CN204587251U - The semi-submersible drilling unit of a kind of polar region ice formation operation - Google Patents
The semi-submersible drilling unit of a kind of polar region ice formation operation Download PDFInfo
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- CN204587251U CN204587251U CN201520269156.XU CN201520269156U CN204587251U CN 204587251 U CN204587251 U CN 204587251U CN 201520269156 U CN201520269156 U CN 201520269156U CN 204587251 U CN204587251 U CN 204587251U
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Abstract
The utility model discloses the semi-submersible drilling unit of a kind of polar region ice formation operation, comprise lower buoyancy aid (1), and by the upper hull (4) of column (3) support top; Described column (3) is supported on described lower buoyancy aid (1).Described lower buoyancy aid (1) is two parallel, outlines is the part of cuboid, and connected by two triatic stays (2) between two parts, described triatic stay (2) is positioned at towage underwater (5) rice; The column 3 of described lower buoyancy aid (1) is 4 ~ 6; Column (3) described in every root sets up anti-ice cone within the scope of supreme 5 meters of (2) rice under operation waterline place; Described every root post adopts forward truncated rectangular pyramids pattern between (2) rice to lower buoyancy aid at storm in water line place; Bottom, bank, described upper hull moon pool district arranges the ice resistant structure (7) of inclination.The utility model can carry out the iceproof semi-submersible drilling unit of oil exploration operation in marine site, ice formation, the arctic, can the impact of actv. opposing Chukchi Sea floating ice.
Description
Technical field
The present invention relates to drilling platform, more particularly, relate to the drilling platform being adapted at the operation of ice formation, polar region.
Background technology
In recent years, global climate continues to warm, and the ice sheet that the Arctic Ocean covers starts to melt, and the Arctic Ocean has become the focus marine site of petrol resources exploitation most prospect.Oil gas at present in the arctic can in recovery activity, and semi-submersible drilling unit is that the vigorous extra large frock of each oily companies needs is one of standby.
Chukchi Sea weather severe cold, floating ice is many, ice sheet is thick, semi-submersible drilling unit is when the operation of ice formation, polar region, the floating ice from any direction that often can be subject to clashes into, concerning the semi-submersible drilling unit (as Fig. 1) of routine, under its upright column and bank, moon pool district, drilling facilities is often directly extruded by floating ice, in this case, ice can produce squeeze and destroy, under column and bank, moon pool district, drilling facilities produces huge impulsive force, drilling facilities under column and bank, moon pool district is caused larger harm by extruding result, the operation life-span of final reduction platform.
In order to meet the needs carrying out oil exploration operation in marine site, ice formation, the arctic, we need a kind of novel, can the semi-submersible drilling unit that impacts of actv. opposing floating ice.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of iceproof semi-submersible drilling unit that can carry out oil exploration operation in marine site, ice formation, the arctic, this drilling platform can the impact of actv. opposing Chukchi Sea floating ice.
In order to achieve the above object, the invention provides the semi-submersible drilling unit of a kind of polar region ice formation operation, comprise lower buoyancy aid, and by the upper hull of column support top; Described upright supports is on described lower buoyancy aid.The present invention improves and is, described lower buoyancy aid is two parallel, outlines is the part of cuboid, and connected by two triatic stays between two parts, described triatic stay is positioned at towage underwater rice; The column of described lower buoyancy aid is 4 ~ 6; Column described in every root sets up anti-ice cone within the scope of 2 meters supreme 5 meters under operation waterline place; Described every root post adopts forward truncated rectangular pyramids pattern between 2 meters to lower buoyancy aid at storm in water line place; Bottom, bank, described upper hull moon pool district arranges the ice resistant structure of inclination.
The present invention is owing to taking above technical scheme, and it has the following advantages:
1) platform of the present invention can carry out oil exploration operation in marine site, ice formation, the arctic, and the impact of energy actv. opposing floating ice.
2) plateau levels strut of the present invention arranges between two lower buoyancy aids, and its position can guarantee that platform avoids floating ice when ice formation towage, thus avoids the impact of floating ice to pole structure; Meanwhile, while the horizontal force of the triatic stay moved down under actv. opposing between buoyancy aid and longitudinal moment of torsion, also can provide extra displacement of volume, thus improve the load-bearing capacity of platform.
