CN2906055Y - Eccentric water distributor with double guide - Google Patents
Eccentric water distributor with double guide Download PDFInfo
- Publication number
- CN2906055Y CN2906055Y CN 200620030469 CN200620030469U CN2906055Y CN 2906055 Y CN2906055 Y CN 2906055Y CN 200620030469 CN200620030469 CN 200620030469 CN 200620030469 U CN200620030469 U CN 200620030469U CN 2906055 Y CN2906055 Y CN 2906055Y
- Authority
- CN
- China
- Prior art keywords
- guide way
- main body
- throw
- water distributor
- guide
- 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 - Lifetime
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- Fishing Rods (AREA)
Abstract
The utility model discloses an eccentric water distributor with double guides which comprises a main body of the water distributor; wherein an upper guide and a lower guide are respectively arranged at the upper part and the lower part of the main body of the water distributor, the upper guide and the lower guide are open annular cylinders, and the wall of the annular evenly pinches to form a tapered spiral head in a down-top order. Because of the adoption of the structure in the utility model, an upper guide is added in the structure. When the throw-in device passes the main body of the water distributor, the guide claw of the lower part of the throw-in device moves under the guidance of the lower guide. If the guidance fails, the throw-in device continues lowering and the main throw-in claw of the throw-in device guides under the guidance of the tapered spiral surface of the upper guide. Thereby the time of the guiding is increased, the ratio of the slip of the throw-in device is reduced and the throwing and fishing efficiency is improved.
Description
Technical field
The utility model relates to a kind of injection well downhole flow regulator, especially relates to a kind of pair of guide way eccentric injection mandrel.
Background technology
At present, eccentric injection mandrel commonly used both at home and abroad is to carry out one of downhole tool of layered quantitative water filling according to the different water absorbing capacities of oil reservoir.During normal water filling, the rubber tube of packer is in open configuration, and oil reservoir is divided into some water filling intervals.Blanking plug in each water filling interval leans on the step (diameter is 22mm) of supporter to be seated in the inclined to one side hole of seating nipple main body, and cam is stuck in expansion position, top, inclined to one side hole, and blanking plug two group of four road packing is up and down sealed inclined to one side hole fluid hole.Inject water through filter screen,, inject target zone by water nozzle, seal section liquid outlet groove, after the hole fluid hole enters the oil pipe annular space partially.The seperated layer water injection amount is controlled by the water nozzle diameter.As find that the water nozzle diameter is improper, can change at any time.But it is low to exist the pulling success rate in test allotment water nozzle process, causing the low main cause of pulling success rate is that guide way is single guiding, its guiding mechanism is to utilize eccentric injection mandrel lower body part nib shape helicoid, guiding throw in catcher guide grab drives the rotation of throw in catcher main body, pulling is played the pulling pawl import in the centralizer body vertical slot of top, the inclined to one side hole of Φ 20mm, implement the blanking plug pulling.Or utilize eccentric injection mandrel main body top nib shape helicoid guide way directly to guide throw in catcher pulling pawl to enter in the centralizer body vertical slot of top, the inclined to one side hole of Φ 20mm, implement the blanking plug pulling.Because inner major diameter is little, the throw in catcher rotation can be subjected to certain resistance, is subjected to downhole tool fouling and guide grab Effect on Performance simultaneously, causes easily sliding layer occurring or be hampered the problem that the pulling success rate is low in pulling.
Summary of the invention
The purpose of this utility model just is to solve in the separated-zone water infection oil field tubing string technology, the problem that plug for eccentricity hole pulling success rate is low.Thereby provide a kind of eccentric injection mandrel.
The purpose of this utility model can realize by following measure:
The utility model comprises the injection well downhole flow regulator main body, is respectively arranged with guide way and following guide way in injection well downhole flow regulator main body top, bottom, and last guide way and following guide way are opening shape ring tube, a ring barrel from the bottom to top symmetrically helical form be shrunk to the pinnacle.Last guide way is provided with an inclined plane.
Going up guide way in the utility model is connected with the injection well downhole flow regulator main body by bolt.Following guide way is connected with support under the injection well downhole flow regulator main body by bolt.
