CN105600197A - Isolated underwater flexible storage device for offshore oil-gas field - Google Patents
Isolated underwater flexible storage device for offshore oil-gas field Download PDFInfo
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- CN105600197A CN105600197A CN201610066014.2A CN201610066014A CN105600197A CN 105600197 A CN105600197 A CN 105600197A CN 201610066014 A CN201610066014 A CN 201610066014A CN 105600197 A CN105600197 A CN 105600197A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000013535 sea water Substances 0.000 claims abstract description 31
- 239000000178 monomer Substances 0.000 claims description 23
- 238000011049 filling Methods 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 241001466460 Alveolata Species 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
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- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
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- 239000003921 oil Substances 0.000 abstract description 53
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- 239000010779 crude oil Substances 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 9
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- 150000002430 hydrocarbons Chemical class 0.000 abstract description 7
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- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/78—Large containers for use in or under water
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an isolated underwater flexible storage device for an offshore oil-gas field. The device comprises a sealed storage tank and a plurality of storage units, wherein the plurality of storage units are vertically arranged and fixedly connected in the sealed storage tank; the sealed storage tank is provided with a water pipe which is communicated with the outside; each storage unit is provided with a flexible soft bag and an open-type jacket; each flexible soft bag is provided with a medium loading-unloading pipeline; each medium loading-unloading pipeline is fixed on the corresponding open-type jacket. The device disclosed by the invention has the advantages that the main advantages of a dry oil storage method are reserved, crude oil or other liquid hydrocarbon compounds are not in direct contact with seawater, the effect of heat preservation can be achieved, and water soluble liquid, such as methanol, can be stored; meanwhile, two disadvantages of the dry oil storage method are overcome; the effects of safety, environmental friendliness and suitability for different water depths are achieved; the flexible soft bag is used for storing a medium, so that the separation between the medium and water is realized, and the effects of high volume utilization ratio and low cost are achieved.
Description
Technical field
The invention belongs to offshore and gas development field, particularly relate to a kind of isolated flexibility under water for offshore oil and gas fieldStorage device.
Background technology
After offshore oilfield output crude oil, there are two kinds of methods to carry out subsequent treatment: 1) to export with submarine pipeline; 2) be stored inIn Fuel Tanking Unit, regularly transport with shuttle tanker, this Fuel Tanking Unit can be a fixing part of production platform, alsoIt can be an independent structure. If the output of an offshore oilfield is large not, just lay expensive pipeline under the oceanLose more than gain, will exploit in this case and just can only use certain low cost but safe and reliable Fuel Tanking Unit.
Where essential Fuel Tanking Unit is specifically placed in. Optional position only has three: 1) Water Plane is above and be fixed onIn platform topsides chunk; 2) on the water surface as the part of floating structure; 3) Water Plane is following as platform understructureA part, or as an independent facility. The Fuel Tanking Unit being positioned at below Water Plane need to be raw by piping and platformProduct chunk is connected and fetches the handling operation of carrying out crude oil. Excellent, the shortcoming of three each tools in position in actual applications. 1) at waterlineWhen face is above: Fuel Tanking Unit, usually used as a standing part of upper strata chunk, is directly placed in technical module and accommodation moduleUnder. Advantage is the impact that is not subject to the ocean current power of wave and morning and evening tides generation. But huge Fuel Tanking Unit is placed in techniqueUnder module and accommodation module, can form serious potential safety hazard. In addition, this layout increases to table top worseAdd huge weight, make it in crude oil cargo handling process to produce very large changes in weight, thereby greatly affected platformMotion features of response. Therefore, this scheme is only applied on the fixed platform that is positioned at Very Shallow Water territory at present on a small quantity. 2) existThe water surface: advantage is to increase easily the oil storage volume of platform class like ship shape FPSO floating structure. But shortcoming is,Floating structure is subject to the impact of the environmental forces of stormy waves generation, thereby need to rely on an expensive mooring system or navigation systemKeep marine positioning, therefore can be more much higher than conventional fixed platform cost. For this reason, floating structure is only at deep waterRecover the oil or the shallow water tangible cost of required oil pipeline that recovers the oil just can be used when too high. 3) below Water Plane: no matter forFixed platform or floating platform, this is all optimum position, because as long as the underwater degree of depth of oil storage tank is enough dark, byThe environmental forces that wind produces has just disappeared completely, and the environmental forces being produced by wave also can weaken greatly. In addition the center of gravity of platform,Also can decline, be conducive on the whole dynamic characteristics and the motion response of platform. But underwater oil storing device can face manyChallenge. Stern challenge is that the huge buoyancy and the corresponding platform weight that while how processing loading and unloading oils, produce change.
