CN105905470A - Oil-water replacement process for crude oil storing and discharging of single-column platform - Google Patents
Oil-water replacement process for crude oil storing and discharging of single-column platform Download PDFInfo
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- CN105905470A CN105905470A CN201610365768.8A CN201610365768A CN105905470A CN 105905470 A CN105905470 A CN 105905470A CN 201610365768 A CN201610365768 A CN 201610365768A CN 105905470 A CN105905470 A CN 105905470A
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- 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
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Abstract
An oil-water replacement process for crude oil storing and discharging of a single-column platform comprises the following steps: 1, filling water into an oil storing chamber and a water sedimentation chamber; 2, performing oil and water replacement in the oil storing process; 3, performing oil and water replacement in the oil discharging process; 4, controlling the oil-water level in the oil storing chamber, namely, controlling the oil-water level in the oil storing chamber to be between the maximum chamber capacity location and the minimum chamber capacity location so as to ensure that environmental pollution accident and unqualified output crude oil can be avoided during the oil storing and outputting process of the single-column platform; 5, continuously performing oil-water replacement process during oil storing and water draining and oil discharging and water feeding in the oil storing chamber within the oilfield production period, so as to achieve the function of storing and discharging crude oil by a self floating structure of the single-column platform. With the adoption of the oil-water replacement process, the investment cost of the oilfield development engineering can be greatly decreased; in addition, the oil storing chamber is full in the whole operation all the time, so that the influence of free liquid level on the structure and the stability of the floating structure can be reduced, and the pollution to the ocean environment can be avoided.
Description
Technical field
The present invention relates to oil-water displacement process, particularly relate to the storage of a kind of open side type platform and unload the profit of crude oil and put
Change technique.Belong to Offshore Engineering field.
Background technology
At present, in the exploitation of deep water marine oil field, open side type platform (SPAR) is generally used to add Floating Production
The development mode of oil tanker (FPSO) is unloaded in storage.Wherein, open side type platform is used for drilling well and production and part
Oil vapor treatment, Floating Production storage unloads oil tanker then for receiving the logistics of open side type platform, and processes,
Process qualified crude storage in the cargo tank of oil tanker is unloaded in Floating Production storage.Above-mentioned development mode is due to needs
Two monomer structures, therefore, investment cost is of a relatively high.In order to overcome disadvantages mentioned above, use improvement
The open side type platform development pattern integrating drilling well-oil recovery-oil storage-emptying then can be the most economical；But utilize
The floating structure of open side type platform carries out storing up and unloads crude oil and need the technique of complete set, could meet marine oil
Field exploitation and the needs of environmental conservation.
Summary of the invention
Present invention is primarily targeted at the disadvantages mentioned above overcoming prior art to exist, and a kind of single-column is provided
The oil-water displacement process of crude oil is unloaded in the storage of formula platform, and it makes full use of open side type platform self structure and stores former
Oil, not only greatly reduces the construction investment cost of oil field development；And, oil storage chamber remains canful
Operation, decrease due to the existence of free surface caused on float structure intensity and the impact of stability,
It is maximally maintained the stability of open side type platform so that it is not because crude oil is unloaded in storage at severe sea condition bar
It is affected under part and destroys；Simultaneously as oil-water interfaces directly contact, during oil storage, can be sufficiently real
Existing profit is settlement separate；The interval up and down motion that oil-water interfaces set in cabin, operation controls simple；By
The sea water that cargo tank displaces carries out long secondary settlement separation in water precipitating fall cabin, it is to avoid to ocean ring
Border pollutes.
It is an object of the invention to be realized by techniques below scheme:
The oil-water displacement process of crude oil is unloaded in the storage of a kind of open side type platform, it is characterised in that: use with lower section
Method:
One, cabin is dropped in oil storage chamber and water precipitating and carry out water-filling
The oil and water displacement of two, oil storage flow process: the qualified crude oil from upper chunk sequentially enter oil-feed pump,
The crude oil space on oil storage chamber top；Meanwhile, the sea water being positioned at oil storage chamber lower space sequentially enters inner conduit
And the top in water precipitating fall cabin；And the sea water being positioned at water precipitating fall bottom, cabin enters outer water pipe, and enter marine；
Three, the oil and water displacement of emptying flow process: oil storage chamber upper space crude oil is entered upper group through output pump
The outer communication system of block, meanwhile, the sea water being positioned at water precipitating fall bottom, cabin enters oil storage chamber lower space through inner conduit；
The top then being entered water precipitating fall cabin by outer water pipe of outside sea water；
Four, oil-water interfaces in oil storage chamber are controlled: by oil-water interface control in oil storage chamber in maximum cabin
Hold between position and minimum volume of compartment position, with ensure open side type platform oil storage and outer defeated during, the most not
There will be environmental pollution accident, also do not have the underproof situation of outer output oil；
Five, within the production cycle of oil field, oil storage chamber constantly carries out the profit of oil storage draining and emptying water inlet and puts
Change process, it is achieved thereby that open side type platform utilizes the storage of self float structure to unload the function of crude oil.
Described oil storage chamber and water precipitating fall cabin carry out the detailed process of water-filling:
1., when open side type stage+module is in place, under sea water static pressure effect, sea water is entered water precipitating by outer water pipe
Fall cabin；
2., according to law of connected vessels, oil storage chamber, water precipitating are dropped cabin and are connected with sea by inner conduit, outer water pipe
Logical, under gravity, the sea water in water precipitating fall cabin is entered oil storage chamber by inner conduit；
3. the exhaust line that the air in oil storage chamber utilizes feed line to arrange is discharged；
4., after oil storage chamber is full of by sea water, sea water will be in water precipitating fall cabin inner accumulated, finally, water precipitating fall cabin
Liquid level be up to the position concordant with sea；
The replacement process of described oil storage flow process profit is as follows:
(1). open side type platform upper chunk processes qualified crude oil, increases through being positioned at the oil-feed pump of upper chunk
Entering oil inlet pipe after pressure, then, upper chunk the oil storage chamber being downwardly into open side type platform stores；
Now, oil storage chamber maritime interior waters directly contacts with crude oil in oil storage chamber, and will be formed between the contact surface of the two
Oil-water interfaces；
(2). when qualified crude oil enters oil storage chamber with certain flow, in oil storage chamber, the sea water of corresponding discharge is in pressure
Under power effect, first pass through the inner conduit replaced entrance water precipitating fall to water precipitating fall top, cabin bottom oil storage chamber
Cabin；Sea water in water precipitating fall cabin is then under sea water static pressure effect, with same flow by under water precipitating fall cabin
Portion enters sea to the outer water pipe of oil storage chamber bottom discharge mouth；Now, owing to oil-feed flow is less, oil storage
In cabin, oil-water interfaces will move downward with less speed；Along with the continuous entrance of crude oil, oil storage chamber top
Oil storage chamber in crude oil volume gradually increase, bottom oil storage chamber maritime interior waters volume reduces accordingly, formed profit
Replacement process；
(3). the sea water being discharged to water precipitating fall cabin from oil storage chamber can contain trace crude oil, but due to water precipitating fall cabin
Capacity is big and the degree of depth deep, and sea water, after oil storage chamber is displaced to water precipitating fall cabin, experienced by sufficiently long stop
Time, just final can be dropped by water precipitating and drain into sea out of my cabin, provide sufficient two to the trace crude oil in sea water
Secondary disengaging time；Owing to the most replaced sea water out will settle downwards in water precipitating fall cabin, sea
Trace crude oil in water gradually floats under the effect of the oil-water ratio method of double differences, and finally accumulates in water precipitating fall cabin
Top, it is achieved that the secondary separation of profit；
(4). through long secondary separation, by water precipitating fall cabin through the sea water of outer water pipe discharge into sea, will reach
To discharge standard；And it is positioned at the oil slick that water precipitating fall top, cabin is assembled, squeezed on platform by oil slick emptying pump
The flow process of portion's chunk processes.
In described emptying flow process, the detailed process of oil and water displacement is as follows:
1. when the crude oil in oil storage chamber nearly stores up full, when i.e. oil-water interfaces reach maximum volume of compartment position, should
Start crude oil exporting flow process in time and carry out emptying；
2., during crude oil exporting, start and be arranged in pump room the crude oil of storage in the output pump of crude oil, oil storage chamber
By pumping into upper chunk after the output pump supercharging of crude oil, then, then shuttle tanker is entered after metering,
Now, the sea water of equivalent, under hydrostatic pressure, will be entered the bottom of oil storage chamber by water precipitating fall cabin through inner conduit,
Supplement displacement by outer defeated crude oil；Meanwhile, the sea water of equivalent is under hydrostatic pressure, by by the end of outer water pipe
Hold the water precipitating fall cabin supplementing entrance top through outer water pipe；
3., during crude oil exporting, the crude oil volume in oil storage chamber gradually decreases, and seawater bulk is gradually increased, and
Form water oil replacement process；In order to avoid the emulsifying of oil-water interfaces in oil storage chamber, oil-water interfaces in oil storage chamber
The rate of climb need to control within limits；
4. when in oil storage chamber, oil-water interfaces oil reaches oil storage chamber 1 control point, top, i.e. oil-water interfaces reach
During minimum volume of compartment position, close down the output pump of crude oil, terminate crude oil exporting flow process.
