CN220828239U - Up-pressing well control blowout preventer - Google Patents
Up-pressing well control blowout preventer Download PDFInfo
- Publication number
- CN220828239U CN220828239U CN202322411253.5U CN202322411253U CN220828239U CN 220828239 U CN220828239 U CN 220828239U CN 202322411253 U CN202322411253 U CN 202322411253U CN 220828239 U CN220828239 U CN 220828239U
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- CN
- China
- Prior art keywords
- rubber cylinder
- pull rod
- blowout preventer
- rubber
- flat
- Prior art date
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Links
- 238000003825 pressing Methods 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 29
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model belongs to the technical field of oilfield production equipment, and particularly relates to an up-pressing well control blowout preventer, which comprises a hanger, a central pull rod, a bowl-shaped rubber cylinder, a plurality of flat rubber cylinders, rubber cylinder end caps and a counterweight joint, wherein the central pull rod is arranged on the hanger; the hanger is in threaded connection with the upper end of the center pull rod, the bowl-shaped rubber cylinder and the plurality of flat-type rubber cylinders are sequentially sleeved on the lower portion of the center pull rod, the rubber cylinder end cap is arranged at the bottom end of the lowest flat-type rubber cylinder, the rubber cylinder end cap is in threaded connection with the center pull rod, and the counterweight joint is arranged at the bottom end of the center pull rod through threads. The well sealing device is fixed in a mode that the well sealing device is hung in the four-way sleeve, the sealing rubber cylinder is self-compressed through hydraulic pressure, and the well sealing pressure of the well sealing device rubber cylinder is automatically increased along with the increase of the pressure. Simple structure, safety, environmental protection, economy and applicability.
Description
Technical Field
The utility model belongs to the technical field of oilfield production equipment, and particularly relates to an up-pressing type well control blowout preventer.
Background
The existing rotary compression sealing rubber cylinder has poor well sealing effect and complex structure, and in order to improve the well sealing effect, it is necessary to design an up-pressing well control blowout preventer which is simple in structure and safe and reliable.
Disclosure of utility model
The utility model aims to provide an up-pressure well control blowout preventer which is simple in structure, safe and reliable, the blowout preventer is fixed in a mode that the blowout preventer is suspended in a sleeve four-way joint, a sealing rubber cylinder is subjected to self-compression through hydraulic pressing, then a well is sealed, and along with the rising of pressure, the well sealing pressure of the blowout preventer rubber cylinder is also automatically increased. Simple structure, safety, environmental protection, economy and applicability.
The utility model adopts the technical scheme that: an up-pressing well control blowout preventer comprises a hanger, a central pull rod, bowl-shaped rubber cylinders, a plurality of flat rubber cylinders, rubber cylinder end caps and a counterweight joint; the hanger is in threaded connection with the upper end of the center pull rod, the bowl-shaped rubber cylinder and the plurality of flat rubber cylinders are sequentially sleeved on the lower portion of the center pull rod, the rubber cylinder end cap is arranged at the bottom end of the flat rubber cylinder at the lowest position, the rubber cylinder end cap is in threaded connection with the center pull rod, and the counterweight joint is arranged at the bottom end of the center pull rod through threads.
Further, the number of the flat type rubber barrels is 2-6.
Further, the number of the flat type rubber barrels is 3.
Further, the number of the flat type rubber barrels is 4.
Further, the number of the flat type rubber barrels is 5.
The utility model has the beneficial effects that: the up-pressure well control blowout preventer has the advantages that the structure is simple, the safety and the reliability are realized, the blowout preventer is fixed in a mode that the blowout preventer is hung in a sleeve four-way joint, the blowout preventer cannot move downwards due to the hydraulic action, and the blowout preventer is more reliable than the conventional anchoring teeth. The sealing rubber cylinder is self-compressed by the hydraulic pressure, and then the well is sealed, and along with the rising of the pressure, the well sealing pressure of the sealing rubber cylinder of the well sealer is also automatically increased. The sealing rubber cylinder of the blowout preventer is tightly attached to the inner wall of the sleeve after being compressed by hydraulic pressing, and the sealing force of the rubber cylinder is larger as the pressure is larger, so that the sealing is simpler and more reliable than the sealing by rotating and compressing the sealing rubber cylinder conventionally. Simple structure, safety, environmental protection, economy and applicability.
Drawings
Fig. 1 is a schematic structural view of the first embodiment.
Detailed Description
Examples
Referring to fig. 1, an up-press well control blowout preventer comprises a hanger 1, a central pull rod 2, a bowl-type rubber cylinder 3, a plurality of flat rubber cylinders 4, rubber cylinder end caps 5 and a counterweight joint 6; the hanger 1 is in threaded connection with the upper end of the central pull rod 2, the bowl-shaped rubber cylinder 3 and the plurality of flat rubber cylinders 4 are sequentially sleeved on the lower portion of the central pull rod 2, the rubber cylinder end caps 5 are arranged at the bottom ends of the lowest flat rubber cylinders 4, the rubber cylinder end caps 5 are in threaded connection with the central pull rod 2, and the counterweight joints 6 are arranged at the bottom ends of the central pull rod 2 through threads, wherein the number of the flat rubber cylinders 4 is 3.
Before the blowout preventer is applied to oil well operation, the blowout preventer is applied to tools above wellhead flanges for anti-leakage and strength pressing test work. When the up-pressure well control blowout preventer works, high-pressure liquid pumped by the ground pressurizing pump makes the bowl-shaped rubber cylinder capable of self-sealing move downwards and then compresses the lower flat rubber cylinder, so that the outer circle of the flat rubber cylinder is tightly attached to the inner wall of the sleeve to achieve sealing, and the sealing force of the rubber cylinder is increased along with the increase of the pressure of the pumped liquid.
When in use, the lower end of the lifting short circuit is connected with the upper end of the blowout preventer; putting the well sealer connected to the four-way joint of the test device sleeve; removing the lifting short circuit; the tool sleeve bolt to be detected is fixed on the sleeve four-way joint; connecting a high-pressure pump rubber tube at the joint of the liquid inlet hole; starting a high-pressure pump, filling high-pressure liquid into the four-way joint through a high-pressure pipe, and monitoring the reading of a pressure gauge of the high-pressure pump at any time in the pressurizing process; before the detected tool is dismounted, the high-pressure pump switch is opened to discharge the high-pressure liquid in the test device, and after no pressure in the test device is confirmed, the detected tool is dismounted. The well plugging device is fixed in a mode that the well plugging device is hung in the four-way sleeve, so that the well plugging device cannot move downwards due to the hydraulic action and is more reliable than the conventional anchoring teeth. The sealing rubber cylinder is self-compressed by the hydraulic pressure, and then the well is sealed, and along with the rising of the pressure, the well sealing pressure of the sealing rubber cylinder of the well sealer is also automatically increased. The sealing rubber cylinder of the blowout preventer is tightly attached to the inner wall of the sleeve after being compressed by hydraulic pressing, and the sealing force of the rubber cylinder is larger as the pressure is larger, so that the sealing is simpler and more reliable than the sealing by rotating and compressing the sealing rubber cylinder conventionally. Simple structure, safety, environmental protection, economy and applicability.
Claims (5)
1. An up-press well control blowout preventer, which is characterized in that: the well plugging device comprises a hanger (1), a central pull rod (2), bowl-shaped rubber barrels (3), a plurality of flat rubber barrels (4), rubber barrel end caps (5) and a counterweight joint (6); the hanger (1) is in threaded connection with the upper end of the central pull rod (2), the bowl-shaped rubber cylinder (3) and the plurality of flat rubber cylinders (4) are sequentially sleeved on the lower portion of the central pull rod (2), the rubber cylinder end caps (5) are arranged at the bottom ends of the flat rubber cylinders (4) at the lowest positions, the rubber cylinder end caps (5) are in threaded connection with the central pull rod (2), and the counterweight joint (6) is arranged at the bottom ends of the central pull rod (2) through threads.
2. An up-pressure well control blowout preventer according to claim 1, wherein: the number of the flat rubber barrels (4) is 2-6.
3. An up-pressure well control blowout preventer according to claim 2, wherein: the number of the flat rubber barrels (4) is 3.
4. An up-pressure well control blowout preventer according to claim 2, wherein: the number of the flat rubber barrels (4) is 4.
5. An up-pressure well control blowout preventer according to claim 2, wherein: the number of the flat rubber barrels (4) is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322411253.5U CN220828239U (en) | 2023-09-06 | 2023-09-06 | Up-pressing well control blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322411253.5U CN220828239U (en) | 2023-09-06 | 2023-09-06 | Up-pressing well control blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220828239U true CN220828239U (en) | 2024-04-23 |
Family
ID=90724537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322411253.5U Active CN220828239U (en) | 2023-09-06 | 2023-09-06 | Up-pressing well control blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220828239U (en) |
-
2023
- 2023-09-06 CN CN202322411253.5U patent/CN220828239U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |