CN204956869U - Deepwater semi-submersible drilling platform - Google Patents
Deepwater semi-submersible drilling platform Download PDFInfo
- Publication number
- CN204956869U CN204956869U CN201520721024.6U CN201520721024U CN204956869U CN 204956869 U CN204956869 U CN 204956869U CN 201520721024 U CN201520721024 U CN 201520721024U CN 204956869 U CN204956869 U CN 204956869U
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- Prior art keywords
- auxiliary
- mounting plate
- upper mounting
- regulator solution
- piston rod
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- Expired - Fee Related
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- 238000005553 drilling Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 210000000078 claw Anatomy 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a deepwater semi-submersible drilling platform, which comprises an upper platform, a lower hull and a sea wave compensation device connected between the upper platform and the lower hull; the sea wave compensation device comprises three rigid vertical seats which are arranged on the lower ship body and exposed out of the sea level and distributed in a triangular shape or more than four rigid vertical seats which are distributed in two rows in parallel, the upper surfaces of the rigid vertical seats are hinged with adjusting hydraulic cylinders through spherical hinges, the end parts of piston rods of the adjusting hydraulic cylinders are connected with bearing seats arranged on the lower surface of the upper platform through pin shafts, the adjusting hydraulic cylinders are connected with an adjusting hydraulic control system, and each adjusting hydraulic cylinder is independently controlled by the adjusting hydraulic control system. The platform can effectively compensate the heave motion, the roll motion and the pitch motion of the main deck of the upper platform, thereby ensuring the constant contact of a drill bit and the bottom of a well in the deep sea drilling process.
Description
Technical field
The utility model relates to a kind of deep water semi-submersible drilling platform.
Background technology
During semi-submersible drilling unit operation at sea, be subject to the impact of marine stormy waves, particularly the impact of marine typhoon, although the roll and pitch amplitude of stormy waves to platform is less, to the heave drop that platform produces, namely the impact of heaving is larger.To the operation of offshore platform, ensure that the constant contact in drill bit and shaft bottom in deep sea drilling process produces larger impact.
As Chinese patent, a kind of deep water semi-submersible drilling platform, the patent No.: ZL200910181058.X, " it comprises buoyancy tank, column, singletree and main deck; be provided with a rig floor above the moon pool in the middle part of main deck; rig floor is provided with a derrick ... adopt anchoring location and dynamic positioning integrated positioning system; anchor mooring positioning system is made up of the forward and backward 4 groups of windlass being arranged in the left and right side of a ship of main deck; often organize windlass and be furnished with 3 anchor chains, dynamic positioning system (DPS) is made up of the power propeller of 8 360 ° of full circle swingings in forward and backward four corners, the bottom being arranged on two buoyancy tanks." although this invention can reduce the roll and pitch amplitude of stormy waves to platform effectively, the heaving of main deck is not controlled.
Utility model content
Technical matters to be solved by this invention is: provide a kind of effectively can compensate upper mounting plate main deck heaving and roll and pitch thus ensure the wave compensating device of the deep water semi-submersible drilling platform of the constant contact in drill bit and shaft bottom in deep sea drilling process.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: one has deep water semi-submersible drilling platform, comprises upper mounting plate, lower hull, wave compensating device between connection upper mounting plate and lower hull; Wave compensating device comprises and is arranged on lower hull and exposes the rigidity stands that the distribution of three of sea level shapes triangular in shape or more than four become two row's distributions arranged side by side, rigidity stand upper surface is hinged with regulator solution cylinder pressure by ball pivot, the bearing seat that the piston rod end of regulator solution cylinder pressure is arranged by bearing pin and the lower surface of upper mounting plate is connected, and regulator solution cylinder pressure is connected with regulator solution pressure control system and each regulator solution cylinder pressure is controlled separately by regulator solution pressure control system.
The further technical matters to be solved of the utility model is: the deep water semi-submersible drilling platform that can ensure platform security when providing a kind of regulator solution cylinder pressure at wave compensating device to lose efficacy.
For solving above-mentioned further technical matters, the technical scheme that the utility model adopts is: that described drilling platform lower hull is provided with at least three shapes triangular in shape distributions and expose the auxiliary strut on sea level, auxiliary stand upper surface is fixed with auxiliary hydraulic cylinder, auxiliary hydraulic cylinder is connected with Control System of Auxiliary-hydraulic Pressure and each auxiliary hydraulic cylinder is controlled separately by Control System of Auxiliary-hydraulic Pressure, the piston rod end of auxiliary hydraulic cylinder is provided with the back-up block for supporting upper mounting plate, auxiliary hydraulic pressure cylinder piston rod is in contraction state under normal circumstances, do not contact with deck, when regulator solution cylinder pressure loses efficacy, auxiliary hydraulic pressure cylinder piston rod stretched out, upper mounting plate is supported by the back-up block on auxiliary hydraulic pressure cylinder piston rod.
As the preferred scheme of one, back-up block is provided with draw-in groove, and upper mounting plate lower surface is provided with the gripping mechanism for clamp standoff block matched.
As the preferred scheme of one, described back-up block is cylindric, on it, draw-in groove is annular groove, described gripping mechanism comprises the claw that two are provided with semicircle card interface, claw is connected with the piston rod end of positioning hydraulic cylinders of the lower surface being arranged on upper mounting plate, claw is provided with on card interface the clamping matched with annular groove protruding.
The beneficial effects of the utility model are: connect upper mounting plate and lower hull owing to have employed hydraulic actuating cylinder, the heave drop that can produce due to wind wave action at the diverse location compensating platform of platform, decrease the impact of hanging down and swinging, ensure the constant contact in drill bit and shaft bottom in deep sea drilling process.
Because auxiliary stand upper surface is fixed with auxiliary hydraulic cylinder, auxiliary hydraulic cylinder is connected with Control System of Auxiliary-hydraulic Pressure and each auxiliary hydraulic cylinder is controlled separately by Control System of Auxiliary-hydraulic Pressure, the piston rod end of auxiliary hydraulic cylinder is provided with the back-up block for supporting upper mounting plate, auxiliary hydraulic pressure cylinder piston rod is in contraction state under normal circumstances, do not contact with deck, when regulator solution cylinder pressure loses efficacy, auxiliary hydraulic pressure cylinder piston rod stretched out, upper mounting plate is supported by the back-up block on auxiliary hydraulic pressure cylinder piston rod, further enhance the safety performance of platform under exceedingly odious weather condition.
Because back-up block is provided with draw-in groove, upper mounting plate lower surface is provided with the gripping mechanism for clamp standoff block matched, and strengthens the reliability that back-up block is connected with upper mounting plate.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is the perspective view at another visual angle of the present utility model.
In Fig. 1 to Fig. 2: 1. upper mounting plate, 2. lower hull, 3. rigidity stand, 4. regulator solution cylinder pressure, 5. bearing pin, 6. auxiliary strut, 7. auxiliary hydraulic cylinder, 8. back-up block.
Detailed description of the invention
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1-2, a kind of deep water semi-submersible drilling platform with wave compensating device, comprises upper mounting plate 1, lower hull 2, connects wave compensating device between upper mounting plate 1 and lower hull 2; Wave compensating device comprises the rigidity stand 3 being arranged on three shapes triangular in shape that are on lower hull 2 and that expose sea level and distributing, rigidity stand 3 upper surface is hinged with regulator solution cylinder pressure 4 by ball pivot, the piston rod end of regulator solution cylinder pressure 4 is connected by the bearing seat of bearing pin 5 with the lower surface of upper mounting plate 1, and regulator solution cylinder pressure 4 is connected with regulator solution pressure control system (not shown) and each regulator solution cylinder pressure 4 is controlled separately by regulator solution pressure control system.
That drilling platform lower hull 2 is provided with three shapes triangular in shape distributions and expose the auxiliary strut 6 on sea level, auxiliary stand upper surface is fixed with auxiliary hydraulic cylinder 7, auxiliary hydraulic cylinder 7 is connected with Control System of Auxiliary-hydraulic Pressure and each auxiliary hydraulic cylinder 7 is controlled separately by Control System of Auxiliary-hydraulic Pressure (not shown), the piston rod end of auxiliary hydraulic cylinder 7 is provided with the cylindric back-up block 8 for supporting upper mounting plate 1, auxiliary hydraulic cylinder 7 piston rod is in contraction state under normal circumstances, do not contact with deck, when regulator solution cylinder pressure 4 loses efficacy, auxiliary hydraulic cylinder 7 piston rod stretched out, upper mounting plate 1 is supported by the back-up block 8 on auxiliary hydraulic cylinder 7 piston rod.
Back-up block 8 is provided with annular slot, and upper mounting plate 1 lower surface is provided with the gripping mechanism (not shown) for clamp standoff block 8 matched.Gripping mechanism comprises the claw that two are provided with semicircle card interface, and claw is connected with the piston rod end of positioning hydraulic cylinders of the lower surface being arranged on upper mounting plate 1, claw is provided with on card interface the clamping matched with annular groove protruding.
The above embodiments are the principle of illustrative the invention and effect thereof only, and the embodiment that part is used, but not for limiting the utility model; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. a deep water semi-submersible drilling platform, comprises upper mounting plate, lower hull, wave compensating device between connection upper mounting plate and lower hull; It is characterized in that: wave compensating device comprises and is arranged on lower hull and exposes the rigidity stands that the distribution of three of sea level shapes triangular in shape or more than four become two row's distributions arranged side by side, rigidity stand upper surface is hinged with regulator solution cylinder pressure by ball pivot, the bearing seat that the piston rod end of regulator solution cylinder pressure is arranged by bearing pin and the lower surface of upper mounting plate is connected, and regulator solution cylinder pressure is connected with regulator solution pressure control system and each regulator solution cylinder pressure is controlled separately by regulator solution pressure control system.
2. a kind of deep water semi-submersible drilling platform as claimed in claim 1, it is characterized in that: that described drilling platform lower hull is provided with at least three shapes triangular in shape distributions and expose the auxiliary strut on sea level, auxiliary stand upper surface is fixed with auxiliary hydraulic cylinder, auxiliary hydraulic cylinder is connected with Control System of Auxiliary-hydraulic Pressure and each auxiliary hydraulic cylinder is controlled separately by Control System of Auxiliary-hydraulic Pressure, the piston rod end of auxiliary hydraulic cylinder is provided with the back-up block for supporting upper mounting plate, auxiliary hydraulic pressure cylinder piston rod is in contraction state under normal circumstances, do not contact with deck, when regulator solution cylinder pressure loses efficacy, auxiliary hydraulic pressure cylinder piston rod stretched out, upper mounting plate is supported by the back-up block on auxiliary hydraulic pressure cylinder piston rod.
3. a kind of deep water semi-submersible drilling platform as claimed in claim 2, is characterized in that: back-up block is provided with draw-in groove, and upper mounting plate lower surface is provided with the gripping mechanism for clamp standoff block matched.
4. a kind of deep water semi-submersible drilling platform as claimed in claim 3, it is characterized in that: described back-up block is cylindric, on it, draw-in groove is annular groove, described gripping mechanism comprises the claw that two are provided with semicircle card interface, claw is connected with the piston rod end of positioning hydraulic cylinders of the lower surface being arranged on upper mounting plate, claw is provided with on card interface the clamping matched with annular groove protruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721024.6U CN204956869U (en) | 2015-09-17 | 2015-09-17 | Deepwater semi-submersible drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721024.6U CN204956869U (en) | 2015-09-17 | 2015-09-17 | Deepwater semi-submersible drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204956869U true CN204956869U (en) | 2016-01-13 |
Family
ID=55051950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520721024.6U Expired - Fee Related CN204956869U (en) | 2015-09-17 | 2015-09-17 | Deepwater semi-submersible drilling platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204956869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046708A (en) * | 2020-09-16 | 2020-12-08 | 中国石油大学(华东) | Hyperstatic-prevention lifting device and offshore platform lifting method |
| CN113879472A (en) * | 2021-11-03 | 2022-01-04 | 江苏科技大学 | Semi-submersible drilling platform system with pose compensation capability and control method |
-
2015
- 2015-09-17 CN CN201520721024.6U patent/CN204956869U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046708A (en) * | 2020-09-16 | 2020-12-08 | 中国石油大学(华东) | Hyperstatic-prevention lifting device and offshore platform lifting method |
| CN112046708B (en) * | 2020-09-16 | 2023-01-31 | 中国石油大学(华东) | Hyperstatic-prevention lifting device and offshore platform lifting method |
| CN113879472A (en) * | 2021-11-03 | 2022-01-04 | 江苏科技大学 | Semi-submersible drilling platform system with pose compensation capability and control method |
| CN113879472B (en) * | 2021-11-03 | 2024-01-30 | 江苏科技大学 | Semi-submersible drilling platform system with pose compensation capability and control method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160917 |