CN107933843B - FDPSO based on separable inner cupola formula anchoring system - Google Patents
FDPSO based on separable inner cupola formula anchoring system Download PDFInfo
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- CN107933843B CN107933843B CN201711206593.7A CN201711206593A CN107933843B CN 107933843 B CN107933843 B CN 107933843B CN 201711206593 A CN201711206593 A CN 201711206593A CN 107933843 B CN107933843 B CN 107933843B
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- floating drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B2021/501—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of articulated towers, i.e. slender substantially vertically arranged structures articulated near the sea bed
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
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- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of FDPSO based on separable inner cupola formula anchoring system, including hull and inner cupola formula anchoring system, hull includes a moon pool, and moon pool is vertical to run through hull；Inner cupola formula anchoring system includes capstan head, liquid transfer system and anchor structure；Capstan head and hull are rotatablely connected, and capstan head includes capstan head outer wall construction, floating drum, floating drum cave mechanism, and capstan head outer wall construction is installed in moon pool, and floating drum cave mechanism is located at the lower part of capstan head outer wall construction, and floating drum is installed in the mechanism of floating drum cave；Liquid transfer system includes drilling riser pipe and production tube；Piping connection in production tube and ship；Anchor structure includes anchor chain and anchor chain separation adjusting connector, and anchor chain separation adjusting connector is installed on floating drum.The present invention is using single moon pool, capstan head region is reduced, oil gas cabin storage space is increased, increases the weathercock effect scope of application of inner cupola formula anchoring system, floating drum can realize that drilling well piping is separated with the underwater Layer Near The Sea Surface for producing piping, improve the ability for coping with extreme weather environment.
Description
Technical field
The present invention relates to offshore oil and construction of natural gas fields engineering device technique field, and in particular to a kind of drilling well takes into account with oil storage
Floating type well drilling production storage unload carrying platform (Floating Drilling Production Storage Offloading,
FDPSO)。
Background technique
The single point mooring that environmental load influences floating platform can be greatly reduced as one kind for inner cupola formula anchoring system
System, in drill ship and Floating Production Storage discharge mechanism (Floating Production Storage and
Offloading, FPSO) it is inner have application, be arranged in a vertical cylindrical opening (i.e. moon pool) through hull.Single-point system
Pool system is normally at bow, and hull can be rotated around mooring gear, and turret mooring device is a kind of steel structure device, upper part with
Floating body is connected, and lower part is connected with mooring line, and top is equipped with rotary joint, and floating body can be around capstan head inner shaft under wind, wave, stream effect
It forwards dynamic, enables bow always towards minimum stress, that is, apply weathercock effect.For FPSO ship type, the standpipe of oil gas is conveyed
To be flexible, capstan head has the ability of the Automatic-falling under dangerous situation, and lower part capstan head takes off automatically when meeting with extreme meteorological condition
It falls, main ship sails out of, and extreme environment sails back reconnection after in the past again.And for drill ship, standpipe is rigidity, and Automatic-falling is difficult to reality
Existing, using preventer ejection escape when meeting with extreme meteorological condition, main ship tows the method that standpipe sails out of.Preventer is to be located at sea
At bed well head, the control well device of blowout is prevented, directly it is disconnected with drilling riser pipe in well head, will cause drilling fluid leakage, pole
Big pollution environment, and reconnection operation is complicated.
Carrying platform (FDPSO) is unloaded in floating type well drilling production storage to be a kind of collection drilling well, production, well workover, complete well, stores up the function such as emptying
Ship can be developed in the highly integrated performance source of one, can reduce cost of investment, shorten the production cycle, mentioned from the nineties in last century
After out, cause the extensive concern of ocean engineering circle, there are many research institutions to conduct a research this, and gradually there is real ship to build.
Traditional ship type FDPSO uses two moon pools, and two inner cupolas load production and drilling well piping respectively, and single point mooring becomes two point
Mooring.The presence of two fixing points limits the angle that rotates freely of floating body, and the weathercock effect scope of application is affected, right
FDPSO is unfavorable in face of the adaptability of extreme environment.Inner cupola system is located at hull interior, reduces the volume of compartment of floating body, Er Qiegai
Hull design structure itself is become, the presence of two inner cupola systems, then can be such that these disadvantages become apparent in FDPSO.In addition,
Traditional ship type FDPSO takes the mode for promptly disconnecting marine riser and preventer and sailing out of well location, consumption when handling extreme weather environment
Duration causes drilling fluid to reveal, and pollutes environment, and cost is big.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the deficiency of the prior art, providing one kind and being based on to divide
FDPSO from inner cupola formula anchoring system, it has the separable inner cupola formula mooring that can complete piping Layer Near The Sea Surface detached job
System can resist extreme meteorological condition, and economic risk is small, adaptable.
