CN206158644U - Pull out disconnected formula jarring unfreezing device - Google Patents
Pull out disconnected formula jarring unfreezing device Download PDFInfo
- Publication number
- CN206158644U CN206158644U CN201621153868.6U CN201621153868U CN206158644U CN 206158644 U CN206158644 U CN 206158644U CN 201621153868 U CN201621153868 U CN 201621153868U CN 206158644 U CN206158644 U CN 206158644U
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- China
- Prior art keywords
- pull
- sleeve
- pull out
- jarring
- disconnected
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Abstract
The utility model relates to a pull out disconnected formula jarring unfreezing device among the oilfield workover belongs to oilfield downhole operation to junk jarring unfreezing well repair tool technical field. The utility model discloses by the top connection, go up the sleeve, salvage a section of thick bamboo, joint down, install between last sleeve and salvage tin and to pull out a disconnected core section of thick bamboo, can pull out and be equipped with the annular on the disconnected core section of thick bamboo and pull out disconnected recess. The annular is pulled out disconnected groove and can be pulled out absolutely during the use, and the tubular column that makes the instrument lower part is the jarring stuck point energetically, reduces tubular column and the fricative influence of casing wall, effectively increases the processing success rate of sticking of tool tubular column. The utility model discloses single -stage or multistage pulling out absolutely can be designed as required, the unfreezing operation field of tubular column can be extensively be used for.
Description
Technical field
This utility model is that one kind pulls off formula bumper stuck releasing device, belongs to oilfield downhole operation to junk jarring releasing well workover
Technical field of tools.
Background technology
During underground work, down-hole string or the jammed situation of instrument are frequently encountered, tubing string or instrument are by card
Position we be referred to as " stuck point ".Because production needs, need to be dealt from well by the tubing string of card or instrument, conventional side
Method is to enter fishing string and instrument by under, is dragged for by the tubing string or instrument of card, larger to fishing string one with ground installation
Upper lifting power, then quickly transfer, to " stuck point " one above carry and under hit alternate power, the process is referred to as " activity solution
Card ".
Because Petroleum Production well is not completely vertical, but there is certain angle with vertical direction, the phenomenon claims
Be hole deviation, due to the presence of hole deviation, the tubing string in well will produce frictional force with the borehole wall, so as to affect fishing string to stuck point
Active force.
It is most of to the impulse force of stuck point downwards in decentralization due to the elongation and the presence of hole deviation of tubing string during activity unfreezing
The reduction of tubing string and the friction of tubing string and the borehole wall are consumed in, impulsive force discharges in this process, make the power at stuck point cannot be real
Now it is mutated, i.e., cannot realizes the jarring to stuck point, substantially reduces activity unfreezing effect.
The content of the invention
This utility model purpose be in order to overcome activity unfreezing during, the friction of tubing string and the borehole wall and pipe when transferring tubing string
The defect that power is excessive, shock effect is bad that post elongation reduction is consumed, there is provided one kind pulls off formula bumper stuck releasing device.
This utility model is made up of top connection, upper bush, fishing socket, lower contact, is installed between upper bush and fishing socket
Having can pull off core cylinder, can pull off core cylinder and be provided with annular and pull off groove.
This utility model is arranged on into the specific part of fishing string, upper lifting pipe post to certain load is pulled off can pull off core
Cylinder, make fishing socket and lower contact with bottom oil pipe it is rapid under hit, jarring stuck point, reach improve shock effect, improve unfreezing success
The purpose of rate.Can be designed as needed it is multistage pull off, realize multiple shock effect.
Description of the drawings
Fig. 1 pulls off the schematic diagram of formula bumper stuck releasing device for this utility model.
Specific embodiment
As shown in Figure 1, this utility model is made up of top connection 1, upper bush 2, fishing socket 4, lower contact 5, upper bush 2 with
Being provided between fishing socket 4 can pull off core cylinder 3, can pull off core cylinder 3 and be provided with annular and pull off groove 304.
