CN102464096A - Large anticollision protection safety device for offshore wellhead platform - Google Patents
Large anticollision protection safety device for offshore wellhead platform Download PDFInfo
- Publication number
- CN102464096A CN102464096A CN2010105400002A CN201010540000A CN102464096A CN 102464096 A CN102464096 A CN 102464096A CN 2010105400002 A CN2010105400002 A CN 2010105400002A CN 201010540000 A CN201010540000 A CN 201010540000A CN 102464096 A CN102464096 A CN 102464096A
- Authority
- CN
- China
- Prior art keywords
- anticollision
- wellhead platform
- safety device
- mouth
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a large anticollision protection safety device for an offshore wellhead platform. The large anticollision protection safety device for the offshore wellhead platform consists of a hydraulic power unit, a buffering unit, a reversing control unit, an anticollision oil cylinder, a controller, an abutting block, a support block and a fixing block. A main connection mode of the large anticollision protection safety device is that an opening P of a two-station two-path reversing valve in the buffering unit is directly connected with a rod-free cavity of the anticollision oil cylinder through a hydraulic pipeline. By a proportional pressure real-time control shrinkage technology of a piston rod of the anticollision oil cylinder, the impact force of the offshore wellhead platform is converted stably, one part of the impact force compresses gas in a high-pressure gas cylinder, and one part of the impact force is consumed in a mode of pressure relief of a proportional valve, so the potential safety hazard existing in the conventional operation and first-aid repair process of the offshore wellhead platform is eliminated, the non-collision abutting of a large sea operation platform and a small wellhead platform is realized, the wellhead platform is prevented from falling off, and great economic loss, and pollution of oil spill to sea are avoided.
Description
Technical field
What patent of the present invention 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 B P 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 present invention 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 patent of invention content
The technical matters that patent of the present invention 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 realizes the operation of offshore wellhead platform safety, and the purpose of patent of the present invention 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, patent of the present invention is achieved in that patent of the present invention mainly comprises hydraulic power unit, buffer cell, switching-over control unit, anticollision oil cylinder, controller, butt joint piece, back-up block and fixed block; One of its characteristic is through 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 characteristic is in hydraulic power unit; Through 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 parallelly connected; 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 characteristic is in hydraulic power unit, and through shutoff valve, big one way stop peturn valve is connected with little one way stop peturn valve; Four of its characteristic is in hydraulic power unit, and through 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 switching-over control unit simultaneously; Five of its characteristic is in hydraulic power unit, and through 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 characteristic is in buffer cell, and through conduit under fluid pressure, the A mouth of two two logical change-over valves is connected with apportioning valve with the liquid chambers of holding fluid cylinder simultaneously; Seven of its characteristic is in buffer cell, and through conduit under fluid pressure, the air chamber of holding fluid cylinder is connected with high-pressure gas bottle; Eight of its characteristic is that through 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 switching-over control unit; Nine of its characteristic is that through 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 switching-over control unit; Ten of its characteristic is that the piston rod of anticollision oil cylinder adopts spherical hinge structure to be connected with the butt joint piece; 11 of its characteristic is that the cylinder body of anticollision oil cylinder adopts spherical hinge structure to be connected with fixed block; 12 of its characteristic is in the piston rod of anticollision oil cylinder a displacement pickup to be housed; 13 of its characteristic is through back-up block and fixed block, and the anticollision oil cylinder is connected with large ocean job platform deck; 14 of its characteristic 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 through tugboat; For preventing that docking operation from producing bump, the anticollision fender guard gets into 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 suddenly, through the conversion of shutoff valve, the alternative electric hydraulic pump of hydraulic hand-pump reaches the safe spare purpose; 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 are in off-state with the A mouth, and three position four-way directional control valve P mouth and A mouth, B mouth and T mouth in the control unit that commutates are in on-state; Two position three way directional control valve P mouth and A mouth in the switching-over control unit are in on-state; The pressure oil of electric hydraulic pump gets into the rodless cavity of anticollision oil cylinder, and 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 are in on-state with the A mouth, and three position four-way directional control valve P mouth and A mouth, B mouth and T mouth in the control unit that commutates are in off-state; Two position three way directional control valve A mouth and T mouth in the switching-over 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, and along with the contraction of 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 present invention can eliminate 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, and 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 anticollision oil cylinder piston bar of the present invention 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 present invention.
Fig. 2 is a kind of great safety device plan sketch that is used for offshore wellhead platform anticollision protection of the present invention.
