CN207737468U - A kind of dynamic positioning type floating production and storage facilities having both well workover function - Google Patents

Abstract

The utility model belongs to Naval Architecture and Ocean Engineering technical field, discloses a kind of dynamic positioning type floating production and storage facilities having both well workover function, is no longer equipped with single-point or multi-buoy mooring system, greatly reduces project initial cost, also shorten the project cycle.First, by optimized model line and arrangement, good sea-keeping and resistance (fluid and wind) performance are obtained；Second is that by optimizing dynamical system design and propeller allocation strategy, oil consumption when dynamic positioning is controlled；Third, according to marine environment feature select it is fixed first to or with weathercock effect wellhead manifold connection scheme；Fourth, by increasing well workover function, oil field entirety production cost is reduced, to obtain a kind of new herbicide being suitable for deep water marginal oil field or offshore oilfield production testing operation.

Description

A kind of dynamic positioning type floating production and storage facilities having both well workover function

Technical field

The utility model belongs to Naval Architecture and Ocean Engineering technical field, in particular to a kind of Floating Production oil storage Facility.

Background technology

Floating production and storage facilities (FPSO) is the main equipment of one kind of offshore and gas development, collection production, storage, emptying work( It can be in one.Conventional FPSO tonnages are larger, and configured in one piece is high, are not suitable for small-sized or marginal oil field, without propulsion system, using list Point mooring 1 or 2 mode long-term tillage of multipoint mooring are in a certain marine site operation.Conventional FPSO is required for tugboat to assist towage to target Marine site, and Attention problems could be realized under the auxiliary of working ship, complex procedures need to coordinate numerous resources.Single point mooring 1 Technology is monopolized by a few international corporation, and purchase cost is high, and delivery cycle is long, and maintenance and renovation uncontrollable factor is more, marine Mounting cost is high.Mooring line can be supplied by the country in 2 technology of multipoint mooring, but the keys such as hawser connector, chock, chain stopper Component domestic technique is also immature, it is still necessary to which import, purchase cost and Attention problems take relatively high.1 system of single point mooring is related Cost of investment up to entire FPSO projects one third or so.It is smaller for reserves, yield is relatively low, productive life is shorter Jack-up unit can be used in shallower depth of water marginal oil field, and is more than 100 meters of marginal oil field for the depth of water, or The production testing operation of early period is developed for deepwater, the FPSO costs of investment that traditional single point mooring 1 or multipoint mooring 2 position are high, Deployment cycle is long, deficiency in economic performance.The general 1-3 of oil field shaft mouth just needs repairing, and is usually all to rent drill ship to be positioned at well Workover treatment is carried out above mouthful, or even FPSO is needed to shift, influences oil field production, and the drill ship rental period is difficult to grasp, workover cost It is high.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of dynamic positioning type floating having both well workover function Oil storage facility is produced, single-point or multi-buoy mooring system are no longer equipped with, and is voluntarily positioned using dynamic positioning system, mooring system is saved System and installation or tieback relevant cost, reduce the construction investment of facility；With from boat ability, the mooring system of no complexity shifts It is convenient, it is easier to convert deployment on different oil fields；Operating water depth is unrestricted, and use scope is wide；It is equipped with simple workover module, it can With the well workover that do not stop production, workover treatment cost is reduced；It is equipped with modular process and produces module, it can be according to the production requirement in different oil fields It is adjusted flexibly.

The utility model is achieved by technical solution below：

A kind of dynamic positioning type floating production and storage facilities having both well workover function, including ship shape floating body, the ship shape are floating There is body double casing (3) and double walled floor (4), the ship shape floating body to use streamlined straight stem (29), the ship shape floating body Bow setting life building (22) and helicopter platform (221), life building (22) the top setting driver's cabin, the helicopter Platform (221) is installed at the top of life building (22) and stretches out bow；The ship shape floating body stern is arranged close to the position in Cargo Oil area Cabin (6), the cabin (6) are internal in main deck six main generator groups (7) arranged below；The stern of the ship shape floating body is set Flare tower (15) is set, the flare tower (15) is located remotely from the topside of the cabin (6) air inlet；

The dynamic positioning type floating production and storage facilities is configured with DP2 dynamic positioning systems or DP3 dynamic positioning systems；Institute It states ship shape floating body and is provided with six propellers (5), respectively No. 1 propeller (5), No. 2 propellers (5), No. 3 propellers (5), 4 Number propeller (5), No. 5 propellers (5), No. 6 propellers (5), wherein No. 1 propeller (5) and No. 2 propellers (5) are set to institute The bow of ship shape floating body is stated, wherein No. 5 propellers (5) and No. 6 propellers (5) are set to the stern of the ship shape floating body, and No. 5 Propeller (5) and No. 6 propellers (5) are arranged symmetrically for port and starboard, wherein No. 3 propellers (5) and No. 4 propellers (5) uses can Flexible all-direction propeller, No. 3 propellers (5) and No. 4 propellers (5) respectively outside Cargo Oil area on central fore-and-aft vertical plane close in ship Bow stern arrangement；

The topside of the ship shape floating body is provided with manifold platform (23), and the manifold platform (23) comes from well head for installing Extra large pipe extra large cable；

The moon pool (12) for lower waterproof casing or subsea blowout preventer, the moon pool are offered in the ship of the ship shape floating body (12) top is provided with modularization floating well workover system (10).

