CN214499003U - Downhole safety valve forced opening tool - Google Patents
Downhole safety valve forced opening tool Download PDFInfo
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- CN214499003U CN214499003U CN202022910540.7U CN202022910540U CN214499003U CN 214499003 U CN214499003 U CN 214499003U CN 202022910540 U CN202022910540 U CN 202022910540U CN 214499003 U CN214499003 U CN 214499003U
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Abstract
The utility model provides an instrument is opened by force to relief valve in pit, including opening a section of thick bamboo and tool joint by force, the one end of opening a section of thick bamboo by force is provided with outer cylinder base, open by force and install the shearing pin that is used for restricting both relative movement between a section of thick bamboo and the tool joint, open by force and be provided with between a section of thick bamboo and the tool joint and be used for restricting the tool joint for opening by force the limit structure that a section of thick bamboo removed towards outer cylinder base. Utilize the utility model discloses a downhole safety valve of technical scheme preparation opens instrument by force, with the tool joint setting in opening a section of thick bamboo by force, fix through the shearing pin between the two, can cut the shearing pin through downward jarring, when making open the stack shell seat by force and opening the relief valve, the tool joint breaks away from with opening a section of thick bamboo by force, more stable and reliable, the operating efficiency is improved, the steel wire tool string is after accomplishing the operation in the pit, only need lift the tool string, through limit structure, just can carry out synchronous recovery with both, need not to put in fishing tool once more and salvage, the process is practiced thrift, the operation is also simpler.
Description
Technical Field
The utility model belongs to the technical field of the oil field steel wire operation, especially, relate to a downhole safety valve opens instrument by force.
Background
At present, with the continuous improvement of domestic economy, the demand of people for petroleum and natural gas is continuously increased, which leads to the continuous increase of the operation amount of steel wires. In actual operation, often run into the circumstances that downhole safety valve trouble, valve clack can't be opened, lead to unable steel wire operation on next step, at this moment, the unable normal production of oil gas well needs put in the relief valve and opens the instrument by force for open the valve clack of relief valve, establish safe production passageway again.
In the publication of: CN205876268U discloses a downhole safety valve strong opening tool, which connects a cylindrical seating part and a body and strongly opens a safety valve by freely falling in a well, but the tool for strongly opening a safety valve has the following problems:
1. the forced opening tool is too simple, only the safety valve is forced to open by free fall, so that the forced opening effect is difficult to accurately grasp, once the forced opening fails, the forced opening tool needs to be salvaged again to go into the well again, and time and labor are wasted;
2. after the safety valve is opened, the tool string cannot be taken up by lifting the tool string, so that the tool string needs to be pulled back first, and the tool string is fished by a fishing tool which is put in the tool string to forcibly open the safety valve, so that the actual operation is very troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem, a downhole safety valve forced opening tool is designed.
Realize above-mentioned purpose the technical scheme of the utility model be, a downhole safety valve opens instrument by force, including opening a section of thick bamboo and tool joint by force, the one end of opening a section of thick bamboo by force is provided with outer cylinder base, open by force and install the shearing pin that is used for restricting both relative movement between a section of thick bamboo and the tool joint, open by force and be provided with between a section of thick bamboo and the tool joint and be used for restricting the tool joint for opening by force a limit structure towards outer cylinder base removal.
Open a section of thick bamboo by force and urceolus seat is the drum of cavity formula, urceolus seat integrated into one piece is greater than the external diameter of opening a section of thick bamboo by force in the one end of opening a section of thick bamboo by force and the external diameter of urceolus seat, the tool joint sets up in opening a section of thick bamboo by force.
The tool joint comprises a connecting portion, a limiting portion and an installation portion, wherein the connecting portion is integrally formed at one end, close to the outer barrel seat, of the limiting portion, and the installation portion is integrally formed at the other end of the limiting portion.
