CN102514692B - Ultradeep sea oil-gas field engineering development system - Google Patents
Ultradeep sea oil-gas field engineering development system Download PDFInfo
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- CN102514692B CN102514692B CN201110441883.6A CN201110441883A CN102514692B CN 102514692 B CN102514692 B CN 102514692B CN 201110441883 A CN201110441883 A CN 201110441883A CN 102514692 B CN102514692 B CN 102514692B
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- 238000007667 floating Methods 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
- E21B17/015—Non-vertical risers, e.g. articulated or catenary-type
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an ultradeep sea oil-gas field engineering development system, which comprises a sea floating production device, a first-stage riser supporting photon, first-stage rigid risers, a second-stage riser supporting photon, second-stage rigid risers, underwater oil extraction equipment, an upper flexible jumper tube, a tension mooring device and a seabed wellhead device, wherein the tension mooring device comprises a tension cable and a pile foundation. Submarine oil extraction equipment is arranged on the second-stage riser supporting photon positioned 200-350 meters below the sea surface, and because of pressure reduction and temperature rise, design requirements and technical difficulty for the oil extraction equipment are reduced, and construction, installation and maintenance cost is greatly reduced. The two stages of riser supporting photons are adopted to bear the loads of the rigid risers in water stage by stage, the oversize of a single riser supporting photon is avoided, the total weight supported by the sea floating production device is effectively reduced, and design requirements on the sea floating production device are reduced.
Description
Technical field
The present invention relates to a kind of marine oil gas field development technique, particularly a kind of ultradeep sea oil-gas field engineering development system.
Background technology
Whole world ocean depth 3000～6000m has occupied the overwhelming majority of ocean area, reaches 73.83%, therefore, is important goals that contemporary new and high technology is pursued for the exploitation of utmost point deep water sea area subsea resource.
At present, rely on traditional marine engineering equipment and ocean engineering technology, the limit depth of water of mankind's marine oil and gas development of resources is between 3000～3500m, and the cost of development dropping into is huge.In addition,, due to the sea conditions of utmost point deep water sea area severe (as heavy rain, hurricane) etc., normal oil-gas mining operating risk is increased severely.
Based on the existence of the problems referred to above, feasibility, safety and the economic serviceability of (3000～6000m) operation under profound water marine environment of traditional marine oil and gas engineer equipment and marine oil and gas engineering technology all cannot meet the demands.
Summary of the invention
The problems referred to above that exist under profound water marine environment for solving existing marine oil and gas engineer equipment and technology, the present invention will design a kind of ultradeep sea oil-gas field engineering development system, this system is insensitive to ocean depth, can greatly promote the operating water depth of marine oil gas field exploitation; Can tackle the safety challenge that in profound water marine environment, severe sea condition brings; Can tackle the excessive challenge of production riser system weight in utmost point deep water sea area water; Can tackle the too high challenge of designing requirement in profound water marine environment of water surface floating type process units; Can tackle under profound water marine environment the high voltage bearing challenge of oil production equipment.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of ultradeep sea oil-gas field engineering development system, comprises that sea Floating Production device, one-level standpipe support oil production equipment, the flexible crossover tube in top, tension force mooring gear and subsea wellhead installations in floating drum, one-level rigid riser, secondary standpipe support floating drum, secondary rigid riser, water; Described tension force mooring gear comprises tension cables and pile foundation, and described pile foundation is fixed on sea bed;
Described one-level standpipe supports floating drum and is positioned at H/2 place under sea, in the pile foundation by tension cables mooring on sea bed, makes one-level standpipe support floating drum and rests on reposefully assigned address under water; Described H is the marine site degree of depth of operation;
The top of described one-level rigid riser connects one-level standpipe support floating drum, its bottom is connected with subsea wellhead installations;
Described secondary standpipe supports floating drum and is positioned at H1 place under sea, and described secondary rigid riser top connects secondary standpipe support floating drum, bottom is connected with the top that one-level standpipe supports floating drum; Described H1 is 200 to the 350m depth of water;
In described water, oil production equipment is arranged on secondary standpipe support floating drum;
The lower end of the described flexible crossover tube in top and the Floating Production device that pipeline transferring device is connected, upper end is connected to sea.
In one-level rigid riser of the present invention and secondary rigid riser, annular buoyant device is installed.
When the present invention works, the hydrocarbon resources in seabed supports oil production equipment, the flexible crossover tube in top in floating drum, secondary rigid riser, secondary standpipe support floating drum, water by subsea wellhead installations, one-level rigid riser, one-level standpipe, finally arrive sea Floating Production device, thereby carry out the developmental work of marine oil and gas resource.