Wherein, the oil cargo capacity of the dynamic positioning type floating production and storage facilities is 50,000 tons or less.

Wherein, when dynamic positioning type floating production and storage facilities configures DP2 dynamic positioning systems, the cabin (6) sets It is set to one；

The main distribution board of the main electrical power plant of dynamic positioning type floating production and storage facilities is set as three sections of bus-bars, every section of confluence Row is powered by two main generator groups (7), and distributes to each propeller (5) of bow and stern, wherein No. 3 propulsions Device (5) and No. 4 propellers (5) are connected to same section of bus-bar；

Alternatively, the main distribution board of the main electrical power plant of dynamic positioning type floating production and storage facilities is set as six sections of bus-bars, often Section bus-bar is powered by a main generator group (7), and distributes to a propeller (5).

Wherein, when dynamic positioning type floating production and storage facilities configures DP3 dynamic positioning systems, the cabin (6) sets Three are set to, is connected by A60 fire separations bulkhead (61) between three cabins (6)；

The main distribution board of the main electrical power plant of dynamic positioning type floating production and storage facilities is set as three sections of bus-bars, every section of confluence Row is powered by two main generator groups (7), and distributes to each propeller (5) of bow and stern, wherein No. 3 propulsions Device (5) and No. 4 propellers (5) are connected to same section of bus-bar.

Wherein, when sea situation is preferable, start No. 3 propellers (5) and No. 4 propellers (5), No. 3 propellers (5) and No. 4 push away Into one in device (5) for promote mainly, another be in underrun or hot stand-by duty；

When sea situation is more severe, start each two propellers (5) of bow and stern, two in four propellers (5) To three to promote mainly, one to two is in underrun or hot stand-by duty；

When encountering extreme sea condition, starting six propellers (5), four to five in six propellers (5) is promote mainly, and one It is in underrun or hot stand-by duty to two.

Wherein, the extra large pipe extra large cable includes at least one of standpipe (241), cable (242), umbilical cables (243).

Wherein, for the manifold platform (23) using fixed head to formula, the manifold platform (23) and the ship shape floating body are rigid Property connection, it is described sea pipe extra large cable be fixed on the manifold platform (23) by quickly connecting kickoff mechanism.

Wherein, the manifold platform (23) uses swinging, and header turning tower structure (27) is provided on the manifold platform (23) With slip ring (28), the sea pipe extra large cable is installed on floating drum (26), and the floating drum (26) is fixed on by quickly connecting kickoff mechanism The manifold platform (23).

Wherein, the modularization floating well workover system (10) passes through the large-scale crane that is set on the ship shape floating body (14) self installation of workover rig is realized.

Wherein, distribution transformer system (19) is set on the main deck at the top of the cabin (6), at the top of the cabin (6) Central control system (16), emergency generation system (17), uninterruptible power supply (18) are set on technique deck.

The utility model has the beneficial effects that：

The dynamic positioning type floating production and storage facilities for having both well workover function of the utility model is no longer equipped with single-point or more Point anchoring system, and dynamic positioning system is used, project investment is reduced, the project cycle is shortened；By optimized model line and arrangement, obtain Obtain good sea-keeping and resistance (fluid and wind) performance；By optimizing dynamical system design and propeller allocation strategy, control Oil consumption when dynamic positioning；According to marine environment feature select it is fixed first to or with weathercock effect wellhead manifold connection side Case；By increasing well workover function, can not stop production well workover, reduce oil field entirety production cost, to obtain a kind of be suitable for deeply The new herbicide of water marginal oil field or offshore oilfield production testing operation.

Description of the drawings

Fig. 1 is the FPSO ship type side views of conventional belt single point mooring and multipoint mooring,

Fig. 2 is the ship type side view of dynamic positioning type floating production and storage facilities in the utility model embodiment,

Fig. 3 is the deck vertical view of dynamic positioning type floating production and storage facilities in the utility model embodiment,

Fig. 4 is the cabin interior arrangement of dynamic positioning type floating production and storage facilities in the utility model embodiment,

Fig. 5 is the engine-room layout of dynamic positioning type floating production and storage facilities in the utility model embodiment.

In figure：1- single point moorings, 2- multipoint moorings, 3- double casings, 4- double walled floors, 5- propellers, 6- cabins, 61- A60 fire separation bulkheads, 7- main generator groups, 8- heat stations, 9- inert gas system, 10- modularization floating well workover systems, 11- modules The operation areas change ROV, 12- moon pools, 13- technology processing systems, 14- large-scale cranes, 15- flare towers, 16- central control systems, 17- are emergent Electricity generation system, 18- uninterruptible power supplies, 19- distribution transformer systems, defeated system outside 20-, the troughs 21-, the life buildings 22-, 221- are straight Machine platform is risen, 23- manifold platforms, 241- standpipes, 242- cables, 243- umbilical cables, it is floating that 25- quickly connects kickoff mechanism, 26- Cylinder, 27- header turning tower structures, 28- slip rings (group), the streamlined straight stems of 29-.

Specific implementation mode

For that can further appreciate that the content, feature and effect of the utility model, the following examples are hereby given, and coordinates attached drawing Detailed description are as follows：

As shown in Figure 1, the positioning system of tradition FPSO is single point mooring 1 or multipoint mooring 2, single point mooring 1 is that monopolization is set It is standby, involve great expense, and 2 purchase cost of multipoint mooring and Attention problems take it is relatively high.

As shown in Figures 2 to 5, the utility model provides a kind of dynamic positioning type Floating Production storage having both well workover function Oily facility is no longer equipped with single point mooring 1 or 2 system of multipoint mooring, can carry out pilot production, extended testing system and the production development in oil field Operation is not necessarily to tugboat supplementary navigation, can be from boat to target marine site, and when installation or standpipe tieback assists without working ship, available Propeller 5 voluntarily positions, and realizes manifold tieback by included large-scale crane 14.

The dynamic positioning type floating production and storage facilities of the utility model belongs to small-sized FPSO, and tonnage is smaller, loading of oil cargo Amount is 50,000 tons or less.Therefore, equipment configured in one piece is low, and scale and tonnage more adapt to marginal oil field or small-sized oil field, and investment is excellent Gesture becomes apparent from.

The ship shape floating body of dynamic positioning type floating production and storage facilities uses the structure shape of double casing 3 and double walled floor 4 Formula, double casing 3 can prevent oil spill caused by side of a ship side collision, be also beneficial to the longitudinal strength of ship；Double walled floor 4 can To prevent stranded caused bottom to be stained, be conducive to improve longitudinal strength, convenient for the operation that clears the ship.Meanwhile dynamic positioning type floating The ship shape floating body of oil storage facility is produced using streamlined straight stem 29, streamlined straight stem 29 refers to the Forward of ship head columns, bow The perpendicular shape of molded line side profile, and bow cross section shape still carries the first type of streamlined features.29 energy of streamlined straight stem Enough ensure that Parametric Rolling caused by wave slamming, resistance to wave will not occur under the low speed of a ship or plane of dynamic positioning type floating production and storage facilities Property is preferable, while streamlined straight stem 29 can lengthen water line length, effectively reduce form drag, with the bulb-bowed ship of conventional belt It compares, the smooth water resistance of the low speed full formed ship of streamlined straight stem 29, which is arranged, can reduce by 3%~9%, and wave drag can be reduced 6%~44%.

Life building 22 and helicopter platform 221 are arranged in bow, life building dynamic positioning type floating production and storage facilities Driver's cabin is arranged in 22 tops, and helicopter platform 221 in 22 top of life building and stretches out bow by truss welding, and maximum possible is remote Separating process processing system 13.The life building 22 and helicopter platform 221 for being arranged in bow are in uptake, far from process Area, reduces the influence of hazardous gas and fuel gas, while being conducive to Helicopter Safety landing, and driver's cabin is arranged in life building 22 tops are conducive to navigation and the dynamic positioning operation of FPSO.Cabin 6 is set to ship by dynamic positioning type floating production and storage facilities Tail is conducive to reduce the noise in life building 22, improves crewman's comfort level, be also beneficial to the flat of ship trim close to the position in Cargo Oil area Weighing apparatus.Flare tower 15 is arranged on the quarter dynamic positioning type floating production and storage facilities, and in the side of a ship far from 6 air inlet of cabin Side.Arrangement flare tower 15 on the quarter it is at a disadvantage to, reduce the hazardous gas source on FPSO, be arranged far from cabin 6 into The topside in air port, reduces heat radiation, is conducive to the control of 6 inlet air temperature of cabin.

In main deck six main generator groups 7 arranged below inside cabin 6, for subsea wellheads, hull equipment, technique Equipment and dynamic positioning system provide electric power.The main electrical power plant of traditional FPSO is located on technique deck, and the utility model FPSO The main deck in hull cabin 6 is arranged hereinafter, first reducing the lateral wind area of full ship in main electrical power plant, reduces wind load； Second the height of C.G. for reducing full ship, by formulaKnown to (For the ship rolling period；B is ship It is wide；z_gFor full ship height of C.G.；GM is that initial stability of vessel is high, is height of the metancenter away from center of gravity), when center of gravity reduces, in order to will not Transition reduces rolling period, then needs appropriateness to increase the beam, to maintain the preferable sea-keeping of ship, this measure to also increase ship Floor space increases arrangement space；Three are vacated technique floor space, have had more trough 21, so that this programme is had more Potentiality are transformed, such as reserved water injection module.

Dynamic positioning type floating production and storage facilities is configured with DP2 dynamic positioning systems or DP3 dynamic positioning systems, power The auxiliary device and system of positioning system are non-monopolization, and initial outlay is relatively low, is conducive to pilot production, the extended testing system or short in oil field Phase produces.

Dynamic positioning type floating production and storage facilities is provided with six propellers 5,5, No. 2 propulsions of respectively No. 1 propeller The propeller 5 of propeller 5,6 of propeller 5,5 of propeller 5,4 of device 5,3, wherein No. 1 propeller 5 and No. 2 propellers 5 are set It is placed in bow, No. 1 propeller 5 and No. 2 propellers 5 are arranged symmetrically for port and starboard in the case where space allows；Wherein No. 5 propulsions Device 5 and No. 6 propellers 5 are set to stern, also serve as dynamic positioning and from boat propeller, No. 5 propellers 5 and No. 6 propellers 5 are a left side Starboard is arranged symmetrically, and the propeller 5 being arranged symmetrically can play effect spare mutually；Wherein at least No. 3 propellers 5 and No. 4 Propeller 5 uses scalable all-direction propeller, and No. 3 propellers 5 and No. 4 propellers 5 are respectively outside Cargo Oil area on central fore-and-aft vertical plane Close to the bow stern arrangement in ship.The propeller 5 for being set to bow and stern is separate as possible, can provide to the greatest extent Moment of turning ship is to optimize 5 power of propeller.Since the action center of environmental load is near midship, No. 3 propellers 5 and 4 Number bow stern side vector outside Cargo Oil area of propeller 5 is arranged in ship, be conducive to only to start under gas-saving mode 1 or 2 propellers 5 resist external force or moment of face, and are arranged in caused by central fore-and-aft vertical plane can eliminate the asymmetric torque of port and starboard Harmful effect, while the scalable all-direction propeller of use has the effect of paddle and rudder concurrently, rudder angle can reach ± 180 °, the thrust of paddle Action direction can export with all strength within the scope of 360 °, and positioning action is strong.No. 3 propellers 5 and No. 4 propellers 5 are located at flat Section, propeller (5) does not allow to stretch out flat section under sail or when dock repair, and scalable all-direction propeller both can be under sail Hull interior is withdrawn when with dock repair, also there can be higher propulsive efficiency in positioning.

When dynamic positioning type floating production and storage facilities configures DP2 dynamic positioning systems, then configuration, which is only required, individually sets Redundancy is had, does not require 6 subdivision of cabin, a 6 both economical practicality of cabin is set, six main generators are arranged in 6 inside of cabin Group 7.The main distribution board of main electrical power plant could be provided as three sections of bus-bars, and every section of bus-bar is powered by two main generator groups 7, and point Each propeller 5 of dispensing bow and stern, wherein No. 3 propellers 5 and No. 4 propellers 5 are connected to same section of bus-bar.Two For the feed of platform main generator group 7 to one section of bus-bar and two propellers 5, maximum failure form is that single loses two propellers 5. The main distribution board of main electrical power plant may be set to be six sections of bus-bars, and every section of bus-bar is powered by a main generator group 7, and is distributed To a propeller 5.For one feed of main generator group 7 to one section of bus-bar and a propeller 5, maximum failure form is single Lose a propeller 5.Wherein, three sections of bus-bars are more economical, and six sections of bus-bar operations are more flexible reliable and energy saving.

When dynamic positioning type floating production and storage facilities configures DP3 dynamic positioning systems, three cabins 6 of setting, three It is connected by A60 fire separations bulkhead 61 between cabin 6, forms subdivision and fire separation.The main distribution board of main electrical power plant is set as three Section bus-bar, every section of bus-bar is powered by two main generator groups 7, and distributes to each propeller 5 of bow and stern, In No. 3 propellers 5 and No. 4 propellers 5 be connected to same section of bus-bar.Single failure two propellers 5 of loss, both can guarantee anti- Fire separates, and the reliability of the both economical guarantee positioning of energy (subdivision and fire separation are more, and investment is bigger).

