CN114852282A - Tieback device suitable for installation of inboard suspension riser of semi-submersible production platform - Google Patents
Tieback device suitable for installation of inboard suspension riser of semi-submersible production platform Download PDFInfo
- Publication number
- CN114852282A CN114852282A CN202210531135.5A CN202210531135A CN114852282A CN 114852282 A CN114852282 A CN 114852282A CN 202210531135 A CN202210531135 A CN 202210531135A CN 114852282 A CN114852282 A CN 114852282A
- Authority
- CN
- China
- Prior art keywords
- auxiliary
- semi
- winch
- main
- production platform
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/30—Moving or transporting modules or hull blocks to assembly sites, e.g. by rolling, lifting or floating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B75/00—Building or assembling floating offshore structures, e.g. semi-submersible platforms, SPAR platforms or wind turbine platforms
Abstract
The invention discloses a tie-back device suitable for mounting a hanging vertical pipe on the inner side of a semi-submersible production platform, which comprises a lifting module, a main winch, an auxiliary winch, a main winch guide wheel, an auxiliary winch guide wheel, a connecting structure, a main guide pulley, an auxiliary guide pulley and a hull auxiliary guide wheel, wherein the lifting module is independent of the existing semi-submersible production platform and is connected with the platform through a special connecting structure, and after the tie-back operation of the vertical pipe is finished on the sea, a floating crane can be adopted for dismantling and recycling so as to be continuously used at a later stage. Meanwhile, through the application of the main guide head-swinging pulley at the bottom of the platform, the auxiliary guide pulley at the bottom of the platform and the auxiliary guide pulley of the ship body, the operation of the tie-back action of the vertical pipe at the inner side of the semi-submersible platform is realized, and the design difficulty of a tie-back module and the work amount of offshore operation are greatly simplified.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a tie-back device suitable for mounting a suspension riser on the inner side of a semi-submersible production platform.
Background
Deepwater semi-submersible production platforms have gained increasing engineering applications globally as the major deepwater oil and gas development equipment in the world. Generally, a deepwater semi-submersible production platform needs to be matched with a deepwater riser to form a large mode for deepwater oil and gas resource development. The deepwater riser is primarily used for transport of production media between an underwater production facility and a floating platform.
As a typical deep water riser type, a steel catenary riser (hereinafter referred to as SCR) has the characteristics of strong adaptability to the movement of a floating body and relatively simple structure. The SCR is usually located outside the floating platform using a dedicated suspension device. In consideration of different deep water development project requirements, a plurality of different types of SCR can be arranged on a deep water semi-submersible production platform to realize different conveying functions, and some of the SCR can be arranged on the inner side of a hull loop of the semi-submersible platform and cannot realize loop connection by adopting a conventional riser loop connection device. Meanwhile, the conventional SCR tieback device is arranged on the platform and serves as a permanent facility of the platform, so that the dead weight of the platform is increased, the platform is not favorable for heavy control, and meanwhile, the winch cable guide path needs to be considered in the platform design, so that inconvenience is brought to the overall platform design and the tieback device design.
Disclosure of Invention
The invention aims to provide a tie-back device for mounting a suspension vertical pipe on the inner side of a semi-submersible production platform.
In order to solve the technical problem, the invention provides a tieback device suitable for mounting a hanging vertical pipe on the inner side of a semi-submersible production platform, which comprises a connecting structure, wherein the connecting structure is fixed on the side edge of a lifting module, the lifting module is of a multi-layer frame structure with a top layer and a bottom layer, a main winch is fixed on the top of the top layer of the lifting module, a main winch guide hole is formed in the top layer and the bottom layer of the lifting module in the vertical direction of the main winch, a main winch guide wheel is fixed at the bottom of the bottom layer, a built-in cable of the main winch sequentially penetrates through the main winch guide hole in the top layer, the main winch guide hole in the bottom layer, the main winch guide wheel and a main guide pulley, and the main guide pulley is fixed at the bottom of the production platform; the hoisting device is characterized in that a plurality of auxiliary winches are fixed at the tops of top layers of hoisting modules on two sides of the main winch, auxiliary winch guide holes are formed in the top layers and the bottom layers of the hoisting modules in the vertical direction of the auxiliary winches, auxiliary winch guide wheels are fixed at the bottoms of the bottom layers, built-in mooring ropes of the auxiliary winches sequentially penetrate through the auxiliary winch guide holes in the top layers, the auxiliary winch guide holes in the bottom layers, the auxiliary winch guide wheels, the auxiliary guide pulleys and the hull auxiliary guide wheels, the auxiliary guide pulleys are fixed at the bottom of the production platform, and the hull auxiliary guide wheels are connected with the mooring ropes in a sliding mode.
