CN203889018U - Marine drilling platform with two layers of triangular tension legs - Google Patents
Marine drilling platform with two layers of triangular tension legs Download PDFInfo
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- CN203889018U CN203889018U CN201420299195.XU CN201420299195U CN203889018U CN 203889018 U CN203889018 U CN 203889018U CN 201420299195 U CN201420299195 U CN 201420299195U CN 203889018 U CN203889018 U CN 203889018U
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- lower floor
- upper layer
- stand columns
- upper strata
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Abstract
The utility model provides a marine drilling platform with two layers of triangular tension legs. The marine drilling platform is structurally composed of an upper layer structure, upper layer stand columns, an upper layer buoyancy box, lower layer stand columns and a lower layer buoyancy box. The top of the upper layer buoyancy box is connected to the bottom of the upper layer structure through the upper layer stand columns. The top of the lower layer buoyancy box is connected to the bottom of the upper layer buoyancy box through the lower layer stand columns. The upper layer stand columns and the lower layer stand columns are distributed in a regular triangular mode. The ratio of the vertical length of the upper layer stand columns to the vertical length of the lower layer stand columns is from 2:1 to 3:1. According to the marine drilling platform with the two layers of the triangular tension legs, a regular triangle stand column layout is adopted, so that the platform has excellent hydrodynamic performance and motion response performance in all the wave directions; by the adoption of the two-layer structure, additional mass of the heaving motion of the platform is increased, the fixed cycle of the heaving motion is prolonged, the wave period range is avoided, the resonance linear is avoided, and fatigue of a vertical tube is relieved.
Description
Technical field
The utility model relates to boats and ships and field of ocean engineering, relates in particular to a kind of platform, more particularly, relates to a kind of double-deck triangle tension leg marine drilling platform.
Background technology
In the exploitation of marine oil and gas resource, platform, for marine operation and life provide place, carries all facilities and equipments and personnel's load, will resist severe marine environment effect simultaneously, guarantees job safety, because of but most crucial content wherein.Along with the development of offshore oil exploration and exploitation cause, the various platforms that are applicable to different work environment arise at the historic moment.
Along with in the last few years, almost exploitation is exhausted for the oil and natural gas in shallow sea, and the brill of surveying of marine oil progressively moves towards 300 meters of following more deepwater field.Under this background, the marine drilling platform that tension leg platform, semisubmersible platform, Spar platform etc. are suitable for deepwater field is more and more used.TLP is a kind of for the water probing relatively dark and the floating platform of producing.
Utility model content
The purpose of this utility model is exactly that in order to develop, a kind of hydrodynamic performance and exercise performance are good, the better double-deck triangle tension leg marine drilling platform of stability.
The purpose of this utility model can realize by following scheme.
The double-deck triangle tension leg marine drilling platform that the utility model provides is comprised of superstructure, upper strata column, upper strata buoyancy tank, lower floor's column, lower floor's buoyancy tank.Buoyancy tank top, upper strata is connected to superstructure bottom by upper strata column, and lower floor's buoyancy tank top is connected to buoyancy tank bottom, upper strata by lower floor's column.
Upper strata column and lower floor's column are equilateral triangle and distribute, and the vertical length of upper strata column and lower floor's column compares at 2:1 between 3:1.
Lower floor's buoyancy tank is provided with ballast tank; Lower floor's buoyancy tank is connected to the pile foundation in seabed by tension force muscle tendon.
Superstructure can be provided with one or more in following equipment: drilling rig, life building, hoisting device, helicopter, hardstand, life boat.
The beneficial effects of the utility model are: double-deck triangle tension leg marine drilling platform of the present utility model adopts the column layout of equilateral triangle, makes platform can guarantee a good hydrodynamic performance and motion response performance downwards at each wave; Adopt double-decker, increase the added mass of the heaving of platform, thereby increase the natural period of heaving, avoid period of a wave scope, avoid that resonance occurs linear, alleviated the fatigue of standpipe.
Accompanying drawing explanation
Fig. 1 is the hull structure schematic diagram of double-deck triangle tension leg marine drilling platform of the present utility model.
Fig. 2 is the column schematic layout pattern of double-deck triangle tension leg marine drilling platform of the present utility model.
Fig. 3 is the lateral plan of double-deck triangle tension leg marine drilling platform of the present utility model.
In figure, 1. superstructure, 2. upper strata column, 3. upper strata buoyancy tank, 4. lower floor's column, 5. lower floor's buoyancy tank, 6. drilling rig, 7. life building, 8. hoisting device, 9. helicopter, 10. hardstand, 11. life boat, 12. tension force muscle tendons, 13. ballast tanks.
The specific embodiment
Below, by accompanying drawing and exemplary embodiment, the utility model is specifically described.Yet, should be appreciated that element, structure and the feature described in one embodiment also can be attached in other embodiment valuably in the situation that further not narrating.
