CN201872917U - Major safety device for anti-impact protection of offshore wellhead platform - Google Patents
Major safety device for anti-impact protection of offshore wellhead platform Download PDFInfo
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- CN201872917U CN201872917U CN201020601987XU CN201020601987U CN201872917U CN 201872917 U CN201872917 U CN 201872917U CN 201020601987X U CN201020601987X U CN 201020601987XU CN 201020601987 U CN201020601987 U CN 201020601987U CN 201872917 U CN201872917 U CN 201872917U
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- wellhead platform
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- safety device
- valve
- anticollision
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- 239000012530 fluid Substances 0.000 claims description 36
- 210000001503 joint Anatomy 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 39
- 238000003032 molecular docking Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003653 coastal water Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a major safety device for the anti-impact protection of an offshore wellhead platform. The device comprises a hydraulic pump station, a buffering unit, a reversing control unit, an anti-impact oil cylinder, a controller, a butt block, a support block and a fixing block, and adopts the main connection manner that a P port of a two-position two-way reversing valve in the buffering unit is directly connected with a rodless cavity of the anti-impact oil cylinder through a hydraulic pipeline. Through the technology that the proportional pressure of an anti-impact oil cylinder piston rod is controlled and shrunken in a real-time manner, the impact force on the offshore wellhead platform is stably transformed (i.e. one part is used for compressing gas inside a high-pressure gas bottle, and the other part is depleted as the pressure overflow of a proportional valve), so as to eliminate the potential safety hazards in the present operation and first-aid repair of the offshore wellhead platform, realize the impact-free butt connection of a large offshore operation platform and a small wellhead platform, and avoid the heavy loss caused by the collapse of the wellhead platform, as well as the marine environment pollution due to petroleum leakage arising from such collapse.
Description
Technical field
What the utility model patent related to is the great safety device that is used for offshore wellhead platform anticollision protection, belongs to mechanical field.
Background technology
Offshore platform, when boats and ships bump, will serious threat personnel life security, cause any property loss and catastrophic failure such as environmental pollution, for example, on June 27th, 2005, the BHN of state Indian Oil Corp platform causes platform blast back damage because of supply boat accident collision standpipe; For another example, evenings 10 on April 20th, 2010 point, BP BP company just blasts at " the deep water ground line " of U.S.'s Gulf of Mexico operation number semi-submersible drilling unit, the sinking of 36 hours rear platforms.This incident not only causes 11 life death, and the seabed crude oil leakage, forms the large tracts of land gross pollution, leads to rare environmental disaster." deep water ground line " drilling platform cost in the incident is about 3.5 hundred million dollars, but accident causes BP company market value to shrink exceedes 70,000,000,000 dollars, also will pay the compensation expense of over ten billion dollar in addition, and lesson is not deep, for BP company, this is a tremendous loss beyond doubt.But current incident also will comprise that the oil play of China sounds the alarm-" on production link, must ensure safety " to the whole world, stop each link dangerous situation and take place, and prevent trouble before it happens.Thus; according to the potential safety hazard that exists in the operation of present offshore wellhead platform, the repairing process-" when large ocean job platform and small-sized wellhead platform move and dock; wind-engaging, wave, ocean current and boats and ships are controlled error or the like factor affecting; the latter suffers the former huge impact easily; cause cover, major safety problems such as oil blowout leakage ", a kind of great safety device that is used for offshore wellhead platform anticollision protection has been proposed.
The utility model is just for solving the major safety risks problem design-calculated that above-mentioned offshore wellhead platform exists; purpose is to eliminate safe hidden trouble; avoid covering because of wellhead platform; heavy economic losses that is caused and Oil spills are to the pollution of marine environment, for offshore oil development provides a kind of effective failure-free safety guard.
The utility model content
The technical matters that the utility model patent will solve provides a kind of great safety device that is used for offshore wellhead platform anticollision protection; this device can thoroughly solve the large ocean job platform and small-sized wellhead platform moves in the docking operation; there is the serious safety problem of being clashed into threat in the latter; the generation of the accident that provides against hidden trouble; realize the operation of offshore wellhead platform safety, the purpose of the utility model patent is the device that provides a kind of safe and reliable wellhead platform anticollision to protect for the offshore oil development industry.