Compared with prior art, the present invention has following beneficial effect:
1, the super deep-sea more than 1500 meters, oil production equipment is mostly arranged on seabed, requires to have high pressure resistant, low temperature resistant requirement at the oil production equipment in seabed, so high to technical requirements, cost is high; The present invention is arranged on the oil production equipment in seabed apart from the secondary standpipe at H1 place under sea and supports on floating drum, due to pressure decreased and temperature rising, thereby reduce designing requirement and technical risk to oil production equipment, and then greatly reduced construction, I&M cost.
2, the present invention adopts the classification of two-stage water neutral tube support floating drum to bear the load of rigid riser in water, avoid single water neutral tube to support the oversize of floating drum, effectively reduce the total weight that sea Floating Production device supports simultaneously, reduce the designing requirement of sea Floating Production device, greatly reduced cost of investment.
3, one-level standpipe support floating drum of the present invention, by tension cables mooring on sea bed, has good stability.
4, secondary rigid riser of the present invention has the double action of transmission material and stable secondary standpipe support floating drum, simplifies and builds and mounting process.
5, apparatus of the present invention are positioned at H1 place under sea, connect sea Floating Production device by flexible crossover tube, have reduced the impact that Layer Near The Sea Surface place load and sea Floating Production device move on apparatus of the present invention, and the fatigue that it is caused this is insensitive.
6, the present invention is in the time that typhoon or hurricane are attacked, the flexible crossover tube in top can support floating drum with secondary standpipe in water and disconnect rapidly, thereby form the off-state of sea and marine equipment, and then water surface floating type process units moves to without typhoon region, there is the function that typhoon protection or hurricane are attacked.
If 7 operating water depth H are when very big (being generally greater than 6000m), due to the impact of the huge depth of water of utmost point deep water sea area, low temperature and high pressure, the weight of rigid riser can sharply increase under water, one-level standpipe supports floating drum and secondary standpipe supports the load that floating drum is the huge rigid riser under water of support, it is very large that the size of floating drum can become, and builds with cost of installation and sharply increase.For this reason, the present invention installs annular buoyant device in rigid riser under water, reduces the load-bearing of rigid riser in water, thereby reduce the required bottom standpipe load of bearing of floating drum, reduce size and the weight of floating drum, thereby simplify build process and the mounting process difficulty of floating drum, reduce costs.
Brief description of the drawings
4, the total accompanying drawing of the present invention, wherein:
Fig. 1 is integral structure schematic diagram of the present invention.
Fig. 2 is the birds-eye view that one-level standpipe of the present invention supports floating drum.
Fig. 3 is the birds-eye view that secondary standpipe of the present invention supports floating drum.
Fig. 4 is that in water of the present invention, rigid riser is installed the integral structure schematic diagram after annular buoyant device.
In figure: 2, truss structure, 5, annular buoyant device, 7, tension cables, 8, pile foundation, 9, well head head, 10, one-level standpipe supports floating drum, 11, central rods structure, 12, cantilever floating drum, 15, one-level rigid riser, 16, sea, 17, sea bed, 19, oil production equipment, 20, secondary standpipe supports floating drum, and 21, pipeline transferring device, 25, secondary rigid riser, 27, the flexible crossover tube in top, 28, subsea wellhead installations, 30, sea Floating Production device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figure 1, a kind of super dark marine oil and gas Engineering Develop System for MSC, mainly comprises that sea Floating Production device 30, one-level standpipe support oil production equipment 19, the flexible crossover tube 27 in top, tension force mooring gear and subsea wellhead installations 28 in floating drum 10, one-level rigid riser 15, secondary standpipe support floating drum 20, secondary rigid riser 25, water.
For ease of explanation the specific embodiment of the present invention, the marine site degree of depth of supposing operation is H (H is greater than 3000m).
Described one-level standpipe supports floating drum 10 and is positioned at H/2 place under sea, is fixed in the pile foundation 8 that is positioned at sea bed 17 by tension cables 7, is positioned reposefully assigned address H/2 place under water to make one-level standpipe support floating drum 10.
Three well head heads 9 are arranged at described one-level standpipe support floating drum 10 tops, and (well head head 9 bottoms are the passage that runs through one-level standpipe support floating drum 10, in figure, do not show), well head head 9 is used for guiding one-level rigid riser 15 supported floating drum 10 and be connected with the cellar connection 28 in seabed by one-level standpipe
The top of described one-level rigid riser 15 connects one-level standpipe and supports floating drum 10, and bottom is connected with subsea wellhead installations 28, thereby the load of one-level rigid riser 15 supports floating drum 10 shareds by sea bed 17 and one-level standpipe.
