CN109094746B - Buoyancy tower platform and installation method thereof - Google Patents
Buoyancy tower platform and installation method thereof Download PDFInfo
- Publication number
- CN109094746B CN109094746B CN201810824155.5A CN201810824155A CN109094746B CN 109094746 B CN109094746 B CN 109094746B CN 201810824155 A CN201810824155 A CN 201810824155A CN 109094746 B CN109094746 B CN 109094746B
- Authority
- CN
- China
- Prior art keywords
- tower body
- level tower
- level
- stage tower
- buoyancy
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Links
- 238000000034 method Methods 0.000 title description 11
- 238000009434 installation Methods 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000013535 sea water Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000007704 transition Effects 0.000 description 5
- 238000011900 installation process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000000545 stagnation point adsorption reflectometry Methods 0.000 description 1
Classifications
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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
- B63B35/4406—Articulated towers, i.e. substantially floating structures comprising a slender tower-like hull anchored relative to the marine bed by means of a single articulation, e.g. using an articulated bearing
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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
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/26—Anchors securing to bed
- B63B21/27—Anchors securing to bed by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
Abstract
The invention discloses a buoyancy tower platform, which comprises a suction pile and a first-stage tower body, wherein the first-stage tower body comprises at least one column body, the suction pile is arranged at the bottom of the first-stage tower body, the buoyancy tower platform also comprises a second-stage tower body, the column body of the second-stage tower body corresponds to the column body of the first-stage tower body, a concave groove is formed in the center of the top of the column body of the first-stage tower body, the section specification of the concave groove is matched with the section of the column body of the second-stage tower body, the lower part of the column body of the second-stage tower body is correspondingly embedded in the concave groove on the column body of the first-stage tower body, and the upper part of the second-stage tower body is provided with an superstructure. Compared with the existing buoyancy tower platform, the buoyancy tower platform provided by the invention can be suitable for operation in different water deep sea areas.
Description
Technical Field
The invention relates to a buoyancy tower platform and a method for adjusting water depth by the same, belonging to the field of ocean engineering.
Background
The buoyancy tower platform is a platform which is used for collecting and storing condensate oil or crude oil, the appearance of the buoyancy tower platform is similar to that of a SPAR platform, but the buoyancy tower platform body structure is extended to the seabed all the time and is fixed on the seabed through a self-contained shallow foundation cylindrical suction pile to move along with waves, one great advantage of the buoyancy tower platform is that the buoyancy tower platform can be installed automatically without auxiliary and transportation and installation equipment, the installation and the disassembly are convenient, the transition reapplication can be realized, but the buoyancy tower platform is a platform with fixed total height at present, such as the platform related to patent 2011800612002 and 2013104737690, the applicable water depth of the platform cannot be adjusted, the transition reapplication requires that the water depth is kept basically consistent, the application range is greatly restricted, and if the applicable water depth is adjusted by adopting self-elevating-like equipment, the leap of the platform cost is changed, and the original purpose of the buoyancy tower platform is cheap.
Disclosure of Invention
The invention aims to solve the technical problem that the existing buoyancy tower platform is only suitable for a single water depth.
In order to solve the problems, the buoyancy tower platform comprises a suction pile and a first-stage tower body, wherein the first-stage tower body comprises at least one column body, the suction pile is arranged at the bottom of the first-stage tower body, the buoyancy tower platform further comprises a second-stage tower body, the column body of the second-stage tower body corresponds to the column body of the first-stage tower body, a concave groove is formed in the center of the top of the column body of the first-stage tower body, the section specification of the concave groove is matched with the section of the column body of the second-stage tower body, the lower part of the column body of the second-stage tower body is correspondingly embedded into the concave groove on the column body of the first-stage tower body, and an upper building is arranged on the upper part of the second-stage tower body.
According to the technical scheme, the suction tower is a single column or a plurality of columns, the plurality of columns are at least two single columns with the same specification and are arranged in parallel, and the upper end and the lower end of the suction tower are all on the same horizontal plane.