Oil-water interface control depth location of about 10% to 90% in oil storage chamber in described oil storage chamber.
Beneficial effects of the present invention: due to the fact that employing technique scheme, it makes full use of open side type
Platform self structure stores crude oil, not only greatly reduces the construction investment cost of oil field development；And,
Oil storage chamber remains that canful operates, decrease due to the existence of free surface caused to float structure
Intensity and the impact of stability, be maximally maintained the stability of open side type platform so that it is does not unloads because of storage
Crude oil and be affected under the conditions of severe sea condition and destroy；Simultaneously as oil-water interfaces directly contact,
During oil storage, can sufficiently realize profit settlement separate；The interval that oil-water interfaces set in cabin is transported up and down
Dynamic, operation controls simple；The sea water displaced by cargo tank carries out long secondary settlement in water precipitating fall cabin
Separate, it is to avoid marine environment polluted.
Accompanying drawing explanation
Fig. 1 is oil storage schematic flow sheet of the present invention.
Fig. 2 is emptying schematic flow sheet of the present invention.
Major Symbol explanation in figure:
1. oil storage chamber, 2. water precipitating fall cabin, 3. oil-feed pump, 4. output pump, 5. inner conduit, 6. outer water pipe,
7. oil-water interfaces, 9. oil storage chamber maritime interior waters, 10. oil storage chamber cludy in crude oil, 8. oil storage chamber in oil storage chamber
Hold position, 11. oil storage chamber maximum volume of compartment positions.
Detailed description of the invention
As it is shown in figure 1, the present invention uses following methods:
One, cabin 2 is dropped in oil storage chamber 1 and water precipitating and carry out water-filling
1., when open side type stage+module is in place, under sea water static pressure effect, sea water is entered water by outer water pipe 6
Sedimentation cabin 2；
2., according to law of connected vessels, oil storage chamber 1, water precipitating drop cabin 2 by inner conduit 5, outer water pipe 6 with big
Marine facies connect, and under gravity, the sea water in water precipitating fall cabin 2 is entered oil storage chamber 1 by inner conduit 5；
3. the exhaust line that the air in oil storage chamber 1 utilizes feed line to arrange is discharged；
4., after oil storage chamber 1 is full of by sea water, sea water will be in water precipitating fall cabin 2 inner accumulated, finally, water precipitating
The liquid level in fall cabin 2 is up to the position concordant with sea；
Two, oil storage flow process oil and water displacement
As it is shown in figure 1, the qualified crude oil from upper chunk sequentially enters oil-feed pump 3, oil storage chamber 1 top
Crude oil space.Meanwhile, the sea water being positioned at oil storage chamber 1 lower space sequentially enters inner conduit 5 and water precipitating
The top in fall cabin 2；And the sea water being positioned at water precipitating fall bottom, cabin 2 enters outer water pipe 6, and enter marine；
The process of oil storage flow process oil and water displacement is as follows:
1. open side type platform upper chunk processes qualified crude oil, through being positioned at the oil-feed pump 3 of upper chunk
Entering oil inlet pipe after supercharging, then, upper chunk the oil storage chamber 1 being downwardly into open side type platform is carried out
Store；Due in oil storage chamber crude oil 7 and the immiscible property of oil storage chamber maritime interior waters 9 two media and both
There is density contrast, it may be assumed that in oil storage chamber, crude oil 7 density is less than oil storage chamber maritime interior waters 9 density, make at gravity
Under with, in oil storage chamber, crude oil 7 will accumulate in the headroom of oil storage chamber 1, and oil storage chamber maritime interior waters 9 will be poly-
Collect the bottom space at oil storage chamber 1.Now, oil storage chamber maritime interior waters 9 directly connects with crude oil in oil storage chamber 7
Touch, and oil-water interfaces between the contact surface of the two, will be formed；
2. when qualified crude oil enters oil storage chamber 1 with certain flow, the sea water of corresponding discharge in oil storage chamber 1
Under pressure, first pass through bottom oil storage chamber 1 replaced to the inner conduit 5 at water precipitating fall top, cabin 2