Fig. 3 is a kind of great safety device hydraulic system principle figure that is used for offshore wellhead platform anticollision protection of the present invention.
14 2 two logical reversal valves 15 of 1 hydraulic power unit, 2 buffer cells, 3 commutation control modules, 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 valve 11 little one way stop peturn valve 12 stop valves 13 safety valves hold 20 three-way diverter valves of fluid cylinder 16 proportioning valves, 17 gas cylinder 18 three position four-way directional control valves, 19 hydraulic control one-way valves, 21 displacement transducers, 22 back-up blocks, 23 fixed blocks, 24 offshore wellhead platform conduits, 25 large ocean job platform decks
The specific embodiment
Like Fig. 1, Fig. 2 and shown in Figure 3, patent of the present invention mainly comprises hydraulic power unit 1, buffer cell 2, switching-over control unit 3, anticollision oil cylinder 4, controller 5, butt joint piece 6, back-up block 22 and fixed block 23; One of its characteristic is through 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 characteristic 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 parallelly connected; 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, the outlet of hydraulic hand-pump 9 is connected with little one way stop peturn valve 11; Three of its characteristic is in hydraulic power unit 1, and through shutoff valve 12, big one way stop peturn valve 10 is connected with little one way stop peturn valve 11; Four of its characteristic is in hydraulic power unit 1, and through 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 switching-over control unit 3 simultaneously; Five of its characteristic is in hydraulic power unit 1, and 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; Six of its characteristic is in buffer cell 2, and through conduit under fluid pressure, the A mouth of two two logical change-over valves 14 is connected with apportioning valve 16 with the liquid chambers of holding fluid cylinder 15 simultaneously; Seven of its characteristic is in buffer cell 2, and through conduit under fluid pressure, the air chamber of holding fluid cylinder 15 is connected with high-pressure gas bottle 17; Eight of its characteristic is that through 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 switching-over control unit 3; Nine of its characteristic is that through 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 switching-over control unit 3; Ten of its characteristic 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 characteristic is that the cylinder body of anticollision oil cylinder 4 adopts spherical hinge structure to be connected with fixed block 23; 12 of its characteristic is in the piston rod of anticollision oil cylinder 4 displacement pickup 21 to be housed; 13 of its characteristic is that anticollision oil cylinder 4 is connected with large ocean job platform deck 25 through back-up block 22 and fixed block 23; 14 of its characteristic is that the quantity of anticollision oil cylinder 4 has more than one.
Like 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 to through tugboat near the offshore wellhead platform, produces bump for preventing docking operation, and the anticollision fender guard gets into 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; Through 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, and 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 switching-over 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 switching-over control unit 3; The pressure oil of electric hydraulic pump 8 gets into the rodless cavity of anticollision oil cylinder 4, and 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, and P mouth and A mouth, B mouth and the T mouth of three position four-way directional control valve 18 are in off-state in the switching-over control unit 3; The A mouth and the T mouth of two position three way directional control valve 20 are in on-state in the switching-over 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, and along with the contraction of 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), switching-over 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 through 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); Through conduit under fluid pressure, the suction inlet of electric hydraulic pump (8) directly is connected with fuel tank (7) with after the suction inlet of hydraulic hand-pump (9) is parallelly connected; 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 through 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 switching-over 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); Through conduit under fluid pressure, the A mouth of two two logical change-over valves (14) is connected with apportioning valve (16) with the liquid chambers 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) through 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 switching-over control unit (3); Through 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 switching-over control unit (3); Through 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 through 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 |
|---|---|---|---|
| CN201010540000.2A CN102464096B (en) | 2010-11-07 | 2010-11-07 | Large anticollision protection safety device for offshore wellhead platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010540000.2A CN102464096B (en) | 2010-11-07 | 2010-11-07 | Large anticollision protection safety device for offshore wellhead platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102464096A true CN102464096A (en) | 2012-05-23 |
| CN102464096B CN102464096B (en) | 2014-05-07 |
Family
ID=46068276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010540000.2A Expired - Fee Related CN102464096B (en) | 2010-11-07 | 2010-11-07 | Large anticollision protection safety device for offshore wellhead platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102464096B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488121A (en) * | 2018-02-12 | 2018-09-04 | 宝鸡石油机械有限责任公司 | A kind of board migration device hydraulic pressure is from ambulation control method and control system |
| CN108916144A (en) * | 2018-07-04 | 2018-11-30 | 北京航天发射技术研究所 | A kind of dynamic hydraulic combined oil supply system |
| CN108916153A (en) * | 2018-07-05 | 2018-11-30 | 北京航天发射技术研究所 | It is a kind of for lifting the gas drive Oil-source control method and system of Multi-stage cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2049316A (en) * | 1935-05-02 | 1936-07-28 | Petersen Martin | Safety device for ships |
| US5323687A (en) * | 1991-10-28 | 1994-06-28 | Danfors A/S | Hydraulic circuit |
| CN1115296A (en) * | 1994-04-12 | 1996-01-24 | Etpm公司 | Anti-surge method and apparatus for offshore structures |
| CN1463332A (en) * | 2001-05-17 | 2003-12-24 | 日立建机株式会社 | Hydraulic drive unit |
| CN201128477Y (en) * | 2007-10-31 | 2008-10-08 | 俞钟晓 | Anti-collision device for ship |
| CN201872917U (en) * | 2010-11-07 | 2011-06-22 | 胜利石油管理局井下作业公司 | Major safety device for anti-impact protection of offshore wellhead platform |
-
2010
- 2010-11-07 CN CN201010540000.2A patent/CN102464096B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2049316A (en) * | 1935-05-02 | 1936-07-28 | Petersen Martin | Safety device for ships |
| US5323687A (en) * | 1991-10-28 | 1994-06-28 | Danfors A/S | Hydraulic circuit |
| CN1115296A (en) * | 1994-04-12 | 1996-01-24 | Etpm公司 | Anti-surge method and apparatus for offshore structures |
| CN1463332A (en) * | 2001-05-17 | 2003-12-24 | 日立建机株式会社 | Hydraulic drive unit |
| CN201128477Y (en) * | 2007-10-31 | 2008-10-08 | 俞钟晓 | Anti-collision device for ship |
| CN201872917U (en) * | 2010-11-07 | 2011-06-22 | 胜利石油管理局井下作业公司 | Major safety device for anti-impact protection of offshore wellhead platform |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488121A (en) * | 2018-02-12 | 2018-09-04 | 宝鸡石油机械有限责任公司 | A kind of board migration device hydraulic pressure is from ambulation control method and control system |
| CN108916144A (en) * | 2018-07-04 | 2018-11-30 | 北京航天发射技术研究所 | A kind of dynamic hydraulic combined oil supply system |
| CN108916153A (en) * | 2018-07-05 | 2018-11-30 | 北京航天发射技术研究所 | It is a kind of for lifting the gas drive Oil-source control method and system of Multi-stage cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102464096B (en) | 2014-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201010891Y (en) | Self-elevating producing and oil-storing platform | |
| CN210459123U (en) | Pier type filling wharf | |
| US6336419B1 (en) | Floating structure | |
| CN102358403B (en) | For anti-system and the semi-submerged platform of toppling of semi-submerged platform | |
| CN102464096B (en) | Large anticollision protection safety device for offshore wellhead platform | |
| CN112478052B (en) | Ship ballast tank left-right mutual refuting system and method for realizing inclination test by adopting same | |
| CN104590497A (en) | FPSO (Float Production Storage and Offloading) ship | |
| CN103921914B (en) | Escape capsule Connection Release device | |
| CN201872917U (en) | Major safety device for anti-impact protection of offshore wellhead platform | |
| CN113086112A (en) | Pressure discharge loading system of column-stabilized semi-submersible production oil storage platform and semi-submersible platform | |
| CN107269608B (en) | FPSO shipping rudder blade hydraulic Lock systems | |
| CN208167645U (en) | A kind of ship entry collision avoidance buffer system | |
| CN103925410B (en) | Emergency repair device for submarine pipelines | |
| CN211139574U (en) | Simple FSRU berthing and natural gas outward-conveying device | |
| CN102140782B (en) | Energy-saving type boat-bridge collision-preventing automatic protecting device | |
| CN201746398U (en) | Ballast water treatment system of semi-submerged ship | |
| CN102235156A (en) | Stand pipe limiting device | |
| CN212506068U (en) | Combined wharf | |
| CN205171452U (en) | Disconnect -type hydraulic pressure leans on ship system | |
| CN101672261A (en) | Hydraulic pressure power source used for underwater operation tool | |
| CN201526547U (en) | Water pressure power supply for an underwater operation tool | |
| CN201592769U (en) | Efficient fast submarine pipeline emergency repair vessel | |
| CN204979158U (en) | Latent floating carrying platform device | |
| CN211146078U (en) | Offshore liquefied natural gas unloading device | |
| CN204078038U (en) | One hangs formula combination dock gate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141107 |
|
| EXPY | Termination of patent right or utility model |