The present invention is technical solution used by solving technical problem set forth above are as follows:
A kind of FDPSO based on separable inner cupola formula anchoring system, including hull and inner cupola formula anchoring system, it is described
Hull includes a moon pool, and the moon pool is vertical to run through the hull；The inner cupola formula anchoring system includes capstan head, liquid biography
Defeated system and anchor structure；
The capstan head includes capstan head outer wall construction, floating drum, floating drum cave mechanism, drilling cramp, and the capstan head outer wall construction is installed on
In the moon pool, the capstan head outer wall construction and the hull are rotatablely connected, and the floating drum cave mechanism is set to outside the capstan head
The lower part of wall construction, the floating drum are installed in the floating drum cave mechanism, and the floating drum can be with floating drum cave organizational separation；
The drilling cramp includes frame body, rotary joint and top driving device, and the frame body is fixedly installed on the deck of the hull, the rotation
Adapter is installed on the frame body center, and the top driving device is installed at the top of the frame body；
The liquid transfer system includes drilling riser pipe and production tube, and the top of the drilling riser pipe and the top, which are driven, to be filled
Set connection, the bottom end of the drilling riser pipe sequentially pass through get into after the rotary joint, capstan head outer wall construction, floating drum seabed with
Under；The bottom end of the production tube is connected to drilling well, the top of production tube sequentially pass through the floating drum, capstan head outer wall construction,
After rotary joint with the fixation piping connection on ship；
The anchor structure includes anchor chain and anchor chain separation adjusting connector, and the anchor chain separation adjusting connector is installed on described floating
On cylinder, the upper end of the anchor chain is installed on the anchor chain separation adjusting connector, lower end is located at seabed.
In above scheme, the inner cupola formula anchoring system further includes sleeve and rotor-bearing system, and the sleeve is used for
Realization hull is docked with capstan head, and the sleeve is fixedly connected with the hull, and the capstan head outer wall construction is installed on the set
In cylinder, the rotor-bearing system includes rotor bearing and rotating wheel, and the rotor bearing and rotating wheel are mounted on the set
Between cylinder and capstan head outer wall construction, the capstan head outer wall construction is connected by the rotor bearing and rotating wheel and sleeve rotation
It connects, the hull can be freely rotated around the capstan head outer wall construction.
In above scheme, the capstan head outer wall construction includes capstan head wall, support frame and reinforcement connector, the capstan head wall
For cylindrical shape, the support frame is installed on the inside of the capstan head wall, and the reinforcement connector is installed on the outside of the capstan head wall
Bottom, between the capstan head wall and sleeve, around the capstan head wall.
In above scheme, the floating drum cave mechanism includes floating drum cave outer wall and buoy connector, the buoy connector peace
Upper end loaded on floating drum cave outer wall, floating drum cave outer wall are up-thin-low-thick round table-like, the shape of the floating drum and institute
The shape adaptation of floating drum cave outer wall is stated, the upper end of the floating drum is installed on floating drum cave outer wall by the buoy connector
It is interior.
In above scheme, the inner wall of the floating drum is disposed with floating drum transversum and floating drum indulges bone.
In above scheme, the floating drum includes the inclined waterproof cabin set gradually from top to bottom, level-one ballast tank, second level
Ballast tank and three-level ballast tank；The lower part bulkhead of the inclined waterproof cabin is ramp-like in dipping down, and the inclined waterproof cabin
The depth of periphery is higher than intermediate depth；The drilling riser pipe and production tube sequentially pass through the inclined waterproof cabin, level-one pressure
Carry water tank, second level ballast tank and three-level ballast tank.
In above scheme, the drilling riser pipe includes marine riser and drilling rod, and the marine riser is set in the outer of the drilling rod
Week, the liquid transfer system further include watertight conduit, the upper-deck cabin of the upper end of the watertight conduit and the second level ballast tank
Wall is tightly connected, lower end and the lower bulkhead of the three-level ballast tank are tightly connected；The drilling riser pipe is led through the watertight
Pipe.
In above scheme, the marine riser includes the water proof at top marine riser, lower part marine riser and marine riser merogenesis
Threaded connection place at pipe merogenesis between marine riser single-unit, can disconnect and reconnection, the top marine riser are positioned at marine riser
All marine risers more than at merogenesis, the lower part marine riser are all marine risers below at marine riser merogenesis；It is described
Drilling rod includes the threaded connection place at top rod, lower part drilling rod and drilling rod merogenesis, at the drilling rod merogenesis between drilling rod single-unit,
Can disconnect and reconnection, the top rod be at drilling rod merogenesis more than all drilling rods, the lower part drilling rod be positioned at
All drilling rods below at drilling rod merogenesis.
In above scheme, the floating drum further include be installed on the bulkhead of level-one ballast tank lower part, with the drilling well
The coaxial hydraulic clamping manipulator of standpipe, the hydraulic clamping manipulator being capable of drilling riser pipes described in clamp or release；It is bored
When the separation or reconnection operation of well standpipe, it is respectively positioned under the inclined waterproof cabin at the marine riser merogenesis and at drilling rod merogenesis
Between portion's bulkhead and hydraulic clamping manipulator.
In above scheme, the liquid transfer system further includes oily pipe fixing device, and the oil pipe fixing device is installed on
The bottom of the floating drum, the production tube is through the oily pipe fixing device.
The beneficial effects of the present invention are:
1, using single moon pool, single point mooring, the two point Mooring Arrangements of relatively bimonthly pool FDPSO reduce capstan head region,
To increase oil gas cabin storage space, while the scope of application of inner cupola weathercock effect is increased, it is extreme meteorological to enhance reply
Adaptibility to response, can satisfy drilling well it is synchronous with production function carry out, be suitable for the severe ice regime in polar region and South China Sea it is badly extra large
Platform well drilling and production of hydrocarbons operation under condition.
2, capstan head lower part is equipped with the floating drum that can be detached from capstan head main body, and floating drum can realize drilling well piping and produce the water of piping
Lower Layer Near The Sea Surface separation, improves and copes with extreme weather environment ability；
3, separable floating drum can be relied on to realize the separation of piping by intelligent control system, floating drum is still logical after separation
Anchoring system constant bearing is crossed, rigid drilling well piping can be fixed with this, its separation is realized, South China Sea, arctic regions can be met
Platform well drilling and production of hydrocarbons operation under equal rough seas carry out parameter regulation to floating drum floading condition, all kinds of valves, realize
The long-distance intelligent control of separation and reconnection work.
4, drilling well piping and production piping are arranged in same capstan head, bore the floating for loading this inner cupola formula anchoring system
Well production platform realizes production, storage and transportation, drilling well function simultaneously, shortens oil-gas mining investment cycle, reduces oil field development warp
Ji risk.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is that the present invention is based on the structural schematic diagrams of the FDPSO of separable inner cupola formula anchoring system；
Fig. 2 is the structure of the inner cupola formula anchoring system of the FDPSO based on separable inner cupola formula anchoring system shown in Fig. 1
Schematic diagram；
Fig. 3 is the structural schematic diagram of the drilling cramp of the anchoring system of inner cupola formula shown in Fig. 2；
Fig. 4 is the cross-sectional view of the floating drum of the anchoring system of inner cupola formula shown in Fig. 2；
Fig. 5 is that the anchoring system of inner cupola formula shown in Fig. 2 is located at deck with the cross-sectional view of lower member；
Fig. 6 is the structural schematic diagram of the liquid transfer system of the anchoring system of inner cupola formula shown in Fig. 2.
In figure: 100, hull；101, deck；200, inner cupola formula anchoring system；10, capstan head；11, capstan head outer wall construction；
111, capstan head wall；112, support frame；113, reinforce connector；12, floating drum；121, inclined waterproof cabin；122, level-one ballast water
Cabin；123, second level ballast tank；124, three-level ballast tank；125, floating drum transversum；126, floating drum indulges bone；127, hydraulic clamping machine
Tool hand；13, floating drum cave mechanism；131, floating drum cave outer wall；132, buoy connector；14, drilling cramp；141, frame body；142, rotation connects
Head；143, top driving device；20, sleeve；30, liquid transfer system；31, watertight conduit；32, drilling riser pipe；321, marine riser；
3211, top marine riser；3212, lower part marine riser；3213, at marine riser merogenesis；322, drilling rod；3221, top rod；
3222, lower part drilling rod；3223, at drilling rod merogenesis；323, sealed valve；33, production tube；34, oily pipe fixing device；40, imperial
Door；50, anchor structure；51, anchor chain；52, anchor chain separation adjusting connector；60, rotor-bearing system；61, rotor bearing；62,
Rotating wheel.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
As shown in figures 1 to 6, it is a preferred embodiment of the present invention the FDPSO based on separable inner cupola formula anchoring system,
Including hull 100 and inner cupola formula anchoring system 200, hull 100 includes a moon pool, and moon pool is vertical to run through hull 100, moon pool
Inside carry inner cupola formula anchoring system 200.Inner cupola formula anchoring system 200 includes capstan head 10, liquid transfer system 30 and anchor
Structure 50.
Capstan head 10 includes capstan head outer wall construction 11, floating drum 12, floating drum cave mechanism 13 and drilling cramp 14.Capstan head outer wall construction 11 is pacified
Loaded in moon pool, capstan head outer wall construction 11 and hull 100 are rotatablely connected, and floating drum cave mechanism 13 is set to capstan head outer wall construction 11
Lower part.Floating drum 12 is installed in floating drum cave mechanism 13, and floating drum 12 can be separated with floating drum cave mechanism 13.Drilling cramp 14 includes frame body
141, rotary joint 142 and top driving device 143, frame body 141 are fixedly installed on the deck 101 of hull 100, with capstan head outer wall knot
Structure 11 is coaxial, can rotate with hull 100, and rotary joint 142 is installed on 141 center of frame body, and rotary joint 142 is a kind of
360 ° rotation pumped (conveying) medium closed rotary connector, can with the wind, wave, flow rotation, for be connected hull 100 and liquid transmission be
The hydraulic seal rotated in piping when capstan head 10 works, can be transferred in 100 fixed piping system of hull by system 30.Top driving device 143
It is installed on 141 top of frame body.
Liquid transfer system 30 includes drilling riser pipe 32 and production tube 33, the top of drilling riser pipe 32 and top driving device
143 connections, the bottom end of drilling riser pipe 32 sequentially pass through get into after rotary joint 142, capstan head outer wall construction 11, floating drum 12 seabed with
Under, drilling riser pipe 32 is rigidity, is connected through a screw thread and is formed by several single-unit standpipes, and top driving device 143 is used for drilling riser pipe 32
Installation；The bottom end of production tube 33 is connected to drilling well, and the top of production tube 33 sequentially passes through floating drum 12, capstan head outer wall construction
11, after rotary joint 142 with the fixation piping connection on ship, for transporting the petroleum resources from offshore mining.
Anchor structure 50 is used to for mooring line being fixed on bottom, including anchor chain 51 and anchor chain separation adjusting connector 52, anchor chain point
It is installed on floating drum 12 from connector 52 is adjusted, the upper end of anchor chain 51 is installed on anchor chain separation adjusting connector 52, lower end is located at seabed.
Anchor chain 51 runs through anchor chain separation adjusting connector 52, and the effect of anchor chain separation adjusting connector 52 is to adjust the length of anchor chain 51, and adjust
The mooring force significantlyd change when the separation of section floating drum 12 and reconnection ensures structure safety.In the present embodiment, anchor chain 51 has three groups, often
Three anchor chains 51 of group are evenly distributed on 12 lower section of floating drum, separate for hull 100 with floating drum 12 using 12 center of floating drum as the center of circle
The mooring of floating drum 12.
The present invention is based on the FDPSO of separable inner cupola formula anchoring system to have the function of production of hydrocarbons, storage and transportation and drilling well, will
Drilling well piping and production piping arrangement rely on the detachable floating drum 12 that can be anchored to realize rigid piping in same capstan head 10
(drilling riser pipe 32) is separated with the underwater Layer Near The Sea Surface of flexible piping (production tube 33), copes with bad weather condition, is suitable for oil field
Early stage trial production and drilling well exploitation, the economic risk of oil and gas development is effectively reduced.
The effect of floating drum 12: on the one hand, entire liquid transfer system 30 is that it is relied on to be separated, on the other hand, in ship
After body 100 is separated with floating drum 12, floating drum 12 is capable of providing buoyancy to offset the power of anchoring.
It advanced optimizes, in the present embodiment, inner cupola formula anchoring system 200 further includes sleeve 20 and rotor-bearing system
60, sleeve 20 docks for realizing hull 100 and capstan head 10, and sleeve 20 is fixedly connected with hull 100, capstan head outer wall construction 11
It is installed in sleeve 20, rotor-bearing system 60 is installed between sleeve 20 and capstan head outer wall construction 11, capstan head outer wall construction 11
It is rotatablely connected by rotor-bearing system 60 and sleeve 20, hull 100 can be freely rotated around capstan head outer wall construction 11, form wind
Effect is marked, to keep active force suffered by FDPSO hull 100 minimum.Rotor-bearing system 60 includes rotor bearing 61 and rotating wheel
62, in the present embodiment, rotor bearing 61 and rotating wheel 62 respectively have 12, are uniformly looped around around capstan head 10, can be used for connecting
Capstan head 10 and sleeve 20, and limit that capstan head 10 is vertical and lateral displacement.
It advanced optimizes, in the present embodiment, capstan head outer wall construction 11 includes capstan head wall 111, support frame 112 and reinforces connecting
Fitting 113.Capstan head wall 111 is cylindrical shape, so that other components is placed wherein, with capstan head outer wall construction 11 together unitary rotation.
Support frame 112 is installed on 111 inside of capstan head wall, for reinforcing the structural strength of capstan head outer wall construction 11.Reinforce connector 113
It is installed on the bottom in 111 outside of capstan head wall, between capstan head wall 111 and sleeve 20, around capstan head wall 111, limits capstan head bottom
Portion it is circumferentially displaced.It advanced optimizes, in the present embodiment, floating drum cave mechanism 13 includes floating drum cave outer wall 131 and buoy connector
132, buoy connector 132 is installed on the upper end of floating drum cave outer wall 131.Floating drum cave outer wall 131 be it is up-thin-low-thick round table-like, float
The upper end of the shape of cylinder 12 and the shape adaptation of floating drum cave outer wall 131, floating drum 12 is installed on floating drum cave by buoy connector 132
In outer wall 131.It advanced optimizes, in the present embodiment, floating drum wall disposed inboard has floating drum transversum 125 and floating drum to indulge bone 126, is used for
Reinforce the structural strength of floating drum 12.
It advanced optimizes, in the present embodiment, floating drum 12 includes the inclined waterproof cabin 121 set gradually from top to bottom, level-one
Ballast tank 122, second level ballast tank 123 and three-level ballast tank 124.Inclined waterproof cabin 121 is located at 12 top of floating drum, cabin
Wall is located at 12 top a quarter of floating drum, and inclined waterproof cabin 121 plays the role of water proof in 32 separation process of drilling riser pipe.
Level-one ballast tank 122, second level ballast tank 123 and three-level ballast tank 124 are located at 121 lower section of inclined waterproof cabin, will float
The space of 12 lower section of cylinder is according to height trisection.The lower part bulkhead of inclined waterproof cabin 121 is ramp-like in dipping down, and inclined waterproof cabin
The depth of 121 peripheries is greater than intermediate depth, and in this way when 32 Yu Shuizhong of drilling riser pipe detaches floating drum 12, floating drum 12 carries out again close
Water therein is leak into when envelope can be deposited in around inclined waterproof cabin 121, it is avoided to enter inside floating drum 12.Multistage ballast is set
Water tank is for controlling snorkeling for floating drum 12, and wherein when level-one ballast tank damage, other ballast tanks remain to work on.It bores
Well standpipe 32 and production tube 33 sequentially pass through inclined waterproof cabin 121, level-one ballast tank 122, second level ballast tank 123 and three
Grade ballast tank 124.
It advanced optimizes, in the present embodiment, floating drum 12 further includes being installed on 122 lower part bulkhead of level-one ballast tank and brill
The coaxial hydraulic clamping manipulator 127 of well standpipe 32, hydraulic clamping manipulator 127 being capable of clamp or release drilling riser pipes 32.
It advanced optimizing, in the present embodiment, drilling riser pipe 32 includes marine riser 321, drilling rod 322 and sealed valve 323, every
Water pipe 321 is set in the periphery of drilling rod 322, and marine riser 321 and drilling rod 322 are through to operating location from the top of capstan head 10.
Marine riser 321 includes 3213 at top marine riser 3211, lower part marine riser 3212 and marine riser merogenesis.Carry out separation and reconnection work
When making, 3213 are located between the lower bulkhead and hydraulic clamping manipulator 127 of inclined waterproof cabin 121 at marine riser merogenesis, marine riser
3213 threaded connection place between marine riser single-unit at merogenesis, can disconnect and reconnection, top marine riser 3211 are positioned at water proof
3213 or more all marine risers at pipe merogenesis, lower part marine riser 3212 be at marine riser merogenesis 3213 it is below it is all every
Water pipe.Drilling rod 322 includes 3223 at top rod 3221, lower part drilling rod 3222 and drilling rod merogenesis.Carry out separation and reconnection operation
When, 3223 are located between the lower bulkhead and hydraulic clamping manipulator 127 of inclined waterproof cabin 121 at drilling rod merogenesis, at drilling rod merogenesis
3223 threaded connection place between drilling rod single-unit, can disconnect and reconnection, top rod 3221 are 3223 at drilling rod merogenesis
Above all drilling rods, lower part drilling rod 3222 are 3223 all drilling rods below at drilling rod merogenesis.Sealed valve 323 is located at
At marine riser merogenesis 3213 and drilling rod merogenesis between 3223, play closed under discrete state lower part drilling rod 3222 and lower part every
The effect of water pipe 3212, and a bayonet unit is carried, the opposite position between lower part drilling rod 3222 and lower part marine riser 3212 can be limited
It moves.
When needing to carry out the lock out operation of drilling riser pipe 32, hydraulic clamping manipulator 127 clamps lower part marine riser first
3212, it is fixed, top driving device 143 is cooperated, 3213 disconnect threaded connection at marine riser merogenesis, and top marine riser 3211 is
Drawable, sealed valve 323 is stuck, limits the relative displacement of lower part marine riser 3212 and lower part drilling rod 3222, so that lower part is bored
Bar 3222 is fixed, cooperates top driving device 143, and 3223 disconnect threaded connection at drilling rod merogenesis, and top rod 3221 is i.e. drawable.
Then hydraulic clamping manipulator 127 unclamps, and the separation of rigid drilling riser pipe 32 can be completed, to realize floating drum 12 and hull
100 separation.
When needing to carry out the reconnection operation of drilling riser pipe 32, floating drum 12 floats up to reconnection position, and hull 100 stretches out top
3223 at drilling rod 3221 to 12 inner drill rods merogenesis of floating drum, hydraulic clamping manipulator 127, which clamps lower part marine riser 3212, keeps it solid
Fixed, sealed valve 323 is stuck, the relative displacement of lower part marine riser 3212 and lower part drilling rod 3222 is limited, so that lower part drilling rod
3222 is fixed, cooperates top driving device 143, and 3223 re-start threaded connection at drilling rod merogenesis, completes the reconnection of drilling rod up and down.
Hull 100 is stretched out again 3213 at top marine riser 3211 to 12 inside marine riser merogenesis of floating drum, cooperate top driving device 143, every
3213 re-start threaded connection at water pipe merogenesis, complete the reconnection of marine riser up and down.Then 127 pine of hydraulic clamping manipulator
It opens, the reconnection of rigid drilling riser pipe 32 can be completed, to realize the reconnection of floating drum 12 Yu hull 100.
Liquid transfer system 30 further includes the watertight conduit 31 positioned at 12 center of floating drum, the upper end of watertight conduit 31 and second level
The upper bulkhead of ballast tank 123 is tightly connected, the lower bulkhead of lower end and three-level ballast tank 124 is tightly connected；Marine riser 321
Diameter is slightly less than watertight conduit 31, and drilling riser pipe 32 runs through watertight conduit 31, and the effect of setting watertight conduit 31 is to guide floating
Cylinder 12 is moved along snorkeling for drilling riser pipe 32, avoids drilling riser pipe 32 from colliding with 12 internal component of floating drum, and prevent from working as
When relative displacement occurs for drilling riser pipe 32 and watertight conduit 31, seawater penetrates into inside floating drum 12 from 12 bottom of floating drum.
It advanced optimizes, in the present embodiment, liquid transfer system 30 further includes oily pipe fixing device 34, oily pipe fixing device
34 are installed on the bottom of floating drum 12, and production tube 33 runs through oily pipe fixing device 34, and the effect of oily pipe fixing device 34 is to adjust
Relative direction of the production tube 33 when 12 bottom of floating drum is stretched out is controlled, so that production tube 33 is to external diffusion, while oil pipe is fixed
Device 34 is provided with a valve, opens and closes separation and reconnection for controlling production tube 33.It is three groups that production tube 33, which is divided, often
Group three, is evenly distributed on around floating drum 12, and be respectively positioned on the angular bisector of two adjacent groups anchor chain 51.
It advanced optimizes, in the present embodiment, gantry structure 40 is located at the top of capstan head, is made of a crossbeam and two supporting legs
Frame like structure, be for adapting to the distinct device needed for different designs require and the constructional device that is arranged, for it is plug-in other
Equipment, the present invention in other equipment can be capstan winch or electric-control system, specifically by design requirement determine, other equipment be hung on gantry knot
On the crossbeam of structure 40.
Hull 100 and floating drum 12 can be by GPS positionings, and under emergency work condition, intelligent control system can be according to 12 He of floating drum
The real-time position information of hull 100 regulates and controls ship orientation, it is made precisely to return to well location.Intelligent control system can be according to need simultaneously
Regulate and control the elastic state of hydraulic clamping manipulator 127, the open and-shut mode of sealed valve 323 and oil valves can control floating drum
12 inside ballast water volumes and by control anchor chain separation adjusting connector 52 adjust 51 length of anchor chain, to regulate and control snorkeling for floating drum 12
State.
The present invention is based on the working principle of the FDPSO of separable inner cupola formula anchoring system is as follows:
When common operating condition, under the influence of wind, wave, stream, hull 100 is acted on by weathercock effect, freely around inner cupola formula
Anchoring system 200 rotates, and makes the fore body of hull 100 forever towards minimum stress surface.
When meeting with floating ice under the operating condition of polar region, hull 100 can actively be rotated around inner cupola formula anchoring system 200, make hull 100
Fore body meet ice so that ice load suffered by hull 100 minimizes.
When meeting with bad weather condition, it is emergency work condition when such as tropical storm or thick ice, carries out detached job, drilling well at this time
Standpipe 32 stops circulation of drilling fluid, closes oil transportation tube valve, disconnects production tube 33, floating drum 12 is declined along drilling riser pipe 32,
Intelligence control system controls the ballast water of floating drum 12, and adjusts 51 length of anchor chain by control anchor chain separation adjusting connector 52, makes
At floating drum 12 dive to marine riser merogenesis 3213 be placed exactly in inclined waterproof cabin 121 lower bulkhead and hydraulic clamping manipulator 127
Between, carry out detached job.Hydraulic clamping manipulator 127 cooperates top driving device 143 to separate drilling rod 322 and marine riser 321, together
When sealed valve 323 is closed.When detaching top rod 3221 and top marine riser 3211, the inclined of floating drum 12 is first pumped it to
In waterproof cabin 121, the lower hatch door of inclined waterproof cabin 121 is closed, then is fully drawn out, the upper-deck cabin of inclined waterproof cabin 121 is closed
Door.So far, mask work terminates.After ship determines safety, cooperate intelligent control system, sail back and bore position,.Cooperate ship's fix
Function hull 100 stretches out top rod 3221, accurately docks with floating drum 12, is inserted by the upper hatch door of inclined waterproof cabin 121 floating
Cylinder 12, hydraulic clamping manipulator 127 cooperates top driving device 143 to complete the reconnection of drilling rod 322, then stretches out top marine riser 3211,
It is inserted into floating drum 12 by the upper hatch door of inclined waterproof cabin 121, hydraulic clamping manipulator 127 cooperates top driving device 143 to complete water proof
The reconnection of pipe 321.Intelligence control system controls the ballast water of floating drum 12, and adjusts anchor by control anchor chain separation adjusting connector 52
51 length of chain makes floating drum 12 float along top marine riser 3211, reinserts in floating drum cave mechanism 13, pass through buoy connector
132 are fixedly connected.Reconnection production tube 33 opens oil valves, opens sealed valve 323, and liquid transfer system 30 restores work
Make, capstan head 10 resets, and reconnection work is completed.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of FDPSO based on separable inner cupola formula anchoring system, including hull and inner cupola formula anchoring system, described interior
Turret mooring system includes capstan head, liquid transfer system and anchor structure；The liquid transfer system includes drilling riser pipe and life
Oil-producing pipe, which is characterized in that
The hull includes a moon pool, and the moon pool is vertical to run through the hull；
The capstan head includes capstan head outer wall construction, floating drum, floating drum cave mechanism, drilling cramp, and the capstan head outer wall construction is installed on described
In moon pool, the capstan head outer wall construction and the hull are rotatablely connected, and the floating drum cave mechanism is set to the capstan head outer wall knot
The lower part of structure, the floating drum are installed in the floating drum cave mechanism, and the floating drum can be with floating drum cave organizational separation；It is described
Drilling cramp includes frame body, rotary joint and top driving device, and the frame body is fixedly installed on the deck of the hull, and the rotation connects
Head is installed on the frame body center, and the top driving device is installed at the top of the frame body；
The top of the drilling riser pipe is connect with the top driving device, and the bottom end of the drilling riser pipe sequentially passes through the rotation and connects
Seabed or less is got into after head, capstan head outer wall construction, floating drum；The bottom end of the production tube is connected to drilling well, the top of production tube
End sequentially pass through after the floating drum, capstan head outer wall construction, rotary joint with the fixation piping connection on ship；
The anchor structure includes anchor chain and anchor chain separation adjusting connector, and the anchor chain separation adjusting connector is installed on the floating drum
On, the upper end of the anchor chain is installed on the anchor chain separation adjusting connector, lower end is located at seabed.
2. the FDPSO according to claim 1 based on separable inner cupola formula anchoring system, which is characterized in that in described
Turret mooring system further includes sleeve and rotor-bearing system, and the sleeve docks for realizing hull and capstan head, described
Sleeve is fixedly connected with the hull, and the capstan head outer wall construction is installed in the sleeve, and the rotor-bearing system includes
Rotor bearing and rotating wheel, the rotor bearing and rotating wheel are mounted between the sleeve and capstan head outer wall construction, described
Capstan head outer wall construction is rotatablely connected by the rotor bearing and rotating wheel and the sleeve, and the hull can be around the capstan head
Outer wall construction is freely rotated.
3. the FDPSO according to claim 1 based on separable inner cupola formula anchoring system, which is characterized in that described turn
Tower outer wall construction includes capstan head wall, support frame and reinforces connector, and the capstan head wall is cylindrical shape, the support frame installation
On the inside of the capstan head wall, the reinforcement connector is installed on the bottom on the outside of the capstan head wall, is located at the capstan head wall and set
Between cylinder, around the capstan head wall.
4. the FDPSO according to claim 1 based on separable inner cupola formula anchoring system, which is characterized in that described floating
Tong Xue mechanism includes floating drum cave outer wall and buoy connector, and the buoy connector is installed on the upper end of floating drum cave outer wall,
Floating drum cave outer wall is up-thin-low-thick round table-like, the shape adaptation of the shape of the floating drum and floating drum cave outer wall, institute
The upper end for stating floating drum is installed in the outer wall of the floating drum cave by the buoy connector.
5. the FDPSO according to claim 1 based on separable inner cupola formula anchoring system, which is characterized in that described floating
The inner wall of cylinder is disposed with floating drum transversum and floating drum indulges bone.
