CN1798900A - Offshore production system with drilling/workover rig - Google Patents
Offshore production system with drilling/workover rig Download PDFInfo
- Publication number
- CN1798900A CN1798900A CN 200480015417 CN200480015417A CN1798900A CN 1798900 A CN1798900 A CN 1798900A CN 200480015417 CN200480015417 CN 200480015417 CN 200480015417 A CN200480015417 A CN 200480015417A CN 1798900 A CN1798900 A CN 1798900A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- pylon
- hull
- pipe
- trochanter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
An offshore hydrocarbon production system includes a vessel (12) with a turret (16), and a fluid swivel (50) on the turret that is connected to risers (41-43) that extend to the sea floor (26), wherein a drilling/workover rig (60) on the vessel can lower tubing (65) toward the sea floor without danger that the tubing will wrap about the risers when the hull weathervanes. The rig is mounted on the turret. Pipes (54) that extend from the rotatable part of the fluid swivel to fittings (55) on the hull (14), are supported on a gantry (80) that is fixed to the hull and having a gantry middle portion (106) that extends over the turret. The gantry middle portion extends higher than the top (88) of the rig.
Description
Technical field
The present invention relates to have the offshore production system of drilling well/testing fixture.
Background technology
Be used for generally including a pylon by the ship that an offshore field produce hydrocarbons is used, this pylon mooring is to the seabed.Hull can rotate around pylon, thereby hull can float around pylon according to the change of wind, wave and current.Pylon can be positioned in the crescent pond of hull, perhaps is positioned at the outside of hull, such as the outside at the hull head.Have the upper end by near the vertical tube that extends up to pylon the seabed, be connected to a fluid swivel on the pylon.Common is a drilling well/testing fixture to be set on hull.Pipe drill set of this device supporting, it is used at ocean floor drilling.One second and after oil well can get out, and continued delivery oil gas to hull by former oil well vertical tube.Oil well got out installed with vertical tube after, drilling well/testing fixture can continue to use, and is used for the maintenance of oil well such as the supporting pipes drill set, the paraffin that gathers such as removing.
A problem that runs in using this device is when hull floats, and extends downward pipe by device and must upwards return, and may finally twine around vertical tube itself otherwise extend downward drill set by the device on the hull that floats.In fact when drill set began to rub with vertical tube, drill set may be damaged vertical tube, not it is desirable for and need promote drill set at every turn when hull floats greater than the several years, and a device can carry out drilling well and/or inspection on hull.
Summary of the invention
According to one embodiment of the present of invention, a kind of like this offshore production system is provided, wherein one or more vertical tubes extend up to a fluid swivel stack on the pylon, this pylon mooring is to the seabed and be installed in rotation on the hull, and a drilling well/testing fixture wherein also is set.The present invention needing to avoid promoting by device when hull floats and extends a downward pipe.This device is installed on the pylon and away from one group of vertical tube axle on the bottom of pylon, thus make with floating of hull irrelevant, by pylon extend downward drill set can around vertical tube twine in addition with its friction.
The upper end of vertical tube is connected to the nonrotational part of fluid swivel stack.The pivotable parts of fluid swivel stack is installed on the crane span structure, and this crane span structure is fixed to hull, and crane span structure has a gantry middle portion, and this location, middle part is higher than the top of device.The nonrotational part location of fluid swivel stack is higher than turret deck, and it can be extended a structure support upwards on pylon by turret deck.
The upper end of one group of vertical tube can connect together and enter in the house steward, to reduce the number of the fluid swivel that needs.A spool of pipe also can be installed on the pylon.
Features of novelty of the present invention will be listed in the appending claims especially.The present invention can be read and understanding best by following description taken in conjunction accompanying drawing.
Description of drawings
Fig. 1 is an axonometric drawing according to a floating marine production system of one embodiment of the present of invention;
Fig. 2 is a cut-away section lateral view of the system of Fig. 1;
Fig. 3 is the housing of system of Fig. 2 and a sectional drawing of pylon;
Fig. 4 is a top view of the pylon of Fig. 2;
Fig. 5 is the sectional drawing of a side of a fluid swivel of the fluid swivel of Fig. 3;
Fig. 6 is an axonometric drawing according to the part of upper end of a pylon of another embodiment of the present invention and hull.