For addressing the above problem, the utility model patent is achieved in that the utility model patent mainly comprises hydraulic power unit, buffer cell, commutation control unit, anticollision oil cylinder, controller, butt joint piece, back-up block and fixed block; One of its feature is by conduit under fluid pressure, and in buffer cell, the P mouth of two two logical change-over valves directly is connected with the rodless cavity of anticollision oil cylinder; Two of its feature is in hydraulic power unit, by conduit under fluid pressure, the suction inlet of electric hydraulic pump directly is connected with fuel tank with after the suction inlet of hydraulic hand-pump is in parallel, and the electric hydaulic delivery side of pump is connected with big one way stop peturn valve, and the hand-hydraulic delivery side of pump is connected with little one way stop peturn valve; Three of its feature is in hydraulic power unit, and by shutoff valve, big one way stop peturn valve is connected with little one way stop peturn valve; Four of its feature is in hydraulic power unit, and by conduit under fluid pressure, on the electric hydraulic pump export pipeline, the outlet of big one way stop peturn valve is connected to a safety valve, is connected with the P mouth of three position four-way directional control valve in the commutation control unit simultaneously; Five of its feature is in hydraulic power unit, and by conduit under fluid pressure, on the export pipeline of hydraulic hand-pump, the outlet of little one way stop peturn valve is connected with the A mouth of two two logical change-over valves in the buffer cell; Six of its feature is in buffer cell, and by conduit under fluid pressure, the A mouth of two two logical change-over valves is connected with apportioning valve with the fluid chamber of holding fluid cylinder simultaneously; Seven of its feature is in buffer cell, and by conduit under fluid pressure, the air chamber of holding fluid cylinder is connected with high-pressure gas bottle; Eight of its feature is that by conduit under fluid pressure, the A mouth of three position four-way directional control valve is connected with the A mouth of hydraulic control one-way valve and the P mouth of two position three way directional control valve respectively with the B mouth in the commutation control unit; Nine of its feature is that by conduit under fluid pressure, the B mouth of hydraulic control one-way valve and the A mouth of two position three way directional control valve are connected with rod chamber with the rodless cavity of anticollision oil cylinder respectively in the commutation control unit; Ten of its feature is that the piston rod of anticollision oil cylinder adopts spherical hinge structure to be connected with the butt joint piece; 11 of its feature is that the cylinder body of anticollision oil cylinder adopts spherical hinge structure to be connected with fixed block; 12 of its feature is in the piston rod of anticollision oil cylinder a displacement pickup to be housed; 13 of its feature is by back-up block and fixed block, and the anticollision oil cylinder is connected with large ocean job platform deck; 14 of its feature is that the quantity of anticollision oil cylinder has more than one.
The principle of work of this offshore wellhead platform anticollision fender guard is: when offshore wellhead flat-bed flow sheet equipment and oil well et out of order; when needing the operation repairing; the large ocean job platform is displaced near the offshore wellhead platform by tugboat; for preventing that docking operation from producing bump, the anticollision fender guard enters the operation mode of operation.The first step is handled hydraulic hand-pump and electric hydraulic pump, sets up hydraulic efficiency pressure system safety valve and apportioning valve operation pressure, and under the emergency state that has a power failure, by the conversion of shutoff valve, the alternative electric hydraulic pump of hydraulic hand-pump reaches the safe spare purpose suddenly; Second step, operation anticollision oil cylinder forwarding button on controller, at this moment, in the buffer cell two two logical change-over valve P mouths and A mouth are in off-state, three position four-way directional control valve P mouth and A mouth, B mouth and T mouth in the commutation control unit are in on-state, two position three way directional control valve P mouth and A mouth in the commutation control unit are in on-state, the pressure oil of electric hydraulic pump enters the rodless cavity of anticollision oil cylinder, the piston rod that promotes the anticollision oil cylinder stretches out, and makes the butt joint piece press close to offshore wellhead platform conduit; The 3rd step, operation anticollision oil cylinder stop button on controller, at this moment, in the buffer cell two two logical change-over valve P mouths and A mouth are in on-state, three position four-way directional control valve P mouth and A mouth in the commutation control unit, B mouth and T mouth are in off-state, two position three way directional control valve A mouth and T mouth in the commutation control unit are in on-state, the large ocean job platform is converted into the fluid squeese pressure of anticollision oil cylinder piston to rodless cavity to offshore wellhead flat-bed impact, contraction along with anticollision oil cylinder piston bar, displacement pickup is delivered to controller with the displacement that detects, controller utilizes the force value of this value real-time regulated apportioning valve, makes the large ocean job platform steadily not have the ground of impact and docks with the offshore wellhead platform.
