CN2756824Y - Deviation water distribution device - Google Patents
Deviation water distribution device Download PDFInfo
- Publication number
- CN2756824Y CN2756824Y CN 200420063954 CN200420063954U CN2756824Y CN 2756824 Y CN2756824 Y CN 2756824Y CN 200420063954 CN200420063954 CN 200420063954 CN 200420063954 U CN200420063954 U CN 200420063954U CN 2756824 Y CN2756824 Y CN 2756824Y
- Authority
- CN
- China
- Prior art keywords
- eccentric
- seating nipple
- hole
- housing
- model
- 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 relates to an eccentric water distributor which mainly solves the problems that if the existing water distributor is used, a packer is easy to clamp and plug, and the connection firmness is poor. The utility model is characterized in that an inclined hole (5) communicated with a central hole (4) is arranged on the hole wall between an eccentric hole (3) of a working barrel (1) and the central hole (4) of the working barrel (1), and the working barrel (1) is fixed in a housing (2) through screw nails (6). The eccentric water distributor has the advantages that not only is the connecting firmness is favorable, but also a packer is not easy to clamp and plug.
Description
Technical field:
The utility model relates to used downhole tool, especially eccentric injection mandrel in the oil recovery field, oil field.
Background technology:
The oil field enters secondary phase of oil production, usually recover the oil with the method for water filling, injection well downhole flow regulator is a kind of instrument commonly used in oil recovery process, and present employed eccentric injection mandrel is after blanking plug is pulled out, often there is sand to enter in the eccentric orfice with current, thereby be deposited in the bottom of eccentric orfice, when blanking plug was put in the eccentric body once more, the sand that is deposited in the eccentric orfice bottom just stopped up blanking plug easily, cause water injection rate not reach the index of requirement, influence the oil recovery effect.Be connected with housing by screw thread because of seating nipple simultaneously, this connected mode fastness is poor, easily makes seating nipple and housing loosening, influences the water filling quality, increases cost of production.
The utility model content:
In order to overcome result in blockage the easily deficiency of the stifled and connectivity robustness difference of device card of existing injection well downhole flow regulator, the utility model provides a kind of eccentric injection mandrel, and this eccentric injection mandrel not only connectivity robustness is good, and blanking plug to be difficult for card stifled.
The technical solution of the utility model is: this eccentric injection mandrel comprises seating nipple and housing, has an inclined hole that communicates with centre bore on the hole wall between the centre bore of the eccentric orfice of seating nipple and seating nipple; Seating nipple by screw in housing.
The beneficial effect that the utlity model has is: this eccentric injection mandrel is owing to adopted such scheme, when using this eccentric injection mandrel, make the sand setting that is deposited in the eccentric orfice bottom to enter centre bore and to fall into the shaft bottom through inclined hole, do not have the phenomenon that sand setting is piled up in the eccentric orfice, blanking plug can not influence water injection rate because of the obstruction of sand setting yet; Adopt screw connection seating nipple and housing to strengthen the fastness that is connected, avoided loosening phenomenon to produce, prolonged the application life of injection well downhole flow regulator, reduced cost of production, what help producing carries out smoothly.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model.
1-seating nipple among the figure, 2-housing, 3-eccentric orfice, 4-centre bore, 5-inclined hole, 6-screw.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, this eccentric injection mandrel comprises seating nipple 1 and housing 2, has an inclined hole 5 that communicates with centre bore 4 on the hole wall between the centre bore 4 of the eccentric orfice 3 of seating nipple 1 and seating nipple 1; Seating nipple 1 is fixed in the housing 2 by screw 6.
Owing to use this blowout preventer when the cycle operation of down-hole, have the good characteristics of connectivity robustness; Can not have the phenomenon that sand setting is piled up in the eccentric orfice 3 so that being deposited in the sand setting of eccentric orfice bottom can enter centre bore and fall into the shaft bottom through inclined hole 5, blanking plug can not influence water injection rate because of the obstruction of sand setting yet, effectively reduces production costs.
Claims (1)
1, a kind of eccentric injection mandrel comprises seating nipple (1) and housing (2), it is characterized in that: have an inclined hole (5) that communicates with centre bore (4) on the hole wall between the centre bore (4) of the eccentric orfice (3) of seating nipple (1) and seating nipple (1); Seating nipple (1) is fixed in the housing (2) by screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063954 CN2756824Y (en) | 2004-12-09 | 2004-12-09 | Deviation water distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063954 CN2756824Y (en) | 2004-12-09 | 2004-12-09 | Deviation water distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2756824Y true CN2756824Y (en) | 2006-02-08 |
Family
ID=35965210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063954 Expired - Fee Related CN2756824Y (en) | 2004-12-09 | 2004-12-09 | Deviation water distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2756824Y (en) |
-
2004
- 2004-12-09 CN CN 200420063954 patent/CN2756824Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |