CN213391993U - Cutting device for high-pressure water crushing seabed covering cement layer - Google Patents
Cutting device for high-pressure water crushing seabed covering cement layer Download PDFInfo
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- CN213391993U CN213391993U CN202022409439.3U CN202022409439U CN213391993U CN 213391993 U CN213391993 U CN 213391993U CN 202022409439 U CN202022409439 U CN 202022409439U CN 213391993 U CN213391993 U CN 213391993U
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Abstract
The utility model provides a cutting device for crushing a cement layer covered on the seabed by high-pressure water, wherein a lifting ring is arranged at the top of a frame and is connected with a crane; the bottom of the rack is disc-shaped, nozzles are uniformly distributed on the circumference of the bottom of the rack, the nozzles are connected with one end of a hose, and the other end of the hose is connected with a high-pressure abrasive mixer; has the advantages that: the utility model has simple operation, high efficiency and low cost; the modular design is adopted, and the combination is arbitrary according to different working conditions; through fluid mechanics analysis and field test, the high-pressure water cutting crushing capacity is higher than the yield strength of a cement covering layer and lower than a steel pipe, and the high-pressure water cutting crushing capacity has no influence on a lodging oil well and a well body structure.
Description
Technical Field
The utility model belongs to the technical field of the construction equipment and specifically relates to a cutting device on broken seabed cover cement layer of water under high pressure.
Background
Because of the collapse of the oil extraction wellhead of the oil extraction platform in extreme weather such as typhoon, storm surge and the like, the wellhead casing pipe is damaged or falls off, the emergency measure is adopted to temporarily plug the wellhead, and partial area is covered by a cement layer. Because the early temporary disposal measure of the lodging well of the well group has the property of emergency rescue, the plugging of a hydrocarbon reservoir is not carried out, the cutting of a well mouth is not carried out 4 meters below the mud surface, the requirements of the existing 'fine rules for marine oil safety management' 85 th article on the plugging of the hydrocarbon reservoir of the permanent abandoned well are not met, the requirements of the current time and the current laws and regulations are not met, and the lodging well group needs to be subjected to well sealing treatment again.
And (4) the well is sealed again, the cement hard layer of the lodging oil well needs to be dismantled, and the lodging well mouth is exposed to carry out underwater cutting so as to realize permanent plugging. How to break the cement hard layer does not damage the lodging well head, and mechanical damage to the original lodging well head is easily caused by mechanical dynamic compaction and breaking removal.
Disclosure of Invention
An object of the utility model is to solve prior art not enough, and provide a cutting device on broken seabed cover cement layer of water under high pressure.
The utility model discloses new technical scheme is: a cutting device for crushing a cement layer covered on the seabed by high-pressure water comprises a nozzle, a rack, a lifting ring and a hose, wherein the lifting ring is installed at the top of the rack and is connected with a crane; the grinding machine is characterized in that the bottom of the machine frame is disc-shaped, nozzles are uniformly distributed on the circumference of the bottom of the machine frame, the nozzles are connected with one end of a hose, and the other end of the hose is connected with a high-pressure grinding material mixer.
The number of the nozzles is 13.
The nozzle is a high-pressure nozzle.
The rings are 2.
The hose is a high-pressure hose.
The utility model has the advantages that: the utility model has simple operation, high efficiency and low cost; the modular design is adopted, and the combination is arbitrary according to different working conditions; through fluid mechanics analysis and field test, the high-pressure water cutting crushing capacity is higher than the yield strength of a cement covering layer and lower than a steel pipe, and the high-pressure water cutting crushing capacity has no influence on a lodging oil well and a well body structure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the bottom of the present invention.
Wherein: 1. nozzle, 2, frame, 3, rings, 4, hose.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A cutting device for crushing a cement layer covered on the seabed by high-pressure water comprises a nozzle 1, a rack 2, a lifting ring 3 and a hose 4, wherein the lifting ring 3 is installed at the top of the rack 2, and the lifting ring 3 is connected with a crane; the bottom of the frame 2 is disc-shaped, nozzles 1 are uniformly distributed on the circumference of the bottom of the frame 2, the nozzles 1 are connected with one end of a hose 4, and the other end of the hose 4 is connected with a high-pressure abrasive mixer.
The number of the nozzles 1 is 13.
The nozzle 1 is a high-pressure nozzle.
The number of the lifting rings 3 is 2.
The hose 4 is a high-pressure hose.
Claims (5)
1. The utility model provides a cutting device on broken seabed of high pressure water cover cement layer, includes nozzle (1), frame (2), rings (3) and hose (4), its characterized in that: a hanging ring (3) is installed at the top of the rack (2), and the hanging ring (3) is connected with a crane; the grinding machine is characterized in that the bottom of the rack (2) is disc-shaped, nozzles (1) are evenly distributed on the circumference of the bottom of the rack (2), the nozzles (1) are connected with one end of a hose (4), and the other end of the hose (4) is connected with a high-pressure grinding material mixer.
2. The cutting device for high-pressure water breaking of a cement sheath on the sea bottom according to claim 1, characterized in that: the number of the nozzles (1) is 13.
3. The cutting apparatus for high pressure water breaking of a cement sheath on the sea bottom according to claim 1 or 2, wherein: the nozzle (1) is a high-pressure nozzle.
4. The cutting device for high-pressure water breaking of a cement sheath on the sea bottom according to claim 1, characterized in that: the number of the lifting rings (3) is 2.
5. The cutting device for high-pressure water breaking of a cement sheath on the sea bottom according to claim 1, characterized in that: the hose (4) is a high-pressure hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022409439.3U CN213391993U (en) | 2020-10-27 | 2020-10-27 | Cutting device for high-pressure water crushing seabed covering cement layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022409439.3U CN213391993U (en) | 2020-10-27 | 2020-10-27 | Cutting device for high-pressure water crushing seabed covering cement layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213391993U true CN213391993U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022409439.3U Active CN213391993U (en) | 2020-10-27 | 2020-10-27 | Cutting device for high-pressure water crushing seabed covering cement layer |
Country Status (1)
| Country | Link |
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| CN (1) | CN213391993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110912A (en) * | 2022-08-01 | 2022-09-27 | 中国海洋大学 | Construction device for offshore oil well sealing and working method thereof |
-
2020
- 2020-10-27 CN CN202022409439.3U patent/CN213391993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110912A (en) * | 2022-08-01 | 2022-09-27 | 中国海洋大学 | Construction device for offshore oil well sealing and working method thereof |
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