Described secondary standpipe supports floating drum 20 and is positioned at H1 place under sea, makes secondary standpipe support floating drum 20 and affected by wind, wave, the stream at Layer Near The Sea Surface place, has good performance in place.
Described secondary rigid riser 25 tops connect secondary standpipe and support floating drum 20, and bottom is connected with the top that one-level standpipe supports floating drum 10.So, the load of secondary rigid riser 25 mainly supports floating drum 20 by secondary standpipe and bears, and the floating drum of one-level standpipe support simultaneously 10 is that secondary rigid riser 25 and secondary standpipe support the basic platform that floating drum 20 provides support.
As shown in Figure 3, oil production equipment 19 in water (being mainly christmas tree and relevant oil line device) is arranged on secondary standpipe and supports on floating drum 20, in water, the oil line device of oil production equipment 19 is concentrated tandem (for diagram is clear, oil line is not shown in the drawings) to pipeline transferring device 21.So, the oil production equipment 19 being originally arranged on sea bed 17 is arranged on the secondary standpipe support floating drum 20 that is positioned at H1 place under sea, has reduced the performance requriements to oil production equipment 19 at utmost point deep water sea area, installation, maintenance is convenient, has greatly reduced cost.
The lower end of the described flexible crossover tube 27 in top is connected with the pipeline transferring device 21 that secondary standpipe supports floating drum 20 tops, and the other end connects the Floating Production device 30 that is positioned at sea 16.
Thus, the hydrocarbon resources in seabed supports the flexible crossover tube 27 of oil production equipment 19 and top in floating drum 10, secondary rigid riser 25, secondary standpipe support floating drum 20, water by subsea wellhead installations 28, one-level rigid riser 15, one-level standpipe, finally arrive sea Floating Production device 30, thereby carry out the developmental work of marine oil and gas resource.
Especially, one-level standpipe support floating drum 10 as shown in Figure 2 adopts the unitized construction form of central rods structure 11 and three square-section floating drums 12, three square-section floating drums 12 are positioned at central rods structure 11 edges, and angle is in the plane 120 °, forms radial.The end of square-section floating drum 12 adopts the truss structure 2 of neutral buoyancy, make one-level standpipe support floating drum 10 meets the in the situation that of designing buoyancy in water, reduce the weight that one-level standpipe supports floating drum 10, thereby simplify the build process difficulty of one-level standpipe support floating drum 10, reduce production costs.
As shown in Figure 4, if (be generally greater than 6000m) when operating water depth H is very big, annular buoyant device 5 can be installed in one-level rigid riser 15 and secondary rigid riser 25, reduce one-level rigid riser 15 and the weight of secondary rigid riser 25 in water, thereby reduce, one-level standpipe supports floating drum 10 and secondary standpipe support floating drum 20 is born one-level rigid riser 15 and secondary rigid riser 25 load in ground water, support size and the weight of floating drum 10 and secondary standpipe support floating drum 20 to reduce one-level standpipe, thereby simplify build process and the mounting process difficulty of one-level standpipe support floating drum 10 and secondary standpipe support floating drum 20, reduce costs.
When run into the emergency situations such as exceedingly odious sea situation (as typhoon or hurricane are attacked) in the operation of utmost point deep water sea area, the flexible crossover tube 27 in top can disconnect rapidly with the pipeline transferring device 21 that secondary standpipe supports on floating drum 20, thereby form the off-state of sea and marine equipment, and then the rapid hedging of sea Floating Production device 30, with personal casualty and the property damage avoiding developing oil fields and causing owing to meeting with emergency situation.
Claims (2)
1. a ultradeep sea oil-gas field engineering development system, comprises oil production equipment (19) in sea Floating Production device (30), water, tension force mooring gear and subsea wellhead installations (28); Described tension force mooring gear comprises tension cables (7) and pile foundation (8), and described pile foundation (8) is fixed on sea bed (17);
It is characterized in that: described system also comprises that one-level standpipe supports floating drum (10), one-level rigid riser (15), secondary standpipe supports the flexible crossover tube in floating drum (20), secondary rigid riser (25) and top (27);
Described one-level standpipe supports floating drum (10) and is positioned at H/2 place under sea (16), and the pile foundation (8) by tension cables (7) mooring on sea bed (17) is upper, makes one-level standpipe support floating drum (10) and rests on reposefully assigned address under water; Described H is the marine site degree of depth of operation;
The top of described one-level rigid riser (15) connects one-level standpipe support floating drum (10), its bottom is connected with subsea wellhead installations (28);
Described secondary standpipe supports floating drum (20) and is positioned at H1 place under sea (16), and described secondary rigid riser (25) top connects secondary standpipe support floating drum (20), bottom is connected with the top that one-level standpipe supports floating drum (10); Described H1 is 200 to the 350m depth of water;
Oil production equipment in described water (19) is arranged on secondary standpipe and supports on floating drum (20);
The lower end of the described flexible crossover tube in top (27) and the Floating Production device that pipeline transferring device (21) is connected, upper end is connected to sea (16).
2. a kind of ultradeep sea oil-gas field engineering development system according to claim 1, is characterized in that: the upper annular buoyant device (5) of installing of described one-level rigid riser (15) and secondary rigid riser (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110441883.6A CN102514692B (en) | 2011-12-24 | 2011-12-24 | Ultradeep sea oil-gas field engineering development system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110441883.6A CN102514692B (en) | 2011-12-24 | 2011-12-24 | Ultradeep sea oil-gas field engineering development system |
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| Publication Number | Publication Date |
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| CN102514692A CN102514692A (en) | 2012-06-27 |
| CN102514692B true CN102514692B (en) | 2014-06-25 |
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| CN201110441883.6A Active CN102514692B (en) | 2011-12-24 | 2011-12-24 | Ultradeep sea oil-gas field engineering development system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395476B (en) * | 2013-08-14 | 2015-08-12 | 大连理工大学 | The installation method of a kind of subduction floating drum in ultra-deep-water |
| CN105003232B (en) * | 2015-07-23 | 2018-01-30 | 大连理工大学 | A kind of ultra-deep sea marine oil and gas dry type production system and its installation evacuation method |
| CN105836055A (en) * | 2016-04-27 | 2016-08-10 | 天津大学 | Extraction, storage and transport system for underwater oil and gas resources in deep sea |
| CN106522896B (en) * | 2016-12-02 | 2019-01-11 | 大连理工大学 | Production support floating drum and its installation and recovery method under a kind of Double-layer water |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911688A (en) * | 1972-09-13 | 1975-10-14 | Coflexip | Pipe apparatus for the collection of petroleum from deep water wells |
| EP0277840A2 (en) * | 1987-02-05 | 1988-08-10 | Conoco Inc. | Modular near-surface completion system |
| US5676209A (en) * | 1995-11-20 | 1997-10-14 | Hydril Company | Deep water riser assembly |
| CN1217041A (en) * | 1996-03-12 | 1999-05-19 | 特杰·马格纳森 | Underwater installation and method for building same |
| US6082391A (en) * | 1997-09-12 | 2000-07-04 | Stolt Comex Seaway | Device for hybrid riser for the sub-sea transportation of petroleum products |
| US6688250B2 (en) * | 2001-08-06 | 2004-02-10 | Seahorse Equipment Corporation | Method and apparatus for reducing tension variations in mono-column TLP systems |
| CN2727043Y (en) * | 2004-01-20 | 2005-09-21 | 天津市海王星海上工程技术有限公司 | Deep water tension leg type single point mooring device |
| CN202389573U (en) * | 2011-12-24 | 2012-08-22 | 大连理工大学 | Oil and gas field engineering development system of extreme deepwater ocean |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7422394B2 (en) * | 2006-05-15 | 2008-09-09 | Modec International, Inc. | Tendon for tension leg platform |
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2011
- 2011-12-24 CN CN201110441883.6A patent/CN102514692B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911688A (en) * | 1972-09-13 | 1975-10-14 | Coflexip | Pipe apparatus for the collection of petroleum from deep water wells |
| EP0277840A2 (en) * | 1987-02-05 | 1988-08-10 | Conoco Inc. | Modular near-surface completion system |
| US5676209A (en) * | 1995-11-20 | 1997-10-14 | Hydril Company | Deep water riser assembly |
| CN1217041A (en) * | 1996-03-12 | 1999-05-19 | 特杰·马格纳森 | Underwater installation and method for building same |
| US6082391A (en) * | 1997-09-12 | 2000-07-04 | Stolt Comex Seaway | Device for hybrid riser for the sub-sea transportation of petroleum products |
| US6688250B2 (en) * | 2001-08-06 | 2004-02-10 | Seahorse Equipment Corporation | Method and apparatus for reducing tension variations in mono-column TLP systems |
| CN2727043Y (en) * | 2004-01-20 | 2005-09-21 | 天津市海王星海上工程技术有限公司 | Deep water tension leg type single point mooring device |
| CN202389573U (en) * | 2011-12-24 | 2012-08-22 | 大连理工大学 | Oil and gas field engineering development system of extreme deepwater ocean |
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| CN102514692A (en) | 2012-06-27 |
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