CN2616682Y - Eccentric injection well down-hole flow - Google Patents
Eccentric injection well down-hole flow Download PDFInfo
- Publication number
- CN2616682Y CN2616682Y CN 03245293 CN03245293U CN2616682Y CN 2616682 Y CN2616682 Y CN 2616682Y CN 03245293 CN03245293 CN 03245293 CN 03245293 U CN03245293 U CN 03245293U CN 2616682 Y CN2616682 Y CN 2616682Y
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- China
- Prior art keywords
- eccentric
- blanking plug
- utility
- hole
- model
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- Expired - Fee Related
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Abstract
The utility model relates to an eccentric water distributor, which mainly solves problems of blanking plug plugging and guiding body sheath abscission caused by prior eccentric water distributor. The utility model is characterized in that an inclined hole (7) coincident with a central hole (2) is arranged on the hole wall between an eccentric hole with the blanking plug and the central hole (2) of an eccentric body (4); a pin (6) is arranged at the screw connection between the guiding body sheath (5) and the eccentric body (4). The utility model has the advantages of avoiding sand in flood and abscission of connecting elements, and prolonging the period of usage of the water distributor.
Description
Technical field:
The utility model relates to used downhole tool in the petroleum production engineering field, oil field, belongs to a kind of eccentric injection mandrel.
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 common tool used in the 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.Adopts between the guide way sheath of this eccentric injection mandrel and the eccentric body simultaneously to be threaded, this connected mode fastness is poor, and the guide way sheath is come off, and injection well downhole flow regulator is scrapped, and the injection well downhole flow regulator life-span lacks.
The utility model content:
Result in blockage easily in order to overcome existing eccentric injection mandrel that the device card is stifled, the caducous deficiency of guide way sheath, the utility model provides a kind of eccentric injection mandrel, this eccentric injection mandrel can avoid that the blanking plug card is stifled, the guide way sheath comes off, can guarantee that water injection rate reaches the requirement index, has prolonged the application life of injection well downhole flow regulator.
The technical scheme that the utility model adopted is: a kind of eccentric injection mandrel, form by seating nipple, central tube, blanking plug, eccentric body and guide way sheath, on the hole wall between the centre bore of the eccentric orfice that is equipped with blanking plug and eccentric body, have an inclined hole that communicates with centre bore; Connection of thread between guide way sheath and eccentric body is equipped with pin.
The beneficial effects of the utility model are: because this eccentric injection mandrel has adopted and have an inclined hole on eccentric body, 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 the pin to connect firm parts, strengthened the fastness that is connected between guide way sheath and the eccentric body, avoided obscission, prolonged the application life of injection well downhole flow regulator.
Description of drawings:
Fig. 1 is the utility model structure sectional view.
1-adapter sleeve among the figure, 2-centre bore, 3-blanking plug, 4-eccentric body, 5-guide way sheath, 6-pin, 7-inclined hole.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in FIG., a kind of eccentric injection mandrel, form by adapter sleeve 1, blanking plug 3, eccentric body 4 and guide way sheath 5, on the hole wall between the centre bore 2 of the eccentric orfice that is equipped with blanking plug 3 and eccentric body 4, have the inclined hole 7 that communicates with centre bore 2, the sand setting that is deposited in the eccentric body bottom can enter the shaft bottom through centre bore 2 from inclined hole 7, blanking plug 3 can not stopped up because of the sand setting that pile up eccentric body 4 bottoms, guarantee that water injection rate meets the requirements of index; Connection of thread between guide way sheath 5 and eccentric body 4 is equipped with pin 6, and pin 6 can be strengthened the connectivity robustness of guide way sheath 5 and eccentric body 4.
In actual use, the sand setting that be deposited in eccentric body 4 bottoms this moment can enter the shaft bottom from centre bore 2 through inclined hole 7, thereby has avoided blanking plug 3 to influence water injection rate because of blocking stifled phenomenon, has guaranteed the index of water injection rate requirement; Guide way sheath 5 adopts screw thread to add pin 6 with eccentric body 4 and fixes, when operate as normal, avoid the generation of this eccentric injection mandrel link obscission, has prolonged its application life.
Claims (1)
1, a kind of eccentric injection mandrel, form by adapter sleeve (1), blanking plug (3), eccentric body (4) and guide way sheath (5), it is characterized in that: on the hole wall between the centre bore (2) of the eccentric orfice that is equipped with blanking plug (3) and eccentric body (4), have an inclined hole (7) that communicates with centre bore (2); Connection of thread between guide way sheath (5) and eccentric body (4) is equipped with pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245293 CN2616682Y (en) | 2003-04-17 | 2003-04-17 | Eccentric injection well down-hole flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245293 CN2616682Y (en) | 2003-04-17 | 2003-04-17 | Eccentric injection well down-hole flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2616682Y true CN2616682Y (en) | 2004-05-19 |
Family
ID=34251559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03245293 Expired - Fee Related CN2616682Y (en) | 2003-04-17 | 2003-04-17 | Eccentric injection well down-hole flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2616682Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221124A (en) * | 2014-06-28 | 2016-01-06 | 长春市恒大石油机械有限公司 | A kind of eccentric injection mandrel with sand setting passage |
| CN108625835A (en) * | 2018-08-07 | 2018-10-09 | 阜宁县石油机械有限公司 | A kind of eccentric injection mandrel |
| CN110924909A (en) * | 2019-11-21 | 2020-03-27 | 齐齐哈尔亚盛机械制造有限公司 | Straight-fishing anti-blocking eccentric water distributor |
-
2003
- 2003-04-17 CN CN 03245293 patent/CN2616682Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221124A (en) * | 2014-06-28 | 2016-01-06 | 长春市恒大石油机械有限公司 | A kind of eccentric injection mandrel with sand setting passage |
| CN108625835A (en) * | 2018-08-07 | 2018-10-09 | 阜宁县石油机械有限公司 | A kind of eccentric injection mandrel |
| CN108625835B (en) * | 2018-08-07 | 2023-11-24 | 阜宁县石油机械有限公司 | Eccentric water distributor |
| CN110924909A (en) * | 2019-11-21 | 2020-03-27 | 齐齐哈尔亚盛机械制造有限公司 | Straight-fishing anti-blocking eccentric water distributor |
| CN110924909B (en) * | 2019-11-21 | 2020-07-14 | 齐齐哈尔亚盛机械制造有限公司 | Straight-fishing anti-blocking eccentric water distributor |
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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 |