CN102464096B - Large anticollision protection safety device for offshore wellhead platform - Google Patents
Large anticollision protection safety device for offshore wellhead platform Download PDFInfo
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- CN102464096B CN102464096B CN201010540000.2A CN201010540000A CN102464096B CN 102464096 B CN102464096 B CN 102464096B CN 201010540000 A CN201010540000 A CN 201010540000A CN 102464096 B CN102464096 B CN 102464096B
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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 for the great safety device of offshore wellhead platform anticollision protection, belongs to mechanical field.
Background technology
When offshore platform, boats and ships bump, will serious threat personnel life security, cause any property loss and the catastrophic failure such as environmental pollution, for example, on June 27th, 2005, because supply boat accident collision standpipe causes, platform blast is rear damages the BHN of state Indian Oil Corp platform; For another example, evenings 10 on April 20th, 2010 point, " deep water ground line " number semi-submersible drilling unit of BP BP company Zheng U.S. Gulf of Mexico operation is blasted, the sinking of 36 hours rear platforms.This event not only causes 11 life death, and seabed crude oil leakage, forms large area gross pollution, leads to rare environmental disaster." deep water ground line " drilling platform cost in event 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 in addition the compensation expense of over ten billion dollar, and lesson is not not deep, for BP company, this huge loss beyond doubt.But current event is also sounded the alarm the oil play that comprises China to the whole world-" on production link, must ensure safety ", stop each link dangerous situation and occur, prevent trouble before it happens.Thus; according to the potential safety hazard existing in current offshore wellhead platform operation, repairing process-" when large ocean job platform docks with small-sized well head platform movement; wind-engaging, wave, ocean current and boats and ships are controlled error etc. factor impact; the latter easily suffers the former huge impact; cause cover, the major safety problems such as oil blowout leakage ", a kind of great safety device for offshore wellhead platform anticollision protection has been proposed.
In order to solve, major safety risks problem that above-mentioned offshore wellhead platform exists designs just in the present invention; object is to eliminate safe hidden trouble; avoid covering because of wellhead platform; the heavy economic losses causing and the Oil spills pollution to marine environment, for offshore oil development provides a kind of effective failure-free safety guard.
Patent of invention content
The technical matters that patent of the present invention will solve is to provide a kind of great safety device for offshore wellhead platform anticollision protection; this device can thoroughly solve in large ocean job platform and small-sized well head platform movement docking operation; the latter exists and suffers to clash into the serious safety problem threatening; the generation of the accident that provides against hidden trouble; realize offshore wellhead platform safe operation, the object of patent of the present invention is that a kind of device of safe and reliable wellhead platform anticollision protection is provided for 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, commutation control unit, anticollision oil cylinder, controller, docking 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 is directly connected with the rodless cavity of anticollision oil cylinder; Two of its feature is in hydraulic power unit, by conduit under fluid pressure, after the suction inlet of electric hydraulic pump is in parallel with the suction inlet of hydraulic hand-pump, be directly connected with fuel tank, and electric hydaulic delivery side of pump is connected with large one way stop peturn valve, 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, large 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 electric hydraulic pump export pipeline, the outlet of large 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 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 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 B mouth in 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 commutation control unit; Ten of its feature is that the piston rod of anticollision oil cylinder adopts spherical hinge structure to be connected with docking 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 is housed; 13 of its feature is by back-up block and fixed block, and 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 flow sheet equipment and the fault of oil well of offshore wellhead platform; while needing operation repairing; large ocean job platform is displaced near offshore wellhead platform by tugboat; for preventing that docking operation from producing, clash into, anticollision fender guard enters operation mode of operation.The first step, handles 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 having a power failure suddenly, by the conversion of shutoff valve, the alternative electric hydraulic pump of hydraulic hand-pump, reaches safe spare object, second step, on controller, operate anticollision oil cylinder forwarding button, now, in 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 in commutation control unit and A mouth, B mouth and T mouth are in on-state, two position three way directional control valve P mouth in commutation control unit and A mouth are in on-state, the pressure oil of electric hydraulic pump enters the rodless cavity of anticollision oil cylinder, the piston rod that promotes anticollision oil cylinder stretches out, and makes to dock piece and presses close to offshore wellhead platform conduit, the 3rd step, on controller, operate anticollision oil cylinder stop button, now, in 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 commutation control unit, B mouth and T mouth are in off-state, two position three way directional control valve A mouth in commutation control unit and T mouth are in on-state, large ocean job platform is converted into the fluid squeese pressure of anticollision oil cylinder piston to rodless cavity to the impact of offshore wellhead platform, contraction along with anticollision cylinder piston rod, displacement pickup is delivered to controller by the displacement of detection, controller utilizes this value to regulate in real time the force value of apportioning valve, large ocean job platform is steadily docked with offshore wellhead platform without impacting.
The present invention can eliminate the potential safety hazard existing in current offshore wellhead platform operation, repairing process, when solution large ocean job platform docks with small-sized well head platform movement, wind-engaging, wave, ocean current and boats and ships are controlled the impact of error etc. factor, the latter easily suffers the former huge impact, cause cover, the major safety problems such as oil blowout leakage, device has simple and reliable for structure, the feature that operating characteristic is superior.The ratio pressure of anticollision cylinder piston rod of the present invention is controlled in real time contraction technology and can effectively be realized large ocean job platform and dock with small-sized wellhead platform platform, avoids clashing into, and has very high application value.