According to the technical scheme, the second-stage tower body is split, and the change of the applicable water depth can be realized by replacing the second-stage tower bodies with different heights.
Further optimizing the technical scheme, the height of the second-stage tower body is not more than 5 times of the depth of the concave groove.
The buoyancy tower platform installation method comprises the following steps of draining a first-stage tower body, injecting water into the first-stage tower body, sinking the first-stage tower body, ensuring that the top end of the first-stage tower body is above the surface of sea water, moving the first-stage tower body to be close to a semi-submersible vessel, placing the first-stage tower body under a second-stage tower body of an outboard bracket of the semi-submersible vessel, draining the first-stage tower body, floating the first-stage tower body, embedding and butting a concave groove on the first-stage tower body with the second-stage tower body, injecting water into the buoyancy tower body, enabling the upper end of the second-stage tower body to be higher than an installation superstructure, and installing the superstructure on the upper end of the second-stage tower body.
In the scheme, the height of the second-stage tower body can be selected according to the depth of the construction sea area.
The reverse process of the installation method is a platform dismantling method.
Compared with the existing buoyancy tower platform, the buoyancy tower platform provided by the invention can be suitable for operation in different water deep sea areas.
Drawings
FIG. 1 is a schematic view of a buoyancy tower platform according to the present invention;
FIG. 2 is a diagram of a conventional buoyancy tower platform in comparison to the buoyancy tower platform of the present invention utilizing a second stage tower of different specifications;
fig. 3 to 12 are schematic views of the installation process of the buoyancy tower platform according to the present invention.
Detailed Description
Embodiments of the buoyancy tower platform according to the present invention are described below with reference to fig. 1 and 2:
the existing buoyancy tower body consists of a single column or a plurality of columns, typically a four-column buoyancy tower platform, the column structure of the buoyancy tower body is higher than the free surface, namely the sea level 5, and the upper building is lifted by a support, but the existing buoyancy tower is a fixed total height platform, the applicable water depth can not be adjusted, and the application range of transition is limited.
As shown in FIG. 1, the buoyancy tower platform comprises a suction pile 1 and a first-stage tower body 2, wherein the suction pile 1 is arranged at the bottom of the first-stage tower body 2, the first-stage tower body is of a four-column structure, and four columns are formed by four cylinders with the same specification in parallel, so that the end faces of the four cylinders are ensured to be on the same horizontal plane.
The novel tower also comprises a second-stage tower body 3, wherein the second-stage tower body 3 is also of a four-column structure, the four columns are formed by four cylinders with the same specification in parallel, and the end faces of the four cylinders are ensured to be on the same horizontal plane.
The top centers of the four cylinders of the first-stage tower body 2 are provided with concave grooves, the section specifications of the concave grooves are matched with the section of the cylinder of the second-stage tower body 3, the lower parts of the four cylinders of the second-stage tower body 3 are correspondingly embedded into the concave grooves on the four cylinders of the first-stage tower body 2, and the upper part of the second-stage tower body 3 is provided with an superstructure 4.
As shown in fig. 2, the adjustment of the applicable water depth can be achieved by replacing the second-stage tower bodies 3 with different heights, and an expensive self-elevating system is not needed, which has positive significance for the transition and reapplication of the buoyancy tower platform in the marginal oilfield sea area.