When sea situation is preferable, start in No. 3 propellers 5 and 5, No. 3 propellers 5 of No. 4 propellers and No. 4 propellers 5 one To promote mainly, another be in underrun or hot stand-by duty；When sea situation is more severe, start each the two of bow and stern Platform propeller 5, to promote mainly, one to two is in underrun or hot stand-by duty by two to three in four propellers 5；When When encountering extreme sea condition, start six propellers 5, four to five in six propellers 5 is promote mainly, and one to two in low negative Lotus runs or hot stand-by duty.Majority of case sea situation is preferable, and fewer situation sea situation is severe, and rare occasion is extreme sea Condition, power-positioning control system can provide 5 optimal distribution strategy of propeller according to sea situation intelligence, farthest optimize DP Total power consumption reduces oil field development cost to save oil consumption.

The topside of dynamic positioning type floating production and storage facilities is provided with manifold platform 23, for installing the sea from well head Pipe extra large cable.Extra large pipe extra large cable includes one or more in standpipe 241, cable 242, umbilical cables 243, realizes FPSO and wellhead platform Or the medium transmission between underwater well head, neutral tube 241 are used for power transmission, umbilical cord for oil, the transmission of gas and water, cable 242 Cable 243 is used for hydraulic pressure, control and the transmission of chemical agent.

In the comparatively gentle marine site of environmental condition, no matter FPSO is what is first to the power difference of DP consumption is little, height Marine site is oriented, it is first to reach the lower-powered effect of DP consumption that FPSO can fix it along primary climate direction.Dynamic positioning type is floating Formula, which produces oil storage facility, can rely on dynamic positioning system to fix head to the manifold platform 23 of topside uses fixed head to formula, i.e., Manifold platform 23 and FPSO ship shape floating bodies are rigidly connected, the arrangement of extra large pipe extra large cable is simple, the more, investment that can arrange quantity compared with Few, extra large pipe extra large cable is fixed on quickly connection kickoff mechanism 25 on the manifold platform 23 of topside successively, sea pipe sea when severe sea condition Cable can quick-release.In the more severe marine site of environmental condition, the manifold platform 23 of topside uses swinging, i.e. manifold platform 23 Upper setting header turning tower structure 27 and slip ring (group) 28, ship shape floating body carry out 360 ° by header turning tower structure 27 around topside manifold platform 23 The extra large pipe extra large cable of revolution, relative quiescent realizes medium transmission with dynamic ship shape floating body by slip ring (group) 28；Extra large pipe extra large cable collection In be mounted on floating drum 26 on, floating drum 26 is fixed on by quickly connecting kickoff mechanism 25 on manifold platform 23.Due to FPSO ship shape Floating body topside be provided that can comprehensive revolution manifold platform 23, hang on the scheme inside ship shape floating body with conventional floating drum 26 It compares, volume of compartment can be saved, remitted its fury caused by ship shape floating body internal structure opening is avoided, simultaneously because ship shape floating body energy 360 degree rotation, then FPSO ship shape floating body can be turned back to the environment that the moment ship shape floating body is subject to by dynamic positioning system and carry The minimum head of lotus is to so as to reduce DP type selections and power consumption, when encountering limit sea situation, side of a ship side float 26 can lead to It crosses quickly connection kickoff mechanism 25 to free rapidly, suspend in water 30-40m, the large-scale crane carried by FPSO ship shape floating bodies 14 can realize the salvaging of floating drum 26 and tieback.

Dynamic positioning type floating production and storage facilities is equipped with modularization floating well workover system 10, can within 400m the depth of water Operation, well workover depth is up to 3000m.FPSO ship shape floating bodies are provided with moon pool 12 in ship, are used for lower waterproof casing or underwater blowout prevention Device, modularization floating well workover system 10 is arranged in 12 top of moon pool, and the large-scale crane 14 that can be carried by FPSO is realized The self installation of workover rig.Modularization floating well workover system 10 can at least complete one of following functions：Subsea blowout preventer group and Operation is recycled in the decentralization of marine riser, carries out the routine works such as inspection pump using drilling rod or oil pipe, decentralization/recycling is with packer, peace The electric pump flow string of full valve is checked or is replaced, and lost tool and downhole production tubing string are salvaged, flush out shaft bottom sand setting or Rinse perforated interval, milling bridge plug, drilling out.Modularization floating well workover system 10, can not so that during FPSO operations Halt production well workover, it is not necessary to free FPSO or rent expensive drill ship well workover, realizing reduces Whole Life Cycle of Projects operation Cost effectiveness.