The utility model can be eliminated the potential safety hazard that exists in the operation of present offshore wellhead platform, the repairing process, solving large ocean job platform and small-sized wellhead platform moves when docking, wind-engaging, wave, ocean current and boats and ships are controlled error or the like factor affecting, the latter suffers the former huge impact easily, cause cover, major safety problems such as oil blowout leakage, device has simple and reliable for structure, the characteristics that operating characteristic is superior.The ratio pressure of the utility model anticollision oil cylinder piston bar is controlled contraction technology in real time can realize effectively that the large ocean job platform docks with small-sized wellhead platform platform, avoids bump, has very high application value.
Description of drawings
Fig. 1 is a kind of great safety device elevational schematic view that is used for offshore wellhead platform anticollision protection of the utility model.
Fig. 2 is a kind of great safety device plan sketch that is used for offshore wellhead platform anticollision protection of the utility model.
Fig. 3 is a kind of great safety device hydraulic system principle figure that is used for offshore wellhead platform anticollision protection of the utility model.
1 hydraulic power unit, 2 buffer cells, 3 commutation control units, 4 anticollision oil cylinders, 5 controllers
6 butt joint pieces, 7 fuel tanks, 8 electric hydraulic pumps, 9 hydraulic hand-pumps, 10 big one way stop peturn valves
14 2 two logical change-over valves of 11 little one way stop peturn valve 12 shutoff valves 13 safety valves
15 hold fluid cylinder 16 apportioning valves 17 high-pressure gas bottles 18 three position four-way directional control valves 19 hydraulic control one-way valves
20 two position three way directional control valves, 21 displacement pickups, 22 back-up blocks, 23 fixed blocks
24 offshore wellhead platform conduits, 25 large ocean job platform decks
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model patent mainly comprises hydraulic power unit 1, buffer cell 2, commutation control unit 3, anticollision oil cylinder 4, controller 5, butt joint piece 6, back-up block 22 and fixed block 23; One of its feature is by conduit under fluid pressure, and in buffer cell 2, the P mouth of two two logical change-over valves 14 directly is connected with the rodless cavity of anticollision oil cylinder 4; Two of its feature is in hydraulic power unit 1, pass through conduit under fluid pressure, the suction inlet of electric hydraulic pump 8 is with after the suction inlet of hydraulic hand-pump 9 is in parallel, directly be connected with fuel tank 7, and the outlet of electric hydraulic pump 8 is connected with big one way stop peturn valve 10, and the outlet of hydraulic hand-pump 9 is connected with little one way stop peturn valve 11; Three of its feature is in hydraulic power unit 1, and by shutoff valve 12, big one way stop peturn valve 10 is connected with little one way stop peturn valve 11; Four of its feature is in hydraulic power unit 1, and by conduit under fluid pressure, on electric hydraulic pump 8 export pipelines, the outlet of big one way stop peturn valve 10 is connected to a safety valve 13, is connected with the P mouth of three position four-way directional control valve 18 in the commutation control unit 3 simultaneously; Five of its feature is in hydraulic power unit 1, and by conduit under fluid pressure, on the export pipeline of hydraulic hand-pump 9, the outlet of little one way stop peturn valve 11 is connected with the A mouth of two two logical change-over valves 14 in the buffer cell 2; Six of its feature is in buffer cell 2, and by conduit under fluid pressure, the A mouth of two two logical change-over valves 14 is connected with apportioning valve 16 with the fluid chamber of holding fluid cylinder 15 simultaneously; Seven of its feature is in buffer cell 2, and by conduit under fluid pressure, the air chamber of holding fluid cylinder 15 is connected with high-pressure gas bottle 17; Eight of its feature is that by conduit under fluid pressure, the A mouth of three position four-way directional control valve 18 is connected with the A mouth of hydraulic control one-way valve 19 and the P mouth of two position three way directional control valve 20 respectively with the B mouth in commutation control unit 3; Nine of its feature is that by conduit under fluid pressure, the B mouth of hydraulic control one-way valve 19 is connected with rod chamber with the rodless cavity of anticollision oil cylinder 4 respectively with the A mouth of two position three way directional control valve 20 in commutation control unit 3; Ten of its feature is that the piston rod of anticollision oil cylinder 4 adopts spherical hinge structure to be connected with butt joint piece 6; 11 of its feature is that the cylinder body of anticollision oil cylinder 4 adopts spherical hinge structure to be connected with fixed block 23; 12 of its feature is in the piston rod of anticollision oil cylinder 4 displacement pickup 21 to be housed; 13 of its feature is by back-up block 22 and fixed block 23, and anticollision oil cylinder 4 is connected with large ocean job platform deck 25; 14 of its feature is that the quantity of anticollision oil cylinder 4 has more than one.
As Fig. 1, Fig. 2 and shown in Figure 3; the principle of work of this offshore wellhead platform anticollision fender guard is: the principle of work of this offshore wellhead platform anticollision fender guard is: when offshore wellhead flat-bed flow sheet equipment and oil well et out of order; when needing the operation repairing; the large ocean job platform is displaced near the offshore wellhead platform by tugboat; for preventing that docking operation from producing bump, the anticollision fender guard enters the operation mode of operation.The first step is handled hydraulic hand-pump 9 and electric hydraulic pump 8, sets up hydraulic efficiency pressure system safety valve 13 and apportioning valve 16 operation pressures, suddenly under the emergency state that has a power failure, by the conversion of shutoff valve 12, hydraulic hand-pump 9 alternative electric hydraulic pumps 8 reach the safe spare purpose; Second step, operation anticollision oil cylinder 4 forwarding buttons on controller 5, at this moment, the P mouth and the A mouth of two two logical change-over valves 14 are in off-state in the buffer cell 2, P mouth and A mouth, B mouth and the T mouth of three position four-way directional control valve 18 are in on-state in the commutation control unit 3, the P mouth and the A mouth of two position three way directional control valve 20 are in on-state in the commutation control unit 3, the pressure oil of electric hydraulic pump 8 enters the rodless cavity of anticollision oil cylinder 4, the piston rod that promotes anticollision oil cylinder 4 stretches out, and makes the butt joint piece paste wellhead platform conduit 24 on 6 coastal waters; The 3rd step, operation anticollision oil cylinder 4 stop buttons on controller 5, at this moment, the P mouth and the A mouth of two two logical change-over valves 14 are in on-state in the buffer cell 2, the P mouth and the A mouth of three position four-way directional control valve 18 in the commutation control unit 3, B mouth and T mouth are in off-state, the A mouth and the T mouth of two position three way directional control valve 20 are in on-state in the commutation control unit 3, the large ocean job platform is converted into the fluid squeese pressure of anticollision oil cylinder 4 pistons to rodless cavity to offshore wellhead flat-bed impact, contraction along with anticollision oil cylinder 4 piston rods, displacement pickup 21 is delivered to controller 5 with the displacement that detects, controller 5 utilizes the force value of this value real-time regulated apportioning valve 6, makes the large ocean job platform steadily not have the ground of impact and docks with the offshore wellhead platform.
Claims (14)
1. a great safety device that is used for offshore wellhead platform anticollision protection comprises hydraulic power unit (1), buffer cell (2), commutation control unit (3), anticollision oil cylinder (4), controller (5), butt joint piece (6), back-up block (22) and fixed block (23); It is characterized in that by conduit under fluid pressure in buffer cell (2), the P mouth of two two logical change-over valves (14) directly is connected with the rodless cavity of anticollision oil cylinder (4).
2. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1; it is characterized in that in hydraulic power unit (1); pass through conduit under fluid pressure; the suction inlet of electric hydraulic pump (8) is with after the suction inlet of hydraulic hand-pump (9) is in parallel; directly be connected with fuel tank (7); and the outlet of electric hydraulic pump (8) is connected with big one way stop peturn valve (10), and the outlet of hydraulic hand-pump (9) is connected with little one way stop peturn valve (11).
3. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1 is characterized in that in hydraulic power unit (1), and by shutoff valve (12), big one way stop peturn valve (10) is connected with little one way stop peturn valve (11).
4. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1; it is characterized in that in hydraulic power unit (1); pass through conduit under fluid pressure; on electric hydraulic pump (8) export pipeline; the outlet of big one way stop peturn valve (10) is connected to a safety valve (13), is connected with the P mouth of three position four-way directional control valve (18) in the commutation control unit (3) simultaneously.
5. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1; it is characterized in that in hydraulic power unit (1); pass through conduit under fluid pressure; on the export pipeline of hydraulic hand-pump (9), the outlet of little one way stop peturn valve (11) is connected with the A mouth of two two logical change-over valves (14) in the buffer cell (2).
6. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1; it is characterized in that in buffer cell (2); by conduit under fluid pressure, the A mouth of two two logical change-over valves (14) is connected with apportioning valve (16) with the fluid chamber of holding fluid cylinder (15) simultaneously.
7. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1 is characterized in that in buffer cell (2) by conduit under fluid pressure, the air chamber of holding fluid cylinder (15) is connected with high-pressure gas bottle (17).
8. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1; it is characterized in that in commutation control unit (3); by conduit under fluid pressure, the A mouth of three position four-way directional control valve (18) is connected with the A mouth of hydraulic control one-way valve (19) and the P mouth of two position three way directional control valve (20) respectively with the B mouth.
9. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1; it is characterized in that in commutation control unit (3); by conduit under fluid pressure, the A mouth of the B mouth of hydraulic control one-way valve (19) and two position three way directional control valve (20) is connected with rod chamber with the rodless cavity of anticollision oil cylinder (4) respectively.
10. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1 is characterized in that the piston rod of anticollision oil cylinder (4) adopts spherical hinge structure to be connected with butt joint piece (6).
11. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1 is characterized in that the cylinder body of anticollision oil cylinder (4) adopts spherical hinge structure to be connected with spud pile (23).
12. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1 is characterized in that in the piston rod of anticollision oil cylinder (4) displacement pickup (21) being housed.
13. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1 is characterized in that by back-up block (22) and fixed block (23), anticollision oil cylinder (4) is connected with large ocean job platform deck (25).
14. a kind of great safety device that is used for offshore wellhead platform anticollision protection according to claim 1 is characterized in that the quantity of anticollision oil cylinder (4) has more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020601987XU CN201872917U (en) | 2010-11-07 | 2010-11-07 | Major safety device for anti-impact protection of offshore wellhead platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020601987XU CN201872917U (en) | 2010-11-07 | 2010-11-07 | Major safety device for anti-impact protection of offshore wellhead platform |
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| Publication Number | Publication Date |
|---|---|
| CN201872917U true CN201872917U (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020601987XU Expired - Fee Related CN201872917U (en) | 2010-11-07 | 2010-11-07 | Major safety device for anti-impact protection of offshore wellhead platform |
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| Country | Link |
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| CN (1) | CN201872917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464096A (en) * | 2010-11-07 | 2012-05-23 | 中国石化集团胜利石油管理局井下作业公司 | Large anticollision protection safety device for offshore wellhead platform |
-
2010
- 2010-11-07 CN CN201020601987XU patent/CN201872917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464096A (en) * | 2010-11-07 | 2012-05-23 | 中国石化集团胜利石油管理局井下作业公司 | Large anticollision protection safety device for offshore wellhead platform |
| CN102464096B (en) * | 2010-11-07 | 2014-05-07 | 中国石化集团胜利石油管理局井下作业公司 | Large anticollision protection safety device for offshore wellhead platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20111107 |