CN104890820A - Floating liquefied natural gas production, storage and unloading device adaptive to adverse sea conditions - Google Patents
Floating liquefied natural gas production, storage and unloading device adaptive to adverse sea conditions Download PDFInfo
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- CN104890820A CN104890820A CN201510378909.5A CN201510378909A CN104890820A CN 104890820 A CN104890820 A CN 104890820A CN 201510378909 A CN201510378909 A CN 201510378909A CN 104890820 A CN104890820 A CN 104890820A
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Abstract
The invention relates to a floating liquefied natural gas (FLNG) production, storage and unloading device adaptive to adverse sea conditions, comprising a boat body, FLNG upper equipment arranged on a boat body deck, a cargo hold arranged in the boat body, an inner turret single-point cabin arranged at the inner head part of the boat body, an inner turret single-point system arranged in the single-point cabin, and a propelling system arranged at the tail part of the boat body, wherein the FLNG upper equipment and the cargo hold are used for realizing basic functions of production, storage and unloading of the production, storage and unloading device; the inner turret single-point system has a single-point positioning function and can perform single-point disengagement and tie-back under adverse sea conditions; the propelling system comprises multiple pieces of full circle swinging propelling equipment and is used for providing self-propulsion power of the production, storage and unloading device, and can adjust an included angle between the boat body and a wave direction or wind direction during transmission operation. According to the floating liquefied natural gas production, storage and unloading device, quick disengagement and tie-back can be realized, under the adverse sea conditions, such as typhoon, self-propulsion by the propelling system of the device can be performed to get away from a sea area where the typhoon passes, and safety of all systems of the device and workers is effectively protected.
Description
Technical field
The present invention relates to offshore natural gas and produce storage handler field, particularly relate to a kind of Floating Liquefied Natural Gas adapting to severe sea condition and produce storage handler.
Background technology
It is integrate the pretreatment of offshore natural gas, liquefaction, storage, outer defeated novel surface unit that Floating Liquefied Natural Gas produces storage handler (be called for short FLNG, also claim LNG FPSO).As emerging offshore natural gas field Floating Production device by numerous iea and Gas Company pay close attention to and carry out R and D.Far-reaching extra large gas exploitation adopts FLNG technology, does not only take land space, the residence that is far from the crowd, safety and environmental protection and economy is higher.Its LNG product is transported to the FSRU in terminal or coastal waters on road by shuttle carrier.
FLNG can produce normally under comparatively gentle environmental conditions, the outer operation such as defeated, but under severe sea condition condition, such as typhoon condition, will face many designs and operation challenge.The intensity of hull structure and mooring system and stability according to most hazardous environment condition design, and will can meet the inherently safe under device does not free situation.When typhoon closes on, all personnel all withdraws, and in unattended situation, the process of the empty cabin heating of the isolation between LNG cargo hold and cargo hold boil-off gas (BOG) will be difficult to carry out.If freed by FLNG device, and withdrawing the marine site of typhoon process together with ship's staff, will be an attainable method.
The top production system of FLNG is very complicated, and the operating efficiency of equipment component is relevant to the exercise performance of hull with power consumption, the motion amplitude of hull and acceleration/accel its operating efficiency larger lower, even can cause normally working.Therefore, the parameters such as the rolling of conservative control hull, pitching, heave are needed.
Salt water cooling system is that FLNG normally produces indispensable component part.The water intake system of FLNG have large discharge, low water temperature, simple and reliable, easy to maintenance, be easy to the particular/special requirement of upgrading.
See patent application number is the Chinese patent " a kind of large-scale Floating Liquefied Natural Gas produces storage handler " of 201410561804.9, comprises hull and is arranged on the FLNG top facility in deck in ship structure; Hull arranges fore peak tank, inner cupola single-point cabin, LNG cabin, LPG cabin, condensation cargo tank, slop tank, fresh water tank, diesel oil tank and after peak tank successively from stem to ship stern; FLNG top facility comprises the berthing accommodation and flare stack that are arranged in hull bow, and from stem to defeated module, liquefaction and refrigeration module, reserved module, power station module, electric equipment compartment module, loading dock, life building and LPG and gas condensate stern conveying device the subsea production system control module of ship stern modular arrangement, pre-processing module, LPG recycling module, propane pre-cooling module, compress fuel gas module, LNG.
This patent has comparatively excellent production storage unloading system, but is facing under severe sea condition, after personnel withdraw, is difficult to guarantee to isolate the safe operation of empty cabin heating system and the normal process of BOG between LNG cargo hold.Therefore; a kind of liquefied natural gas (LNG) production storage handler that can adapt to severe sea condition of offshore oil and gas production active demand; can realize inclement weather free temporarily from boat withdraw and confirmation safety after tieback, to protect Jobs on the sea personnel and each systems face inclement weather of device as the safety of typhoon.
In view of above-mentioned defect, creator of the present invention obtains this creation finally through long research and practice.
Summary of the invention
The object of the invention is to, provide a kind of Floating Liquefied Natural Gas adapting to severe sea condition to produce storage handler, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is, a kind of Floating Liquefied Natural Gas adapting to severe sea condition is provided to produce storage handler, comprise hull, stem is arranged in the FLNG top equipment be arranged in described deck in ship structure, the cargo hold be arranged in described hull, described hull inner cupola single-point cabin and the inner cupola Single-point system be arranged in described single-point cabin and be arranged at the propulsion system of described hull afterbody, wherein
Described FLNG top equipment and described cargo hold store up in order to the production realizing described production storage handler the basic function unloaded;
Described inner cupola Single-point system has One-Point Location function, and can carry out freeing and tieback of single-point under severe sea condition condition;
Described propulsion system comprises multiple stage full circle swinging propulsion equipment, in order to provide described production storage handler from the power of boat, and outside transporting operation time, the described hull described in propulsion system adjustable and wave to or wind direction between angle.
The cargo hold of described production storage handler adopts double cabin to arrange, be divided into left and right cargo hold, centre is longitudinal cofferdam, and the bottom of longitudinal cofferdam is set to ballast chamber.
Described cargo hold is included in from the LNG cabin that bow to stern is arranged successively, LPG cabin, condensation cargo tank, slop tank, fresh water tank and diesel oil tank in described hull, to form the warehousing system of described production storage handler.
Described FLNG top equipment comprise be arranged in hull stem life building, hull afterbody flare stack, and from bow to defeated module, liquefaction and refrigeration module, reserved module, power station module, electric equipment compartment module, loading dock and LPG and the defeated module of gas condensate stern the subsea production system control module of stern modular arrangement, pre-processing module, LPG recycling module, propane pre-cooling module, compress fuel gas module, LNG, to form production pretreatment system and the uninstalling system of described production storage handler.
Described production storage handler is provided with the topside water intake system in order to provide low temperature seawater to top production facilities, and described topside water intake system comprises submergence type electric centrifugal pump and is arranged at topside standpipe and the water intaking flexible pipe that described electric centrifugal pump imports and exports two ends.
Described water intaking flexible pipe is the length often saving 10m, can store, and can be connected to appropriate depth under water more one by one by joint from being recycled to deck under water.
Described propulsion system comprises 2 ~ 4 full circle swinging propulsion equipments, can make described production storage handler device after freeing with the speed navigation of 7 ~ 9 joints.
Described life building is arranged at the stem of described hull, and is provided with in described life building between operator's compartment and navigational equipment, and top is provided with radar mast, magnetic compass and communication antenna.
Preferably, described hull stem is also provided with collision compartment, and after described inner cupola Single-point system is arranged at described collision bulkhead.
Preferably, the molded breadth of described hull is 1.60 ~ 1.75 with the scope of the ratio of moldeed depth, and under normal operation sea conditions, the roll angle single width significant valve of hull is not more than 3.5 °.
Preferably, described hull is also provided with multiple loop wheel machine.
Beneficial effect of the present invention is compared with the prior art:
(1) the inner cupola Single-point system described in can realize under quick-release and tieback, severe sea condition as During Typhoon can lean on the affiliated propulsion system of self to sail out of typhoon through marine site with the speed of a ship or plane that 7 ~ 9 save;
(2) quick underwater adopting topside water intake system acquisition low temperature seawater also can realize intake pipe reclaims and tieback;
(3) effectively control ship motion parameter by principal dimensions selection and Alignment Design etc., to guarantee the operating efficiency of top production system within the acceptable range, and reduce energy ezpenditure.
Accompanying drawing explanation
Fig. 1 is the side-looking structural representation that the present invention adapts to the Floating Liquefied Natural Gas production storage handler of severe sea condition;
Fig. 2 is the schematic diagram that the present invention adapts to the cargo hold midship section of the Floating Liquefied Natural Gas production storage handler of severe sea condition;
Fig. 3 is the schematic diagram of topside water intake system in hull that the present invention adapts to the Floating Liquefied Natural Gas production storage handler of severe sea condition.
Detailed description of the invention
Below, embodiments of the present invention will be described with reference to the accompanying drawings.In embodiments, the part of same configuration uses identical Reference numeral and omits and describes.
Consult Fig. 1, the Floating Liquefied Natural Gas adapting to severe sea condition for the present invention produces the side-looking structural representation storing up handler; Composition graphs 2, adapts to the schematic diagram of the cargo hold midship section of the Floating Liquefied Natural Gas production storage handler of severe sea condition for the present invention.As shown in FIG., the inner cupola single-point cabin 11 that described production storage handler comprises hull 1, bow portion is arranged in the FLNG top equipment 2 be arranged on described hull 1 deck, the cargo hold 3 be arranged in described hull 1, described hull 1 and the inner cupola Single-point system (not shown) be arranged in described single-point cabin 11 and be arranged at the propulsion system 4 of described hull 1 afterbody.Wherein,
Described FLNG top equipment 2 and described cargo hold 3 store up in order to the production realizing described production storage handler basic function such as unloading;
Described inner cupola Single-point system has One-Point Location function, and can carry out the quick-release of single-point and the tieback after confirming safety under severe sea condition condition;
Described propulsion system 4 comprises 2 ~ 4 full circle swinging propulsion equipments, in order to the power providing described production storage handler certainly to navigate, device can be made after freeing with the speed navigation of 7 ~ 9 joints, and outside transporting operation time, described propulsion system 4 have concurrently hull 1 described in adjustment and wave to or wind direction between angle, make described production storage handler be in favourable position.
It is worthy of note, described cargo hold 3 is included in from the LNG cabin (liquified natural gas tank) that bow to stern is arranged successively, LPG cabin (liquified petroleum gas tank), condensation cargo tank, slop tank, fresh water tank and diesel oil tank in described hull 1, the warehousing system of the production storage handler described in formation.
Described FLNG top equipment 2 comprise be arranged in hull 1 stem life building 21, hull 1 afterbody flare stack 23, and from bow to defeated module, liquefaction and refrigeration module, reserved module, power station module, electric equipment compartment module, loading dock and LPG and the defeated module of gas condensate stern the subsea production system control module of stern modular arrangement, pre-processing module, LPG recycling module, propane pre-cooling module, compress fuel gas module, LNG, to form production pretreatment system and the uninstalling system of described production storage handler.
Pretreatments such as depickling, demercuration being carried out to the unstripped gas from sea, dewater can be realized, or separable go out gas condensate and LPG, natural fuels is converted into liquid state (LNG) by gaseous state the most at last, be stored in described cargo hold 3, and gas condensate, LPG and LNG are transported on shuttle carrier by the outer communication system that can be carried by device.
Wherein, described life building 21 is arranged at the stem of described hull 1, and is provided with between operator's compartment and navigational equipment in described life building 21, and top is provided with radar mast, magnetic compass and communication antenna etc.Such layout not only makes inhabitation place be in upwind all the time, reduces the injury to personnel, and have the good visual field when operational configuration when there is the dangerous situations such as gas diffusion, fire.
As shown in Figure 2, the cargo hold 3 of described production storage handler adopts double cabin to arrange, be divided into left and right cargo hold 3, centre is longitudinal cofferdam 5.In order to not make the temperature of middle longitudinal cofferdam 5 bulkhead too low, the bottom of longitudinal cofferdam 5 being set to ballast chamber, effective control temperature field distribution, improving the alerting ability that hull 1 inner casing grade of steel is selected.
Described hull 1 stem is also provided with collision compartment 12, and after described inner cupola Single-point system is arranged at described collision compartment 12 wall, and described hull 1 is also provided with multiple loop wheel machine 22.
Consult Fig. 3, the Floating Liquefied Natural Gas adapting to severe sea condition for the present invention produces the schematic diagram of topside water intake system in hull storing up handler.As shown in FIG., described production storage handler is also provided with the topside water intake system 6 in order to provide low temperature seawater to top production facilities, described topside water intake system 6 comprises submergence type electric centrifugal pump 61 and is arranged at topside standpipe 62 and the water intaking flexible pipe 63 that described electric centrifugal pump 61 imports and exports two ends, described water intaking flexible pipe 63 is designed to the length of often saving 10m, can store from being recycled to deck under water fast by joint, and appropriate depth under water can be connected to again one by one.Described topside water intake system 6 can obtain the low temperature seawater at 100m ~ 200m depth of water place, for top production system provides cooling media.Before freeing navigation, described water intaking flexible pipe 63 can store from being recycled under water deck, and after single-point tieback, described water intaking flexible pipe 63 can be connected to appropriate depth under water one by one.And described topside water intake system 6 can in the one-sided setting of described hull 1, or multiple, or single, be not limited to this.
And in the present embodiment, the molded breadth of described hull 1 is 1.60 ~ 1.75 with the scope of the ratio B/D of moldeed depth, under normal operation sea conditions, the roll angle single width significant valve of hull 1 is not more than 3.5 °.
The principal dimensions of described production storage handler is selected to have taken into full account the kinematic parameter such as rolling, pitching, heave being reduced in severe sea condition condition lower hull 1, to guarantee the operating efficiency of top production system within the acceptable range, and reduces energy ezpenditure.
Described production storage handler in the present embodiment is positioned at operation marine site by the inner cupola Single-point system described in hull 1 stem, under severe sea condition condition, such as during typhoon, can realize the quick-release of single-point.Described production storage handler after freeing sails out of typhoon through marine site by the propulsion system 4 be located at belonging to afterbody, and the speed of a ship or plane 7 ~ 9 saves.After typhoon, again Zi navigating to operation marine site tieback to Single-point system and resuming production.
Like this, described inner cupola Single-point system can realize under quick-release and tieback, severe sea condition as During Typhoon can lean on the propulsion system 4 as described in self to sail out of typhoon through marine site with the speed of a ship or plane that 7 ~ 9 save; Employing topside water intake system 6 obtains low temperature seawater and can realize quick underwater recovery and the tieback of intake pipe; Selected by principal dimensions and Alignment Design etc. effectively controls hull 1 kinematic parameter, to guarantee the operating efficiency of top production system within the acceptable range, and reduces energy ezpenditure.
Above-describedly being only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that the claims in the present invention limit to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. the Floating Liquefied Natural Gas adapting to severe sea condition produces storage handler, it is characterized in that, comprise hull, stem is arranged in the FLNG top equipment be arranged in described deck in ship structure, the cargo hold be arranged in described hull, described hull inner cupola single-point cabin and the inner cupola Single-point system be arranged in described single-point cabin and be arranged at the propulsion system of described hull afterbody, wherein
Described FLNG top equipment and described cargo hold store up in order to the production realizing described production storage handler the basic function unloaded;
Described inner cupola Single-point system has One-Point Location function, and can carry out freeing and tieback of single-point under severe sea condition condition;
Described propulsion system comprises multiple stage full circle swinging propulsion equipment, in order to provide described production storage handler from the power of boat, and outside transporting operation time, the described hull described in propulsion system adjustable and wave to or wind direction between angle.
2. the Floating Liquefied Natural Gas adapting to severe sea condition as claimed in claim 1 produces storage handler, it is characterized in that, the cargo hold of described production storage handler adopts double cabin to arrange, is divided into left and right cargo hold, centre is longitudinal cofferdam, and the bottom of longitudinal cofferdam is set to ballast chamber.
3. the Floating Liquefied Natural Gas adapting to severe sea condition as claimed in claim 2 produces storage handler, it is characterized in that, described cargo hold is included in from the LNG cabin that bow to stern is arranged successively, LPG cabin, condensation cargo tank, slop tank, fresh water tank and diesel oil tank in described hull, to form the warehousing system of described production storage handler.
4. the Floating Liquefied Natural Gas adapting to severe sea condition as claimed in claim 3 produces storage handler, it is characterized in that, described FLNG top equipment comprises the life building being arranged in hull stem, the flare stack of hull afterbody, and from bow to the subsea production system control module of stern modular arrangement, pre-processing module, LPG recycling module, propane pre-cooling module, compress fuel gas module, the outer defeated module of LNG, liquefaction and refrigeration module, reserved module, power station module, electric equipment compartment module, loading dock, with LPG and the defeated module of gas condensate stern, to form production pretreatment system and the uninstalling system of described production storage handler.
5. the Floating Liquefied Natural Gas adapting to severe sea condition as claimed in claim 4 produces storage handler, it is characterized in that, described production storage handler is provided with the topside water intake system in order to provide low temperature seawater to top production facilities, and described topside water intake system comprises submergence type electric centrifugal pump and is arranged at topside standpipe and the water intaking flexible pipe that described electric centrifugal pump imports and exports two ends.
6. the Floating Liquefied Natural Gas adapting to severe sea condition as claimed in claim 5 produces storage handler, and it is characterized in that, described water intaking flexible pipe is the length often saving 10m, can store, and can be connected to appropriate depth under water more one by one by joint from being recycled to deck under water.
7. the Floating Liquefied Natural Gas of the adaptation severe sea condition as described in claim 2 or 6 produces storage handler, it is characterized in that, described propulsion system comprises 2 ~ 4 full circle swinging propulsion equipments, can make described production storage handler device after freeing with the speed navigation of 7 ~ 9 joints.
8. the Floating Liquefied Natural Gas adapting to severe sea condition as claimed in claim 4 produces storage handler, it is characterized in that, described life building is arranged at the stem of described hull, and is provided with in described life building between operator's compartment and navigational equipment, and top is provided with radar mast, magnetic compass and communication antenna.
9. the as claimed in claim 8 Floating Liquefied Natural Gas adapting to severe sea condition produces storage handler, and it is characterized in that, described hull stem is also provided with collision compartment, and after described inner cupola Single-point system is arranged at described collision bulkhead.
10. the Floating Liquefied Natural Gas adapting to severe sea condition as claimed in claim 7 produces storage handler, it is characterized in that, the molded breadth of described hull is 1.60 ~ 1.75 with the scope of the ratio of moldeed depth, and under normal operation sea conditions, the roll angle single width significant valve of hull is not more than 3.5 °.
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| CN201510378909.5A CN104890820A (en) | 2015-07-01 | 2015-07-01 | Floating liquefied natural gas production, storage and unloading device adaptive to adverse sea conditions |
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| CN201510378909.5A CN104890820A (en) | 2015-07-01 | 2015-07-01 | Floating liquefied natural gas production, storage and unloading device adaptive to adverse sea conditions |
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| CN105584619A (en) * | 2016-03-08 | 2016-05-18 | 上海船舶研究设计院 | Collision bulkhead with ventilating function for small LNG transport ship |
| CN105857513A (en) * | 2016-06-16 | 2016-08-17 | 中国船舶工业集团公司第七○八研究所 | Shuttle LNG ship for marine LNG transportation |
| CN108520108A (en) * | 2018-03-19 | 2018-09-11 | 中国海洋石油集团有限公司 | A kind of Floating Liquefied Natural Gas device liquid tank optimization method based on temperature field analysis |
| WO2019041457A1 (en) * | 2017-08-29 | 2019-03-07 | 广船国际有限公司 | Large-scale oil tanker and security protection method therefor |
| CN110662694A (en) * | 2017-05-31 | 2020-01-07 | 三井易艾斯造船有限公司 | Offshore floating body structure |
| CN113968310A (en) * | 2021-11-29 | 2022-01-25 | 沪东中华造船(集团)有限公司 | FLNG equipment with many cabins type |
| CN114212188A (en) * | 2016-12-29 | 2022-03-22 | 现代重工业株式会社 | Container transport ship propelled by gas fuel |
| CN118182769A (en) * | 2024-05-20 | 2024-06-14 | 中海油能源发展股份有限公司采油服务分公司 | Construction method for modifying FPSO (floating production storage and offloading) into FSRU (FSRU) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105584619A (en) * | 2016-03-08 | 2016-05-18 | 上海船舶研究设计院 | Collision bulkhead with ventilating function for small LNG transport ship |
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| CN110662694A (en) * | 2017-05-31 | 2020-01-07 | 三井易艾斯造船有限公司 | Offshore floating body structure |
| WO2019041457A1 (en) * | 2017-08-29 | 2019-03-07 | 广船国际有限公司 | Large-scale oil tanker and security protection method therefor |
| CN108520108B (en) * | 2018-03-19 | 2022-02-18 | 中国海洋石油集团有限公司 | Floating liquefied natural gas device liquid tank optimization method based on temperature field analysis |
| CN108520108A (en) * | 2018-03-19 | 2018-09-11 | 中国海洋石油集团有限公司 | A kind of Floating Liquefied Natural Gas device liquid tank optimization method based on temperature field analysis |
| CN113968310A (en) * | 2021-11-29 | 2022-01-25 | 沪东中华造船(集团)有限公司 | FLNG equipment with many cabins type |
| CN118182769A (en) * | 2024-05-20 | 2024-06-14 | 中海油能源发展股份有限公司采油服务分公司 | Construction method for modifying FPSO (floating production storage and offloading) into FSRU (FSRU) |
| CN118182769B (en) * | 2024-05-20 | 2024-07-23 | 中海油能源发展股份有限公司采油服务分公司 | Construction method for modifying FPSO (floating production storage and offloading) into FSRU (FSRU) |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20150909 |