CN201712989U - Oil storage device suitable for deep sea high-pressure environment - Google Patents
Oil storage device suitable for deep sea high-pressure environment Download PDFInfo
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- CN201712989U CN201712989U CN2009203111867U CN200920311186U CN201712989U CN 201712989 U CN201712989 U CN 201712989U CN 2009203111867 U CN2009203111867 U CN 2009203111867U CN 200920311186 U CN200920311186 U CN 200920311186U CN 201712989 U CN201712989 U CN 201712989U
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- fuel tanking
- tanking unit
- bulkhead
- separating plate
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Abstract
The utility model belongs to the technical field of ocean engineering, and relates to an oil storage device suitable for a deep sea high-pressure environment. The oil storage device adopts a cubic bottomless double-layered steel plate steel structure, and comprises a deck, broadsides, a bow and a stern, wherein a sealed watertight bulkhead and a manhole bulkhead are arranged between an inner layer plate and an outer layer plate; a steel hoop skeleton material is welded on the inner layer plate, the outer layer plate and the sealed watertight bulkhead; the inner layer plate adopts the structure of a watertight welded steel plate; four cabins are arranged in the device in such a manner that a structure taking the shape of a square equally divided into four smaller squares is formed; the cross section of each cabin is square; and the cabins are communicated with each other and separated by pillars; and an oil separation system of the device comprises oil films, oil separation plates and oil separation interlayers. As the interior of the oil storage device can be communicated with the exterior, the device body is not required to bear huge submarine pressure,prevents produced oil from polluting seawater and submarine soil, and achieves safety and practicability.
Description
Technical field
The utility model belongs to field of ocean engineering, is specifically related to the large-scale Fuel Tanking Unit in seabed, a kind of deep-sea, is applicable to the storage of crude oil in the exploitation of deep-sea.
Background technology
Oil and natural gas occupies considerable status in energy mix.When land hydrocarbon resources through after long-term, the large scale mining, worldwide oil-gas exploration has been moved towards wide ocean with exploitation, and formed gradually investment high, have a big risk, energy industry frontier that new and high technology is intensive.Along with marine petroleum development is developed to off-lying sea, marine site, deep-sea by the coastal waters, the storage of crude oil also develops into marine oil storage by land oil storage.Marine oil storage can be divided into oil storage waterborne, water surface oil storage and three kinds of main modes of oil storage under water again.
Oil storage waterborne refers to petrol storage tank is arranged on the platform, as Chinese Bohai Sea chengbei oilfield.This oil storage mode capacity is limited, and construction investment is big, and is uneconomical, the small oil field that be only applicable to the shallow water territory, yields poorly.
Water surface oil storage refers to adopt oil tanker or oil barge oil storage, is widely used on the floating production system.This oil storage mode capacity is big, maneuverability, but is subject to the influence that sea situation changes.
Oil storage under water refers to oil tank is seated on the sea bed, or dives beneath the water.The characteristics of this oil storage mode are that safety, expense are low, capacity is big, can adapt to the needs of offshore oil development to off-lying sea, deep-sea development and structure subsea production system.
Oil storage is under water isolated with burning things which may cause a fire disaster, thunder and lightning because oil storage equipment is positioned at below the water surface, and not only oil and gas loss is little but also be difficult for catching fire, and has natural explosion-proof performance, and oil well also can be produced continuously when sea situation is abominable; Because Wave energy mainly concentrates near the water surface, oil tank places the main effect of having avoided wave under water, is subjected to wave force little.In addition, compare with oil storage waterborne, submerged tank can be saved expensive platform construction expense, and jar appearance is unrestricted, has huge oil storage capacity.For example, the GullfahsC concrete platform of installing at depth of water 220m place, the North Sea, a jar appearance reaches 140 ten thousand steres.This platform utilizes the tank body of storage tank to make platform base, supports Texas deck and develops into brill, adopts, stores up multifunctional gravity formula platform.This structural shape is built economical, and is safe in utilization, is convenient to bookkeeping, and expense is low.
Oil-water displacement process is generally adopted in oil storage under water.Utilize the principle of profit severe difference, adopt the technological process of oil-feed draining, water inlet oil extraction can make storage tank remain full of the situation of liquid like this, huge buoyancy when overcoming the tank body emptying, reduce the pressure reduction of tank body inside and outside wall, thereby reduce the ballast amount of works and the consumption of building materials, reach good work status.Adopt oil-water displacement process,, also can save the required safety anti-explosive system and device of conventional oil storage mode because tank body remains full of the liquid situation.
The utility model content
The purpose of this utility model is to propose a kind of Fuel Tanking Unit that is applicable to the deep-sea hyperbaric environment, with the crude oil that overcomes existing deep-sea Fuel Tanking Unit undercapacity and produce to problems such as salt water contaminations.
For this reason, the utility model adopts following technical scheme:
A kind of Fuel Tanking Unit that is applicable to the deep-sea hyperbaric environment, steel structure for cube shaped, this installs the no end, comprise deck, topside and bow stern, topside and bow stern structure and measure-alike, deck, topside and bow stern are the double-layer plate member of transverse framing system, are provided with sealing watertight bulkhead and manhole bulkhead between inner plating and lamina rara externa, be welded with the steel aggregate on inner plating, lamina rara externa and sealing watertight bulkhead, inner plating is a watertight welding steel structure; In establish four cabins, four cabins are matrix pattern to be arranged, each cabin cross-sectional plane be square, is interconnected between the cabin, separates with pillar; Its oil removal system comprises oil film, oil separating plate and oil removal interlayer, the oil removal interlayer is a metal sheet that is matrix pattern, outer peripheral four limits of interlayer respectively with the inner plating of device topside and bow stern on watertight be weldingly connected, each is connected the edge of its inner four empty frames with an oil film, be embedded with described pillar on four middle frames, respectively place the oil separating plate of a density of material between seawater and crude oil below the oil removal interlayer in each cabin, the size of this oil separating plate is less than the empty frame of described oil removal interlayer, oil separating plate can freely be fluctuated in the cabin, oil film is used to separate upper strata crude oil and bottom seawater for connecting the film structural component of oil separating plate and oil removal interlayer.
As preferred implementation, constitute to be provided with between deck, topside and the bow stern doubling plate laterally to reach and seal watertight bulkhead, manhole bulkhead longitudinally.Fuel Tanking Unit according to claim 1 is characterized in that, the oil inlet port and the oil outlet of described Fuel Tanking Unit are positioned at the promenade deck, and distribution is centrosymmetric; Described Fuel Tanking Unit is of a size of length=38.4m * 38.4m * 18.4m, and the length of side in four cabins is 18m, and the length of side of oil separating plate is 16m, and the oil removal interlayer is positioned at the inner 9.2m elevation of Fuel Tanking Unit place; The thickness of each lamina rara externa and inner plating is all got 12mm, and described steel aggregate is a L shaped steel, module of anti-bending section W=288cm
3, moment of inertia I=1324.8cm
4, it is of a size of 160mm * 100mm * 14mm.
The Fuel Tanking Unit that is applicable to the deep-sea hyperbaric environment that the utility model is designed, by the whole heavy two aspect innovative designs that are provided with the oil removal system in oil storage, the device of passing through are installed certainly, the crude oil that has overcome deep-sea Fuel Tanking Unit undercapacity and produced is to problems such as salt water contaminations, Fuel Tanking Unit is applied to darker sea situation, solved the technical barrier of the actual mesopelagic of engineering structure pressure-bearing, a kind of new oil storage production model under water is provided, has helped the exploratory development of deep-sea oil gas.Oil storage production model under water is that the crude oil that subsea wellheads is produced directly is stored under water in the Fuel Tanking Unit, and small-sized floating mooring gear is established in the producing tract, and the crude oil exporting flexible pipe is received on this mooring gear, and shuttle tanker also rests against this to realize the crude oil transhipment.This isolated oil and water displacement oil storage technology is not under water limited by the depth of water substantially, and cost can not increase sharply rising with the depth of water, is suitable for the deep-sea and uses, and compare with the floating oil storage, Fuel Tanking Unit is subjected to ice power, action of wave force little under water, and structural strength requires low, possesses movably advantage simultaneously.Cost can significantly reduce, and avoids wind sheltering to stop production simultaneously.The member that is adopted in the utility model is standard element, need not special manufacturing, thereby saves engineering cost greatly.The utility model provides a kind of development device and scheme of economic and reliable for the deep-sea oil exploitation.
The Fuel Tanking Unit that is applicable to the deep-sea hyperbaric environment that is provided with in the seabed, deep-sea that the utility model proposes, the preliminary target of its reserves is two ten thousand steres.Carry out oil storage near it is placed on the oil field, in the whole production system, do not need FPSO to participate in, can save the expense of oil production so greatly.
In addition, because the reusability and the pattern newly developed of Fuel Tanking Unit, a lot of shallow seas marginal oil field also has development and use value of the present utility model.
This Fuel Tanking Unit uses the oil removal system, and oil film in the oil removal system and oil separating plate can separate crude oil and seawater.This oil film and oil separating plate can fluctuate, to satisfy the variation of oil mass in the Fuel Tanking Unit.Like this, Fuel Tanking Unit inside can with outside UNICOM, make device proper not need to bear the huge pressure in seabed, and prevent the pollution of the crude oil produced seawater and ocean bottom soil, safe and practical.
Description of drawings
Fig. 1 deep-sea Fuel Tanking Unit unit design figure.
Look design sketch in the Fuel Tanking Unit of Fig. 2 deep-sea.
Look design sketch in the Fuel Tanking Unit oil removal system of Fig. 3 deep-sea.
Fig. 4 deep-sea Fuel Tanking Unit topside design drawing.
Fig. 5 deep-sea Fuel Tanking Unit center buttock design drawing (topside inside).
Fig. 6 deep-sea Fuel Tanking Unit center buttock design drawing (device middle part).
Fig. 7 deep-sea Fuel Tanking Unit D-D section design drawing.
Fig. 8 deep-sea Fuel Tanking Unit A-A section design drawing.
Fig. 9 deep-sea Fuel Tanking Unit B-B section design drawing.
Figure 10 deep-sea Fuel Tanking Unit C-C section design drawing.
Figure 11 deep-sea Fuel Tanking Unit inner structure scheme drawing.
Figure 12 deep-sea Fuel Tanking Unit construction scheme drawing.
Reference numeral: 1, go into oil-piping; 2, flowline; 3, oil separating plate; 4, crude oil; 5, seawater; 6, concrete weight coating piece; 7, oil film; 8, oil removal interlayer; 9, pillar; 10, water outlet; 11, oil inlet port; 12, oil outlet; 13, sealing watertight bulkhead; 14, manhole bulkhead; 15, device accessory holder.
The specific embodiment
The utility model design-calculated is applicable to the Fuel Tanking Unit of deep-sea hyperbaric environment, adopts following technical scheme:
1, target working environment: 100 meters depth of water environments such as subsea.
2, Fuel Tanking Unit pattern and type: double-deck (being divided into inner plating and lamina rara externa), the no end, cubic form steel structure.
Fuel Tanking Unit size: length=38.4m * 38.4m * 18.4m adopts transverse framed structure, welds shaped steel on the inner plating of device, lamina rara externa and the sealing watertight bulkhead, and inner plating and lamina rara externa spacing are 1.2m.Establish four cabins in the device, four cabins are matrix pattern arranges that each cabin cross-sectional plane is a square; the length of side is 18m, is interconnected between the cabin, separates with pillar; can allow the crude oil free-flowing, the design of pillar can be played the tempered oil film effect, and the layout of cabin and pillar is seen Fig. 2.The Fuel Tanking Unit inner plating is a watertight welding steel structure.
3, oil removal system is provided with explanation: the oil removal system mainly is made up of three kinds of members: oil film, oil separating plate and oil removal interlayer.Oil separating plate is positioned at the center in each cabin, is square panel, and density of material is between seawater and crude oil, and the length of side is 16m, sees Fig. 2,3 members 3.The oil removal interlayer is positioned at the inner 9.2m elevation of Fuel Tanking Unit place, effect is to separate upper strata crude oil and lower floor's seawater, the oil removal interlayer is the layer of metal member, it is a matrix pattern metal sheet, four limits of interlayer outward flange are welded to connect with device inner plating watertight, see Figure 10 member 8, inner four the empty edge edge of oil removal interlayer are connected with oil film.Be embedded with the pillar of vertical direction on middle four frames of oil removal interlayer, see Figure 10 member 9.Oil film is for connecting the film structural component of oil separating plate and oil removal interlayer, separate upper strata crude oil and bottom seawater, can fluctuate, in the inner oil storage process of device, oil film can connect oil separating plate and float downwards, otherwise, when the outside oil transportation of device, when inner, oil film can connect oil separating plate and upwards float seawater, sees Fig. 3 member 7 by the water outlet access to plant.The use of oil separating plate can reduce the usable floor area of oil film, and then has reduced laid down cost, simultaneously, can well control the motion of oil film, guarantee that oil separating plate and oil film freely fluctuate, prevent the pollution of the crude oil produced seawater and ocean bottom soil.
4, bulkhead and be welded on girder, aggregate layout and size on the steel plate in the Fuel Tanking Unit:
Be provided with laterally and seal longitudinally watertight bulkhead, manhole bulkhead and steel aggregate between the doubling plate of device tween deck.Spacing between the sealing watertight bulkhead is 8m, and the spacing between the manhole bulkhead is 2m, and steel aggregate spacing is 0.5m, and the steel aggregate all is welded on the inside and outside laminate of sealing watertight bulkhead and device.The thickness of the lamina rara externa on deck is taken as 12mm.The steel aggregate is got L shaped steel, calculates according to the requirement in the standard: module of anti-bending section W=288cm
3, moment of inertia I=1324.8cm
4, it is of a size of 160mm * 100mm * 14mm.
The set-up mode of device topside steel plate upper member and deck upper member is basic identical.Be provided with between the double-layer plate laterally to reach and seal watertight bulkhead, manhole bulkhead and steel aggregate longitudinally.Sealing watertight bulkhead spacing longitudinally is 8m, and the spacing of short transverse is 6m, and the spacing between the manhole bulkhead is 2m, and steel aggregate spacing is 0.5m, and the steel aggregate all is welded on the inside and outside laminate of sealing watertight bulkhead and device.Topside lamina rara externa thickness is taken as 12mm.The steel aggregate is got L shaped steel, calculates according to the requirement in the standard: module of anti-bending section W=288cm
3, moment of inertia I=1324.8cm
4, it is of a size of 160mm * 100mm * 14mm.
Bow stern component form and size are set at side of a ship side member in full accord in the device.Whole apparatus structure inner layer steel plate thickness is got 12mm.The oil inlet port and the oil outlet of Fuel Tanking Unit are positioned at the promenade deck, the distribution that is centrosymmetric, and particular location is seen member 11 and member 12 among Fig. 8, Fig. 9.
Fuel Tanking Unit using method of the present utility model comprises the following steps:
The first step: by barge with the towage of oil storage equipment to assigned address, finishing device relies on heavy the passing through of vertical subsidence of self gravitation when guaranteeing the Fuel Tanking Unit top, horizontal; According to process shown in Figure 12, after Fuel Tanking Unit is dragged to assigned address by barge, rely on self gravitation to sink to the seabed.
Second step: after Fuel Tanking Unit leans on the gravity of himself to insert the degree of depth certain in the underwater soil, on the accessory holder 15 around the bottom of device, add rectangular body concrete counterweight block structure 6, see Figure 12, after treating that device satisfies the anti-skidding-resistance job requirement of inclining, by going into oil-piping 1 input crude oil 4 in device, and the seawater 5 in the while eduction gear, by the isolated condition between oil removal system assurance seawater and the crude oil, after treating to fill crude oil in the device, by water surface Fuel Tanking Unit, extract crude oil the whole operation process of finishing device from the oil storage to the oil transportation out from flowline 2 as shuttle tanker.
Claims (5)
1. Fuel Tanking Unit that is applicable to the deep-sea hyperbaric environment, steel structure for cube shaped, it is characterized in that, this installs the no end, comprises deck, topside and bow stern, topside and bow stern structure and measure-alike, deck, topside and bow stern are the double-layer plate member of transverse framing system, be provided with sealing watertight bulkhead and manhole bulkhead between inner plating and lamina rara externa, be welded with the steel aggregate on inner plating, lamina rara externa and sealing watertight bulkhead, inner plating is a watertight welding steel structure; In establish four cabins, four cabins are matrix pattern to be arranged, each cabin cross-sectional plane be square, is interconnected between the cabin, separates with pillar; Its oil removal system comprises oil film, oil separating plate and oil removal interlayer, the oil removal interlayer is a metal sheet that is matrix pattern, outer peripheral four limits of interlayer respectively with the inner plating of device topside and bow stern on watertight be weldingly connected, each is connected the edge of its inner four empty frames with an oil film, be embedded with described pillar on four middle frames, respectively place the oil separating plate of a density of material between seawater and crude oil below the oil removal interlayer in each cabin, the size of this oil separating plate is less than the empty frame of described oil removal interlayer, oil separating plate can freely be fluctuated in the cabin, oil film is used to separate upper strata crude oil and bottom seawater for connecting the film structural component of oil separating plate and oil removal interlayer.
2. Fuel Tanking Unit according to claim 1 is characterized in that, constitutes to be provided with laterally and to seal longitudinally watertight bulkhead, manhole bulkhead between deck, topside and the bow stern doubling plate.
3. Fuel Tanking Unit according to claim 1 and 2 is characterized in that, the oil inlet port and the oil outlet of described Fuel Tanking Unit are positioned at the promenade deck, and distribution is centrosymmetric.
4. Fuel Tanking Unit according to claim 1 and 2, it is characterized in that described Fuel Tanking Unit is of a size of length=38.4m * 38.4m * 18.4m, the length of side in four cabins is 18m, the length of side of oil separating plate is 16m, and the oil removal interlayer is positioned at the inner 9.2m elevation of Fuel Tanking Unit place.
5. Fuel Tanking Unit according to claim 1 and 2 is characterized in that the thickness of each lamina rara externa and inner plating is all got 12mm, and described steel aggregate is a L shaped steel, module of anti-bending section W=288cm
3, moment of inertia I=1324.8cm
4, it is of a size of 160mm * 100mm * 14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203111867U CN201712989U (en) | 2009-09-23 | 2009-09-23 | Oil storage device suitable for deep sea high-pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203111867U CN201712989U (en) | 2009-09-23 | 2009-09-23 | Oil storage device suitable for deep sea high-pressure environment |
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| Publication Number | Publication Date |
|---|---|
| CN201712989U true CN201712989U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009203111867U Expired - Fee Related CN201712989U (en) | 2009-09-23 | 2009-09-23 | Oil storage device suitable for deep sea high-pressure environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158956A (en) * | 2013-03-18 | 2013-06-19 | 中国石油大学(华东) | Active type oil-water insulation underwater oil storage cabin |
-
2009
- 2009-09-23 CN CN2009203111867U patent/CN201712989U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158956A (en) * | 2013-03-18 | 2013-06-19 | 中国石油大学(华东) | Active type oil-water insulation underwater oil storage cabin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20110923 |