The forced opening barrel is of a conical table-board structure relative to one end of the outer barrel seat, a through hole penetrating through the barrel body is formed in the side wall of the forced opening barrel, and the shearing pin penetrates through the through hole.
The limiting portion is provided with a shearing pin groove, the shearing pin is inserted into the shearing pin groove, the mounting portion is provided with a mounting hole, and mounting threads are arranged on the side wall of the mounting hole.
The limiting structure comprises an inner step arranged in the forced opening cylinder and an outer step arranged in the limiting part, and the outer step is matched with the inner step.
The limiting structure comprises a rotating shaft, a limiting plate, a torsion spring and an inner step, wherein the rotating shaft is rotatably installed on two sides of the limiting part, the limiting plate is sleeved on the rotating shaft, the torsion spring is connected between the limiting plate and the limiting part and sleeved on the rotating shaft, and the inner step is arranged in the forced opening cylinder.
And a rolling column is rotatably embedded on the outer side surface of the limiting plate.
The external diameter of spacing portion is less than the internal diameter of opening a section of thick bamboo by force, the surface of rolling post contacts with the internal surface of opening a section of thick bamboo by force.
The limiting plate is provided with a shearing pin groove, and the shearing pin is inserted in the shearing pin groove.
Utilize the utility model discloses instrument is opened by force to relief valve in pit of technical scheme preparation, its beneficial effect is:
1. the tool joint is arranged in the forced opening cylinder, the tool joint and the forced opening cylinder are fixed through the shearing pin, the whole tool is placed into a well when the safety valve is forced to start, when the forced opening cylinder is in contact with the safety valve, the shearing pin can be sheared through downward shock, the tool joint is separated from the forced opening cylinder when the safety valve is opened on a forced opening cylinder seat, a steel wire tool string can be lowered into the well for normal work, the mode is more stable and reliable through shock to forcibly open the safety valve, and the operation efficiency can be improved;
2. after the operation is accomplished in the pit to the steel wire tool cluster, only need lift the tool cluster, through set up in tool joint and open a limit structure between the section of thick bamboo by force, just can set up through tool joint and open a section of thick bamboo by force, retrieve both in step, need not to put in fishing tool once more and salvage, practiced thrift the process, the operation is also simpler.
Drawings
FIG. 1 is a schematic view of the entire structure of embodiment 1;
FIG. 2 is a schematic view of the entire structure of embodiment 2.
In the figure: 1. forcibly opening the cylinder; 2. a tool joint; 3. an outer cylinder base; 4. shearing the pin; 5. a connecting portion; 6. a limiting part; 7. an installation part; 8. perforating; 9. shearing a pin groove; 10. mounting holes; 11. installing threads; 12. an inner step; 13. an outer step; 14. a rotating shaft; 15. a limiting plate; 16. a torsion spring; 17. and (4) rolling the column.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
example 1: as shown in fig. 1, the downhole safety valve forced opening tool comprises a forced opening barrel 1 and a tool joint 2, wherein an outer barrel seat 3 is arranged at one end of the forced opening barrel 1, a shearing pin 4 used for limiting relative movement of the forced opening barrel 1 and the tool joint 2 is installed between the forced opening barrel 1 and the tool joint 2, a limiting structure used for limiting the tool joint 2 to move towards the outer barrel seat 3 relative to the forced opening barrel 1 is arranged between the forced opening barrel 1 and the tool joint 2, the forced opening barrel 1 and the outer barrel seat 3 are both hollow cylinders, the outer barrel seat 3 is integrally formed at one end of the forced opening barrel 1, the outer diameter of the outer barrel seat 3 is larger than that of the forced opening barrel 1, one end of the forced opening barrel 1 relative to the outer barrel seat 3 is of a conical table top structure, and the tool joint 2 is arranged in the forced opening barrel 1.