6. the FDPSO according to claim 1 based on separable inner cupola formula anchoring system, which is characterized in that described floating
Cylinder includes inclined waterproof cabin, level-one ballast tank, second level ballast tank and the three-level ballast tank set gradually from top to bottom；Institute
The lower part bulkhead for stating inclined waterproof cabin is ramp-like in dipping down, and the depth of inclined waterproof cabin periphery is higher than intermediate depth；
The drilling riser pipe and production tube sequentially pass through the inclined waterproof cabin, level-one ballast tank, second level ballast tank and three-level
Ballast tank.
7. the FDPSO according to claim 6 based on separable inner cupola formula anchoring system, which is characterized in that the brill
Well standpipe includes marine riser and drilling rod, and the marine riser is set in the periphery of the drilling rod, and the liquid transfer system further includes
The sealed connection of upper bulkhead, lower end and the three-level of watertight conduit, the upper end of the watertight conduit and the second level ballast tank
The lower bulkhead of ballast tank is tightly connected；The drilling riser pipe runs through the watertight conduit.
8. the FDPSO according to claim 7 based on separable inner cupola formula anchoring system, which is characterized in that it is described every
Water pipe includes at top marine riser, lower part marine riser and marine riser merogenesis, at the marine riser merogenesis between marine riser single-unit
Threaded connection place, can disconnect and reconnection, the top marine riser be at marine riser merogenesis more than all marine risers, institute
Stating lower part marine riser is all marine risers below at marine riser merogenesis；The drilling rod includes top rod, lower part drilling rod
At drilling rod merogenesis, threaded connection place at the drilling rod merogenesis between drilling rod single-unit, can be disconnected and reconnection, the top are bored
Bar be at drilling rod merogenesis more than all drilling rods, the lower part drilling rod be at drilling rod merogenesis all drilling rods below.
9. the FDPSO according to claim 8 based on separable inner cupola formula anchoring system, which is characterized in that described floating
Cylinder further include be installed on the bulkhead of level-one ballast tank lower part, the hydraulic clamping manipulator coaxial with the drilling riser pipe,
The hydraulic clamping manipulator being capable of drilling riser pipe described in clamp or release；When carrying out the separation or reconnection operation of drilling riser pipe,
Be respectively positioned at the marine riser merogenesis and at drilling rod merogenesis the inclined waterproof cabin lower part bulkhead and hydraulic clamping manipulator it
Between.
10. the FDPSO according to claim 1 based on separable inner cupola formula anchoring system, which is characterized in that the liquid
Body Transmission system further includes oily pipe fixing device, and the oil pipe fixing device is installed on the bottom of the floating drum, the production oil
Pipe is through the oily pipe fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206593.7A CN107933843B (en) | 2017-11-27 | 2017-11-27 | FDPSO based on separable inner cupola formula anchoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206593.7A CN107933843B (en) | 2017-11-27 | 2017-11-27 | FDPSO based on separable inner cupola formula anchoring system |
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| CN107933843A CN107933843A (en) | 2018-04-20 |
| CN107933843B true CN107933843B (en) | 2019-06-28 |
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| CN109018205B (en) * | 2018-08-21 | 2019-10-25 | 安徽亚太锚链制造有限公司 | It is a kind of can Fast Installation stable connection anchor chain |
| CN109850070B (en) * | 2019-02-27 | 2020-01-31 | 武汉理工大学 | Buoy releasing and recovering system based on separable internal turret mooring system |
| CN116767427B (en) * | 2023-07-31 | 2024-05-14 | 招商局重工（江苏）有限公司 | Mooring floating installation method for inner rotating tower |
| CN116803837A (en) * | 2023-07-31 | 2023-09-26 | 招商局重工（江苏）有限公司 | Single-point mooring system and installation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5860840A (en) * | 1996-08-02 | 1999-01-19 | Fmc Corporation | Disconnectable turret mooring system utilizing a spider buoy |
| US6494271B2 (en) * | 2001-04-25 | 2002-12-17 | Exxonmobil Upstream Research Company | Offshore floating production method |
| AU2006303284B2 (en) * | 2005-10-17 | 2013-02-14 | Single Buoy Moorings Inc. | Improved disconnectable buoyant turret mooring system |
| CA2684772C (en) * | 2007-05-11 | 2015-05-05 | Exxonmobil Upstream Research Company | Automatic ice-vaning ship |
| WO2010106132A2 (en) * | 2009-03-18 | 2010-09-23 | Single Buoy Moorings Inc. | Disconnectable mooring buoy with enhanced hydraulic coupling and latch |
| AU2011303838B2 (en) * | 2010-09-16 | 2015-04-23 | Single Buoy Moorings Inc. | Disconnectable turret mooring system |
| CN102092465B (en) * | 2011-01-28 | 2013-04-24 | 中国海洋石油总公司 | Double moon pool floating production drilling oil storage ship |
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