Storage device has two kinds of methods to store to process conventionally under water crude oil or other liquid hydrocarbons. The firstBe " wet type oil storage method ", be about to oil and be stored in together with seawater in same oil storage tank. Due to density difference, crude oil or liquidState hydrocarbon can float over the top of oil storage tank, although and profit directly contact both understand nature and be divided into upper and lower twoLayer. The crude oil of processing in the time of loading operation is injected in oil storage tank, and the seawater of simultaneous equal can be discharged out oil storage tank,Thereby the volume of oil storage pot liquid is remained unchanged. The process of emptying is just in time contrary, and seawater is injected in tank and equivalentCrude oil is extruded outside tank. When the great advantage of this oil storage method is loading and unloading oils, at the bottom of the seat of storage tank, changes in weight is very little, and variable quantity onlyFor maximum is sat 15% left and right of end weight. Another advantage is, due to storage tank its inner pressure in whole service lifeRemain hydrostatic pressure balance with outside seawater, therefore do not need it to be designed to pressure vessel. But,The method also has three large shortcomings. First is exactly the worry of environmental pollution. Because storage tank constantly rocks under water, crude oilCan produce a mixed layer with the contact-making surface of seawater, this mixed layer will be to environment as discharged. The secondth,Heat-insulating problem, oil keeps liquid state to need heating and thermal insulation, and outside water of coming in is cold, therefore the large-area contact of profit is veryDifficulty is taked Insulation to crude oil. The 3rd, the method cannot storage of water insoluble liquid, for example methyl alcohol. Just because of theseShortcoming, particularly problem of environmental pollution, although insider has made huge effort, wet type oil storage method be no matterThe case that obtains practical application on fixed platform or floating platform is few.
The method of the second oil storage is " dry type oil storage method ". Use this method profit can directly not contact, therefore no matter processedCrude oil or liquid hydrocarbon can be stored in underwater storage tank. In addition, crude oil can be incubated well. NoCross, the method faces two serious challenge. First, in emptying process, can produce a large amount of buoyancy. Secondly, need to use lazyProperty gas, and inert gas leak can be to environment. Inert gas is injected to sealing oil storage tank oil reservoir superjacent air spaceStop the gas of crude oil volatilization to spill storage tank and cause air pollution. But the generation of inert gas in application, injection are alsoForm the processes such as sealant, exhaust and all may leak and become pollution sources. In above-mentioned multiple serious challenge, disappearThe gravity foundation that typically uses a cement manufacture except the solution of a large amount of buoyancy problem is offset in emptying process and is producedBuoyancy. Another method that solves excessive buoyancy is on oil storage tank limit, to build in addition several ballast tanks, past when emptyingIn ballast tank, the buoyancy that entirety produces is offset in water filling. No matter which kind of method all can make whole storage device itself very heavy.Above-mentioned variety of problems, the case that makes dry type oil storage method obtain practice in offshore oil production industry is little, in only caseIn example, the overwhelming majority is applied to cement gravity foundation platform.
On October 23rd, 2012, american documentation literature US8292546B2 disclosed the concrete of a kind of dry type oil storage methodScheme, proposes a wet tank and joins a corresponding seawater ballast tank, and both are symmetrical, above two pot liquids allBe injected with inert gas intercommunication. When oil loading and unloading, this Fuel Tanking Unit constantly carries out profit by two cover oil/water pumping systemsWeight replaces the uniformity of holding device gross mass, with timer center of gravity only to move up and down along an axis. This isThe great advantage of system is that the gross weight of installing in the process of loading and unloading oils remains consistent. But this device exists threeProblem. The first, install overall actual reserves very low because more than 50% volume of system need be used for storing seawater andInert gas. Therefore, when dry type oil storage method emptying, can produce the excessive buoyancy that exceedes 50%, and wet type oil storage method only producesApproximately 15% buoyancy. In order to solve the problem of above-mentioned excessive buoyancy, conventionally use heavy cement structures, instead of useThe Steel material that offshore platform is conventional. Cement structures is directly sat at the end, easily produces undermining and empties phenomenon, gives platform safetyCause a hidden trouble. The second, due to the existence of seawater ballast tank, increase the overall weight of device. The 3rd, whole oil storage dressThe effective operation of putting need to rely on and can carry out respectively with one that takes out with row the crude oil in oil storage tank and ballast tank or seawaterComplicated sundstrand pump system, there is the potential safety hazard of operation reliably and with long-term in this system.
Summary of the invention
The present invention provides a kind of under water isolated for offshore oil and gas field for solving the technical problem existing in known technologyFlexible storage device, this equipment safety environmental protection, can be suitable for different water depth, adopts flexible soft bag storage medium, realizes and being situated betweenMatter separates with water, and capacity utilization is high, and cost is low.
The present invention provides a kind of under water isolated for offshore oil and gas field for solving the technical problem existing in known technologyFlexible storage device, comprises airtight storage tank and multiple storage monomer, described in the vertical arrangement of multiple described storage monomers is fixed inIn airtight storage tank; Described airtight storage tank is provided with the water pipe being in communication with the outside; Described storage monomer be provided with the soft bag of flexibility andAn open sheath is provided with handling medium pipeline, described in described handling medium pipeline is fixed on the soft bag of described flexibilityOn open sheath.
On the soft bag of described flexibility, be provided with note discharge duct.
Be provided with seawater at the top of described open sheath and reclaim monitoring pipeline.
Bottom at the soft bag of described flexibility is provided with an adpting flange, and the bottom of bottom adpting flange and described open sheath connectsConnect, be provided with thermal medium filling pipeline on the soft bag of described flexibility, the lower end of described thermal medium filling pipeline is inserted into described softProperty soft bag bottom.
Multiple described storage set of monomers are synthesized an alveolate texture, relative airtight reservoir walls and described open protectingBetween cover, be provided with junction steel plate.
Above the soft bag of described flexibility, be provided with the identical pressure-bearing ring flat-plate of outer surface of cupular part being full of with it after medium, described in holdPressure ring plate and described open sheath are affixed.
Described water pipe is fixed on the lateral wall of described airtight storage tank, and the delivery port of described water pipe is connected to described airtight storage tankTop, the water inlet of described water pipe is arranged on the below of described airtight storage tank, on described water pipe, is provided with check valve.
When the soft bag of described flexibility is full of after medium, the lateral surface of the soft bag of described flexibility and the medial surface of described open sheath are tightPaste, on the inner surface of described open sheath, have the coating of waterproof biological attachment.
The soft bag of described flexibility is provided with protective layer, heat-insulation layer and sealant from outside to inside successively.
Top at the soft bag of described flexibility is provided with an adpting flange, and the top of top adpting flange and described open sheath connectsConnect, on the adpting flange of top, be provided with sleeve pipe, described sleeve pipe is through described open sheath, and with described open sheathAffixed, in described sleeve pipe, include the pipeline of corresponding described storage monomer, be positioned at open sheath tip described in eachMultiple sleeve pipes are interconnected to form piping, and described piping links together multiple described storage monomers, and described piping is provided withTwo convergence tubes.
Advantage and good effect that the present invention has are:
One) in use, owing to being stored medium all the time in airtight storage tank and seawater is full of, handling crude oil or otherWhen liquid hydrocarbon, at the bottom of the seat of airtight storage tank, changes in weight is very little, good stability.
Two) because storage device its inner pressure and outside seawater in whole service life remain hydrostaticPressure balance, therefore the present invention goes for any depth of water, and does not need working pressure container as airtight storage tank,Therefore the construction cost of this storage device is low.
Three) the present invention has retained the major advantage of dry type oil storage method, adopts flexible soft bag storage medium, realizes medium and waterSeparation, crude oil or other liquid hydrocarbons directly do not contact with seawater, can be incubated, can storage of water dissolubilityLiquid is methyl alcohol such as. Meanwhile, the present invention has overcome two large shortcomings of dry type oil storage method, while using inert gas and emptyingProduce excessive buoyancy.
Four) this storage device has been equipped with note discharge duct, and this storage device can entirety be floated certainly, have from resettlement, fromInstallation function; Do not need marine crane barge and transport barge, can reduce installation cost.
Five) storage device is positioned at the water surface and does not bear below wind-force, bears compared with rips power and (dives beneath the water with oil storage tank topThe degree of depth relevant), and only bear limited stream power; Can eliminate most of potential safety hazard from extraneous load.
Six) this storage device is equipped with thermal medium filling pipeline, can realize the dynamic storing of storage medium, ensures to storeMedium is in the mobility of memory period.
Seven) be convenient to adopt extra large oily engineering conventional steel structure and traditional chunk supporting way to reduce the uncertain of expenditure of constructionFactor.
Eight) this storage device is equipped with seawater to reclaim monitoring pipeline, can realize leak case to stocking system under waterReal-Time Monitoring; Flexible soft bag is not subject to external load action and has the multiple knot that prevents that storage medium from leaking in airtight storage tankStructure and seawater discharge detection architecture meet environmental requirement.
Nine) exist and compare with traditional dry type oil storage method with traditional wet type oil storage method, the present invention has avoided oil mixing with water layerGeneration, do not use inert gas yet, avoided inert gas and oil gas to enter atmosphere and showing of polluting and wasteResemble, meet the requirement of safety and environmental protection.
Ten) the soft bag of the flexibility in open sheath and the sheath in airtight storage tank is designed to multiple storage set of monomers syntheticAn alveolate texture, convenient factory to storage monomer realize standardized production.
In sum, utilization of the present invention is placed in the soft bag of the flexibility of open sheath and carrys out storage medium, with this realize medium withWater does not contact, and open sheath communicates with seawater, fills after medium and expand and extrude the sea in open sheath in flexible soft bagWater, flexible soft bag draws off medium after-contraction, and the space reserving is full of automatically by seawater, therefore, flexible storage device under waterGross weight substantially remain unchanged, reliable and stable, safety and environmental protection, capacity utilization is high, cost is low.
Brief description of the drawings
Fig. 1 is one of top view of the present invention;
Fig. 2 is two of top view of the present invention;
Fig. 3 is that in Fig. 1, multiple storage monomers are vertically arranged in the stereogram in airtight storage tank;
Fig. 4 is that a storage monomer of the present invention fills the structural representation under oil condition at the soft bag of flexibility;
Fig. 5 is that a storage monomer of the present invention is at the structural representation not filling under oil condition;
Fig. 6 is the soft bag of flexibility of the present invention schematic diagram;
Fig. 7 is the A-A ＇ cut-away view of Fig. 6;
Fig. 8 is the schematic diagram that the present invention applies.
In figure: 110, flexible soft bag, 111-1, bottom adpting flange, 111-2, top adpting flange, 113, protectionLayer, 114, heat-insulation layer, 115, sealant, 116, storage medium, 117, seawater, 118, pressure-bearing ring flat-plate, 119,Muff, 120, open sheath, 130, sleeve pipe, 131, thermal medium filling pipeline, 132, handling medium pipeline,133, note discharge duct, 134, seawater reclaims monitoring pipeline, 140, piping, 150, water pipe, 200, airtight storage tank,201, pipeline, 202, steel plate, 204, water proof sleeve, 300, wellhead platform, 400, produce chunk.
Detailed description of the invention
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawingBe described in detail as follows:
Refer to Fig. 1～Fig. 3, a kind of isolated flexible storage device under water for offshore oil and gas field, comprises airtight storage tank200 and multiple storage monomer, multiple described storage monomers are vertically arranged and are fixed in described airtight storage tank 200; Described airtightStorage tank 200 is provided with the water pipe 150 being in communication with the outside. Refer to Fig. 4～Fig. 5, it is soft that described storage monomer is provided with a flexibilityBag 110 and an open sheath 120 are provided with handling medium pipeline 132, described handling on the soft bag 110 of described flexibilityMedium pipeline 132 is fixed on described open sheath 120. When loading, unloading storage medium, due to all open protectingHydraulic pressure in cover 120 is equally distributed, therefore storage medium 116 (can be crude oil or other liquid hydrocarbons)Can freely flow to simultaneously or flow out the soft bag 110 of all flexibilities.
Refer to Fig. 4～Fig. 5, in the present embodiment, on the soft bag 110 of described flexibility, be provided with note discharge duct 133. LogicalCross note discharge duct 133 to flexibility soft bag 110 gas injections and exhaust, can be underwater floating by realizing whole storage deviceThereby realize from installing and dismounting certainly thereby power changes the drinking water of whole storage device, do not need to rely on marine crane barge and transportBarge is installed, and saves installation cost.
In the present embodiment, be provided with seawater at the top of described open sheath 120 and reclaim monitoring pipeline 134. Seawater reclaimsMonitoring pipeline 134, for pumping the seawater of extruding open sheath 120 due to injection storage medium, enters on oil gas fieldPortion's exhaust system is processed rear discharge up to standard, and whether the seawater that monitoring is extruded simultaneously contains storage medium 116, soft for realizingProperty soft bag 110 leakage situation Real-Time Monitoring.
In the present embodiment, be provided with an adpting flange, bottom adpting flange 111-1 in the bottom of the soft bag 110 of described flexibilityBe connected with the bottom of described open sheath 120, on the soft bag 110 of described flexibility, be provided with thermal medium filling pipeline 131, instituteThe lower end of stating thermal medium filling pipeline 131 is inserted into the bottom of the soft bag 110 of described flexibility. Thermal medium filling pipeline 131 useIn the storage medium after heat treated being injected to flexible soft bag 110 bottoms, load and unload medium pipeline 132 simultaneously and pump by the external worldThe storage medium of environment cools, the heating system that enters oil gas field top, makes the medium storing always in dynamic circulationIn, to guarantee the mobility of storage medium, be suitable for cold environment.
In the present embodiment, above the soft bag 110 of described flexibility, being provided with the outer surface of cupular part being full of with it after medium coincidePressure-bearing ring flat-plate 118, described pressure-bearing ring flat-plate 118 is affixed with described open sheath 120. The use of described pressure-bearing ring flat-plate 118Be in: when the soft bag of described flexibility 110 full loads, support from top to bottom due to storage at described open sheath 120 topsOne that deposit that medium 116 and the density contrast of seawater 117 form upwards pressure. When the soft bag 110 of described flexibility is full of JieAfter matter, the lateral surface of the soft bag 110 of described flexibility and the medial surface of described open sheath 120 are close to, thereby form oneThe environment of anaerobic. This environment is unfavorable for marine attaching organism, particularly the existence of hard-shelled marine growth. Open describedPut the coating that has waterproof biological attachment on the inner surface of formula sheath 120. Prevent that long hard-shelled biological attachment is on inwall.Adhere to the long-term friction of marine growth and may cause damage to the soft bag of flexibility 110 with this.
In the present embodiment, be provided with an adpting flange, top adpting flange 111-2 at the top of the soft bag 110 of described flexibilityBe connected with the top of described open sheath 120, be provided with sleeve pipe 130 on the adpting flange of top, described sleeve pipe 130 passesDescribed open sheath 120, and affixed with described open sheath 120, in described sleeve pipe 130, include corresponding described inThe pipeline of storage monomer, in the present embodiment, thermal medium filling pipeline 131, handling medium pipeline 132, note discharge duct133 and seawater reclaim monitoring pipeline 134 be all included in sleeve pipe 130. In described sleeve pipe 130, be also provided with Pipeline thermal insulating sleeve119. Be positioned at multiple sleeve pipes 130 at open sheath 120 tops described in each and be interconnected to form piping 140, described pipeBe 140 multiple described storage monomers to be linked together, described piping 140 is provided with two convergence tubes. Refer to Fig. 1 andIn Fig. 2, in figure, show the spatial relationship of each pipeline in piping, used two tubulose supporting legs 201 to form two convergence tubesPassage instead of one 's reason is: when one of them convergence tube passage goes wrong, another one convergence tube passage alsoCan normally work, can improve like this security.
In addition, from foregoing, in the present embodiment, the top of flexible soft bag 110 is respectively connected by one with bottomFlange docks and fixes with open sheath 120.
Refer to Fig. 6～Fig. 7, the soft bag 110 of described flexibility is provided with protective layer 113, heat-insulation layer 114 and from outside to inside successivelySealant 115.
Refer to Fig. 1～Fig. 2, multiple described storage set of monomers are synthesized an alveolate texture, in relative airtight storage tankBetween wall and described open sheath, be provided with junction steel plate 202. This structure not only can be flexible soft bag 110 protection is provided,Structural reinforcement is provided also can to airtight storage tank 200. Described water pipe 150 be fixed in described airtight storage tank 200 outsideOn sidewall, the delivery port of described water pipe 150 is connected to the top of described airtight storage tank 200, described water pipe 150 enter waterMouth is arranged on the below of described airtight storage tank 200, on described water pipe 150, is provided with check valve. The reason of design is like this,Check valve can ensure that the water in airtight storage tank 200 can only reclaim monitoring pipeline 134 through seawater and pump, can be through described waterPipe 150 flows into the sea, and Leakage prevention pollutes. Have the darker oxygen of the water of being exactly fewer, the seed that adheres to marine growth is also fewer again.In addition, one or multi-channel filtration mesh screen can be installed in the import of water pipe 150 stops in seawater 117 foreign material and adheres to seaBiological seed enters airtight storage tank 200.
In addition, for maintenance and the replacing of the soft bag 110 of the described flexibility of facility, have passable at the top of open sheath 120The lid of opening, the sidewall of open sheath 120 needs not be monoblock steel plate, ensure structure have sufficient intensity beforePut and can form lattice structure by steel pipe or steel plate or even other high-strength material, can reduce like this 120 weightAnd cost. No matter what kind of concrete structure open sheath 120 adopts, once the water pipe 150 of seawater from being in communication with the outsideEnter after airtight storage tank 200, can flow in all open sheaths 120, and finally make all open sheaths120 are submerged in water.
Refer to Fig. 5, Fig. 5 shows a soft bag 110 of flexibility and is not filling storage medium 116, is placed on hexagonalAmong open sheath 120. Certainly, open sheath 120 can be also other shapes that are conducive to increase volume filling rateShape. The space that storage medium 116 stays is filled up by the seawater pouring in, and therefore open sheath 120 bottoms exist a large amount of seasWater 117. Now the bottom of flexible soft bag 110 can be squeezed flat and make remaining storage medium 116 by seawater 117 upwards by hydraulic pressureExtruding.
Refer to Fig. 1 and Fig. 8, Fig. 1 and Fig. 8 show the schematic diagram of the present invention for well drilling of shallow sea platform, by the present inventionBe fixed in and produce the below of chunk 400, sit on the base for supporting being placed on wellhead platform 300 one, safe and reliable.
Refer to Fig. 2, Fig. 2 shows the schematic diagram of the present invention for another well drilling of shallow sea platform, at airtight storage tank200 central authorities are reserved with the space of multiple water proof sleeves 204, and different from Fig. 8 is that wellhead platform is integrated in production platformAmong.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above, the present invention is not limited to above-mentionedDetailed description of the invention, above-mentioned detailed description of the invention is only schematically, is not restrictive, this area generalLogical technical staff, under enlightenment of the present invention, is not departing from the scope situation that aim of the present invention and claim protect,Can also make a lot of forms, within these all belong to protection scope of the present invention.
Claims (10)
1. for an isolated flexible storage device under water for offshore oil and gas field, it is characterized in that, comprise airtight storage tank(200) and multiple storage monomer, multiple described storage monomers are vertically arranged and are fixed in described airtight storage tank (200);
Described airtight storage tank (200) is provided with the water pipe (150) being in communication with the outside;
Described storage monomer is provided with the soft bag of flexibility (110) and an open sheath (120), soft in described flexibilityBag (110) is provided with handling medium pipelines (132), and described handling medium pipeline (132) is fixed on described open protectingOn cover (120).
2. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, is characterized in that,On the soft bag of described flexibility (110), be provided with note discharge duct (133).
3. the isolated flexible storage device under water for offshore oil and gas field according to claim 1 and 2, its featureBe, be provided with seawater at the top of described open sheath (120) and reclaim monitoring pipeline (134).
4. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, is characterized in that,Bottom at the soft bag of described flexibility (110) is provided with an adpting flange, and bottom adpting flange (111-1) is with described openThe bottom of sheath (120) connects, and is provided with thermal medium filling pipeline (131) on the soft bag of described flexibility (110), described inThe lower end of thermal medium filling pipeline (131) is inserted into the bottom of the soft bag of described flexibility (110).
5. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, is characterized in that,Multiple described storage set of monomers are synthesized an alveolate texture, relative airtight reservoir walls and described open sheath itBetween be provided with junction steel plate (202).
6. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, is characterized in that,Top at the soft bag of described flexibility (110) is provided with the identical pressure-bearing ring flat-plate (118) of outer surface of cupular part being full of with it after medium,Described pressure-bearing ring flat-plate (118) is affixed with described open sheath (120).
7. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, is characterized in that,Described water pipe (150) is fixed on the lateral wall of described airtight storage tank (200), and the delivery port of described water pipe (150) connectsBe connected on the top of described airtight storage tank (200), the water inlet of described water pipe (150) is arranged on described airtight storage tank (200)Below, on described water pipe (150), be provided with check valve.
8. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, is characterized in that,When the soft bag of described flexibility (110) is full of after medium, lateral surface and the described open sheath of the soft bag of described flexibility (110)(120) medial surface is close to, and has the coating of waterproof biological attachment on the inner surface of described open sheath (120).
9. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, is characterized in that,The soft bag of described flexibility (110) is provided with protective layer (113), heat-insulation layer (114) and sealant (115) from outside to inside successively.
10. the isolated flexible storage device under water for offshore oil and gas field according to claim 1, its feature existsIn, be provided with an adpting flange at the top of the soft bag of described flexibility (110), top adpting flange (111-2) with described in openThe top of putting formula sheath (120) connects, and is provided with sleeve pipe (130) on the adpting flange of top, and described sleeve pipe (130) is wornCross described open sheath (120), and affixed with described open sheath (120), bag in described sleeve pipe (130)The pipeline that contains corresponding described storage monomer, is positioned at multiple sleeve pipes (130) at open sheath (120) top described in eachBe interconnected to form piping (140), described piping (140) links together multiple described storage monomers, described pipeSystem (140) is provided with two convergence tubes.
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| CN201610066014.2A CN105600197B (en) | 2016-02-01 | 2016-02-01 | For the isolated underwater flexible storage device of offshore oil and gas field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610066014.2A CN105600197B (en) | 2016-02-01 | 2016-02-01 | For the isolated underwater flexible storage device of offshore oil and gas field |
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| CN110893954A (en) * | 2019-12-17 | 2020-03-20 | 中国人民解放军陆军工程大学 | A device for storing and supplying oil and water in the box body of an elevated platform on a remote sea island and reef |
| CN114084535A (en) * | 2021-12-16 | 2022-02-25 | 中海石油(中国)有限公司 | Underwater flexible storage device and use method |
| CN116969409A (en) * | 2022-04-24 | 2023-10-31 | 中国石油管道局工程有限公司 | Marine oil product transfer system |
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| CN105600197B (en) | 2018-06-29 |
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