The forced opening tool comprises a forced opening barrel 1 and a tool joint 2, wherein the forced opening barrel 1 is a hollow cylinder, the tool joint 2 is arranged in the forced opening barrel 1, meanwhile, a shearing pin 4 is arranged between the tool joint 2 and the forced opening barrel 1, and the shearing pin 4 can prevent the tool joint 2 and the forced opening barrel 1 from moving relatively, so that when the forced opening tool is used for forcibly opening a fault safety valve, the forced opening barrel 1 is put into a well, the forced opening barrel 1 can open a valve clack of the safety valve through downward impact, meanwhile, the impact can also cut the shearing pin 4, the tool joint 2 is separated from the constraint of the forced opening barrel 1, and a steel wire tool string can pass through the forced opening barrel 1 to continue to go down the well for normal operation;
an outer cylinder seat 3 is arranged at one end of the forced opening cylinder 1, the outer cylinder seat 3 is also a hollow cylinder, the outer cylinder seat 3 is preferably integrally formed at the end part of the forced opening cylinder 1, the outer diameter of the outer cylinder seat 3 is larger than that of the forced opening cylinder 1, when the failed safety valve is opened by the forced opening cylinder 1, the forced opening cylinder 1 slides downwards along with the outer cylinder seat 3, the outer cylinder seat 3 can be clamped on the safety valve at the moment, the forced opening cylinder 1 is organized to continue to move downwards, and subsequent recovery is waited;
still be provided with limit structure between a section of thick bamboo 1 and the tool joint 2 open by force, limit structure can restrict tool joint 2 and remove towards the direction of outer cylinder base 3 for opening a section of thick bamboo 1 by force, after opening a fault relief valve by force 1 seat, the descending operation of steel wire tool string, after the completion, lift the tool string, when tool joint 2 gets back to in opening a section of thick bamboo 1 by force once more, because limit structure, tool joint 2 can not open a section of thick bamboo 1 by force and move towards outer cylinder base 3 for by force, change back the stretcher and opening a section of thick bamboo 1 by force and being carried out the well outside, the disposable recovery of utensil is opened altogether by force in the completion.
The limiting structure comprises an inner step 12 arranged in the forced opening barrel 1 and an outer step 13 arranged on the limiting portion 6, and the outer step 13 is matched with the inner step 12.
In this embodiment, the limiting structure comprises an inner step 12 and an outer step 13, the inner step 12 is arranged on the inner surface of the forced open cylinder 1, the outer step 13 is arranged on the outer surface of the tool joint 2, and when the tool joint 2 is lifted, the outer step 13 on the limiting part 6 is clamped on the inner step 12 of the forced open cylinder 1 so as to support the forced open cylinder 1.
Example 2: limiting structure includes axis of rotation 14, limiting plate 15, torsion spring 16 and interior step 12, axis of rotation 14 rotates the both sides of installing in spacing portion 6, limiting plate 15 suit is on axis of rotation 14, torsion spring 16 connects to establish between limiting plate 15 and spacing portion 6 and the cover is established at axis of rotation 14, interior step 12 sets up in a section of thick bamboo 1 of opening by force, it inlays and is equipped with rolling post 17 to rotate on limiting plate 15's the lateral surface, the external diameter of spacing portion 6 is less than the internal diameter of a section of thick bamboo 1 of opening by force, the surface of rolling post 17 contacts with the internal surface of a section of thick bamboo 1 of opening by force, cut round pin groove 9 has been seted up on limiting plate 15, 4 cartridge of shearing pin are in cutting round pin groove 9.
The limiting structure in embodiment 1 requires that the outer wall of the limiting portion 6 of the tool joint 2 contacts with the inner wall of the forced opening barrel 1, and the shear pin groove 9 is directly arranged on the limiting portion 6, because the shear pin 4 needs to be shocked by a downward strong force, in practical use, after the strong shock forces the shear pin 4 to break, the shear pin groove 9 on the limiting portion 6 is easily damaged, and therefore, after the forced opening tool is pulled out, the hole is often required to be re-drilled on the limiting portion 6, even the tool joint 2 needs to be replaced with a new tool joint, however, corresponding punching equipment is often not available in an operation site, the tool joint 2 which is replaced with a new tool joint is time-consuming and labor-consuming, and the cost is high, and therefore, in this embodiment, the limiting structure is further adjusted:
the limiting structure comprises a rotating shaft 14, a limiting plate 15, a torsion spring 16 and an inner step 12, the same as that in embodiment 1, the inner step 12 is still arranged on the inner wall of the forced open barrel 1, the rotating shaft 14 is rotatably provided with two sides of the limiting part 6 of the early tool joint 2, one end of the limiting plate 15 is sleeved on the rotating shaft 14, the torsion spring 16 is connected between the limiting plate 15 and the limiting part 6 and is sleeved on the rotating shaft 14, when the limiting plate 15 is rotated, the torsion spring 16 deforms, further, in the embodiment, a shear pin groove 9 is arranged on the limiting part 6, therefore, when the tool joint 2 is arranged in the forced open barrel 1, one end of the outer barrel base 3 is put in, when the tool joint is put in, the limiting plates 15 on two sides of the limiting part 6 need to be pressed to enable the swinging ends of the limiting plates to be close to each other, when the tool joint is put in the forced open barrel 1, then a shear pin 4 is inserted for fixing, after the shearing pin 4 is cut off by downward impact, the forcible opening is clamped through the outer cylinder seat 3, the tool joint 2 continues to descend, in the process, as the outer side of the limiting plate 15 is rotatably embedded with the rolling column 17, the outer surface of the rolling column 17 is contacted with the inner surface of the forcible opening, and the outer diameter of the limiting part 6 is smaller than the inner diameter of the forcible opening cylinder 1, the rolling column 17 can rotate, so that the relative friction between the limiting plate 15 and the forcible opening cylinder 1 can be reduced, when the limiting plate 15 slides over the inner step 12, the limiting plate 15 returns to the original position under the action of the torsion spring 16, namely the swinging end can rotate outwards, and when a tool string is lifted, the end part of the swinging end of the limiting plate 15 returns to be clamped on the inner step 12, so that the forcible opening cylinder 1 is lifted together, in the embodiment, the shearing pin groove 9 is arranged on the limiting plate 15, when the shearing pin groove 9 is damaged, only the limiting plate 15 can be replaced without integrally replacing the tool joint 2, the cost is reduced.
The downhole safety valve forced opening tool manufactured by the technical proposal of the utility model arranges the tool joint in the forced opening cylinder, and the tool joint and the forced opening cylinder are fixed by the shearing pin, when the safety valve is forced to start, the whole tool is put into the well, when the forced opening cylinder contacts the safety valve, the shearing pin can be cut off by downward shock, when the safety valve is forced to open the cylinder seat, the tool joint is separated from the forced opening cylinder, the steel wire tool string can be put into the well to normally work, the mode can improve the working efficiency by more stable and reliable shock forced opening of the safety valve, after the steel wire tool string completes the operation in the well, only the tool string is lifted, the forced opening cylinder can be erected by the tool joint through the limit structure arranged between the tool joint and the forced opening cylinder, the tool joint and the forced opening cylinder can be synchronously recovered, the fishing tool is not required to be put in again for fishing, the process is saved, and the operation is simpler.
The above two embodiments of the present invention have been described in detail, but the above description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. The utility model provides a downhole safety valve opens instrument by force, includes opens a section of thick bamboo (1) and tool joint (2) by force, the one end of opening a section of thick bamboo (1) by force is provided with outer bobbin base (3), its characterized in that: install between a section of thick bamboo (1) and tool joint (2) by force and be used for restricting shear pin (4) of both relative movement, open by force and be provided with between a section of thick bamboo (1) and tool joint (2) and be used for restricting tool joint (2) for opening by force a limit structure that section of thick bamboo (1) removed towards outer bobbin base (3) by force.
2. A downhole safety valve hard-opening tool according to claim 1, wherein: open a section of thick bamboo (1) and outer cylinder base (3) by force and be the drum of cavity formula, outer cylinder base (3) integrated into one piece is greater than the external diameter of opening a section of thick bamboo (1) by force in the one end of opening a section of thick bamboo (1) by force and the external diameter of outer cylinder base (3), tool joint (2) set up in opening a section of thick bamboo (1) by force.
3. A downhole safety valve hard-opening tool according to claim 2, wherein: tool joint (2) are including connecting portion (5), spacing portion (6) and installation department (7), connecting portion (5) integrated into one piece is close to the one end of outer cylinder base (3) in spacing portion (6), installation department (7) integrated into one piece is in the other end of spacing portion (6).
4. A downhole safety valve hard-start tool according to claim 3, wherein: open a section of thick bamboo by force (1) is circular cone mesa structure for the one end of outer cylinder base (3), set up perforation (8) that run through the barrel on the lateral wall of opening a section of thick bamboo by force (1), shear pin (4) are worn to establish in perforation (8).
5. The downhole safety valve hard-opening tool of claim 4, wherein: the shear pin structure is characterized in that a shear pin groove (9) is formed in the limiting portion (6), the shear pin (4) is inserted into the shear pin groove (9), a mounting hole (10) is formed in the mounting portion (7), and mounting threads (11) are arranged on the side wall of the mounting hole (10).
6. The downhole safety valve hard-opening tool of claim 5, wherein: the limiting structure comprises an inner step (12) arranged in the forced opening barrel (1) and an outer step (13) arranged in the limiting portion (6), and the outer step (13) is matched with the inner step (12).
7. The downhole safety valve hard-opening tool of claim 4, wherein: limiting structure includes axis of rotation (14), limiting plate (15), torsion spring (16) and interior step (12), axis of rotation (14) are rotated and are installed the both sides in spacing portion (6), limiting plate (15) suit is on axis of rotation (14), torsion spring (16) connect establish between limiting plate (15) and spacing portion (6) and the cover establish on axis of rotation (14), interior step (12) set up in strong an open section of thick bamboo (1).
8. The downhole safety valve hard-opening tool of claim 7, wherein: and a rolling column (17) is rotatably embedded on the outer side surface of the limiting plate (15).
9. The downhole safety valve hard-opening tool of claim 8, wherein: the external diameter of spacing portion (6) is less than the internal diameter of opening a section of thick bamboo (1) by force, the surface of rolling post (17) contacts with the internal surface of opening a section of thick bamboo (1) by force.
10. The downhole safety valve hard-opening tool of claim 9, wherein: the limiting plate (15) is provided with a shearing pin groove (9), and the shearing pin (4) is inserted into the shearing pin groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910540.7U CN214499003U (en) | 2020-12-04 | 2020-12-04 | Downhole safety valve forced opening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910540.7U CN214499003U (en) | 2020-12-04 | 2020-12-04 | Downhole safety valve forced opening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499003U true CN214499003U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022910540.7U Active CN214499003U (en) | 2020-12-04 | 2020-12-04 | Downhole safety valve forced opening tool |
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| CN (1) | CN214499003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508975A (en) * | 2022-02-15 | 2022-05-17 | 南京理工大学 | Fuse rigid safety inertial motion mechanism capable of reducing friction influence of shearing section |
-
2020
- 2020-12-04 CN CN202022910540.7U patent/CN214499003U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508975A (en) * | 2022-02-15 | 2022-05-17 | 南京理工大学 | Fuse rigid safety inertial motion mechanism capable of reducing friction influence of shearing section |
| CN114508975B (en) * | 2022-02-15 | 2023-10-13 | 南京理工大学 | Fuse rigid safety inertial motion mechanism for reducing friction influence of shearing section |
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