Core cylinder 3 can preferably be pulled off can pull off sleeve, including sliding sleeve 301 for two grades, and the first order can pull off sleeve
303, the second level pulls off sleeve 302；The second level can pull off the upper end of sleeve 302 and be threadedly coupled with upper bush 2, lower end be provided with can with beat
The external screw thread of the female thread of dipper 4 connection, external screw thread upper end is provided with annular and can pull off groove 305；The lower end of first order sleeve 303 is with
Joint female thread connects, and threaded upper end is provided with annular and can pull off groove 304, and upper end is threadedly coupled with sliding sleeve 301；Slip cap
Cylinder upper end is provided with outer step, and being overlapped on the second level can pull off on sleeve 302.
The beneficial effects of the utility model are：By under this utility model on fishing tool 1000m right positions, drag for
To design load, utility model can pulled off and ruptured at groove 304, salvage upper lifting pipe post in the annular that can pull off core cylinder 3 after junk
The oil pipe of cylinder 4 and lower contact 5 and bottom loses suddenly pulling force, and the oil pipe being stretched shrinks rapidly, and in tubing string gravity and elastic force
In the presence of, jarring stuck point；After the completion of jarring, under enter Special fishing tool and drag for and play out tubing string after fishing socket 4；
Secondary jarring can be realized using can preferably pull off core cylinder 3, after a jarring is completed, the former jarring pipe of decentralization
Post, the first order after pulling off can pull off the inner chamber upward sliding of sleeve 303 and sliding sleeve 301 along upper bush 2, rotate forward tubing string,
The second level can pull off the lower end screw thread of sleeve 302 and be connected with the female thread make-up of fishing socket 4, above carry fishing string negative to another design
Lotus, utility model can pulled off in the annular that can pull off core cylinder 3 and ruptured at groove 305, the oil of fishing socket 4 and lower contact 5 and bottom
Rostrum so loses pulling force, and the oil pipe being stretched shrinks rapidly, and in the presence of tubing string gravity and elastic force, secondary jarring stuck point；
After the completion of secondary jarring, under enter Special fishing tool and drag for and play out tubing string after fishing socket 4.
The series of the pulled off core cylinder 3 for pulling off sleeve can as needed be increased, multiple jarring is realized.
Claims (2)
1. formula bumper stuck releasing device is pulled off, is made up of top connection (1), upper bush (2), fishing socket (4), lower contact (5), its feature
It is：Being provided between upper bush (2) and fishing socket (4) can pull off core cylinder (3), can pull off core cylinder (3) and be provided with annular and pull out
Disconnected groove (304).
It is 2. according to claim 1 to pull off formula bumper stuck releasing device, it is characterised in that：Core cylinder (3) can be pulled off can for two grades
Sleeve, including sliding sleeve (301) are pulled off, the first order can pull off sleeve (303), and the second level pulls off sleeve (302)；The second level can
Pull off sleeve (302) upper end to be threadedly coupled with upper bush (2), lower end is provided with the external screw thread that can be connected with fishing socket (4) female thread,
External screw thread upper end is provided with annular and can pull off groove (305)；First order sleeve (303) lower end is connected with lower contact female thread, screw thread
Upper end is provided with annular and can pull off groove (304), and upper end is threadedly coupled with sliding sleeve (301)；Sliding sleeve upper end is provided between outer land
Rank, being overlapped on the second level can pull off on sleeve (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153868.6U CN206158644U (en) | 2016-10-31 | 2016-10-31 | Pull out disconnected formula jarring unfreezing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621153868.6U CN206158644U (en) | 2016-10-31 | 2016-10-31 | Pull out disconnected formula jarring unfreezing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158644U true CN206158644U (en) | 2017-05-10 |
Family
ID=58655835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621153868.6U Active CN206158644U (en) | 2016-10-31 | 2016-10-31 | Pull out disconnected formula jarring unfreezing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206158644U (en) |
-
2016
- 2016-10-31 CN CN201621153868.6U patent/CN206158644U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |