CN104295242B - A kind of tension leg type drilling platforms monolayer rotation-sliding churn base - Google Patents
A kind of tension leg type drilling platforms monolayer rotation-sliding churn base Download PDFInfo
- Publication number
- CN104295242B CN104295242B CN201410607807.1A CN201410607807A CN104295242B CN 104295242 B CN104295242 B CN 104295242B CN 201410607807 A CN201410607807 A CN 201410607807A CN 104295242 B CN104295242 B CN 104295242B
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- China
- Prior art keywords
- base
- tension leg
- sliding
- bearing
- platform
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- Expired - Fee Related
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- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 239000002356 single layer Substances 0.000 title claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/02—Supports for the drilling machine, e.g. derricks or masts specially adapted for underwater drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of tension leg type drilling platforms monolayer rotation-sliding churn base, belongs to field of ocean engineering.This drilling well base is optimized structure, simplify drillng operation method, do not need additionally to arrange proprietary drilling equipment to carry out drilling well and well workover again, this rig substructure not only has the features such as simple in construction, volume be little, lightweight, bearing capacity greatly, easily installs maintenance, safe and reliable, but also has the ability adapting to complicated natural climate and severe sea condition.This achievement, by providing strong technical support for the design of tension leg platform (TLP) in China's oil exploitation with manufacturing technology, promotes the great-leap-forward development of Novel platform in China's oil-gas field development.This drilling well base overcomes traditional tension leg platform (TLP) and vertically moves the shortcoming of well-digging, and effectively reduces tension leg platform (TLP) cost in deep water marginal oil field.
Description
Technical field
The present invention relates to a kind of tension leg type drilling platforms monolayer rotation-sliding churn base, it belongs to field of ocean engineering.
Background technology
The general all rectangular or triangle of tension leg platform (TLP) main body, platform upper is positioned at more than the water surface, connects lower body by 4 or 3 root posts, and column is cylindrical structural, and Main Function is available to the rigidity of structure that platform body is necessary.The buoyancy of platform is provided by being positioned at undersurface heavy body buoyancy tank, and buoyancy tank head and the tail connect with each column, form circulus.Tension leg is made up of 1～4 tension tendon, and upper end is fixed on platform body, and lower end is connected with seabed pedestal template, or is connected directly between pile foundation top.Sometimes in order to increase the lateral rigidity of plateform system, oblique line mooring rope system also can be installed, as the auxiliary of vertical tension lower limb system.Platform is fixed into position by seafloor foundation, mainly has pile foundation or 2 kinds of forms of suction type foundation.Center well is positioned at platform upper, it is possible to support dry tree system, production riser by aboveground connect with production equipment, lower connect with sub-sea drilled wells.The drilling module of platform includes the part compositions such as derrick, rig floor and lower mobile base.Derrick is for being uprightly set with Jackup mast.Lower mobile base is gantry type frame structure, and 4 pedestals are seated on the T-shaped slide rail of platform top layer, promotes by two crawl devices driven by hydraulic jack, can along the direction sliding of platform north south.9 pedestals of rig floor are seated on the box-shaped slide rail of lower mobile base, promote by two crawl devices of being driven by hydraulic jack, can along platform east west direction to sliding.In the well head battle array being arranged below 3X3 or 4X4 of rig, complete well-digging operation by vertical slip.
In the face of the severe sea condition that tension leg type platform faces when deep water sea area operation, traditional Vertical slippage formula support system exposes a series of shortcoming: must have certain elevation between two groups of vertical slip rings, so just improve the center of gravity that rig is overall, under the environmental condition that the wind was high and the waves were pressing of the South Sea, increase the danger that platform topples, reduce the precision of well-digging operation simultaneously；Relevant drilling well support module must be equipped with above deck and carry out putting equipment, add deathtrap and the wind area of platform, and Platform Deck size is proposed requirements at the higher level..
Summary of the invention
For solving problems of the prior art, the present invention provides a kind of tension leg type drilling platforms monolayer rotation-sliding churn base, to solve the technical barriers such as center of gravity height when deepwater digs a well operation, Heavy Weight, volume be big.
The technical scheme is that a kind of tension leg type drilling platforms monolayer rotation-sliding churn base, including module drilling machine deck, base bearing supports boxing and is connected in the middle of module drilling machine deck, the bottom that upper spherical bearing is welded on base bearing pushing out ring, lower peripheral surface bearing is welded on the top of base bearing lower support ring, the outside of main shaft lower support ring is provided with annular brace slideway, between module drilling machine deck and annular brace slideway, is evenly arranged six supports sliding shoe.
Described upper spherical bearing and lower peripheral surface bearing surface built-up welding 625 alloy.
The invention has the beneficial effects as follows: this drilling well base is optimized structure, simplify drillng operation method, do not need additionally to arrange proprietary drilling equipment to carry out drilling well and well workover again, this rig substructure not only has the features such as simple in construction, volume be little, lightweight, bearing capacity greatly, easily installs maintenance, safe and reliable, but also has the ability adapting to complicated natural climate and severe sea condition.This drilling well base, by providing strong technical support for the design of tension leg platform (TLP) in China's oil exploitation with manufacturing technology, promotes the great-leap-forward development of Novel platform in China's oil-gas field development.This drilling well base overcomes traditional tension leg platform (TLP) and vertically moves the shortcoming of well-digging, and effectively reduces tension leg platform (TLP) cost in deep water marginal oil field.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of tension leg type drilling platforms monolayer rotation-sliding churn base.
In figure: 1, pushing out ring on base bearing, 2, base bearing lower support ring, 3, upper spherical bearing, 4, lower peripheral surface bearing, 5, annular brace slideway, 6, support sliding shoe, 7, module drilling machine deck.
Detailed description of the invention
Fig. 1 illustrates the structure of a kind of tension force leg drill platform monolayer rotation-sliding churn base, it is to be made up of a circular steel structure and a middle bearing arrangement, wherein module drilling machine is positioned at above module drilling machine deck 7, on base bearing, a pushing out ring 1 is welded in the middle of module drilling machine deck 7, the bottom that upper spherical bearing 3 is welded on base bearing pushing out ring 1, lower peripheral surface bearing 4 is welded on the top of base bearing lower support ring 2, surface overlaying 625 alloy of upper spherical bearing 3 and lower peripheral surface bearing 4, a ring shape supporting skid rail 5 is arranged in the outside of base bearing lower support ring 2, between module drilling machine deck 7 and annular brace slideway 5, it is evenly arranged six supports sliding shoe 6.Module drilling machine deck 7 rotation-sliding, makes the module drilling machine on top realize rotating well-digging operation.
Claims (2)
1. a tension leg type drilling platforms monolayer rotation-sliding churn base, including module drilling machine deck (7), it is characterized in that: on base bearing, a pushing out ring (1) is welded in the middle of module drilling machine deck (7), the bottom that upper spherical bearing (3) is welded on base bearing pushing out ring (1), lower peripheral surface bearing (4) is welded on the top of base bearing lower support ring (2), the outside of base bearing lower support ring (2) is provided with annular brace slideway (5), between module drilling machine deck (7) and annular brace slideway (5), is evenly arranged six supports sliding shoe (6).
2. a kind of tension leg type drilling platforms monolayer rotation-sliding churn base according to claim 1, it is characterised in that: described upper spherical bearing (3) and lower peripheral surface bearing (4) surface overlaying 625 alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607807.1A CN104295242B (en) | 2014-11-03 | 2014-11-03 | A kind of tension leg type drilling platforms monolayer rotation-sliding churn base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607807.1A CN104295242B (en) | 2014-11-03 | 2014-11-03 | A kind of tension leg type drilling platforms monolayer rotation-sliding churn base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295242A CN104295242A (en) | 2015-01-21 |
| CN104295242B true CN104295242B (en) | 2016-06-29 |
Family
ID=52315159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410607807.1A Expired - Fee Related CN104295242B (en) | 2014-11-03 | 2014-11-03 | A kind of tension leg type drilling platforms monolayer rotation-sliding churn base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295242B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253525A (en) * | 1978-07-31 | 1981-03-03 | Schlumberger Technology Corporation | Retainer valve system |
| US5533574A (en) * | 1993-12-20 | 1996-07-09 | Shell Oil Company | Dual concentric string high pressure riser |
| CN1780962A (en) * | 2003-02-28 | 2006-05-31 | 默代克国际有限公司 | Method of installation of a tension leg platform |
| CN101044293A (en) * | 2004-05-03 | 2007-09-26 | 德利马公司 | Modular drill system requiring limited field assembly |
| CN103189592A (en) * | 2010-10-27 | 2013-07-03 | 国际壳牌研究有限公司 | Downhole multiple well |
| CN204252842U (en) * | 2014-11-03 | 2015-04-08 | 大连迪施船机有限公司 | A kind of tension leg type offshore boring island individual layer rotation-sliding churn base |
-
2014
- 2014-11-03 CN CN201410607807.1A patent/CN104295242B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4253525A (en) * | 1978-07-31 | 1981-03-03 | Schlumberger Technology Corporation | Retainer valve system |
| US5533574A (en) * | 1993-12-20 | 1996-07-09 | Shell Oil Company | Dual concentric string high pressure riser |
| CN1780962A (en) * | 2003-02-28 | 2006-05-31 | 默代克国际有限公司 | Method of installation of a tension leg platform |
| CN101044293A (en) * | 2004-05-03 | 2007-09-26 | 德利马公司 | Modular drill system requiring limited field assembly |
| CN103189592A (en) * | 2010-10-27 | 2013-07-03 | 国际壳牌研究有限公司 | Downhole multiple well |
| CN204252842U (en) * | 2014-11-03 | 2015-04-08 | 大连迪施船机有限公司 | A kind of tension leg type offshore boring island individual layer rotation-sliding churn base |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295242A (en) | 2015-01-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20161103 |