Below with a design example, the dynamic positioning type Floating Production storage for having both well workover function is provided the utility model The structure type and application effect of oily facility illustrate：

The example is directed to deep water marginal oil field in South China Sea, is used for the pilot production and production operation in oil field, the depth of water About 330 meters, producing well under totally 5 mouthfuls of water.The dynamic positioning type floating production and storage facilities is always about 192 meters, and waterline is about 184 Rice, about 32.2 meters of the beam, about 19.2 meters of moldeed depth, about 12.8 meters of designed draft；Ship shape has 4 knot of double casing 3 and double walled floor Structure, about 32000 tons of crude oil loading amount.Main hull sets two layers of deck, i.e. main deck and technique deck, and upper wave is to equipment in order to prevent Impact, technique deck is located at 5 meters of main deck or more, about 3800 square metres of the gross area, from head to tail, respectively inert gas system 9, 8,2 30 ton large-scale loop wheel machines 14 of heat stations, the operation areas modularization ROV 11, workover treatment area (setup module floating well workover system 10), technology processing system 13, trough 21, loading dock, central control system 16, emergency generation system 17, uninterruptible power supply 18 etc.. Main deck is sequentially arranged life building 22, manifold platform 23, distribution transformer system 19, cabin 6, outer defeated system 20, fire from head to tail Torch tower 15 etc..

Driver's cabin pushes up in life building 22, unobscured, and convenient for manipulating, helicopter platform 221 is located at life building 22 and pushes up and stretch Go out about 8 meters of bow, utmostly the technology processing system 13 far from process area, also allows for the safe landing of helicopter.It leans on Aft arrange that main generator group 7, height of C.G. reduce to improve about 0.2 meter of the high GM values of initial stability of vessel under main deck, Lateral wind area reduces about 150 square metres, distribution transformer system 19 and central control system 16, emergency generation system 17, not between Power-off source 18 arranges nearby at the top of cabin 6, to save cable length and convenient for the management and manipulation to cabin 6, outer defeated system 20 arrange larboard on the quarter, are danger source, and flare tower 15 is arranged far from the starboard of 6 air inlet of outer defeated system 20 and cabin, and 10 degree or so are outboard tilted, 15 mouthfuls of flare tower is located at 6 meters of outboard, reduces 15 heat radiation of flare tower to defeated system 20 outside stern With the influence of cabin 6.

This ship speed of a ship or plane v=10 sections, Froude number(g is acceleration of gravity, and L is captain), belongs to low Fast ship, need not design Bulb bows reduces wave making resistance, this ship is primarily targeted for fixed marine site and carries out production of hydrocarbons operation, usually The speed of a ship or plane is not needed, is the low speed of a ship or plane from endurance, therefore is designed as streamlined straight stem 29, streamlined straight stem 29 solves wave slamming Rolling caused by asymmetry, improves the sea-keeping of ship, and the optimization of underwater bow molded line then reduces under the low speed of a ship or plane Ship Resistance improves propulsive efficiency.

This example is equipped with DP2 dynamic positioning systems, is not necessarily to tugboat supplementary navigation, can be from boat to target job marine site, installation Or assisted without working ship when 26 tieback of floating drum, it is voluntarily positioned using propeller 5, and realized by included large-scale crane 14 Floating drum 26 is salvaged and tieback.

This data process system can resist 6.1m ariyoshi wave height in ± 30 ° of angle of heading, when the marine environment of duration is more than 6.1m Ariyoshi wave height meets with typhoon, then locking device that can be by hydraulic control and emergent shut-off valve, is cut rapidly within the short time Disconnected and safety shutdown sea pipe extra large cable channel, while floating drum 26 is discharged, realize that the quick-release of FPSO, FPSO withdraw operation from boat Area, extreme environment or typhoon later can be from boats to target job marine site, by 5 dynamic positioning of propeller, by carrying large-scale crane 14 caissons 26 realize self installation or from tieback, save engineering cost, flexible and convenient operation.

This shipowner power station is crude oil/diesel dual-fuel main generator group 7 of 6 5000kW, and bow can with 2 sets~3000kW Flexible all-direction propeller 5 and 1 set~3000kW tunnel types sideways-acting propeller 5, stern match 2 sets~3000kW all-direction propellers The scalable all-direction propellers of 5 and 1 sets~3000kW 5.Main distribution board is divided into three sections, and each section of panel is by 2 main generators 7 power supply of group, and feed and give bow stern each propeller 5.Under relatively low and medium sea situation, can only start No. 3 and No. 4 can stretch Contracting all-direction propeller 5, main electrical power plant operates in gas-saving mode.It is with the stormy waves stream Joint Distribution of South Sea deep water marginal oil field Example, the low sea situation of 1.0 meters of ariyoshi wave height, wind speed 6.0m/s and flow velocity 0.2m/s occupies for about 50% activity duration, in the sea situation Under, start 2 scalable all-direction propellers 5, only about 1080 kilowatts of the general power of dynamic positioning consumption is converted to oil consumption only about 5 ton days；1.0 meters~2.0 meters of ariyoshi wave height, the medium sea situation of 0.2~0.3m/s of wind speed 6.0m/s~10.0m/s and flow velocity account for According to about 30% activity duration, which starts 2 scalable all-direction propellers 5, and the general power of dynamic positioning consumption is only about 1800 kilowatts, it is converted to oil consumption only about 9 ton days；2.0~3.5 meters of ariyoshi wave height, wind speed 10.0m/s~14.0m/s and flow velocity The severe sea condition of 0.3~0.5m/s occupied for about 15% activity duration, which starts 4 propellers 5 (each 2 of bow stern), The general power of dynamic positioning consumption is about 3980 kilowatts, and it is about 18.1 ton days to be converted to oil consumption；Under the sea situation for occupying 95%, The fuel oil of dynamic positioning consumption is averaged only about 8 ton days, and accounting is relatively low in FPSO cost of business operation.

The maximum liquid processing capacity of wherein technology processing system 13 is about 16800 cubic metres/day, and maximum water treatment capacity is about For 16000 cubic metres/day, maximum oil processing capacity is about 2500 cubic metres/day, 15 days outer defeated periods.The logistics of 5 mouthfuls of producing wells It is pooled to central manifold from underwater well head production tree, FPSO topside manifold platforms are then transported to by 27 " subsea production pipelines 23.The input and output such as the electric power of well head, signal, hydraulic pressure, chemical agent are relied on the cable 242 or umbilical cord of topside manifold platform 23 Cable 243.23 top installation slip ring (group) 28 of manifold platform, the connection production slip ring 28 of standpipe 241, cable 242 connect electric slip ring 28, Control signal in umbilical cables 243 connects optical fiber slip ring 28, and the hydraulic pressure in umbilical cables 243 connects public slip ring with chemical agent 28, realize that the medium between FPSO and well head transmits by slip ring 28.By taking the South Sea as an example, belong to adverse circumstances marine site, FPSO exists Starboard side setting manifold platform 23 in the ship, FPSO centered on manifold platform 23 and can pass through header turning tower structure 27 thereon Comprehensive revolution is carried out, sets Dynamic Positioning Control System precision as ± 5 degree and ± 3 meters, when (wave) angle is more than 5 degree or partially to FPSO windward 3 meters from 23 center of manifold platform, then dynamic positioning system will by thrust calculate and 5 optimum distribution strategy of propeller, make FPSO be turned back to moment environmental load it is minimum it is first to.

Since main electrical power plant is arranged in ship shape floating body cabin 6, hereinafter, vacating more floor space, this example still has main deck About 300 square metres of floor space can such as increase associated gas recycling for utilizing according to the flexible expanding function of the oil field condition of production System or water injection module etc..

Wherein well workover system is modularization floating well workover system 10, and hook load 4500kN, derrick height is about 48 meters； The well workover system is modularized design, and the large-scale crane 14 for being 30 tons using two included crane capacities realizes peace installation and dismantling It removes.Conventional well workover needs to shift FPSO, or rents drill ship operation, and FPSO normal production operations when this programme well workover, real The operating mode of production and well workover common operational is showed, functional diversities can meet several work demand, improve the applicability of equipment With competitiveness.

The advantages of the foregoing describe the basic principles and main features of the utility model and present invention applications.The utility model It is not limited by above-mentioned embodiment, the only the principle of the present invention described in above-mentioned embodiment and specification is not departing from Under the premise of general principles and range, application example can also have various changes and modifications, such as subject oil field yield In the different or adjustment outer defeated period, when crude oil tank volume of compartment demand changes, Ship's Dimension can adjust on demand；Or it is equipped with processing energy The different process handling module of power；Or the extra large pipe extra large cable quantity and form that configuration is different；Or different well workovers is equipped with (as done Formula well workover system) system；These changes and improvements are both fallen in the range of claimed invention.The requires of the utility model is protected Shield range is defined by appended claims and its equivalent.

Claims (10)

1. a kind of dynamic positioning type floating production and storage facilities having both well workover function, including ship shape floating body, which is characterized in that institute Stating ship shape floating body has double casing (3) and double walled floor (4), and the ship shape floating body uses streamlined straight stem (29), described Driver's cabin, institute is arranged in bow setting life building (22) of ship shape floating body and helicopter platform (221), life building (22) top Helicopter platform (221) is stated to be installed at the top of life building (22) and stretch out bow；The ship shape floating body stern is close to Cargo Oil area Cabin (6) is arranged in position, and the cabin (6) is internal in main deck six main generator groups (7) arranged below；The ship shape floating body Stern setting flare tower (15), the flare tower (15) is located remotely from the topside of the cabin (6) air inlet；

The dynamic positioning type floating production and storage facilities is configured with DP2 dynamic positioning systems or DP3 dynamic positioning systems；The ship Shape floating body is provided with six propellers (5), respectively No. 1 propeller (5), No. 2 propellers (5), No. 3 propellers (5), No. 4 push away Into device (5), No. 5 propellers (5), No. 6 propellers (5), wherein No. 1 propeller (5) and No. 2 propellers (5) are set to the ship The bow of shape floating body, wherein No. 5 propellers (5) and No. 6 propellers (5) are set to the stern of the ship shape floating body, and No. 5 propulsions Device (5) and No. 6 propellers (5) are arranged symmetrically for port and starboard, wherein No. 3 propellers (5) and No. 4 propellers (5) are using scalable All-direction propeller, No. 3 propellers (5) and No. 4 propellers (5) respectively outside Cargo Oil area on central fore-and-aft vertical plane close to the ship in ship First stern arrangement；

The topside of the ship shape floating body is provided with manifold platform (23), and the manifold platform (23) is for installing the sea from well head Pipe extra large cable；

The moon pool (12) for lower waterproof casing or subsea blowout preventer, the moon pool (12) are offered in the ship of the ship shape floating body Top is provided with modularization floating well workover system (10).

2. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, the oil cargo capacity of the dynamic positioning type floating production and storage facilities is 50,000 tons or less.

3. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, when dynamic positioning type floating production and storage facilities configures DP2 dynamic positioning systems, the cabin (6) is set as one；

The main distribution board of the main electrical power plant of dynamic positioning type floating production and storage facilities is set as three sections of bus-bars, every section of bus-bar by Two main generator group (7) power supplies, and each propeller (5) of bow and stern is distributed to, wherein No. 3 propellers (5) and No. 4 propellers (5) are connected to same section of bus-bar；

Alternatively, the main distribution board of the main electrical power plant of dynamic positioning type floating production and storage facilities is set as six sections of bus-bars, every section of remittance Stream row is powered by a main generator group (7), and distributes to a propeller (5).

4. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, when dynamic positioning type floating production and storage facilities configures DP3 dynamic positioning systems, the cabin (6) is set as three, It is connected by A60 fire separations bulkhead (61) between three cabins (6)；

The main distribution board of the main electrical power plant of dynamic positioning type floating production and storage facilities is set as three sections of bus-bars, every section of bus-bar by Two main generator group (7) power supplies, and each propeller (5) of bow and stern is distributed to, wherein No. 3 propellers (5) and No. 4 propellers (5) are connected to same section of bus-bar.

5. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, when sea situation is preferable, starts No. 3 propellers (5) and No. 4 propellers (5), in No. 3 propeller (5) and No. 4 propellers (5) One for promote mainly, another be in underrun or hot stand-by duty；

When sea situation is more severe, start each two propellers (5) of bow and stern, two to three in four propellers (5) Platform is to promote mainly, and one to two is in underrun or hot stand-by duty；

When encountering extreme sea condition, starting six propellers (5), four to five in six propellers (5) is promote mainly, and one to two Platform is in underrun or hot stand-by duty.

6. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, the sea pipe extra large cable includes at least one of standpipe (241), cable (242), umbilical cables (243).

7. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, the manifold platform (23) is using fixed first to formula, the manifold platform (23) and ship shape floating body rigid connection, institute It states extra large pipe extra large cable and is fixed on the manifold platform (23) by quickly connecting kickoff mechanism.

8. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, the manifold platform (23) uses swinging, and header turning tower structure (27) and slip ring are provided on the manifold platform (23) (28), the extra large pipe extra large cable is installed on floating drum (26), and the floating drum (26) is fixed on the pipe by quickly connecting kickoff mechanism Remittance platform (23).

9. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, the modularization floating well workover system (10) realizes well workover by the large-scale crane (14) being set on the ship shape floating body The self installation of equipment.

10. a kind of dynamic positioning type floating production and storage facilities having both well workover function according to claim 1, feature It is, distribution transformer system (19), the technique deck at the top of the cabin (6) is set on the main deck at the top of the cabin (6) Upper setting central control system (16), emergency generation system (17), uninterruptible power supply (18).