Referring to fig. 3-12, a buoyancy tower platform mounting method:
a. the buoyancy tower and the superstructure 4 thereof are transported by a semi-submersible, wherein the first-stage tower body 2 is horizontally laid on the deck of the semi-submersible, and the second-stage tower body 3 and the superstructure 4 are sequentially arranged on a bracket 6 and can slide on the bracket 6, and the bracket 6 extends to the outside of the ship side for a section;
b. the semi-submersible vessel is submerged, the first-stage tower body 2 floats, and the tug tows the first-stage tower body 2 away from the semi-submersible vessel;
c. injecting water into the bottom of the first-stage tower body 2 to enable the first-stage tower body 2 to sink, wherein the top end of the first-stage tower body 2 is ensured to be above the free surface 5;
d. the first-stage tower body 2 is pushed to approach the semi-submersible vessel and is placed under a bracket 6 extending to the outer side of the ship side on the semi-submersible vessel;
e. sliding the second-stage tower body 3 to the position right above the first-stage tower body 2 on the bracket 6;
f. draining and floating the first-stage tower body 2, abutting the first-stage tower body 2 with the second-stage tower body 3 at the moment, embedding the second-stage tower body 3 into the first-stage tower body 2, and riveting and fixing;
g. injecting water into the first-stage tower body 2 again, wherein the first-stage tower body 2 sinks at the moment, and taking care of ensuring that the top end of the second-stage tower body 3 is above the free surface 5;
h. sliding the superstructure 4 on the bracket 6 to the position right above the second-stage tower body 3;
i. draining and floating the first-stage tower body 2, and abutting the second-stage tower body 3 with the superstructure 4 at the moment, and riveting and fixing the second-stage tower body;
j. the whole buoyancy tower is towed to a target water area for installation.
The dismantling process of the buoyancy tower is the reverse process of the installation process, and the transition reinstallation can be conveniently realized by the method.
The ultimate length of the second-stage tower 3 depends on the structural strength and the depth of the second-stage tower 3 embedded within the first-stage tower 2, and it is generally recommended that the total length of the second-stage tower 3 not exceed 5 times the embedded length.
Claims (1)
1. Buoyancy tower platform, including the suction stake, first level tower body contains at least one cylinder, the suction stake sets up in the bottom of first level tower body, its characterized in that: still include the second level tower body, the cylinder of second level tower body is corresponding with the cylinder of first level tower body, the cylinder top center of first level tower body is equipped with sunken groove, sunken groove cross-section specification and the cylinder cross-section assorted of second level tower body, the cylinder lower part of second level tower body corresponds the embedding in sunken groove on the cylinder of first level tower body, the upper portion of second level tower body is provided with the superstructure, and the buoyancy tower is single cylinder or multi-column body, the multi-column body is at least two single cylinder parallel arrangement of same specification and upper and lower extreme and all in same horizontal plane, the second level tower body is detachable structure, can realize the change of suitable depth of water through changing the second level tower body of different co-altitude, second level tower body height does not exceed sunken groove degree of depth 5 times, contains the following step, with first level tower body down water injection, makes first level tower body down, ensures that first level tower body top is above the sea water surface, and the removal first level tower body makes its be close to half-submerged body, and the second level tower body is just above the second level tower body is installed to the second level carrier, and the second level tower body is just above the second level tower body, and the second level tower body is just above the foundation, and the second level tower body is just above the second level tower body is installed to the second level tower body, and the second level tower body is just above the water carrier.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810824155.5A CN109094746B (en) | 2018-07-25 | 2018-07-25 | Buoyancy tower platform and installation method thereof |