The utility model is owing to adopt said structure, increased last guide way on the structure, when throw in catcher passes through the injection well downhole flow regulator main body, in following guide way guiding, if the guiding failure, throw in catcher continues to transfer throw in catcher bottom guide grab earlier, main fishing apparatus hook continues guiding under the guiding of last guide way nib shape helicoid, increase the guiding number of times, reduced the probability of the sliding layer of throw in catcher, improved pulling efficient.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
The utility model is done with detailed description below in conjunction with drawings and Examples:
As shown in the figure, the utility model comprises injection well downhole flow regulator main body 4, be respectively arranged with guide way 3 and following guide way 6 in injection well downhole flow regulator main body 4 tops, bottom, last guide way 3 and following guide way 6 are opening shape ring tube, a ring barrel from the bottom to top symmetrically helical form be shrunk to the pinnacle.Last guide way 3 is connected with injection well downhole flow regulator main body 4 by bolt.Following guide way 6 is connected with support 7 under the injection well downhole flow regulator main body 4 by bolt.Last guide way 3 is provided with the inclined plane of a band angle.Label 1 is top connection, and top connection is connected with connecting cylinder 21 time, and connecting cylinder 2 is arranged with injection well downhole flow regulator main body 4, is positioned at injection well downhole flow regulator main body 4 in connecting cylinder 2 inner chambers and is provided with guide way 3.Injection well downhole flow regulator main body 4 is arranged with support 7, and support 7 is arranged with lower contact 8, also is provided with guide way 6 down on support 7, and support 7 is outside equipped with down connecting cylinder 9.Specifically: the utility model is made up of eccentric injection mandrel main body 4, top connection 1, upper joint sleeve 2, last guide way 3, following guide way 6, support 7, lower contact 8 lower joint sleeves 9.Top connection 1 and upper joint sleeve 2 screwed connections, upper joint sleeve 2 bottoms connect with eccentric injection mandrel main body 4 screw threads, eccentric injection mandrel main body 4 one sidetrackings have an inclined to one side hole, be used for fixing blanking plug, plane and last guide way 3 screw on the eccentric injection mandrel main body 4, the opening vertical slot of last guide way 3 is consistent with eccentric injection mandrel main body 4 inclined to one side hole directions, support 7 and the 4 bottom screwed connections of eccentric injection mandrel main body, and with three groups of screws location, support 7 inside are screwed down guide way 6, the opening vertical slot of following guide way 6 and eccentric injection mandrel main body 4 inclined to one side holes, the opening vertical slot unanimity of last guide way 3, lower joint sleeve 7 tops and the 4 bottom screwed connections of eccentric injection mandrel main body, lower joint sleeve bottom and lower contact 8 screwed connections.
Operating principle of the present utility model is as follows: technical solutions of the utility model are: utilize the theory structure of present KPX, KPXZ series injection well downhole flow regulator to form two guide way structures.At first remove the centralizer body of KPX eccentric injection mandrel, utilize the KPXZ structure, directly eccentric injection mandrel main body top set up a nib shape helicoid on guide way, guiding probability when improving the pulling blanking plug, last guide way opening vertical slot increases the inclined plane of a band angle, avoid being hampered of pulling instrument direction pawl, guide way opening vertical slot is consistent with former eccentric injection mandrel lower body part guide way opening direction, constitutes two guide way eccentric injection mandrels.
After adopting this spline structure, owing to increased last guide way, when throw in catcher passes through the injection well downhole flow regulator main body, in following guide way guiding, if the guiding failure, throw in catcher continues to transfer throw in catcher bottom guide grab earlier, main fishing apparatus hook with the guiding of last guide way nib shape helicoid under continue guiding, increase the guiding number of times, reduced the probability of the sliding layer of throw in catcher, improved pulling efficient.
Claims (4)
1, a kind of pair of guide way eccentric injection mandrel, comprise injection well downhole flow regulator main body (4), it is characterized in that: be respectively arranged with guide way (3) and following guide way (6) in injection well downhole flow regulator main body (4) top, bottom, last guide way (3) and following guide way (6) are opening shape ring tube, ring tube barrel from the bottom to top symmetrically helical form be shrunk to the pinnacle.
2, according to claim 1 pair of guide way eccentric injection mandrel is characterized in that: the described guide way (3) of going up is connected with injection well downhole flow regulator main body (4) by bolt.
3, according to claim 1 and 2 pair of guide way eccentric injection mandrel is characterized in that: described down guide way (6) is connected with support (7) under the injection well downhole flow regulator main body (4) by bolt.
4, according to claim 1 and 2 pair of guide way eccentric injection mandrel is characterized in that: the described guide way (3) of going up is provided with an inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620030469 CN2906055Y (en) | 2006-06-23 | 2006-06-23 | Eccentric water distributor with double guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620030469 CN2906055Y (en) | 2006-06-23 | 2006-06-23 | Eccentric water distributor with double guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906055Y true CN2906055Y (en) | 2007-05-30 |
Family
ID=38114689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620030469 Expired - Lifetime CN2906055Y (en) | 2006-06-23 | 2006-06-23 | Eccentric water distributor with double guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906055Y (en) |
-
2006
- 2006-06-23 CN CN 200620030469 patent/CN2906055Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070530 |
|
| EXPY | Termination of patent right or utility model |