3) platform of the present invention sets up anti-ice cone within the scope of 2 meters supreme 5 meters under every root vertical column operation waterline place; in water line place, approximate forward truncated rectangular pyramids pattern is adopted between 2 meters to lower buoyancy aid at storm; the floating ice that collision can be made to come on above-mentioned anti-ice cone and terrace with edge inclined-plane bends destruction; guarantee platform column direct extruding from floating ice under different work operating mode; effectively reduce the impulsive force of floating ice column; avoid column to produce to damage, platform column is effectively protected under different work operating mode.
4) platform of the present invention arranges the ice resistant structure of inclination in bottom, bank, upper hull moon pool district, to protect the drill outfit of well head, avoids suffering that floating ice impacts.
Accompanying drawing explanation
The version schematic diagram of Fig. 1 prior art semisubmersible platform.
The lateral plan of Fig. 2 platform of the present invention.
The bow view of Fig. 3 platform of the present invention.
The column lower end truncated rectangular pyramids outside drawing of Fig. 4 platform of the present invention.
Number in the figure: the ice resistant structure of forward truncated rectangular pyramids pattern (storm is from water line place) the 7-upper hull moon pool district bank lower tilt of anti-ice cone (operation waterline place), 6-column lower end on buoyancy aid, 2-strut, 3-column, 4-upper hull, 5-column under 1-.
Detailed description of the invention
The present invention takes following technical scheme, a kind of iceproof semi-submersible drilling unit that can carry out oil and gas development operation in marine site, ice formation, the arctic, and described semi-submersible drilling unit comprises the lower buoyancy aid of two approximate cuboids; Arrange two triatic stays between described two lower buoyancy aids, its position is positioned at towage underwater 5 meters of, can guarantee that platform avoids floating ice when ice formation towage, thus to avoid when towage floating ice to the impact of pole structure; Described each lower buoyancy aid is respectively provided to few two vertical columns, described every root post sets up anti-ice cone within the scope of 2 meters supreme 5 meters under operation waterline place; Described every root post adopts approximate forward truncated rectangular pyramids pattern at storm in water line place between 2 meters to lower buoyancy aid, described above-mentioned anti-ice cone and terrace with edge inclined-plane can avoid platform column to be subject to direct impact and the extruding of floating ice when ice formation operation, produce large ice load and cause column to suffer damage; The upper end of described column is supported with upper hull, and described upper hull upper end bow arranges personnel and to live place, for drill outfit under avoiding bank, moon pool district suffers that floating ice impacts, arranges the ice resistant structure of inclination in bottom, bank, described upper hull moon pool district.
As shown in figs. 2 to 4, platform of the present invention comprises the lower buoyancy aid 1 of two parallel, approximate cuboids; Usually special liquid tank and the pump room such as drilling well water tank, salt water tank, base oil cabin of the ballast chamber of platform service, fuel oil tank and drilling well is set in lower buoyancy aid 1, and propelling unit Cang Deng machinery space.The radical function of lower buoyancy aid is for platform provides enough displacement, consists of an integral structure with column and upper hull, improves the strength and stiffness of platform and integrally.
Between two lower buoyancy aids 1, two triatic stays 2 are set, triatic stay 2 cross section is Long Circle, in strut, vertical watertight bulkhead is set along stay length direction, be two independently watertight cabins by strut interior separation, its position is positioned at towage underwater 5 meters of, can guarantee that platform avoids floating ice when ice formation towage, thus avoid when towage floating ice to the impact of pole structure.The effect of triatic stay is can horizontal force between the lower buoyancy aid of actv. opposing and longitudinal moment of torsion, also can provide extra displacement of volume simultaneously, thus improve the load-bearing capacity of platform.
In each of the lower buoyancy aid 1 is respectively provided to few two vertical columns 3, its horizontal section is approximating square, has rounded transitional in the corner of column.Every root post 3 sets up anti-ice cone 5 within the scope of 2 meters supreme 5 meters under operation waterline place, anti-ice cone 5 for swing to cone, cone angle scope between 35 ° to 50 °, horizontal section is that top circle transits to bottom band fillet square gradually; Every root post 3 adopts approximate forward truncated rectangular pyramids pattern 6 at storm in water line place between 2 meters to lower buoyancy aid, its corner angle (marking C in Fig. 4) scope is between 10 ° to 20 °, above-mentioned anti-ice cone 5 and terrace with edge 6 inclined-plane can avoid platform column 4 to be subject to direct impact and the extruding of floating ice when ice formation operation, produce large ice load and cause column to suffer damage.The radical function of column supports the upper hull structure on top and the load of equipment and system, meanwhile, provides enough waterplane areas for ensureing the stability of platform.
The upper end of column 3 is supported with upper hull 4, and upper hull 4 global shape is the quadrangle of standard, is separated into many box-shaped enclosure spaces by three layers of platform and longitudinal and transverse bulkhead.Be provided with the moon pool perforate for drilling operation in the center of upper hull, the personnel that arrange in upper hull 4 upper end live place and drilling facilities.For drilling facilities under avoiding bank, moon pool district suffers that floating ice impacts, the ice resistant structure 7 of inclination is set in bottom, bank, described upper hull moon pool district.Ice resistant structure 7 is in swinging to truncated rectangular pyramids funnel-form, and the peripheral double-wall grillage for tilting, interior bone then can meet the needs of shaft mouth operation.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (1)
1. a semi-submersible drilling unit for ice formation, polar region operation, comprises lower buoyancy aid (1), and by the upper hull (4) of column (3) support top; Described column (3) is supported on described lower buoyancy aid (1); It is characterized in that;
Described lower buoyancy aid (1) is two parallel, outlines is the part of cuboid, and connected by two triatic stays (2) between two parts, described triatic stay (2) is positioned at towage underwater (5) rice;
The column (3) of described lower buoyancy aid (1) is 4 ~ 6; Column (3) described in every root sets up anti-ice cone within the scope of supreme 5 meters of (2) rice under operation waterline place; Described every root post adopts forward truncated rectangular pyramids pattern between (2) rice to lower buoyancy aid at storm in water line place;
Bottom, bank, described upper hull moon pool district arranges the ice resistant structure (7) of inclination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269156.XU CN204587251U (en) | 2015-04-28 | 2015-04-28 | The semi-submersible drilling unit of a kind of polar region ice formation operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269156.XU CN204587251U (en) | 2015-04-28 | 2015-04-28 | The semi-submersible drilling unit of a kind of polar region ice formation operation |
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| Publication Number | Publication Date |
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| CN204587251U true CN204587251U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520269156.XU Active CN204587251U (en) | 2015-04-28 | 2015-04-28 | The semi-submersible drilling unit of a kind of polar region ice formation operation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105947128A (en) * | 2016-05-04 | 2016-09-21 | 中山大学 | Modularized floating type multifunctional ocean platform |
| CN110040223A (en) * | 2018-01-15 | 2019-07-23 | 中集海洋工程研究院有限公司 | Iceproof semisubmersible platform |
| RU2713690C1 (en) * | 2019-04-03 | 2020-02-06 | Российская Федерация, в лице которой выступает Министерство промышленности и торговли Российской Федерации | Drill ship for operation in arctic conditions |
| CN111846129A (en) * | 2020-07-27 | 2020-10-30 | 深洋海工技术(深圳)有限公司 | Novel polar region ice zone semi-submersible type drilling platform |
-
2015
- 2015-04-28 CN CN201520269156.XU patent/CN204587251U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105947128A (en) * | 2016-05-04 | 2016-09-21 | 中山大学 | Modularized floating type multifunctional ocean platform |
| CN110040223A (en) * | 2018-01-15 | 2019-07-23 | 中集海洋工程研究院有限公司 | Iceproof semisubmersible platform |
| RU2713690C1 (en) * | 2019-04-03 | 2020-02-06 | Российская Федерация, в лице которой выступает Министерство промышленности и торговли Российской Федерации | Drill ship for operation in arctic conditions |
| CN111846129A (en) * | 2020-07-27 | 2020-10-30 | 深洋海工技术(深圳)有限公司 | Novel polar region ice zone semi-submersible type drilling platform |
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