CN203094391U - Semi-submersible platform with heave plates - Google Patents
Semi-submersible platform with heave plates Download PDFInfo
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- CN203094391U CN203094391U CN 201220698558 CN201220698558U CN203094391U CN 203094391 U CN203094391 U CN 203094391U CN 201220698558 CN201220698558 CN 201220698558 CN 201220698558 U CN201220698558 U CN 201220698558U CN 203094391 U CN203094391 U CN 203094391U
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Abstract
The utility model relates to a semi-submersible platform with heave plates. The semi-submersible platform is characterized by comprising a quadrilateral platform body on a ship body. A vertical column is disposed at the bottom of each of four corners of the platform body. Connecting lines of the four vertical columns form a quadrilateral structure. A quadrilateral annular buoyancy pontoon is disposed on the inner sides of the four vertical columns. Each of four corner ends of the buoyancy pontoon is connected with one vertical column correspondingly. Four inner corners of a pontoon body of the buoyancy pontoon are provided with heave plate truss connectors which are connected to a heave plate truss. The heave plate truss comprises four vertical straight rods which are correspondingly hung at the heave plate truss connectors. A plurality layers of heave plates are horizontally disposed on the heave plate truss at intervals. The semi-submersible platform is good in economy and stability, excellent in heave motion performance, capable of realizing fast and simple mounting of heave plates, suitable for the requirements of different oil extraction modes such as dry oil extraction, wet oil extraction and dry-wet combined oil extraction, and promising in development prospect, and the requirements of deep-water and ultra-deep-water operations are satisfied.
Description
Technical field
The utility model relates to a kind of semisubmersible platform, particularly about a kind of have to hang down swing the semisubmersible platform of plate.
Background technology
The deep water floating platform is one of important equipment in the exploitation of deep water marine oil and gas.The flat-bed exercise performance is that it needs one of main performance of considering in exploitation of oil-gas field is used.The platform of exercise performance excellence can be put into christmas tree and carry out production operation on the platform work deck, promptly so-called dry tree.The platform that exercise performance is relatively poor need be put into christmas tree and carry out production operation under water, promptly so-called wet-type christmas tree.Wet-type christmas tree is installed under water, its construction, cost of installation is higher, control with maintenance difficulties bigger, operating cost costliness such as well workover especially.If floating platform can satisfy the operating needs of dry tree, then the operating cost in deep water hydrocarbon field can significantly be reduced.
The deep water floating platform mainly contains three kinds of forms at present: tension leg platform, deep draft column formula platform and semisubmersible floating platform.Wherein tension leg platform and deep draft open side type platform can satisfy dry type oil recovery requirement.But when the depth of water surpassed 1500 meters, the design and installation difficulty of tension leg platform was bigger, and cost sharply rises.Deep draft open side type flat-bed Texas deck area is little, and costs such as transportation and marine installation are higher, and difficulty is bigger.And semisubmersible platform is built, transportation is simple relatively, and its mooring form is insensitive to the depth of water, hangs down just that it is bigger to swing motion, can't satisfy the operating needs of dry tree; If can reduce its motion response, satisfy the operating needs of dry tree, then have good application prospects.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides and a kind ofly can improve the platform stability, improves platform catenary motion performance, guarantees that platform structure can satisfy having of dry tree and hang down and swing the semisubmersible platform of plate.
For achieving the above object, the utility model is taked following technical scheme: a kind of have to hang down swing the semisubmersible platform of plate, it is characterized in that: it comprises the quadrangle platform body on the hull, the all vertical root post that is provided with of four angles bottom portion of described platform body, the line of four described columns constitutes quadrilateral structure; The inboard of four described columns is provided with a tetragonal annular floating drum, described column of the corresponding respectively connection of four angle ends of described floating drum; Inboard four corners of the cylindrical shell of described floating drum are provided with to hang down swings the plate girder connecting device; Described hanging down swung the vertical plate girder that swings of plate girder connecting device connection; The described vertical straight-bar that plate girder comprises four vertical settings that swings, four corresponding respectively described hanging down that hang on the inboard setting of described floating drum of described straight-bar are swung the board connecting equipment places, and described vertical swinging has been horizontally disposed with the vertical plate that swings of several layers at interval on the plate girder.
Described hang down swung plate and is provided with two-layer.
Described hang down swung plate and is provided with three layers.
The utility model is owing to take above technical scheme, it has the following advantages: 1, floating drum of the present utility model is arranged on the centre of four root posts, adopt the mode of receiving in this kind floating drum, with respect to four jiaos of ends of four root posts of traditional platform and floating drum form on same axis respectively, the more close platform of the floating drum center of the utility model platform bottom, the floating drum yardstick reduces, and saves steel and cost, guarantees the vertical sufficient intensity that swings plate and platform connecting portion; And act on the more close platform of wave load center on the floating drum, and the capsizing moment that wave load causes is little, and platform has stability preferably.2, floating drum of the present utility model position is positioned at the centre of four root posts, and being provided with in the toroidal cavity of floating drum hangs down swings board connecting equipment, swing plate for hanging down connection structure is provided, having simplified hangs down swings the installation method of plate, having guaranteed hangs down swings the Joint strenght of plate girder and floating platform hull, improve the platform stability, improve platform catenary motion performance, guarantee that the utility model platform structure satisfies the operating needs of dry tree; Realize vertical fast simple installation of swinging plate simultaneously, the easy-to-install advantage of implementation platform reduces cost of installation.3, the utility model installs additional to hang down and swings the vertical exercise performance that swings that the plate rear platform has excellence, compare with traditional semisubmersible platform, it hangs down and to swing exercise performance and can satisfy dry tree operating needs under the extreme marine environment effect in abominable marine environment zone such as the South China Sea and the Gulf of Mexico.4, of the present utility model hang down swing plate and hang down swing plate girder can be defeated in place by doing haul, the rapid and convenient installation that cable is realized hanging down and swung plate girder and hang down and swing plate is led in connecting device utilization installation, the installation method swing plate of hanging down is simple and easy to do, needn't rely on large-scale construction boats and ships, require low to the construction boats and ships, reduce cost of installation, installation effectiveness height, lower, safe, workable to the marine environment requirement of work permit.5, the utility model is placed the guiding cable downwards by Platform lifting devices, connect the vertical plate girder that swings that swims in the water, draw in after the guiding cable, hang down and swing the connection structure that plate girder top entered and be fixed on the floating drum inboard, therefore, can realize vertical quick connection and installation of swinging plate.In sum, the utility model platform has good and economic, hanging down, it is good to swing exercise performance, good stability performance, can realize hanging down and swing the fast simple installation of plate structure, adapting to different oil recovery pattern needs such as dry type oil recovery, wet type oil recovery and dried wet compound type oil recovery, satisfy deep water, super deepwater work demand, is a kind of platform form with better development prospect.
Description of drawings
Fig. 1 is the utility model lower apron schematic top plan view
Fig. 2 is the utility model lower apron elevational schematic view
Fig. 3 is the vertical method of plate installation schematic flow sheet that swings of the utility model
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1 and Figure 2, the utility model comprise on the hull quadrangle platform body 1(as shown in Figure 3), the line that four angles bottom portion of platform body 1 is all vertical to be provided with a root post 2, four root posts 2 constitutes quadrilateral structure.The inboard of four root posts 2 is provided with a tetragonal annular floating drum 3, and annular floating drum 3 is arranged between four root posts 2, and the corresponding respectively root post 2 that connects of four angle ends of floating drum 3 adopts the mode of receiving in this floating drum, the center of floating drum 3 more close platform bodies 1.Inboard four corners of the cylindrical shell of floating drum 1 are provided with to hang down swings plate girder connecting device 4; Swing plate girder connecting device 4 by hanging down and connect the vertical plate girder 5 that swings.Hang down and swing the straight-bar that plate girder 5 comprises four vertical settings, four corresponding respectively floating drum 3 inboard vertical board connecting equipment 4 places of swinging that are provided with that hang on of straight-bar, hanging down to swinging has been horizontally disposed with the vertical plate 6 that swings of several layers at interval on the plate girder 5, hang down to swinging plate 6 and hang down and swing the vertical kinetic damping that swings that plate girder 5 is used to increase platform body 1.
In the above-mentioned enforcement, hang down and to swing plate 6 and can be provided with two-layer or three layers.
In the above-mentioned enforcement, the interior receipts degree of floating drum 3 can be optimized design according to the requirement of disparity items.
As shown in Figure 3, the vertical installation method that swings plate of the utility model may further comprise the steps:
1) at first the platform body 1 of hull in place after, utilize transportation towboat 7 to hang down to swing plate 6 and hang down and swing plate girder 5 and be transported near the platform body 1, the top section part of swinging plate girder 5 of hanging down is installed buoyant mass 8 in advance.The design of buoyant mass 8 need guarantee that buoyancy is slightly less than to hang down to swinging plate girder 5 and to hang down and swing the gravity of plate 6, swing 5 times water of plate girder to guarantee to hang down after, overall buoyancy is less than gravity, structure sinks to marine.
2) transfer to hang down from platform body 1 and swing plate and install and lead cable 9, swing plate with hanging down and to install and lead cable 9 and is connected, will hang down and swing during plate girder discharges water for 5 times, because vertical buoyant mass 8 of swinging plate girder 5 tops acts on the top of swinging plate girder 5 of hanging down, hang down and to swing plate girder 5 and will in water, slowly set upright, and sink gradually.
3) discharge buoyant mass 8, hang down and swing plate 6 and sink to the below of platform body 1 gradually by action of gravity, tightening up hangs down swings plate and installs and lead cable 9, hangs down to swinging plate girder 5 and hang down and swings floating drum 3 positions that plate 6 is pulled up to platform body 1 gradually.
4) tension is hung down and to be swung plate and install and lead cable 9, hang down to swinging plate girder 5 tops and insert to hang down on the floating drum 3 and swing in the plate girder connecting device 4, and locked, promptly finish the installation that the utility model hangs down and swings plate.
In the foregoing description, the structure swing plate 6 of hanging down belongs to prior art, and the middle perforate of hanging down and swinging plate 6 so that production of hydrocarbons standpipe/drilling riser pipe therefrom passes, and can be standpipe cross-tie is provided.
The various embodiments described above only are used to illustrate the utility model; wherein the structure of each parts, position, connection mode etc. be set all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (3)
1. one kind has the vertical semisubmersible platform that swings plate, and it is characterized in that: it comprises the quadrangle platform body on the hull, all vertical root post that is provided with of four angles bottom portion of described platform body, and the line of four described columns constitutes quadrilateral structure; The inboard of four described columns is provided with a tetragonal annular floating drum, described column of the corresponding respectively connection of four angle ends of described floating drum; Inboard four corners of the cylindrical shell of described floating drum are provided with to hang down swings the plate girder connecting device; Described hanging down swung the vertical plate girder that swings of plate girder connecting device connection; The described vertical straight-bar that plate girder comprises four vertical settings that swings, four corresponding respectively described hanging down that hang on the inboard setting of described floating drum of described straight-bar are swung the board connecting equipment places, and described vertical swinging has been horizontally disposed with the vertical plate that swings of several layers at interval on the plate girder.
2. as claimed in claim 1 a kind of have to hang down swing the semisubmersible platform of plate, it is characterized in that: described hanging down swung plate and is provided with two-layer.
3. as claimed in claim 1 a kind of have to hang down swing the semisubmersible platform of plate, it is characterized in that: described hanging down swung plate and is provided with three layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698558 CN203094391U (en) | 2012-12-17 | 2012-12-17 | Semi-submersible platform with heave plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698558 CN203094391U (en) | 2012-12-17 | 2012-12-17 | Semi-submersible platform with heave plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203094391U true CN203094391U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220698558 Expired - Lifetime CN203094391U (en) | 2012-12-17 | 2012-12-17 | Semi-submersible platform with heave plates |
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| Country | Link |
|---|---|
| CN (1) | CN203094391U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010416A (en) * | 2012-12-17 | 2013-04-03 | 中国海洋石油总公司 | Semi-submersible platform with heave plates and installing method of heave plates |
| CN104943827A (en) * | 2014-06-13 | 2015-09-30 | 中国水利水电科学研究院 | Offshore floating platform |
| CN107082390A (en) * | 2017-06-26 | 2017-08-22 | 上海海事大学 | Semisubmersible platform production tree transfers guider |
| CN107600351A (en) * | 2017-07-19 | 2018-01-19 | 湖南工程学院 | It is a kind of to shake device and wind-powered electricity generation O＆M ship for the anti-of offshore wind farm O＆M ship |
| CN107618632A (en) * | 2017-07-19 | 2018-01-23 | 湖南工程学院 | Six degree of freedom stabilising arrangement and wind-powered electricity generation O＆M ship for offshore wind farm O＆M ship |
-
2012
- 2012-12-17 CN CN 201220698558 patent/CN203094391U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010416A (en) * | 2012-12-17 | 2013-04-03 | 中国海洋石油总公司 | Semi-submersible platform with heave plates and installing method of heave plates |
| CN104943827A (en) * | 2014-06-13 | 2015-09-30 | 中国水利水电科学研究院 | Offshore floating platform |
| CN107082390A (en) * | 2017-06-26 | 2017-08-22 | 上海海事大学 | Semisubmersible platform production tree transfers guider |
| CN107082390B (en) * | 2017-06-26 | 2018-05-11 | 上海海事大学 | Semisubmersible platform production tree transfers guider |
| CN107600351A (en) * | 2017-07-19 | 2018-01-19 | 湖南工程学院 | It is a kind of to shake device and wind-powered electricity generation O＆M ship for the anti-of offshore wind farm O＆M ship |
| CN107618632A (en) * | 2017-07-19 | 2018-01-23 | 湖南工程学院 | Six degree of freedom stabilising arrangement and wind-powered electricity generation O＆M ship for offshore wind farm O＆M ship |
| CN107600351B (en) * | 2017-07-19 | 2020-04-07 | 湖南工程学院 | Anti-shaking device for offshore wind power operation and maintenance ship and wind power operation and maintenance ship |
| CN107618632B (en) * | 2017-07-19 | 2020-04-07 | 湖南工程学院 | Six-freedom-degree stabilizing device for offshore wind power operation and maintenance ship and wind power operation and maintenance ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term |