CN107140138A - A kind of dry tree oil storage semi-submersible type production platform of deep drinking water - Google Patents
A kind of dry tree oil storage semi-submersible type production platform of deep drinking water Download PDFInfo
- Publication number
- CN107140138A CN107140138A CN201710354638.9A CN201710354638A CN107140138A CN 107140138 A CN107140138 A CN 107140138A CN 201710354638 A CN201710354638 A CN 201710354638A CN 107140138 A CN107140138 A CN 107140138A
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- column
- tank
- production platform
- submersible type
- drinking water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/442—Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of deep dry tree oil storage semi-submersible type production platform of drinking water, it is characterised in that：It includes column, buoyancy tank and upper chunk；The bottom surrounding of the semi-submersible type production platform sets four buoyancy tanks, is setting the column, the top surface support connection upper chunk of four columns described in adjacent two at the knuckle of buoyancy tank；Cargo tank is provided with each column, the first ballast tank is set respectively up and down adjacent to the cargo tank in each column, at the top of each column, equipment compartment is set, it is sky cabin between first ballast tank and equipment compartment above the cargo tank, the second ballast tank is set in each buoyancy tank.The present invention balances the crude oil amount change of cargo tank using the first ballast tank, ensure the draft of whole production platform in 50~60m using the second ballast tank, it is ensured that whole platform keeps less motion amplitude, heaving amplitude very little, the requirement that SCR and dry tree are recovered the oil is met, construction investment is reduced.
Description
Technical field
The present invention relates to a kind of deep dry tree oil storage semi-submersible type production platform of drinking water, belong to field of offshore oil development.
Background technology
With the development of exploitation of offshore oil and gas technology, semisubmersible platform is widely used, wherein, whole world deep water
Oil and gas development facility, about 2/3 floating platform is semi-submerged platform.Traditional semi-submerged platform is used usually as production platform, on
The deck chunk arrangement oil gas water processing establishment in portion, hull arrangement ballast tank and a small amount of equipment cabin, due to traditional semi-submersible type
The exercise performance of platform is not so good as TLP, SPAR platform, selects and bore in riser forms to be restricted in completion mode：It can not use
The lower SCR form standpipes of cost, it is impossible to using dry tree oil production equipment, can only be recovered the oil using flexible pipe and wet type.The material of SCR standpipes
Material takes less than flexible pipe.Oil production equipment is placed on floating platform by dry tree oil recovery technique, is easy to the control and operation recovered the oil, and dry tree is adopted
Oily equipment manufacturing cost is lower, it is adaptable to the oil gas field that well head is concentrated.SCR standpipes and dry tree oil recovery require floating platform motion amplitude
Small, particularly heaving, the floating platform that these factors promote various other forms is used.However, with various other forms
Floating platform is compared, and semi-submerged platform hull and anchoring system cost are relatively low, therefore still promotes industrial quarters in the property of semi-submerged platform
Various trials can be made in terms of improvement.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of dry tree oil recovery can be applied to and using SCR standpipes
The deep dry tree oil storage semi-submersible type production platform of drinking water.
To achieve the above object, the present invention uses following technical scheme：A kind of dry tree oil storage semi-submersible type production of deep drinking water is flat
Platform, it is characterised in that：It includes column, buoyancy tank and upper chunk；The bottom surrounding of the semi-submersible type production platform sets four institutes
Buoyancy tank is stated, the column is being set described in adjacent two at the knuckle of buoyancy tank, and the top surface support of four columns is connected on described
Portion's chunk；Cargo tank is provided with each column, the is set adjacent to the cargo tank respectively up and down in each column
One ballast tank, equipment compartment, first ballast tank and equipment above the cargo tank are set at the top of each column
It is sky cabin between cabin, the second ballast tank is set in each buoyancy tank.
Stull is set between the adjacent column, and the stull is apart from 20~25m of bottom of the column.
The semi-submersible type production platform is positioned using anchoring system.
The column and the adjacent buoyancy tank connect into 135 ° of angles, and make that the column and buoyancy tank be interconnected to form is vertical
Body base of frame cross section is an octagon.
The distance of the cargo tank and sea in the column is 15~18m, the periphery of the cargo tank on the column
Cofferdam is set, and the cargo tank is 36m apart from the upper chunk.
The vertical first passage through the whole column is set in each column, set in each buoyancy tank
The second channel that level runs through the whole buoyancy tank is put, and the first passage is interconnected with the second channel.
Each column is using the cylinder of lower small variable cross-section upper greatly, and the cross section of cylinder is square rounding, described
The variable cross-section region for being located at cargo tank periphery on column is used as the cofferdam.
Each buoyancy tank is column structure, and the cross section of cylinder is square rounding.
The upper chunk includes oil gas water treating module and dry tree oil production equipment.
The present invention uses above technical scheme, and it has the following advantages that：1st, the dry tree oil storage half of the deep drinking water of one kind of the invention
Submersible production platform, the bottom surrounding of the semi-submersible type production platform sets four buoyancy tanks, is set at the knuckle of adjacent two buoyancy tank
Column, the top surface support connection upper chunk of four columns, is provided with cargo tank, adjacent to above and below cargo tank points in each column
First ballast tank is not set, equipment compartment is set at the top of each column, the first ballast tank and equipment compartment above cargo tank it
Between be sky cabin, the second ballast tank is set in each buoyancy tank, balanced using the first ballast tank cargo tank crude oil amount change, utilize
Second ballast tank ensures the draft of whole production platform in 50~60m, it is ensured that whole platform keeps less motion width
Degree, heaving amplitude very little meets the requirement that SCR and dry tree are recovered the oil, reduces construction investment.2nd, the dry tree of the deep drinking water of one kind of the invention
Oil storage semi-submersible type production platform, column and adjacent buoyancy tank connect into 135 ° of angles, and make that column and buoyancy tank be interconnected to form is vertical
Body base of frame cross section is an octagon, can reduce integral platform stress, whole platform is kept less motion amplitude,
The requirement that SCR standpipes and dry type are recovered the oil is met, meanwhile, it is capable to reduce the span of upper chunk, is conducive to the structure of upper chunk
Frame Design.3rd, stull is connected between the dry tree oil storage semi-submersible type production platform of the deep drinking water of one kind of the invention, adjacent upright posts, and it is horizontal
20~25m of bottom apart from column is supportted, the structural strength of whole semisubmersible platform can be strengthened.4th, the deep drinking water of one kind of the invention
The distance of cargo tank and sea in dry tree oil storage semi-submersible type production platform, column is 15~18m, and the periphery of cargo tank is set on column
Cofferdam is put, to ensure the security of cargo tank, and crude oil leakage can be avoided to cause the pollution of marine environment, cargo tank is apart from top
Chunk is 36m, helps to ensure that the security of upper chunk.5th, the dry tree oil storage semi-submersible type production of the deep drinking water of one kind of the invention is flat
Platform, column is using the cylinder of lower small variable cross-section upper greatly, and the cross section of cylinder is square rounding, and buoyancy tank is column structure, post
The cross section of body is square rounding, ensure that drinking water stability of the whole platform during towage, is eaten while meeting operation
The cofferdam arrangement requirement of cargo tank under water.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the overlooking the structure diagram of the present invention；
Fig. 3 is the cabin structure schematic diagram of the present invention.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figures 1 to 3, the invention provides a kind of deep dry tree oil storage semi-submersible type production platform of drinking water, it includes column
1st, buoyancy tank 2 and upper chunk 3.The bottom surrounding of the semi-submersible type production platform sets four buoyancy tanks 2, in the folding of adjacent two buoyancy tank 2
Column 1, the top surface support connection upper chunk 3 of four columns 1 are set at angle.Cargo tank 12 is provided with each column 1.Each
In column 1 ballast tank 11 is set respectively adjacent to cargo tank about 12, equipment compartment is set at the top of each column 1, in cargo tank 12
It is sky cabin between the ballast tank 11 and equipment compartment of top, ballast tank 21 is also set in each buoyancy tank 2.Crude oil in cargo tank 12
Amount is balanced the crude oil amount change in cargo tank 12 using ballast tank 11, utilizes ballast tank with outer defeated and condition of production mechanical periodicity
21 ensure the draft of whole production platform in 50~60m, and such bottom of column 1 and buoyancy tank 2 are away from sea, by wave
Impact it is few, it is ensured that whole platform keeps less motion amplitude, heaving amplitude very little, under 12~15s wave periods, heaving
RAO can reach below 0.2m, meets the requirement that SCR and dry tree are recovered the oil, reduces construction investment.
Further, stull 4 is set between adjacent upright posts 1, and stull 4 is apart from 20~25m of bottom of column 1, to meet
The Structural strength calls of whole production platform.
Further, it is whole raw using 5 pairs of anchoring system as shown in figure 1, being the accurate positioning of the whole production platform of guarantee
Production platform is positioned.
Further, as shown in Fig. 2 column 1 connects into 135 ° of angles with adjacent buoyancy tank 2, make column 1 and buoyancy tank 2 mutual
The space framework bottom cross section that connection is formed is an octagon.So, phase is produced when column 1 and buoyancy tank 2 are by wave force
Difference, reduces integral platform stress, whole platform is kept less motion amplitude, meets the requirement that SCR standpipes and dry type are recovered the oil,
Meanwhile, it is capable to reduce the span of upper chunk 3, the structural framing of upper chunk is conducive to design.
Further, because the displacement of whole platform is larger, to make cargo tank 12 away from sea 6 to ensure the peace of cargo tank 12
Quan Xing, meanwhile, to avoid crude oil leakage, protect the marine environment, the distance on the cargo tank 12 in column 1 and sea 6 is 15~18m,
The periphery of cargo tank 12 sets cofferdam 14 on column 1, meanwhile, cargo tank 12 is 36m or so apart from upper chunk 3, it helps
Ensure the security of upper chunk.
Further, the passage 13 that whole column 1 is run through vertically is set in each column 1, set in each buoyancy tank 2
Level runs through the passage 22 of whole buoyancy tank 2, and passage 13 in column 1 is interconnected with the passage 22 in buoyancy tank 2, so as to vertical
Overall ballast and crude oil piping is formed in post 1 and buoyancy tank 2, is easy to staff's current.
Further, each column 1 is using the cylinder of lower small variable cross-section upper greatly, and the cross section of cylinder is square rounding
The variable cross-section region for being located at the periphery of cargo tank 12 on angle, column 1 is used as cofferdam 14.So setting ensure that whole platform from ship
Drinking water stability during factory to oil gas field towage, while meeting the cofferdam arrangement requirement of cargo tank 12 under operating draft.
Further, each buoyancy tank 2 is a column structure, and the cross section of cylinder is square rounding.
Further, upper chunk 3 includes oil gas water treating module and dry tree oil production equipment, and well liquid passes through dry tree from seabed
Top tensioned riser (abbreviation TTR) in oil production equipment is transported to upper chunk 3, and well liquid is through the oil gas water process in upper chunk 3
After resume module, natural gas passes through defeated outside the steel catenary riser (abbreviation SCR) in dry tree oil production equipment.
The present invention is only illustrated with above-described embodiment, and structure, set location and its connection of each part are all to have
Changed.On the basis of technical solution of the present invention, all improvement carried out according to the principle of the invention to individual part or equivalent
Conversion, should not be excluded outside protection scope of the present invention.
Claims (9)
1. a kind of dry tree oil storage semi-submersible type production platform of deep drinking water, it is characterised in that：It includes column, buoyancy tank and upper chunk；
The bottom surrounding of the semi-submersible type production platform sets four buoyancy tanks, described vertical being set described in adjacent two at the knuckle of buoyancy tank
Post, the top surface support connection upper chunk of four columns；Cargo tank is provided with each column, each described
The first ballast tank is set respectively up and down adjacent to the cargo tank in column, equipment compartment is set at the top of each column,
It is sky cabin between first ballast tank and equipment compartment above the cargo tank, the second ballast is set in each buoyancy tank
Cabin.
2. a kind of deep dry tree oil storage semi-submersible type production platform of drinking water as claimed in claim 1, it is characterised in that：It is adjacent described vertical
Stull is set between post, and the stull is apart from 20~25m of bottom of the column.
3. a kind of deep dry tree oil storage semi-submersible type production platform of drinking water as claimed in claim 1, it is characterised in that：The semi-submersible type is given birth to
Production platform is positioned using anchoring system.
4. the dry tree oil storage semi-submersible type production platform of the deep drinking water of one kind as described in claim 1 or 2 or 3, it is characterised in that：It is described
Column connects into 135 ° of angles with the adjacent buoyancy tank, the space framework bottom transverse for being interconnected to form the column and buoyancy tank
Section is an octagon.
5. a kind of deep dry tree oil storage semi-submersible type production platform of drinking water as claimed in claim 1, it is characterised in that：In the column
The cargo tank and sea distance be 15~18m, on the column cargo tank periphery set cofferdam, the cargo tank
It is 36m apart from the upper chunk.
6. a kind of deep dry tree oil storage semi-submersible type production platform of drinking water as claimed in claim 1, it is characterised in that：Each described
The vertical first passage through the whole column is set in column, level is set in each buoyancy tank through whole described
The second channel of buoyancy tank, and the first passage and the second channel are interconnected.
7. a kind of deep dry tree oil storage semi-submersible type production platform of drinking water as claimed in claim 5, it is characterised in that：It is each described vertical
Post is using the cylinder of lower small variable cross-section upper greatly, and the cross section of cylinder is to be located at the cargo tank on square rounding, the column
The variable cross-section region of periphery is used as the cofferdam.
8. a kind of deep dry tree oil storage semi-submersible type production platform of drinking water as claimed in claim 1, it is characterised in that：It is each described floating
Case is column structure, and the cross section of cylinder is square rounding.
9. a kind of deep dry tree oil storage semi-submersible type production platform of drinking water as claimed in claim 1, it is characterised in that：The upper group
Block includes oil gas water treating module and dry tree oil production equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354638.9A CN107140138B (en) | 2017-05-19 | 2017-05-19 | A kind of dry tree oil storage semi-submersible type production platform of deep drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354638.9A CN107140138B (en) | 2017-05-19 | 2017-05-19 | A kind of dry tree oil storage semi-submersible type production platform of deep drinking water |
Publications (2)
| Publication Number | Publication Date |
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| CN107140138A true CN107140138A (en) | 2017-09-08 |
| CN107140138B CN107140138B (en) | 2019-10-25 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866888A (en) * | 2019-03-25 | 2019-06-11 | 中国海洋石油集团有限公司 | The dry tree semi-submerged platform heave plate of one kind and main hull relative motion inhibit device |
| CN110316329A (en) * | 2019-07-17 | 2019-10-11 | 中海石油(中国)有限公司 | A kind of semisubmersible platform oil storage chamber and semisubmersible platform |
| CN110329444A (en) * | 2019-07-08 | 2019-10-15 | 中海石油(中国)有限公司 | A kind of production of hydrocarbons platform and its design method |
| CN111232145A (en) * | 2020-03-03 | 2020-06-05 | 中海石油(中国)有限公司 | Overall layout of deepwater semi-submersible production platform |
| CN113386918A (en) * | 2021-07-19 | 2021-09-14 | 中国海洋石油集团有限公司 | Deep water semi-submersible type production platform lower floating body and block closing method thereof |
| CN114604379A (en) * | 2022-03-28 | 2022-06-10 | 中海石油(中国)有限公司 | Semi-submersible floating type fan foundation with anti-collision isolation cabin on stand column |
| CN114771759A (en) * | 2022-05-12 | 2022-07-22 | 中海石油(中国)有限公司 | Buoyancy eccentric semi-submerged floating type fan foundation suitable for large megawatt unit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866888A (en) * | 2019-03-25 | 2019-06-11 | 中国海洋石油集团有限公司 | The dry tree semi-submerged platform heave plate of one kind and main hull relative motion inhibit device |
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| CN110329444A (en) * | 2019-07-08 | 2019-10-15 | 中海石油(中国)有限公司 | A kind of production of hydrocarbons platform and its design method |
| CN110316329A (en) * | 2019-07-17 | 2019-10-11 | 中海石油(中国)有限公司 | A kind of semisubmersible platform oil storage chamber and semisubmersible platform |
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| CN111232145A (en) * | 2020-03-03 | 2020-06-05 | 中海石油(中国)有限公司 | Overall layout of deepwater semi-submersible production platform |
| CN113386918A (en) * | 2021-07-19 | 2021-09-14 | 中国海洋石油集团有限公司 | Deep water semi-submersible type production platform lower floating body and block closing method thereof |
| CN114604379A (en) * | 2022-03-28 | 2022-06-10 | 中海石油(中国)有限公司 | Semi-submersible floating type fan foundation with anti-collision isolation cabin on stand column |
| CN114771759A (en) * | 2022-05-12 | 2022-07-22 | 中海石油(中国)有限公司 | Buoyancy eccentric semi-submerged floating type fan foundation suitable for large megawatt unit |
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