The specific embodiment
Fig. 1 illustrates a system 10 that uses from each sub-sea drilled wells produce hydrocarbons, this system comprises that is a floating structure 12 a ship shape, that float, this ship has a hull 14 and a pylon 16, and pylon 16 is installed in rotation on the hull around the pylon axis 18 of a perpendicular.To the seabed, mooring system 20 comprises one group of chain 22 that dangles to pylon by mooring system 20 moorings, and the chain 22 that dangles has the upper end and is connected to pylon, and has lower end 24 and be placed on the seabed 26.Can the drift about amount of a qualification of floating structure or ship, and hull can float, Here it is along with wind, the change of wave and current it can be around axis 18 rotations.
This system can be from several mouthfuls of sub-sea drilled wells produce hydrocarbons.3 mouthfuls of oil well 31-33 are shown in Fig. 3, and 3 vertical tube 41-43 are shown, the platform 44 from the seabed extends upwards, extends down to oil well at platform 44 place's pipes.Vertical tube extends upwards by pylon to a swivel stack or swivel mechanism 50 (fluid swivel has at least one trochanter).Swivel mechanism 50 has at least one trochanter, and swivel stack normally, and has the upper end 52 that fixing outer trochanter partly is connected to vertical tube.Trochanter has rotating trochanter part (it is along with hull rotates), this trochanter partly is connected to rotating pipe 54, this pipe 54 rotate and extend to along with hull on the hull pipe fitting 55 and to treatment facility 56, this equipment is arranged on the deck of hull 14.The oil gas of handling can temporarily be stored on the hull and by 59 unloadings of an output channel, output channel 59 can guide to a shore facilities, guides to an oil tank, and this oil tank can load oil gas and leave, and perhaps guides to other similar structure.Instead, the oil gas of production can directly export, and does not need primary storage.
According to the present invention, the applicant provides a kind of drilling well and/or testing fixture 60, and this drilling well and/or testing fixture are installed on the pylon 16.This drilling well and/or testing fixture comprise the equipment of the pipe 65 that can descend, and to extend near the seabed, perhaps are stored in a continuous pipe on the major diameter spool 64 such as many ends and the terminal pipe that is connected.This drilling well and/or testing fixture decline pipe, thus pipe 66 is extended down near the seabed 26 along the path.
This drilling well and/or testing fixture also comprise can turne tube equipment, pipe can be used in drilling well, cleaning pipeline or other purpose.In a system, the inspection junction of 66 special uses of extending is supported by pylon along the path, and pipe descends with this inspection junction.
Drilling well and/or testing fixture be placed on the pylon 16 be with the great advantages that replaces being placed on the hull 14, pipe 65 extends downwards from device, do not float subsequently, but 66 maintenances fixing greatly (with respect to the rotation around the pylon axle) along the path, as vertical tube 41-43.Also have, the upper end of pipe drifts about with speed identical with the pylon drift with hull and identical direction with the upper end of vertical tube.If drilling well and/or testing fixture are not mounted on the pylon, but on hull 14, it requires a pipe to pull out along a path that is similar to path 66 when ship floats above a limit amount usually subsequently.Otherwise pipe can rub around vertical tube 41-43 winding with them, can damage vertical tube like this.Therefore, by drilling well and/or testing fixture 60 are placed on the pylon 16, and the upper end of vertical tube is installed on the pylon 16, the applicant can make drilling well and/or inspection and similar work proceed when ship floats, perhaps when floating, ship allow pipe 65 to remain on original position at least, to replace requiring the pull-up pipe.Ship can dispose propeller 200-204 (Fig. 2), is used for direction and Position Control, and is little when being used on the hull to medium masterpiece when only having especially at the weather of dead calms, is used for the restriction drift and floats.
Producing a problem when a drilling well and/or testing fixture are placed on the pylon is that nonrotational (being no more than about 20 °) device may disturb with the pipe 54 that rotates, and this pipe extends to hull by the rotating part of fluid swivel.Shown in Fig. 5, each fluid swivel of swivel mechanism 50 comprises an outer part 84, and it is fixed to pylon, and it is connected to a riser upper end 52a.Fluid swivel also has an interior part 86, and it is rotating, and it rotates with hull when hull floats.The interior part of trochanter is connected to a rotatable pipes 54, and this pipe 54 extends to the union on the hull.Because these pipes rotate around pylon axis 18, pipe 54 (Fig. 3) can crash device 60, unless the anti-point here of taking steps.
As shown in Figure 3, the applicant provides a crane span structure 80, to keep rotatable pipes 54 above the top 88 of device 60.As a result, when housing rotated, these pipes 54 can not collide drilling well and/or testing fixture 60, and instead moved in drilling well and/or above the testing fixture 60.Also might provide whenever the time and move the system that rotating segment of tube is avoided the path of device,, but can increase complexity like this such as disclosed in patent US patent 5,205,768 near interference.Crane span structure has the end 100,102 relatively of the opposite flank that is fixed to pylon, and has a middle part 106, and it strides across pylon a height B that surpasses the deckhead 90 of pylon.Also might instead construct gantry middle portion for like this, only make two parts at middle part stride across the device top, shown in dotted line 80X.
Fig. 3 illustrates the fluid swivel 50 that is bearing in gantry middle portion 106.Fluid swivel supports like this, makes interior part 86 (Fig. 5) of trochanter and rotatable pipes 54 be fixed to crane span structure.Each swivel outer parts 84 is connected to riser upper end 52.Riser upper end 52a essentially horizontally extends with the device relative side of a distance D to pylon axle 18 at least at half place of pylon radius R, thereby the vertical tube middle part 108 of the bottom 109 that is positioned at pylon is kept away by the pipe 65 of drilling well and/or testing fixture 60 declines.Device 60 and along the path 66 pipes that extend are positioned at the relative side of the vertical tube middle part below being right after pylon 108 of pylon axis, as shown in Figure 4, be parallel to pylon axis 18 and extend through the bottom that is positioned at pylon one group of vertical tube the middle part, riser axis 92 is around pylon axis 18 and drilling well and/or testing fixture axis 94 angle A that tilts, be at least 90 °, and preferably near 180 °, along drilling well and/or 94 drilling wells of testing fixture axis and/or testing fixture decline pipe to reduce the possibility of this pipe and vertical tube friction.Preferably, the angle A that exists between the device and the middle part of each vertical tube is at least 90 °, and by such angular separation, two parts 108,94 (Fig. 3) that the applicant can separate vertical tube and be positioned at the pipe of pylon bottom are at least the radius R of pylon.
As shown in Figure 4, the top 52 of vertical tube (below horizontal upper end 52a) is arranged on and leaves suitable distance D place of fluid swivel on the direction leaving drilling well and/or testing fixture axis 94.Vertical tube part that is positioned at the pylon bottom and the pipe that extends along assembly axis are separated.This distance D be at least separating distance E between drilling well and/or testing fixture axis 94 and the pylon axis 18 at least half.Separating distance between riser axis 92 and drilling well and/or the testing fixture axis 94 is preferably more than the radius of pylon.
Crane span structure 80 (Fig. 3) not only is used in the supporting fixing tube and might supports fluid swivel, and can support a capstan winch, this capstan winch can be used in and promote segment of tube that is descended by drilling well and/or testing fixture and the heavy part that promotes other in installation and subsequent working.Pylon is installed on the hull 14 by a bearing assembly 110, and this bearing assembly 110 comprises upper and lower bearing 112,114.Pylon has a major diameter that is of a size of 25m.Pylon can be rotatably supported on the hull by bogie etc., because roller bearing can not be used in big like this diameter usually.
Though can being used in, riser upper portions 52 prevents that the outer part 84 (Fig. 4) of the fluid swivel of fixing is around interior part 85 rotations of rotating trochanter, the applicant more is ready to discharge stress on the riser upper end by an anti-rotational structure, and this anti-rotational structure is such as the tube construction 120 shown in Fig. 3.This tube construction 120 extends between the outside of the major part of pylon 16 and fluid swivel 50 is divided.
Fig. 3 illustrates a house steward 122, and it can merge the output of one group of vertical tube, to reduce the number of required fluid swivel in swivel stack.
Fig. 6 illustrates another kind of the arrangement, and wherein fluid swivel 50A is fixed on the deck 130 of pylon, and the outermost end 52B of vertical tube is connected to the interior trochanter part of fluid swivel.Outer trochanter partly is connected to rotatable pipes 54A, and these pipes are by a crane span structure 80A supporting of another structure.Crane span structure 80A has an end 140 that is fixed to hull 12A, and has a cantilevered opposite end 142.Gantry middle portion 144 location are higher than turret deck 130, with the top 132 that strides across device 134, make gantry middle portion directly stride across drilling well and/or testing fixture in the location when hull floats.The advantage that this structure has is, crane span structure and rotatable pipes move directly stride across drilling well and/or testing fixture regular and only be regular half of crane span structure shown in Fig. 1-5.Though rise by drilling well and/or testing fixture and to extend downward pipe along drilling well and/or testing fixture axis 136 and when each drilling well and/or testing fixture move to below the crane span structure, do not need pull-up, if the big vertical separation of neither one between crane span structure and drilling well and/or testing fixture, another of the pipe top that section moves to drilling well and/or testing fixture may stop at this moment.Therefore by the structure crane span structure, its part can be located stride across drilling well and/or testing fixture, some work of drilling well and/or testing fixture should stop needing to reduce.Should be by a bearing erection bridge outer end 142 on pylon, with the supporting gantry outer end.But can make structure complicated like this.
In a system of type shown in Figure 3, it is 12.5m that the pylon of applicant's design has a radius R.Capstan winch 60 requires highly to be some meters (though capstan winch can be recessed into below the turret deck, to allow a lower gantry top).Shown capstan winch extends 13m on pylon deckhead 90.
Therefore, the invention provides a kind of offshore oil and gas production system, this system comprises a floating structure (being called a ship here), this structure has the hull that floats, the rotating pylon of a mooring, this pylon is bearing on the housing by bearing, and the drilling well or check the device of the pipe of usefulness to the seabed of can descending, and it avoids promoting pipe to avoid the needs of damage vertical tube when hull floats.This device is installed on the pylon, preferably makes device keep away riser upper end.A crane span structure is installed on the hull, and this crane span structure supporting rotatable pipes of partly being extended by rotating trochanter, and this crane span structure has a middle part, and the eminence on turret deck is extended, above the height that is positioned at the device top.Can use a crane span structure, it has the relative side that opposing ends is positioned at pylon, perhaps can use a crane span structure, and this crane span structure only has a middle part, it directly strides across the path of device when crane span structure floats, and common this crane span structure has a cantilevered end.
Though specific embodiment of the present invention is in this explanation with illustrate.Should be appreciated that, improve and change easily to produce, therefore, make claims be interpreted as comprising these improvement and equivalent wittingly for those skilled in the art.
Claims (12)
1. offshore production system, can be used in the sea area above the seabed (26), this production system comprises a floating hull (14), be connected to a pylon (16) rotationally, to allow this hull to rotate around the pylon axis (18) of a perpendicular of pylon, a mooring system (20), this mooring system is pylon mooring rotation with the restriction pylon to the seabed, a fluid swivel (50,50A), this fluid swivel has one group of fluid swivel, this fluid swivel has rotating trochanter part (86), and this rotating trochanter part centers on above-mentioned pylon rotational with hull, and this fluid swivel also has non rotatable trochanter part (84), be connected to above-mentioned pylon axle, one group of vertical tube (41-43) extends to non rotatable trochanter part from the well in seabed, and one group of pipe (54,54A), partly extend to hull by rotating trochanter, this production system comprises:
A pipe support device (60,134) be installed in a position on the above-mentioned pylon, with above-mentioned pylon axis level interval is arranged, with avoid device and by device extend any pipe down to the seabed with respect to vertical tube around the pylon rotational, thereby avoid when hull floats pipe around the vertical tube winding.
2. according to the system of claim 1, it is characterized in that also comprising:
Crane span structure (80,80A), this crane span structure is fixed to above-mentioned hull, and has a part (106,144) and extend enough height and stride across above-mentioned pylon, be positioned at above-mentioned device above;
The above-mentioned pivotable parts of above-mentioned fluid swivel is bearing on the above-mentioned crane span structure.
3. according to the system of claim 2, it is characterized in that above-mentioned pylon has a deckhead part (90,130); And comprise:
A nonrotational structure (120), it partly extends up to an above-mentioned non rotatable trochanter part of above-mentioned fluid swivel by above-mentioned deckhead, partly rotates to prevent above-mentioned non rotatable trochanter.
4. according to the system of claim 1, it is characterized in that also comprising:
(54,54A), this rotating pipe partly extends to above-mentioned hull (14) by the above-mentioned rotating trochanter of above-mentioned swivel mechanism at least one rotating pipe;
A crane span structure (80) has opposing ends, is fixed to the relative side of above-mentioned pylon, and has a middle part (106), the above-mentioned rotating pipe of its supporting, and above-mentioned middle part has the top part that it is positioned at above-mentioned device.