As shown in Figure 1, double-deck triangle tension leg marine drilling platform is comprised of superstructure 1, upper strata column 2, upper strata buoyancy tank 3, lower floor's column 4, lower floor's buoyancy tank 5.Buoyancy tank 3 tops in upper strata are connected to superstructure 1 bottom by upper strata column 2, and lower floor's buoyancy tank 5 tops are connected to upper strata buoyancy tank 3 bottoms by lower floor's column 4.
As shown in Figure 2, upper strata column 2 and lower floor's column 4 are equilateral triangle distribution.By practice, find, compare with other scalene triangle layout, the structural arrangement of equilateral triangle makes platform can guarantee a good hydrodynamic performance and motion response performance downwards at each wave.
As shown in Figure 3, the vertical length of upper strata column 2 and lower floor's column 4 compares at 2:1 between 3:1.Through practice, find, when the vertical length of upper strata column 2 and lower floor's column 4 than at 2:1 between 3:1 time, can further make hydrodynamic performance, the exercise performance of platform especially can make to hang down to swing response amplitude to significantly improve.
Lower floor's buoyancy tank 5 is provided with ballast tank 13.Adopt this mode that ballast tank 13 is arranged on to platform bottommost, can make platform keep in-service darker drinking water state, not only realized the enough stabilities of the assurance of platform in severe marine environment, and guaranteed that platform rough water quality meets operating needs.Keep dark drinking water state can effectively increase the vertical length of platform with the added mass of the heaving of increase platform, thereby increase the natural period of heaving, avoid period of a wave scope, avoid that resonance occurs linear, alleviated the fatigue of standpipe.
Lower floor's buoyancy tank 5 is connected to the pile foundation in seabed by tension force muscle tendon 12.Every tension leg is comprised of 1～4 tension force muscle tendon 12, and tension leg upper end is fixed on platform body, and lower end is connected with seabed pedestal template, or is directly connected to pile foundation top.Seafloor foundation is fixed into position by platform, mainly contains two kinds of forms of pile foundation or suction type foundation.Center well is positioned at platform upper, can support dry tree system, and production riser, by center well, joins with production facilities above, joins below with sub-sea drilled wells.
Superstructure 1 can be provided with one or more in following equipment: drilling rig 6, life building 7, hoisting device 8, helicopter 9, hardstand 10, life boat 11, guarantee that operating personnel can also obtain a comfortable safe living environment when completing production operation.
Should be understood that; although the utility model is described by above-described embodiment; yet the utility model can also have other numerous embodiments; do not departing under the prerequisite of the utility model spirit and scope; those of ordinary skill in the art obviously can make various corresponding changes and distortion to the utility model, but these changes and distortion all should belong in the scope that the utility model claims and equivalent thereof protect.
Claims (3)
1. double-deck triangle tension leg marine drilling platform is comprised of superstructure, upper strata column, upper strata buoyancy tank, lower floor's column, lower floor's buoyancy tank, buoyancy tank top, upper strata is connected to superstructure bottom by upper strata column, lower floor's buoyancy tank top is connected to buoyancy tank bottom, upper strata by lower floor's column, it is characterized in that: upper strata column and lower floor's column are equilateral triangle and distribute, and the vertical length of upper strata column and lower floor's column compares at 2:1 between 3:1.
2. double-deck triangle tension leg marine drilling platform according to claim 1, is characterized in that: lower floor's buoyancy tank is provided with ballast tank; Lower floor's buoyancy tank is connected to the pile foundation in seabed by tension force muscle tendon.
3. double-deck triangle tension leg marine drilling platform according to claim 1, is characterized in that, superstructure can be provided with one or more in following equipment: drilling rig, life building, hoisting device, helicopter, hardstand, life boat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299195.XU CN203889018U (en) | 2014-06-07 | 2014-06-07 | Marine drilling platform with two layers of triangular tension legs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299195.XU CN203889018U (en) | 2014-06-07 | 2014-06-07 | Marine drilling platform with two layers of triangular tension legs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203889018U true CN203889018U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420299195.XU Expired - Fee Related CN203889018U (en) | 2014-06-07 | 2014-06-07 | Marine drilling platform with two layers of triangular tension legs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203889018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111891306A (en) * | 2020-07-31 | 2020-11-06 | 深圳埃吉尔海洋科技有限公司 | Modular space truss structure tension leg type offshore floating platform |
| CN113911288A (en) * | 2021-11-12 | 2022-01-11 | 中交第三航务工程局有限公司 | Method for monitoring operation period of floating type fan TLP platform |
-
2014
- 2014-06-07 CN CN201420299195.XU patent/CN203889018U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111891306A (en) * | 2020-07-31 | 2020-11-06 | 深圳埃吉尔海洋科技有限公司 | Modular space truss structure tension leg type offshore floating platform |
| CN111891306B (en) * | 2020-07-31 | 2021-04-06 | 深圳埃吉尔海洋科技有限公司 | Modular space truss structure tension leg type offshore floating platform |
| CN113911288A (en) * | 2021-11-12 | 2022-01-11 | 中交第三航务工程局有限公司 | Method for monitoring operation period of floating type fan TLP platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150607 |
|
| EXPY | Termination of patent right or utility model |