Enter water precipitating fall cabin 2；Sea water in water precipitating fall cabin 2, then under sea water static pressure effect, leads to same flow
Cross water precipitating fall bottom, cabin 2 and enter sea to the outer water pipe of oil storage chamber 1 bottom discharge mouth；Now, owing to entering
Oil flow is less, and in oil storage chamber, oil-water interfaces 8 will move downward with less speed；Along with crude oil not
Disconnected entrance, in the oil storage chamber on oil storage chamber 1 top, crude oil 7 volume gradually increases, bottom oil storage chamber maritime interior waters 9
Volume reduces accordingly, forms oil and water displacement process；
3. the sea water being discharged to water precipitating fall cabin 2 from oil storage chamber 1 can may contain trace crude oil, but due to water
The capacity in sedimentation cabin 2 is big and the degree of depth deep, and sea water, after oil storage chamber 1 is displaced to water precipitating fall cabin 2, experiences
The sufficiently long time of staying, just finally can be drained into sea, during sufficiently long stop by outside water precipitating fall cabin 2
Between, the sufficient secondary separation time will be provided to the trace crude oil in sea water；The most replaced sea out
Water settles downwards in water precipitating fall cabin 2, and the trace crude oil in sea water is under the effect of the oil-water ratio method of double differences
Gradually float, and finally accumulate in the top in water precipitating fall cabin 2, it is achieved that the secondary separation of profit；
4. through long secondary separation, water precipitating the cabin 2 sea water through outer water pipe 6 discharge into sea drops,
It is up to discharge standard, it is ensured that marine environment will not be polluted, and is positioned at water precipitating fall top, cabin 2 and gathers
The oil slick of collection, periodically can squeeze into the flow process of platform upper chunk by oil slick emptying pump and process.
Three, the oil and water displacement of emptying flow process:
As in figure 2 it is shown, oil storage chamber 1 upper space crude oil is entered the outer defeated system of upper chunk through output pump 4
System, meanwhile, the sea water being positioned at water precipitating fall bottom, cabin 2 enters oil storage chamber 1 lower space through inner conduit 5；
The top then being entered water precipitating fall cabin 2 by outer water pipe 6 of outside sea water；
In emptying flow process, the detailed process of oil and water displacement is as follows:
1: when the crude oil in oil storage chamber 1 nearly stores up full, i.e. oil-water interfaces 8 reach maximum volume of compartment position 10
Time, crude oil exporting flow process should be started in time and carry out emptying；
2: during outer defeated emptying, the output pump 4 of crude oil in first startup is arranged in pump room, storage in oil storage chamber 1
Crude oil pump into upper chunk by after output pump 4 supercharging of crude oil, then, then enter after metering and wear
Shuttle oil tanker；Now, the sea water of equivalent, under hydrostatic pressure, will be entered through inner conduit 5 by water precipitating fall cabin 2
The bottom of oil storage chamber 1, supplements displacement by outer defeated crude oil；Meanwhile, the sea water of equivalent under hydrostatic pressure,
The water precipitating fall cabin 2 on entrance top will be supplemented through outer water pipe 6 by the bottom of outer water pipe 6；
3: during crude oil exporting, the crude oil volume in oil storage chamber 1 gradually decreases, and seawater bulk is gradually increased,
And form water oil replacement process；. in oil storage chamber, oil-water interfaces 8 then will be in storage along with the carrying out of crude oil exporting
Constantly rising in cargo tank 1, owing to outer defeated flow is relatively big, the speed that in oil storage chamber, oil-water interfaces 8 rise is relatively
Greatly, in order to avoid the emulsifying of oil-water interfaces 8 in oil storage chamber, in oil storage chamber, oil-water interfaces 8 rate of climb needs
Control within limits；
4: when in oil storage chamber, oil-water interfaces 8 oil reaches oil storage chamber 1 control point, top, i.e. oil-water interfaces 8
When minimizing volume of compartment position 11, close down the output pump 4 of crude oil, terminate crude oil exporting flow process.
Four, oil-water interfaces in oil storage chamber 8 are controlled
The present invention realize it is crucial that can realize effectively being monitored and controlled to oil storage chamber oil-water interfaces 8, storage
In cargo tank, oil-water interfaces 8 are too high, when crude oil exporting, then output pump 4 can be caused to wear transporting to outside sea water
Shuttle oil tanker, causes outer output oil defective；In oil storage chamber, oil-water interfaces 8 are too low, then can cause crude oil warp
Inner conduit 5, the overflow of outer defeated pipe 6, and enter marine, cause environmental pollution to sea.Therefore, need to will store up
In cargo tank, oil-water interfaces 8 control, between maximum volume of compartment position 10 and minimum volume of compartment position 11, typically may be used
It is set as the depth location of about 10% to 90% in oil storage chamber 1, to ensure that open side type platform is in oil storage and outer
During defeated, i.e. do not have environmental pollution accident, do not have the underproof situation of outer output oil yet.
In being embodied as, the high-low limit position of oil-water interfaces 8 in cargo tank, can be according to open side type platform
The concrete form of structure and volume of compartment require suitably to adjust.
Five, oil storage chamber storage is unloaded the circulation of crude oil and is carried out
Within the production cycle of oil field, oil storage chamber 1 constantly carries out oil storage draining and the oil and water displacement of emptying water inlet
Process, it is achieved thereby that open side type platform utilizes the storage of self float structure to unload the function of crude oil.
The above, be only presently preferred embodiments of the present invention, not the present invention is made any in form
Restriction, any simple modification that above example is made by every technical spirit according to the present invention, etc.
With change and modification, all still fall within the range of technical solution of the present invention.
Claims (5)
1. an open side type platform stores up the oil-water displacement process unloading crude oil, it is characterised in that: employing following methods:
One, cabin is dropped in oil storage chamber and water precipitating and carry out water-filling
The oil and water displacement of two, oil storage flow process: the qualified crude oil from upper chunk sequentially enters the crude oil space on oil-feed pump, oil storage chamber top；Meanwhile, the sea water being positioned at oil storage chamber lower space sequentially enters inner conduit and the top in water precipitating fall cabin；And the sea water being positioned at water precipitating fall bottom, cabin enters outer water pipe, and enter marine；
Three, the oil and water displacement of emptying flow process: through output pump, oil storage chamber upper space crude oil is entered the outer communication system of upper chunk, and meanwhile, the sea water being positioned at water precipitating fall bottom, cabin enters oil storage chamber lower space through inner conduit；The top then being entered water precipitating fall cabin by outer water pipe of outside sea water；
Four, oil-water interfaces in oil storage chamber are controlled: by oil-water interface control in oil storage chamber between maximum volume of compartment position and minimum volume of compartment position, with ensure open side type platform oil storage and outer defeated during, i.e. do not have environmental pollution accident, do not have the underproof situation of outer output oil yet；
Five, within the production cycle of oil field, oil storage chamber constantly carries out oil storage draining and the oil and water displacement process of emptying water inlet, it is achieved thereby that open side type platform utilizes the storage of self float structure to unload the function of crude oil.
The oil-water displacement process of crude oil is unloaded in open side type platform the most according to claim 1 storage, it is characterised in that: described oil storage chamber and water precipitating fall cabin carry out the detailed process of water-filling:
(1). when open side type stage+module is in place, under sea water static pressure effect, sea water is entered water precipitating fall cabin by outer water pipe；
(2). according to law of connected vessels, oil storage chamber, water precipitating are dropped cabin and are connected with sea by inner conduit, outer water pipe, and under gravity, the sea water in water precipitating fall cabin is entered oil storage chamber by inner conduit；
(3). the exhaust line that the air in oil storage chamber utilizes feed line to arrange is discharged；
(4). after oil storage chamber is full of by sea water, sea water will be in water precipitating fall cabin inner accumulated, and finally, the liquid level in water precipitating fall cabin is up to the position concordant with sea.
The oil-water displacement process of crude oil is unloaded in open side type platform the most according to claim 1 storage, it is characterised in that: the replacement process of described oil storage flow process profit is as follows:
(1). open side type platform upper chunk processes qualified crude oil, enters oil inlet pipe after the oil-feed pump supercharging being positioned at upper chunk, and then, upper chunk the oil storage chamber being downwardly into open side type platform stores；Now, oil storage chamber maritime interior waters directly contacts with crude oil in oil storage chamber, and will form oil-water interfaces between the contact surface of the two；
(2). when qualified crude oil enters oil storage chamber with certain flow, in oil storage chamber, the sea water of corresponding discharge is under pressure, first passes through the inner conduit replaced entrance water precipitating fall cabin to water precipitating fall top, cabin bottom oil storage chamber；Sea water in water precipitating fall cabin, then under sea water static pressure effect, enters sea with same flow by the outer water pipe of water precipitating fall bottom, cabin to oil storage chamber bottom discharge mouth；Now, owing to oil-feed flow is less, in oil storage chamber, oil-water interfaces will move downward with less speed；Along with the continuous entrance of crude oil, in the oil storage chamber on oil storage chamber top, crude oil volume gradually increases, and bottom oil storage chamber maritime interior waters volume reduces accordingly, forms oil and water displacement process；
(3). the sea water being discharged to water precipitating fall cabin from oil storage chamber can contain trace crude oil, but owing to the capacity in water precipitating fall cabin is big and the degree of depth is deep, sea water is after oil storage chamber is displaced to water precipitating fall cabin, experienced by the sufficiently long time of staying, just final can be dropped by water precipitating and drain into sea out of my cabin, provide the sufficient secondary separation time to the trace crude oil in sea water；Owing to the most replaced sea water out will settle downwards in water precipitating fall cabin, the trace crude oil in sea water gradually floats under the effect of the oil-water ratio method of double differences, and finally accumulates in the top in water precipitating fall cabin, it is achieved that the secondary separation of profit；
(4). through long secondary separation, by water precipitating fall cabin through the sea water of outer water pipe discharge into sea, it is up to discharge standard；And it being positioned at the oil slick that water precipitating fall top, cabin is assembled, the flow process being squeezed into platform upper chunk by oil slick emptying pump is processed.
The oil-water displacement process of crude oil is unloaded in open side type platform the most according to claim 1 storage, it is characterised in that: in described emptying flow process, the detailed process of oil and water displacement is as follows:
1., when the crude oil in oil storage chamber nearly stores up full, when i.e. oil-water interfaces reach maximum volume of compartment position, crude oil exporting flow process should be started in time and carry out emptying；
2. during crude oil exporting, start and be arranged in the output pump of crude oil in pump room, in oil storage chamber, the crude oil of storage is by pumping into upper chunk after the output pump supercharging of crude oil, then, entering shuttle tanker the most after metering, now, the sea water of equivalent is under hydrostatic pressure, by being entered the bottom of oil storage chamber through inner conduit by water precipitating fall cabin, supplement displacement by outer defeated crude oil；Meanwhile, the sea water of equivalent, under hydrostatic pressure, will be supplemented the water precipitating fall cabin on entrance top by the bottom of outer water pipe through outer water pipe；
3. during crude oil exporting, the crude oil volume in oil storage chamber gradually decreases, and seawater bulk is gradually increased, and forms water oil replacement process；In order to avoid the emulsifying of oil-water interfaces in oil storage chamber, in oil storage chamber, the oil-water interfaces rate of climb need to control within limits；
4. when oil-water interfaces oil reaches oil storage chamber 1 control point, top in oil storage chamber, when i.e. oil-water interfaces minimize volume of compartment position, close down the output pump of crude oil, terminate crude oil exporting flow process.
The oil-water displacement process of crude oil is unloaded in open side type platform the most according to claim 1 storage, it is characterised in that: oil-water interface control depth location of about 10% to 90% in oil storage chamber in described oil storage chamber.
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| CN113232791A (en) * | 2021-06-25 | 2021-08-10 | 西南石油大学 | Underwater large-scale oil-water replacement oil storage and discharge method suitable for offshore oil development |
| CN113804497A (en) * | 2021-10-15 | 2021-12-17 | 国网新疆电力有限公司电力科学研究院 | Insulating oil sampling device and method |
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| CN113232791A (en) * | 2021-06-25 | 2021-08-10 | 西南石油大学 | Underwater large-scale oil-water replacement oil storage and discharge method suitable for offshore oil development |
| CN113804497A (en) * | 2021-10-15 | 2021-12-17 | 国网新疆电力有限公司电力科学研究院 | Insulating oil sampling device and method |
| CN113804497B (en) * | 2021-10-15 | 2024-04-05 | 国网新疆电力有限公司电力科学研究院 | Insulating oil sampling device and method |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: Offshore Oil Engineering Co., Ltd. Applicant after: Beijing Gaotai Deep-sea Technology Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: Offshore Oil Engineering Co., Ltd. Applicant before: Beijing Gaotai Deep-sea Technology Co., Ltd. |
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