5. according to the system of claim 1, it is characterized in that above-mentioned device has one and with above-mentioned pylon axis (18) axis (94) of pipe support device spacing, perpendicular arranged;
One group of above-mentioned vertical tube has the part (108) of the bottom that is positioned at above-mentioned pylon, and this part centers and locates in the riser axis of a perpendicular (92);
Above-mentioned pylon has a periphery and is positioned at from predetermined pylon radius (R) of above-mentioned pylon axis and locates;
Above-mentioned riser axis (92) and the level interval of the above-mentioned device axis (94) of above-mentioned device are at least the radius (R) of above-mentioned pylon.
6. according to the system of claim 5, it is characterized in that, above-mentioned pylon has a deckhead (90), and one group of above-mentioned vertical tube, these vertical tubes have upper end (52a) be positioned at above-mentioned pylon deckhead level near, and essentially horizontally extend to leave a distance of above-mentioned device (D) and be at least half the distance of above-mentioned pylon to the radius (R) of above-mentioned rotating trochanter part.
7. according to the system of claim 1, it is characterized in that also comprising:
Be positioned at the house steward (122) on the above-mentioned pylon, this house steward has an input, and this input is connected to one group of above-mentioned vertical tube, and this house steward has an output, and this output is connected to an independent above-mentioned non rotatable trochanter part.
8. according to the system of claim 1, it is characterized in that also comprising:
Trochanter output pipe (54) partly extends to above-mentioned hull by the rotating trochanter of an above-mentioned fluid swivel, and above-mentioned pipe has the part that strides across above-mentioned pylon with the height location greater than the top (88) of above-mentioned device.
9. offshore production system, this system comprises a hull (14), a non rotatable pylon (16), this pylon mooring is to the seabed, and be bearing on the above-mentioned hull by a bearing assembly (110), this pylon allows above-mentioned hull to float around a pylon axis (18) of above-mentioned pylon, at least one fluid swivel (50), this fluid swivel has rotating trochanter part (85) and non rotatable trochanter part (84), and at least one vertical tube (41-43), described vertical tube is extended upwards by the seabed, and by above-mentioned pylon above-mentioned non rotatable trochanter part extremely, this production system comprises:
A crane span structure (80,80A), has an end (100,102,140) be installed on the above-mentioned hull, and have a gantry middle portion (106,144), the location strides across above-mentioned pylon, above-mentioned rotating trochanter partly be positioned at above-mentioned turret deck above, and be connected to above-mentioned gantry middle portion.
10. according to the system of claim 9, it is characterized in that also comprising:
A pipe support device (60,134) be installed on the above-mentioned pylon, above-mentioned pylon has a deckhead (90), and above-mentioned pipe support device projection several meters (B) on above-mentioned pylon deckhead, this device has a device top (88,132) and is positioned at and leaves a predetermined horizontal range of above-mentioned pylon axle (E);
Above-mentioned gantry middle portion has a crane span structure part, is positioned at the top height that surpasses above-mentioned device top of above-mentioned pylon deckhead, thereby makes when hull floats, and above-mentioned crane span structure partly moves and strides across above-mentioned device top.
11. go up device (60 of use at a ship (12) of an offshore production system, 134) a kind of method, wherein, this ship comprises that a hull (14) and a pylon (16) are installed on this hull, wherein the pylon mooring is to the seabed, and at least one vertical tube (41-43) is by a near fluid swivel (50 that extends to the seabed on the pylon, 50A), wherein fluid swivel comprises nonrotational part (84) and a pivotable parts (85) that is connected to pylon, this pivotable parts is connected to a pipe joint (55) on the housing by trochanter output pipe (54), and wherein hull can float around pylon, if vertical tube or pipe do not have pull-up when ship floats, the method allows pipe of device decline not have pipe to center on the danger that vertical tube twines near the of seabed, and the method comprises:
This device is installed on pylon;
Install this trochanter output pipe (54,54A) make its extension in the extension between the top pipe fitting (55) on fluid swivel and hull at the top (88,132) of device.
12., it is characterized in that also comprising according to the method for claim 11:
Build a crane span structure (80), have end (100,102), this end is fixed to above-mentioned hull, and this crane span structure has a crane span structure part (106,144), this crane span structure is partly located and is striden across above-mentioned pylon, and be fixed to above-mentioned trochanter output pipe, this method also comprises the crane span structure part in location, and this part location strides across above-mentioned pylon and this part and extends above above-mentioned pylon and above-mentioned device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47565303P | 2003-06-04 | 2003-06-04 | |
| US60/475,653 | 2003-06-04 | ||
| US10/843,937 | 2004-05-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1798900A true CN1798900A (en) | 2006-07-05 |
| CN100510312C CN100510312C (en) | 2009-07-08 |
Family
ID=36819212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200480015417XA Expired - Fee Related CN100510312C (en) | 2003-06-04 | 2004-05-27 | Offshore production system and method for installing drilling/mending device thereon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100510312C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103492660A (en) * | 2011-04-28 | 2014-01-01 | Bp北美公司 | Offshore fluid transfer systems and methods |
| CN107869314A (en) * | 2016-09-23 | 2018-04-03 | 巴西石油公司 | System and autonomous method for securing riser supports |
| JP7233771B1 (en) | 2021-12-07 | 2023-03-07 | 合同会社小林知財研鑽処 | Submarine resource drilling ship |
| CN116803837A (en) * | 2023-07-31 | 2023-09-26 | 招商局重工（江苏）有限公司 | Single-point mooring system and installation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4630681A (en) * | 1985-02-25 | 1986-12-23 | Decision-Tree Associates, Inc. | Multi-well hydrocarbon development system |
| NO974639L (en) * | 1997-10-08 | 1999-04-09 | Hitec Asa | Method and arrangement for mooring a ship, especially a ship for oil / and / or gas production |
| EP0913324A1 (en) * | 1997-10-28 | 1999-05-06 | Single Buoy Moorings Inc. | Vessel comprising a swivel assembly |
| JP2992935B2 (en) * | 1998-05-19 | 1999-12-20 | 石油公団 | Ship-type floating oil production system |
| WO2001031164A1 (en) * | 1999-10-27 | 2001-05-03 | Single Buoy Moorings Inc. | Drilling-workover vessel having a drill string extending through at least one swivel |
-
2004
- 2004-05-27 CN CNB200480015417XA patent/CN100510312C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103492660A (en) * | 2011-04-28 | 2014-01-01 | Bp北美公司 | Offshore fluid transfer systems and methods |
| CN107869314A (en) * | 2016-09-23 | 2018-04-03 | 巴西石油公司 | System and autonomous method for securing riser supports |
| JP7233771B1 (en) | 2021-12-07 | 2023-03-07 | 合同会社小林知財研鑽処 | Submarine resource drilling ship |
| JP2023084167A (en) * | 2021-12-07 | 2023-06-19 | 合同会社小林知財研鑽処 | Sea bottom resource excavation vessel |
| CN116803837A (en) * | 2023-07-31 | 2023-09-26 | 招商局重工（江苏）有限公司 | Single-point mooring system and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100510312C (en) | 2009-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2198815C2 (en) | System for production of hydrocarbons | |
| CN102498259A (en) | Downhole intervention | |
| US6161620A (en) | Deepwater riser system | |
| US6595725B1 (en) | Tethered buoyant support for risers to a floating production vessel | |
| US6263824B1 (en) | Spar platform | |
| US6309141B1 (en) | Gap spar with ducking risers | |
| US6092483A (en) | Spar with improved VIV performance | |
| US6227137B1 (en) | Spar platform with spaced buoyancy | |
| EP3713825A1 (en) | Floating driller | |
| US4395160A (en) | Tensioning system for marine risers and guidelines | |
| US8690480B2 (en) | Freestanding hybrid riser system | |
| CN1139972A (en) | Hydrocarbon fluid transfort system | |
| US20100326667A1 (en) | Production of hydrocarbons | |
| AU2004245764B2 (en) | Offshore production system with drilling/workover rig | |
| CN104641067B (en) | Top-tensioned riser systems | |
| CN1268617A (en) | Universal hanging chair type lifting pipe supporting frame | |
| EP0808270B2 (en) | Offshore turret system | |
| CN100510312C (en) | Offshore production system and method for installing drilling/mending device thereon | |
| AU2015248999B2 (en) | External turret having bogie wheels | |
| BR112012029445B1 (en) | installation of bottom-to-surface connection and offshore towing method of a tower | |
| US20040026081A1 (en) | System for accommodating motion of a floating body | |
| US10550649B2 (en) | Drilling apparatus | |
| KR102477560B1 (en) | Hybrid offshore structure | |
| Wanvik et al. | Deep water moored semisubmersible with dry wellheads and top tensioned well risers | |
| WO1996036528A1 (en) | Device for transferring a fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Granted publication date: 20090708 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |