubing string of down-hole then from the central tube draining.After bleeder is up to the standards and goes into the well, can't ball or other article input well that at will falls be prevented to prick disconnected impacting pin, guarantee result of use.
This structure of the utility model reusable weak effect in use can't use continuously, and especially the processing technology at the central tube place of severing is handled has certain degree of difficulty.
The central tubular bleeder will carry out the pressure testing test equally, also must detect the degree of screwing of bleeder.In order to eliminate mechanical stress, should carry out Ageing Treatment to the bleeder after the processing.
The above embodiment is a kind of of the more preferably concrete embodiment of the utility model, and common variation that those skilled in the art carries out in the utility model technical scheme scope and replacement all should be included in the protection domain of the utility model.
Claims (3)
1. the whole bleeder of a central tubular, its structure comprises the draining housing, said draining enclosure interior is provided with central tube, offers the draining hole in the middle of this central tube; It is characterized in that: said central tube is perpendicular to draining housing axial direction and place between the draining inner walls; This central tube and draining housing are integral structure; The draining hole of offering in the middle of the said central tube is a through hole, and the outlet extension of through hole two ends is opened to the draining hull outside; Offer the place of thrusting that is prone to make the central tube disconnection on the said central tube.
2. the whole bleeder of a kind of central tubular according to claim 1, it is characterized in that: the said place of thrusting is opened near near the central tube the draining inner walls, and this place of thrusting is the arc groove structure.
3. the whole bleeder of a kind of central tubular according to claim 2 is characterized in that: the thrusting of said arc groove formula is in central tube two ends upper and lower surfaces correspondence and is set to everywhere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203407100U CN202338280U (en) | 2011-09-13 | 2011-09-13 | Central pipe type integral oil discharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203407100U CN202338280U (en) | 2011-09-13 | 2011-09-13 | Central pipe type integral oil discharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338280U true CN202338280U (en) | 2012-07-18 |
Family
ID=46486973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203407100U Expired - Fee Related CN202338280U (en) | 2011-09-13 | 2011-09-13 | Central pipe type integral oil discharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191156A (en) * | 2017-06-26 | 2017-09-22 | 中国石油天然气股份有限公司 | Constant pressure oil drain device |
-
2011
- 2011-09-13 CN CN2011203407100U patent/CN202338280U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191156A (en) * | 2017-06-26 | 2017-09-22 | 中国石油天然气股份有限公司 | Constant pressure oil drain device |
| CN107191156B (en) * | 2017-06-26 | 2019-04-12 | 中国石油天然气股份有限公司 | Constant pressure oil drain device |
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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 |
Granted publication date: 20120718 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |