CN209083273U - A kind of underground reversing arrangement - Google Patents
A kind of underground reversing arrangement Download PDFInfo
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- CN209083273U CN209083273U CN201821951930.5U CN201821951930U CN209083273U CN 209083273 U CN209083273 U CN 209083273U CN 201821951930 U CN201821951930 U CN 201821951930U CN 209083273 U CN209083273 U CN 209083273U
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- hydraulic cylinder
- central tube
- underground
- commutation
- top connection
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Abstract
The utility model provides a kind of underground reversing arrangement, including top connection, hydraulic cylinder, central tube, back tight cap, commutate pin, reversing cover, steel ball, spring, lower contact, wherein top connection, hydraulic cylinder and lower contact are in turn connected to form a receiving pipeline from top to bottom, pass through hydraulic drive central tube, to drive the steel ball of central tube of trailer mobile, realize the opening and closing in commutation channel in the position for changing steel ball, and underground commutation tool ensures the accuracy to commutate by commutating change in location of the pin on central tube commutation track, underground commutation tool is sealed by steel ball, oil pressure switching operation is simple, it is easy for construction, has good practicability.
Description
Technical field
The utility model, which belongs to, is related to field of petroleum exploitation, and in particular to a kind of underground reversing arrangement.
Background technique
At present during oil mining, due to the large-scale application of fracturing technique, stratum after the completion of individual block pressure break
Pressure is high, and the technology for solving this problem application is mainly two kinds, and one is the big density well killing fluid kill-job of use, another kind is
Using Operating Pressure equipment, there are certain drawbacks in both modes, and well killing fluid can pollute stratum, influence production capacity,
Construction period is increased using equipment with pressure, danger coefficient is big, and increases operating cost.
Utility model content
The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide it is a kind of it is easy to operate,
Safety and stability, well head may be implemented without pressure operation underground reversing arrangement.
In order to achieve the above purpose, the utility model uses the following technical solution:
In a general aspect, a kind of underground reversing arrangement is provided, including top connection, hydraulic cylinder, central tube, back are tightly
Cap, commutation pin, reversing cover, steel ball, spring, lower contact, wherein top connection, hydraulic cylinder and lower contact successively connect from top to bottom
It connects to form a receiving pipeline, the lower part of top connection is screwed onto the upper inner of hydraulic cylinder, and the lower part of hydraulic cylinder is screwed onto
The upper inner of lower contact；
Central tube setting is accommodating in pipeline, and the top of central tube is set in the lower inside of top connection, under central tube
Portion is set in the lower inside of hydraulic cylinder；
Reversing cover is plugged between central tube and hydraulic cylinder, and back tight cap is screwed onto the upper inner of reversing cover, central tube
Outside is provided with interconnected the first commutation track and the second commutation track, and the lower end surface of the first commutation track is located at second and changes
It, and can be in the first commutation track and the second commutation track in commutation pin one end insertion commutation track to above the lower end surface of track
Interior sliding, upper surface and the back tight cap of the other end for the pin that commutates abut against, the lower surface of the other end for the pin that commutates and commutation
Set abuts against.
Spring is arranged inside lower contact, and the top of spring is arranged in steel ball, and steel ball is abutted against with hydraulic cylinder lower end.
Preferably, top connection includes the first anchor ring, the upper surface arranged for interval of the first anchor ring and central tube.
Preferably, lower contact includes that the lower end of the second anchor ring spring and the second anchor ring of lower contact abut against.
Preferably, underground reversing arrangement further includes support sleeve, and support is set between steel ball and spring, steel ball and support
The tapering transition inner circle of set abuts against, and the intermediate anchor ring of spring and support sleeve abuts against.
Preferably, central tube includes upper pipeline and lower pipeline, and upper pipeline is set in the lower inside of top connection, lower pipeline set
It is located at the lower inside of hydraulic cylinder, upper pipeline outside diameter is greater than lower pipeline outside diameter, upper pipeline and lower pipeline junction
The upper surface arranged for interval of formation center anchor ring, center anchor ring and back tight cap.
Preferably, underground reversing arrangement further includes the first top connection sealing ring and the second top connection sealing ring, is connect on first
Head sealing ring and the second top connection sealing ring be separately positioned between top connection and hydraulic cylinder and top connection and central tube it
Between.
Preferably, underground reversing arrangement further includes the first reversing cover sealing ring and the second reversing cover sealing ring, the first commutation
Set sealing ring and the second reversing cover sealing ring are separately positioned on the upper outside and lower outside of reversing cover.
Preferably, underground reversing arrangement further include first hydraulic cylinder set sealing ring and second hydraulic cylinder set sealing ring, first
Hydraulic cylinder sealing ring and second hydraulic cylinder set sealing ring are respectively to be set between hydraulic cylinder and lower contact and central tube
Between hydraulic cylinder.
Preferably, pipe is provided on the inside of the top of top connection connect screw thread.
The utility model provides a kind of underground reversing arrangement, by hydraulic drive central tube, to drive under central tube
The steel ball of side is mobile, and the opening and closing in commutation channel are realized in the position for changing steel ball, and underground commutation tool passes through commutation
Pin ensures the accuracy of commutation in the change in location that central tube commutates on track；Underground commutation tool is carried out close by steel ball
Envelope, oil pressure switching operation is simple, easy for construction, has good practicability.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the underground reversing arrangement of the utility model；
Fig. 2 is the structural schematic diagram of the commutation track of the underground reversing arrangement of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 is the structural schematic diagram of the underground reversing arrangement of the utility model, as shown in Figure 1, the utility model embodiment
Disclose a kind of underground reversing arrangement, including top connection 1, hydraulic cylinder 5, central tube 6, back tight cap 7, commutation pin 9, reversing cover
10, steel ball 14, spring 16, lower contact 17, wherein top connection 1, hydraulic cylinder 5 and lower contact 17 are in turn connected to form from top to bottom
One receiving pipeline, it is notable that top connection 1, hydraulic cylinder 5 are identical with the outside diameter of lower contact 17, i.e., entire to hold
It receives the outer surface flush of pipeline, facilitates and be put into underground reversing arrangement into well.
Specifically, the lower part of top connection 1 is screwed onto the upper inner of hydraulic cylinder 5, the lower part of hydraulic cylinder 5 is screwed onto down
The upper inner of connector 17.It is worth noting that, the inner surface of top connection 1 is provided with the first anchor ring, the first anchor ring and central tube 6
Upper surface arranged for interval.
Further, the setting of central tube 6 is accommodating in pipeline, and central tube 6 includes that upper pipeline and lower pipeline, upper pipeline are arranged
In the lower inside of top connection 1, lower pipeline is set in the lower inside of hydraulic cylinder 5, and central tube 6 can be in top connection 1
With sliding opposite in hydraulic cylinder 5.
Further, reversing cover 10 is plugged between central tube 6 and hydraulic cylinder 5, and back tight cap 7 is screwed onto reversing cover 10
Upper inner, pipeline outside diameter is greater than lower pipeline outside diameter on central tube 6, and upper pipeline and lower pipeline junction form center
Anchor ring, the upper surface arranged for interval of center anchor ring and back tight cap 7.When central tube 6 moves down, back tight cap 7 can be to center
Pipe 6 plays position-limiting action.
Fig. 2 is the structural schematic diagram of the commutation track of the underground reversing arrangement of the utility model, as shown in Fig. 2, central tube 6
Outside is provided with interconnected the first commutation track 111 and the second commutation track 222, the lower end surface of the first commutation track 111
It is commutated above the lower end surface of track 222 positioned at second, commutation 9 one end of pin insertion commutation track is interior and can be in the first commutation track
111 and second sliding in commutation track 222, the upper surface of the other end for the pin 9 that commutates abutted against with back tight cap 7, commutation pin 9
The lower surface of the other end abutted against with reversing cover 10.Pin 9 limits central tube 6 in the commutation gliding in tracks of central tube 6
Stroke, ensure that the reliability of commutation.
Further, the inner surface of lower contact 17 is provided with the second anchor ring, the second anchor ring, and spring 16 is arranged in lower contact 17
Inside, the lower end of spring 16 are abutted against with the second anchor ring, also, the top of spring 16 and the upper end of spring 16 is arranged in steel ball 14
It abuts against.
Further, steel ball 14 is abutted against with 5 lower end of hydraulic cylinder；Also, when central tube 6 moves down, under central tube 6
End can also be abutted against with steel ball 14, so that steel ball 14 be pushed to move down, open channel.
Further, underground reversing arrangement further includes support sleeve 15, and support sleeve 15 is arranged between steel ball 14 and spring 16,
The tapering transition inner circle of steel ball and support sleeve 15 abuts against, and spring 16 and the intermediate anchor ring of support sleeve 15 abut against.
Further, underground reversing arrangement further includes the first top connection sealing ring 3 and the second top connection sealing ring 4, and first
Top connection sealing ring 3 and the second top connection sealing ring 4 are separately positioned between top connection 1 and hydraulic cylinder 5 and 1 He of top connection
Between central tube 9.
Further, underground reversing arrangement further includes the first reversing cover sealing ring 8 and the second reversing cover sealing ring 11, and first
Reversing cover sealing ring 8 and the second reversing cover sealing ring 11 are separately positioned on the upper outside and lower outside of reversing cover 10.
Further, underground reversing arrangement further includes first hydraulic cylinder set sealing ring 12 and second hydraulic cylinder set sealing ring
13, first hydraulic cylinder set sealing ring 12 and second hydraulic cylinder set sealing ring 13 are respectively to be set to hydraulic cylinder 5 and lower contact 17
Between and central tube 6 and hydraulic cylinder 5 between.
Above-mentioned each sealing ring is two and is arranged side by side, and sealing effect is more preferable.
Further, pipe is provided on the inside of the top of top connection 1 and connects screw thread, can dock with oil pipe.
The specifically used process of the underground reversing arrangement of the utility model is, by underground reversing arrangement upper end connected pipes,
Lower end connects other common auxiliary tools, then after underground reversing arrangement is put into specified position, fixes well head, then
Hydraulic oil is passed through into oil pipe, oil pressure is set as 5MPa, and hydraulic oil initially enters pressure-bearing idle loop 2, due to 2 section of pressure-bearing idle loop compared with
Greatly, oil pressure pushes central tube 6 and moves down, at this point, commutation pin 9 is along the second commutation 222 uplink of track, under central tube 6
End pushes steel ball 14 to move down, and steel ball 14 pushes 15 compressed spring 16 of support sleeve, when the commutation arrival of pin 9 extreme higher position is laggard
After entering the first commutation track 111, hydraulic oil is removed at this time, and steel ball 14 moves upwards under the elastic force effect of spring 16, reversing pin
Nail 9 along first commutation track 111 move down, due to first commutation track 111 lower end surface than second commutation track 222 lower end
Face is high, and commutation pin 9 can not restore to original position, and oil channel maintains to open.
When needing to close oil channel, operation is identical when opening with channel, and hydraulic oil, oil pressure setting are passed through into oil pipe
For 5MPa, hydraulic oil initially enters pressure-bearing idle loop 2, and oil pressure pushes central tube 6 and moves down, at this point, commutation pin 9 is along first
Commutate 11 uplink of track, and the lower end of central tube 6 pushes steel ball 14 to move down, and steel ball 14 pushes 15 compressed spring 16 of support sleeve,
After entering the second commutation track 222 after the pin 9 that commutates reaches extreme higher position, hydraulic oil is removed at this time, steel ball 14 is in spring 16
Elastic force effect under move upwards, commutation pin 9 is moved down along the first commutation track 111, and commutation pin 9 restores to original position, stone
Oily channel is closed.
The embodiment of this specification provides a kind of underground reversing arrangement, by hydraulic drive central tube, thus in driving
Steel ball below heart pipe is mobile, and the opening and closing in commutation channel are realized in the position for changing steel ball, and underground commutation tool is logical
Change in location of the commutation pin on central tube commutation track is crossed to ensure the accuracy to commutate；Underground commutation tool passes through steel ball
It being sealed, oil pressure switching operation is simple, and it is easy for construction, have good practicability.
It is above-mentioned that this specification specific embodiment is described.Other embodiments are in the scope of the appended claims
It is interior.It should be pointed out that for those skilled in the art, under the premise of not departing from the application principle, may be used also
To make several improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the application.
Claims (9)
1. a kind of underground reversing arrangement, which is characterized in that including top connection (1), hydraulic cylinder (5), central tube (6), back tight cap
(7), commutation pin (9), reversing cover (10), steel ball (14), spring (16), lower contact (17), wherein
The top connection (1), the hydraulic cylinder (5) and the lower contact (17) are in turn connected to form a receiving from top to bottom
Pipeline, the lower part of the top connection (1) are screwed onto the upper inner of the hydraulic cylinder (5), the lower part of the hydraulic cylinder (5)
It is screwed onto the upper inner of the lower contact (17)；
The central tube (6) is arranged in the receiving pipeline, and the top of the central tube (6) is set in the top connection (1)
Lower inside, the lower part of the central tube (6) is set in the lower inside of the hydraulic cylinder (5)；
The reversing cover (10) is plugged between the central tube (6) and the hydraulic cylinder (5), and the back tight cap (7) is spirally connected
Upper inner in the reversing cover (10), the central tube (6) is external to be provided with the first interconnected commutation track (111)
With the second commutation track (222), the lower end surface of first commutation track (111) is located at second commutation track (222)
It, and can be track (111) and described in first commutation in the commutation pin (9) one end insertion commutation track above lower end surface
The upper surface of sliding in second commutation track (222), the other end of commutation pin (9) is abutted against with the back tight cap (7),
The lower surface of the other end of commutation pin (9) is abutted against with the reversing cover (10)；
Spring (16) setting is internal in the lower contact (17), and the steel ball (14) is arranged in the upper of the spring (16)
Side, the steel ball (14) abut against with the hydraulic cylinder (5) lower end.
2. underground reversing arrangement according to claim 1, which is characterized in that the top connection (1) includes the first anchor ring, institute
State the upper surface arranged for interval of the first anchor ring and the central tube (6).
3. underground reversing arrangement according to claim 1, which is characterized in that the lower contact (17) includes the second anchor ring institute
Second anchor ring of the lower end and the lower contact (17) of stating spring (16) abuts against.
4. underground reversing arrangement according to claim 1, which is characterized in that further include support sleeve (15), the support sleeve
(15) it is arranged between the steel ball (14) and the spring (16), in the tapering transition of the steel ball and the support sleeve (15)
Circle abuts against, and the spring (16) and the intermediate anchor ring of the support sleeve (15) abut against.
5. underground reversing arrangement according to claim 1, which is characterized in that the central tube (6) includes upper pipeline under
Pipeline, the upper pipeline are set in the lower inside of the top connection (1), and the lower pipeline is set in the hydraulic cylinder (5)
Lower inside, the upper pipeline outside diameter is greater than the lower pipeline outside diameter, and the upper pipeline and the lower pipeline connect
The place of connecing forms center anchor ring, the upper surface arranged for interval of the center anchor ring and the back tight cap (7).
6. underground reversing arrangement according to claim 1-5, which is characterized in that further include the first top connection sealing
Enclose (3) and the second top connection sealing ring (4), the first top connection sealing ring (3) and the second top connection sealing ring (4) point
Not She Zhi between the top connection (1) and the hydraulic cylinder (5) and the top connection (1) and the central tube (6) it
Between.
7. underground reversing arrangement according to claim 1-5, which is characterized in that further include the sealing of the first reversing cover
Enclose (8) and the second reversing cover sealing ring (11), the first reversing cover sealing ring (8) and the second reversing cover sealing ring (11)
It is separately positioned on the upper outside and lower outside of the reversing cover (10).
8. underground reversing arrangement according to claim 1-5, which is characterized in that further include that first hydraulic cylinder set is close
Seal (12) and second hydraulic cylinder set sealing ring (13), first hydraulic cylinder set sealing ring (12) and the second hydraulic cylinder set
Sealing ring (13) be respectively be set between the hydraulic cylinder (5) and the lower contact (17) and the central tube (6) and
Between the hydraulic cylinder (5).
9. underground reversing arrangement according to claim 1, which is characterized in that set on the inside of the top of the top connection (1)
It is equipped with pipe and connects screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951930.5U CN209083273U (en) | 2018-11-26 | 2018-11-26 | A kind of underground reversing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951930.5U CN209083273U (en) | 2018-11-26 | 2018-11-26 | A kind of underground reversing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209083273U true CN209083273U (en) | 2019-07-09 |
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ID=67125529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821951930.5U Active CN209083273U (en) | 2018-11-26 | 2018-11-26 | A kind of underground reversing arrangement |
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| Country | Link |
|---|---|
| CN (1) | CN209083273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187434A (en) * | 2020-01-14 | 2021-07-30 | 胜利油田利丰稠油技术开发有限公司 | Composite material fast drilling cannula bridge plug |
-
2018
- 2018-11-26 CN CN201821951930.5U patent/CN209083273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187434A (en) * | 2020-01-14 | 2021-07-30 | 胜利油田利丰稠油技术开发有限公司 | Composite material fast drilling cannula bridge plug |
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