Accompanying drawing explanation
Fig. 1 is a kind of great safety device elevational schematic view for offshore wellhead platform anticollision protection of the present invention.
Fig. 2 is a kind of great safety device plan sketch for offshore wellhead platform anticollision protection of the present invention.
Fig. 3 is a kind of great safety device hydraulic system principle figure for offshore wellhead platform anticollision protection of the present invention.
14 2 two logical change-over valves 15 of 1 hydraulic power unit 2 buffer cell 3 commutation control unit 4 anticollision oil cylinder little one way stop peturn valve 12 shutoff valve 13 safety valves of the 5 controller 6 docking piece 7 large one way stop peturn valve 11 of fuel tank 8 electric hydraulic pump 9 hydraulic hand-pump 10 hold 20 three-way diverter valves of fluid cylinder 16 apportioning valve 17 high-pressure gas bottle 18 three position four-way directional control valve 19 hydraulic control one-way valves, 21 displacement pickup 22 back-up block 23 fixed block 24 offshore wellhead platform conduit 25 large ocean job platform decks
The specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, patent of the present invention mainly comprises hydraulic power unit 1, buffer cell 2, commutation control unit 3, anticollision oil cylinder 4, controller 5, docking 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 is directly 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, after the suction inlet of the suction inlet of electric hydraulic pump 8 and 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 large 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 feature is in hydraulic power unit 1, and by shutoff valve 12, large 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 large 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 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 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 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 docking 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, a displacement pickup 21 is 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 shown in Figure 1, Figure 2 and 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 flow sheet equipment and the fault of oil well of offshore wellhead platform; while needing operation repairing; large ocean job platform is displaced near offshore wellhead platform by tugboat; for preventing that docking operation from producing, clash into, anticollision fender guard enters operation mode of operation.The first step, handles 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 having a power failure, by the conversion of shutoff valve 12, the alternative electric hydraulic pump 8 of hydraulic hand-pump 9, reaches safe spare object, second step, on controller 5, operate anticollision oil cylinder 4 forwarding buttons, now, in buffer cell 2, the P mouth of two two logical change-over valves 14 and A mouth are in off-state, in commutation control unit 3, the P mouth of three position four-way directional control valve 18 and A mouth, B mouth and T mouth are in on-state, in commutation control unit 3, the P mouth of two position three way directional control valve 20 and A mouth are in on-state, 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 to dock piece and pastes 6 nearly offshore wellhead platform conduits 24, the 3rd step, on controller 5, operate anticollision oil cylinder 4 stop buttons, now, in buffer cell 2, the P mouth of two two logical change-over valves 14 and A mouth are in on-state, P mouth and the A mouth of three position four-way directional control valve 18 in commutation control unit 3, B mouth and T mouth are in off-state, in commutation control unit 3, the A mouth of two position three way directional control valve 20 and T mouth are in on-state, large ocean job platform is converted into the fluid squeese pressure of anticollision oil cylinder 4 pistons to rodless cavity to the impact of offshore wellhead platform, contraction along with anticollision oil cylinder 4 piston rods, displacement pickup 21 is delivered to controller 5 by the displacement of detection, controller 5 utilizes this value to regulate in real time the force value of apportioning valve 6, large ocean job platform is steadily docked with offshore wellhead platform without impacting.
Claims (1)
1. for a great safety device for offshore wellhead platform anticollision protection, comprise hydraulic power unit (1), buffer cell (2), commutation control unit (3), anticollision oil cylinder (4), controller (5), docking 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) is directly connected with the rodless cavity of anticollision oil cylinder (4); In hydraulic power unit (1), pass through conduit under fluid pressure, after the suction inlet of the suction inlet of electric hydraulic pump (8) and 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 large one way stop peturn valve (10), the outlet of hydraulic hand-pump (9) is connected with little one way stop peturn valve (11); In hydraulic power unit (1), by shutoff valve (12), large one way stop peturn valve (10) is connected with little one way stop peturn valve (11); In hydraulic power unit (1), pass through conduit under fluid pressure, on electric hydraulic pump (8) export pipeline, the outlet of large 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 commutation control unit (3) simultaneously; In hydraulic power unit (1), 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 buffer cell (2); 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; 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); 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 P mouth of two position three way directional control valve (20) with the A mouth of hydraulic control one-way valve (19) respectively with B mouth; 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; The piston rod of anticollision oil cylinder (4) adopts spherical hinge structure to be connected with docking piece (6); The cylinder body of anticollision oil cylinder (4) adopts spherical hinge structure to be connected with spud pile (23); A displacement pickup (21) is housed in the piston rod of anticollision oil cylinder (4); By back-up block (22) and fixed block (23), anticollision oil cylinder (4) is connected with large ocean job platform deck (25); 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 |
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| 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 |
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| CN102464096A CN102464096A (en) | 2012-05-23 |
| CN102464096B true CN102464096B (en) | 2014-05-07 |
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| CN201010540000.2A Expired - Fee Related CN102464096B (en) | 2010-11-07 | 2010-11-07 | Large anticollision protection safety device for offshore wellhead platform |
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| CN108488121B (en) * | 2018-02-12 | 2020-11-10 | 宝鸡石油机械有限责任公司 | Hydraulic self-walking control method and control system for moving device |
| CN108916144B (en) * | 2018-07-04 | 2020-02-28 | 北京航天发射技术研究所 | Gas-liquid 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 |
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| CN102464096A (en) | 2012-05-23 |
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