| PCT/CN2018/113314 WO2020019559A1 (en) | 2018-07-25 | 2018-11-01 | Buoyancy tower platform and installation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810824155.5A CN109094746B (en) | 2018-07-25 | 2018-07-25 | Buoyancy tower platform and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109094746A CN109094746A (en) | 2018-12-28 |
| CN109094746B true CN109094746B (en) | 2023-09-29 |
Family
ID=64847403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810824155.5A Active CN109094746B (en) | 2018-07-25 | 2018-07-25 | Buoyancy tower platform and installation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109094746B (en) |
| WO (1) | WO2020019559A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212099278U (en) * | 2020-03-25 | 2020-12-08 | 上海惠生海洋工程有限公司 | Shallow water is from mounting platform |
| CN111391986B (en) * | 2020-03-27 | 2022-02-01 | 中国海洋石油集团有限公司 | Floating type launching truss and jacket comprising same |
Citations (10)
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| US6309141B1 (en) * | 1997-12-23 | 2001-10-30 | Shell Oil Company | Gap spar with ducking risers |
| CN101618757A (en) * | 2008-07-02 | 2010-01-06 | 中船重工船舶设计研究中心有限公司 | A kind of SPAR platform hard cabin |
| KR20120044412A (en) * | 2010-10-28 | 2012-05-08 | 삼성중공업 주식회사 | Method for assembling offshore structure |
| CN103270239A (en) * | 2010-10-19 | 2013-08-28 | 霍顿-维森深水公司 | Offshore tower for drilling and/or production |
| CN203486110U (en) * | 2013-10-12 | 2014-03-19 | 惠生（南通）重工有限公司 | Buoyant-tower-type ocean platform |
| CN105460175A (en) * | 2015-11-17 | 2016-04-06 | 天津大学 | Single-column platform in type of sinking to bottom of shallow water |
| CN105951873A (en) * | 2016-05-11 | 2016-09-21 | 中国海洋大学 | Submarine double-cylinder suction anchor |
| CN106218830A (en) * | 2016-09-21 | 2016-12-14 | 中国海洋石油总公司 | A kind of tension leg platform (TLP) that wide buoyancy tank is set |
| CN107878699A (en) * | 2017-11-30 | 2018-04-06 | 惠生（南通）重工有限公司 | A kind of Floating LNG production vessel |
| CN209366399U (en) * | 2018-07-25 | 2019-09-10 | 惠生（南通）重工有限公司 | Buoyant tower platform |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6729804B1 (en) * | 2002-08-22 | 2004-05-04 | Itrec B.V. | Cantilevered tower for jack-up platform |
| JP5738643B2 (en) * | 2011-03-25 | 2015-06-24 | 戸田建設株式会社 | Installation method of offshore wind power generation equipment |
| CN103482036A (en) * | 2013-10-12 | 2014-01-01 | 惠生（南通）重工有限公司 | Buoyancy tower type ocean platform |
| CN107792306B (en) * | 2017-11-24 | 2023-08-15 | 惠生（南通）重工有限公司 | Buoyancy tower platform |
-
2018
- 2018-07-25 CN CN201810824155.5A patent/CN109094746B/en active Active
- 2018-11-01 WO PCT/CN2018/113314 patent/WO2020019559A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6309141B1 (en) * | 1997-12-23 | 2001-10-30 | Shell Oil Company | Gap spar with ducking risers |
| CN101618757A (en) * | 2008-07-02 | 2010-01-06 | 中船重工船舶设计研究中心有限公司 | A kind of SPAR platform hard cabin |
| CN103270239A (en) * | 2010-10-19 | 2013-08-28 | 霍顿-维森深水公司 | Offshore tower for drilling and/or production |
| KR20120044412A (en) * | 2010-10-28 | 2012-05-08 | 삼성중공업 주식회사 | Method for assembling offshore structure |
| CN203486110U (en) * | 2013-10-12 | 2014-03-19 | 惠生（南通）重工有限公司 | Buoyant-tower-type ocean platform |
| CN105460175A (en) * | 2015-11-17 | 2016-04-06 | 天津大学 | Single-column platform in type of sinking to bottom of shallow water |
| CN105951873A (en) * | 2016-05-11 | 2016-09-21 | 中国海洋大学 | Submarine double-cylinder suction anchor |
| CN106218830A (en) * | 2016-09-21 | 2016-12-14 | 中国海洋石油总公司 | A kind of tension leg platform (TLP) that wide buoyancy tank is set |
| CN107878699A (en) * | 2017-11-30 | 2018-04-06 | 惠生（南通）重工有限公司 | A kind of Floating LNG production vessel |
| CN209366399U (en) * | 2018-07-25 | 2019-09-10 | 惠生（南通）重工有限公司 | Buoyant tower platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109094746A (en) | 2018-12-28 |
| WO2020019559A1 (en) | 2020-01-30 |
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Address after: 226000 port industrial zone 3, Nantong Economic and Technological Development Zone, Jiangsu Province Patentee after: Wison Clean Energy Technology Group Co.,Ltd. Country or region after: China Address before: 226009 Jianghai Road 189, Nantong Economic and Technological Development Zone, Nantong City, Jiangsu Province Patentee before: WISON(NANTONG) HEAVY INDUSTRY Co.,Ltd. Country or region before: China |