CN216588532U - Coiled tubing duplex blowout prevention box - Google Patents
Coiled tubing duplex blowout prevention box Download PDFInfo
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- CN216588532U CN216588532U CN202220110536.9U CN202220110536U CN216588532U CN 216588532 U CN216588532 U CN 216588532U CN 202220110536 U CN202220110536 U CN 202220110536U CN 216588532 U CN216588532 U CN 216588532U
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- packing
- side door
- piston
- hydraulic control
- hydraulic cylinder
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- 230000002265 prevention Effects 0.000 title claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 132
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 230000006835 compression Effects 0.000 claims description 40
- 238000007906 compression Methods 0.000 claims description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 5
- 230000006978 adaptation Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000227287 Elliottia pyroliflora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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Abstract
The utility model discloses a coiled tubing duplex blowout prevention box, which comprises a lower packing mechanism and an upper packing mechanism which operate independently, wherein the lower packing mechanism and the upper packing mechanism are connected through a stud; the lower packing mechanism comprises a lower packing, and a lower driving mechanism and a lower replacing mechanism are arranged on the lower packing; go up packing root mechanism and include the packing, be provided with on the packing and be provided with actuating mechanism and change the mechanism on with, through setting up two sets of lower packing root mechanisms and the last packing root mechanism of independent operation, can use one of them set of packing to seal up the operation in normal operation, then launch another set of packing to seal up the operation when it appears wearing and tearing can't seal up, change the packing of wearing and tearing simultaneously, adaptation ultra-deep high-pressure oil gas well operation that it can be better, under the sealed condition that loses efficacy of a set of packing, need not the stop operation only need launch another set of packing seal can, the operation is more efficient.
Description
Technical Field
The utility model relates to an oil pipe operation technical field especially relates to a box is prevented spouting by coiled tubing pair.
Background
In the current coiled tubing operation process, the blowout prevention box is an indispensable well control device. The coiled tubing packing device has the advantages that when the coiled tubing enters and exits an oil-gas well, an annular sealing space is formed by compressing the packing through the hydraulic cylinder, so that the well pressure and the atmospheric pressure are isolated, and high-pressure media in the well are prevented from being released to the external environment.
Along with the development of technology, the well drilling degree of depth of oil gas well is more and more dark, and the internal pressure is also more and more high, and traditional single gang prevents spouting the box when the operation of ultra-deep high pressure oil gas well, because only a packing, if the packing wearing and tearing became invalid, will bring huge safety risk for the operation production. The single-unit blowout prevention box often cannot meet the operation requirement of one well due to the short service life of the packing. When the packing is worn, the blowout prevention box needs to be detached during operation so as to replace the packing, the danger of the operation is increased inevitably in the replacement process due to the high pressure in an oil well and a gas well, and the work efficiency of the coiled tubing is reduced due to the delayed time for replacing the packing.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect or not, the utility model aims to provide a box is prevented spouting in coiled tubing pair is formed by the sealed packing set of two sets of independent functions, uses one of them set of packing to seal up the operation in the normal operation, then launches another set of packing to seal up the operation when it appears wearing and tearing can't seal up, changes the packing of wearing and tearing simultaneously.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a duplex blowout prevention box for a continuous oil pipe comprises a lower packing mechanism and an upper packing mechanism which operate independently, wherein the lower packing mechanism and the upper packing mechanism are connected through a stud; the lower packing mechanism comprises a lower packing, and a lower driving mechanism and a lower replacing mechanism are arranged on the lower packing; the upper packing mechanism comprises an upper packing, and an upper driving mechanism and an upper replacing mechanism are arranged on the packing.
The lower drive mechanism includes: the packing device comprises a lower joint, a lower hydraulic cylinder and a lower compression piston, wherein a lower packing is arranged at the moving end of the lower hydraulic cylinder, the lower packing is arranged at one end of the lower compression piston, and the lower joint is arranged at the other end of the lower compression piston; the lower packing compression hydraulic control port is formed in the lower joint, the lower packing release hydraulic control port is formed in the lower hydraulic cylinder, the lower packing compression hydraulic control port is matched with the lower packing release hydraulic control port, and the lower packing is pressed and unsealed.
And the lower joint is fixedly connected with the lower cylinder through a gland.
The lower replacement mechanism includes: the lower side door piston is sleeved outside the lower packing, and the end part of the lower side door piston is arranged between the lower hydraulic cylinder and the lower compression piston; the lower hydraulic cylinder is characterized in that a lower flange is mounted on the outer wall of the end portion of the lower hydraulic cylinder, a lower side door opening hydraulic control port is formed in the lower flange, a lower side door closing hydraulic control port communicated with a cavity of the lower hydraulic cylinder is formed in the lower hydraulic cylinder, the lower side door opening hydraulic control port is matched with the lower side door closing hydraulic control port, and a lower side door piston is opened and closed.
Install rotatable side door on the double-screw bolt, the side door protects the side door piston down, when the side door was closed, then can't open the side door piston.
The upper drive mechanism includes: a middle flange, an upper compression piston, and a baffle; an upper compression piston is installed in the middle flange, one end in the upper compression piston is connected with the lower disc root, and the other end in the upper compression piston is connected with the upper disc root; and the middle flange is provided with an upper packing root compression hydraulic control port and an upper packing root release hydraulic control port for applying pressure and deblocking the upper packing.
The upper replacement mechanism includes: the upper side door piston is sleeved on the upper packing and is arranged on the baffle plate, an upper flange is arranged on the outer wall of the top of the upper side door piston, an upper hydraulic cylinder is arranged in the upper flange, and a cylinder body is arranged in the upper hydraulic cylinder; the upper flange is provided with an upper side door opening hydraulic control opening communicated with the upper side door piston cavity, the upper hydraulic cylinder is provided with an upper side door closing hydraulic control opening communicated with the upper hydraulic cylinder cavity, and the upper side door piston is opened and closed by applying hydraulic control force.
The upper flange is connected with the middle flange through a stud.
A top copper sleeve is installed in the cylinder body, and a pressing cap is installed at the end of the top copper sleeve.
The upper packing is sleeved with a lower copper sleeve, and the upper packing is sleeved with an upper copper sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a box is prevented spouting in coiled tubing pair, lower packing mechanism and hanging wall root mechanism through setting up two sets of independent operation, can use one of them set of packing to seal up the operation in normal operation, then launch another set of packing to seal up the operation when it appears wearing and tearing can't seal up, change the packing of wearing and tearing simultaneously, adaptation ultra-deep high-pressure oil gas well operation that it can be better, under the sealed condition that becomes invalid of a set of packing, do not need the shut down operation only to launch another set of packing seal up can, the operation is more efficient.
Drawings
FIG. 1 is a schematic structural diagram of a coiled tubing duplex blowout preventer of the present invention.
FIG. 2 is a side door schematic of the present invention.
In the figure: 1. a lower joint; 2. a lower compression piston; 3. a gland; 4. discharging the liquid cylinder; 5. a lower flange; 6. a lower side gate piston; 7. a copper bush is arranged; 8. a lower packing; 9. a side door; 10. a stud; 11. a middle flange; 12. an upper compression piston; 13. a baffle plate; 14. an upper side gate piston; 15. mounting a packing; 16. mounting a copper sleeve; 17. an upper flange; 18. feeding a liquid cylinder; 19. a barrel; 20. jacking a copper sleeve; 21. pressing the cap; 1-1, a lower packing compression liquid control port; 4-1, a lower root release hydraulic control port; 4-2, closing the hydraulic control port by the lower side door; 5-1, opening a hydraulic control port on the lower side door; 11-2, an upper disc root release hydraulic control port; 11-2, an upper disc root compression liquid control port; 17-1, opening a hydraulic control port on the upper side door; 18-1, closing the upper side door to control the liquid opening.
Detailed Description
The present invention will be described in detail with reference to the drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the utility model provides a coiled tubing duplex blowout prevention box, which comprises a lower packing mechanism and an upper packing mechanism which operate independently, wherein the lower packing mechanism and the upper packing mechanism are connected through a stud 10; the lower packing mechanism comprises a lower packing 8, and a lower driving mechanism and a lower replacing mechanism are arranged on the lower packing 8; the upper packing mechanism comprises an upper packing 15, and an upper driving mechanism and an upper replacing mechanism are arranged on the packing 15.
Specifically, the lower driving mechanism includes: the lower packing 8 is arranged at the moving end of the lower hydraulic cylinder 4, the lower packing 8 is arranged at one end of the lower compression piston 2, and the lower joint 1 is arranged at the other end of the lower compression piston 2; the lower joint 1 is provided with a lower packing compression hydraulic control port 1-1, the lower hydraulic cylinder 4 is provided with a lower packing release hydraulic control port 4-1, and the lower packing compression hydraulic control port 1-1 is matched with the lower packing release hydraulic control port 4-1 to apply pressure and release the lower packing 8.
In this embodiment, the lower joint 1, the lower hydraulic cylinder 4 and the lower compression piston 2 form a driving part of the lower packing 8, the lower packing 8 can be compressed by applying hydraulic control force through the lower packing compression hydraulic control port 1-1 on the lower joint 1 to complete dynamic sealing of the coiled tubing, and the lower packing release hydraulic control port 4-1 on the lower hydraulic cylinder 4 applies hydraulic control force to unseal the lower packing 8. The lower joint 1 and the lower cylinder 4 are connected into a whole through the gland 3 and the screw.
Specifically, the lower replacement mechanism includes: the lower side door piston 6 is sleeved outside the lower packing 8, and the end part of the lower side door piston 6 is arranged between the lower hydraulic cylinder 4 and the lower compression piston 2; the lower hydraulic cylinder 4 is characterized in that a lower flange 5 is mounted on the outer wall of the end portion of the lower hydraulic cylinder 4, a lower side door opening hydraulic control port 5-1 is formed in the lower flange 5, a lower side door closing hydraulic control port 4-2 communicated with the cavity of the lower hydraulic cylinder 4 is formed in the lower hydraulic cylinder 4, the lower side door opening hydraulic control port 5-1 is matched with the lower side door closing hydraulic control port 4-2, and a lower side door piston 6 is opened and closed. Install rotatable side door 9 on the double-screw bolt 10, side door 9 protects lower side door piston 6, when side door 9 closed, then can't open side door piston 6.
The embodiment of the utility model provides an in, packing 8's change part under lower hydro-cylinder 4, lower flange 5, lower side door piston 6, side door 9 are constituteed, open hydraulic control mouth 5-1 through the lower side door on lower flange 5 and apply the hydraulic control power and can open lower side door piston 6 and carry out down the change of packing 8, close hydraulic control mouth 4-1 through the lower side door on lower hydro-cylinder 4 and apply the hydraulic control power and can close lower side door piston 6. The side door 9 rotates on the stud 10 to protect the lower side door piston 6, and when the side door 9 is closed, the side door piston 6 cannot be opened.
In addition, the upper drive mechanism includes: a middle flange 11, an upper compression piston 12, and a baffle 13; an upper compression piston 12 is installed in the middle flange 11, one end of the upper compression piston 12 is connected with the lower packing 8, and the other end of the upper compression piston is connected with the upper packing 15; the middle flange 11 is provided with an upper packing compression hydraulic control port 11-1 and an upper packing release hydraulic control port 11-2, and the upper packing 15 is pressurized and unsealed.
The middle flange 11, the upper compression piston 12 and the baffle 13 form a driving part of the upper packing 15, the upper packing 15 can be compressed by applying a hydraulic control force through the upper packing compression hydraulic control port 11-1 on the middle flange 11 to complete dynamic sealing of the continuous oil pipe, and the upper packing 15 is unsealed by applying the hydraulic control force through the upper packing release hydraulic control port 11-2 on the middle flange 11.
The upper replacement mechanism includes: an upper side door piston 14 sleeved on an upper packing 15, wherein the upper side door piston 14 is installed on a baffle 13, an upper flange 17 is installed on the outer wall of the top of the upper side door piston 14, an upper hydraulic cylinder 18 is installed in the upper flange 17, and a cylinder 19 is installed in the upper hydraulic cylinder 18; the upper flange 17 is provided with an upper side door opening hydraulic control port 17-1 communicated with the cavity of the upper side door piston 14, the upper hydraulic cylinder 18 is provided with an upper side door closing hydraulic control port 18-1 communicated with the cavity of the upper hydraulic cylinder 18, and the upper side door piston 14 is opened and closed by applying hydraulic control force. The upper flanges 17 are connected between the middle flanges 11 through the studs 10.
The upper flange 17, the upper hydraulic cylinder 18, the cylinder 19, the upper side door piston 14 and the side door 9 form a replacing part of the upper packing 15, the upper side door piston 14 can be opened to replace the upper packing 15 by opening the upper side door on the upper flange 17 through a hydraulic control opening 17-1 and applying hydraulic control force, and the upper side door piston 14 can be closed by closing the hydraulic control opening 18-1 on the upper hydraulic cylinder 18 through the hydraulic control force.
Further preferably, the upper flange 17, the middle flange 11 and the lower flange 5 are connected into a whole by the studs 10.
The cylinder 19 is also provided with a top copper sleeve 20, the top copper sleeve 20 has a function of righting the coiled tubing, and the pressing cap 21 is connected with the cylinder 19 through the hanging table and presses the top copper sleeve 20.
The upper copper sleeve 16 and the lower copper sleeve 7 are respectively arranged at two ends of the packing 8 and 15 and play a role in protecting the packing 8 and 15.
The utility model discloses the box is prevented spouting in coiled tubing pair, its adaptation ultra-deep high pressure oil gas well operation that can be better, under the sealed condition that becomes invalid of a set of packing, need not the stop work only start another set of packing seal can, the operation is more high-efficient.
It should be apparent to those skilled in the art that the above embodiments are only preferred embodiments of the present invention, and therefore, the modifications and changes that can be made by those skilled in the art to some parts of the present invention still embody the principles of the present invention, and the objects of the present invention are achieved, all falling within the scope of the present invention.
Claims (10)
1. A coiled tubing duplex blowout prevention box is characterized by comprising a lower packing mechanism and an upper packing mechanism which operate independently, wherein the lower packing mechanism and the upper packing mechanism are connected through a stud (10); the lower packing mechanism comprises a lower packing (8), and a lower driving mechanism and a lower replacing mechanism are arranged on the lower packing (8); the upper packing mechanism comprises an upper packing (15), and an upper driving mechanism and an upper replacing mechanism are arranged on the packing (15).
2. The coiled tubing duplex blowout preventer of claim 1, wherein the lower drive mechanism comprises: the packing device comprises a lower joint (1), a lower hydraulic cylinder (4) and a lower compression piston (2), wherein the lower packing (8) is arranged at the moving end of the lower hydraulic cylinder (4), the lower packing (8) is arranged at one end of the lower compression piston (2), and the lower joint (1) is arranged at the other end of the lower compression piston (2); the lower packing compression hydraulic control port (1-1) is formed in the lower joint (1), the lower packing release hydraulic control port (4-1) is formed in the lower hydraulic cylinder (4), the lower packing compression hydraulic control port (1-1) is matched with the lower packing release hydraulic control port (4-1), and the lower packing (8) is pressurized and unsealed.
3. The coiled tubing duplex blowout preventer cartridge according to claim 2, wherein the lower joint (1) and the lower hydraulic cylinder (4) are fixedly connected through a gland (3).
4. The coiled tubing duplex blowout preventer of claim 2, wherein the lower replacement mechanism comprises: the lower side door piston (6) is sleeved outside the lower packing (8), and the end part of the lower side door piston (6) is arranged between the lower hydraulic cylinder (4) and the lower compression piston (2); lower flange (5) are installed to lower hydraulic cylinder (4) tip outer wall, seted up down side door on lower flange (5) and opened hydraulic control mouth (5-1), set up down the side door that is linked together with lower hydraulic cylinder (4) cavity on hydraulic cylinder (4) and close hydraulic control mouth (4-2), the side door is opened hydraulic control mouth (5-1) down and is closed hydraulic control mouth (4-2) and cooperate down, opens and close lower side door piston (6).
5. The coiled tubing duplex blowout preventer cartridge according to claim 4, wherein the stud (10) is provided with a rotatable side door (9), the side door (9) protects the lower side door piston (6), and when the side door (9) is closed, the lower side door piston (6) cannot be opened.
6. The coiled tubing duplex blowout preventer of claim 1, wherein the upper drive mechanism comprises: a middle flange (11), an upper compression piston (12), and a baffle (13); an upper compression piston (12) is installed in the middle flange (11), one end of the upper compression piston (12) is connected with a lower packing (8), and the other end of the upper compression piston is connected with an upper packing (15); an upper packing compression hydraulic control port (11-1) and an upper packing release hydraulic control port (11-2) are formed in the middle flange (11) and used for applying pressure and releasing the upper packing (15).
7. The coiled tubing duplex blowout preventer of claim 6, wherein the upper replacement mechanism comprises: an upper side door piston (14) sleeved on the upper packing (15), wherein the upper side door piston (14) is installed on the baffle plate (13), an upper flange (17) is installed on the outer wall of the top of the upper side door piston (14), an upper hydraulic cylinder (18) is installed in the upper flange (17), and a cylinder body (19) is installed in the upper hydraulic cylinder (18); the upper flange (17) is provided with an upper side door opening hydraulic control port (17-1) communicated with the cavity of the upper side door piston (14), the upper hydraulic cylinder (18) is provided with an upper side door closing hydraulic control port (18-1) communicated with the cavity of the upper hydraulic cylinder (18), and the upper side door piston (14) is opened and closed by applying hydraulic control force.
8. The coiled tubing duplex blowout preventer cartridge according to claim 7, wherein the upper flange (17) is connected between the middle flanges (11) by means of studs (10).
9. The coiled tubing duplex blowout prevention box according to claim 7, wherein a top copper sleeve (20) is installed in the barrel (19), and a pressing cap (21) is installed at the end of the top copper sleeve (20).
10. The coiled tubing duplex blowout prevention box according to claim 1, wherein the lower packing (8) is sleeved with a lower copper sleeve (7), and the upper packing (15) is sleeved with an upper copper sleeve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220110536.9U CN216588532U (en) | 2022-01-17 | 2022-01-17 | Coiled tubing duplex blowout prevention box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220110536.9U CN216588532U (en) | 2022-01-17 | 2022-01-17 | Coiled tubing duplex blowout prevention box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216588532U true CN216588532U (en) | 2022-05-24 |
Family
ID=81636005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220110536.9U Active CN216588532U (en) | 2022-01-17 | 2022-01-17 | Coiled tubing duplex blowout prevention box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216588532U (en) |
-
2022
- 2022-01-17 CN CN202220110536.9U patent/CN216588532U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 721306 Gaoxin 19 Road, Baoji high tech Development Zone, Shaanxi Province Patentee after: Baoji Saifu Petroleum Machinery Co.,Ltd. Country or region after: China Address before: 721306 Gaoxin 19 Road, Baoji high tech Development Zone, Shaanxi Province Patentee before: BAOJI SAFE PETROLEUM MACHINERY Co.,Ltd. Country or region before: China |