According to a preferred embodiment of the invention, the connecting structure comprises a pin shaft connecting structure, and the pin shaft connecting structure comprises a plurality of pin holes arranged on the same side edge of the top layer of the lifting module and a plurality of long and short pins arranged on the main structure of the semi-submersible production platform.
According to a preferred embodiment of the invention, the connecting structure further comprises a bolt and nut connecting structure, and the bolt and nut connecting structure comprises a bolt, a nut, a bolt hole arranged on the same side of the bottom layer of the lifting module and a bolt hole arranged on the main structure of the semi-submersible production platform.
According to a preferred embodiment of the invention, the rotation angles of the main winch guide wheel and the auxiliary winch guide wheel are both 360 °.
According to a preferred embodiment of the invention, the height between the top and bottom layers of the lifting module corresponds to the elevation of the main structure of the semi-submersible production platform.
According to a preferred embodiment of the invention, the main winch is fixed in the centre of the top layer of the hoisting module.
According to a preferred embodiment of the invention, the main guide pulley is located on the extension of the riser projected towards the production platform.
According to a preferred embodiment of the invention the projection points of the auxiliary guide pulleys onto the riser are located on both sides of the riser extension line.
According to a preferred embodiment of the invention, the lifting module is of steel construction.
According to a preferred embodiment of the invention, the lifting module is of square construction.
The invention has the technical effects that:
1. in the tieback device suitable for mounting the suspended vertical pipe on the inner side of the semi-submersible production platform, a lifting module with a multilayer structure is detachably fixed on the production platform through a connecting structure, cables arranged in a main winch and an auxiliary winch vertically enter a main winch guide wheel and an auxiliary winch guide wheel, the main winch guide wheel and the auxiliary winch guide wheel can realize 360-degree rotation and guide the cables to a main guide pulley and an auxiliary guide pulley at the bottom of the production platform, and the cables of the main winch are connected with the vertical pipe after passing through the main guide pulley; the auxiliary winch cable extends out of the ship body at an approximate horizontal angle through the auxiliary winch guide wheel and the ship body auxiliary guide wheel and is connected with the vertical pipe head; thereby the beneficial effect of tieback of the suspension vertical pipe at the inner side of the semi-submersible production platform is realized.
2. The invention relates to a tie-back device suitable for mounting a hanging riser on the inner side of a semi-submersible production platform.
3. The invention relates to a tieback device suitable for mounting a suspension riser on the inner side of a semi-submersible production platform.
Drawings
FIG. 1 is a side view of a tie-back apparatus of the present invention adapted for installation of a suspended riser inside a semi-submersible production platform;
FIG. 2 is a top view of a tie-back apparatus of the present invention adapted for installation of a suspended riser inside a semi-submersible production platform;
FIG. 3 is a schematic diagram of a tie-back device adapted for installation of a suspended riser inside a semi-submersible production platform according to the present invention connected to a riser;
FIG. 4 is a front perspective view of a lifting module of a tie-back assembly of the present invention adapted for mounting on an inboard suspended riser of a semi-submersible production platform;
FIG. 5 is a rear perspective view of a lifting module of a tie-back apparatus of the present invention adapted for mounting a hanging riser inside a semi-submersible production platform;
FIG. 6 is a bottom view of a lifting module of a tie-back apparatus of the present invention adapted for installation of a hanging riser inside a semi-submersible production platform;
fig. 7 is a schematic connection structure diagram of a tie-back device suitable for mounting a suspension riser inside a semi-submersible production platform according to the invention.
Reference numerals: 1-a lifting module; 2-main winch; 3-auxiliary winch; 4-auxiliary winch guide wheel; 5-main winch guide wheel; 6-pin shaft connecting structure; 7-bolt and nut connection structure; 8-local console; 9-main guide pulley; 10-an auxiliary guide pulley; 11-auxiliary guide wheels of the ship body.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
As shown in fig. 1 to 7, a tieback device suitable for installing a suspended vertical pipe on the inner side of a semi-submersible production platform comprises a connecting structure, wherein the connecting structure is fixed on the side edge of a lifting module 1, the lifting module 1 is a multi-layer frame structure with a top layer and a bottom layer, a main winch 2 is fixed on the top of the top layer of the lifting module 1, a main winch guide hole is formed in the top layer and the bottom layer of the lifting module 1 in the vertical direction of the main winch 2, a main winch guide wheel 5 is fixed on the bottom of the bottom layer, a built-in cable of the main winch 2 sequentially passes through the main winch guide hole in the top layer, the main winch guide hole in the bottom layer, the main winch guide wheel 2 and a main guide pulley 9, and the main guide pulley 9 is fixed on the bottom of the production platform; the top of the top layer of the lifting module 1 on two sides of the main winch 2 is fixed with a plurality of auxiliary winches 3, the top layer and the bottom layer of the lifting module 1 on the vertical direction of the auxiliary winches 3 are provided with auxiliary winch guide holes, the bottom of the bottom layer is fixed with auxiliary winch guide wheels 4, the built-in cable of each auxiliary winch 3 sequentially penetrates through the auxiliary winch guide holes of the top layer, the auxiliary winch guide holes of the bottom layer, the auxiliary winch guide wheels 4, the auxiliary guide pulleys 10 and the ship body auxiliary guide wheels 11, the auxiliary guide pulleys 10 are fixed at the bottom of the production platform, and the ship body auxiliary guide wheels 11 are connected with the cable in a sliding mode.
As shown in fig. 1 and 4, the device is composed of eight parts, namely a lifting module 1, a main winch 2 (one), an auxiliary winch 3 (two), a main winch guide wheel 5, an auxiliary winch guide wheel 4, a connecting structure, a main guide pulley, an auxiliary guide pulley and a hull auxiliary guide wheel. The lifting module 1 is of a two-layer structure, the main winch 2 and the auxiliary winch 3 are located above a top deck of the lifting module 1, the main winch guide wheel 5 and the auxiliary winch guide wheel 4 are located below a bottom deck of the lifting module 1, the lifting module 1 is connected with the semi-submersible production platform through a connecting structure, the main guide pulley 9 and the auxiliary guide pulley 10 are located below a bottom deck of the platform, and the ship body auxiliary guide wheel 11 is located above a ship body deck.
As shown in fig. 4, 5 and 6, the lifting module 1 is made of conventional steel welded and divided into a top deck and a bottom deck. The strength of which needs to take into account the deadweight, the equipment weight and the maximum possible lifting load during the SCR tie-back. And a main winch guide hole and an auxiliary winch guide hole are drilled on a top deck and a bottom deck of the lifting module 1, so that the main winch 2 and the auxiliary winch 3 on the lifting module can be conveniently discharged downwards. The height design of the lifting module 1 considers that the distance from the cable outlet point of the main winch 2 to the guide wheel 5 of the main winch and the distance from the cable outlet point of the auxiliary winch 3 to the guide wheel 4 of the auxiliary winch meet the requirement of direct cable outlet.
The main winch 2 and the auxiliary winch 3 are conventional winches, and the rated capacity, the diameter of the roller and the rope containing amount of the conventional winches can be determined according to actual project requirements.
As shown in fig. 1 and 2, the position of the main winch guide wheel 5 can realize that the rope entering point is positioned right below the rope outlet point at the center of the rope of the main winch 2, and the position of the auxiliary winch guide wheel 4 can realize that the rope entering point is positioned right below the rope outlet point at the center of the rope of the auxiliary winch 3, so that all the ropes on the drums of the main winch 2 and the auxiliary winch 3 can effectively enter the main winch guide wheel 5 and the auxiliary winch guide wheel 4. The main winch guide wheel 5 and the auxiliary winch guide wheel 4 can rotate 360 degrees, and the cable of the main winch 2 is guided to the direction of the main guide pulley 9.
As shown in fig. 1, the main guide pulley 9 is located on an extension line of the projection of the riser on the production platform, so that the cable of the main winch 2 can pass through the main winch guide pulley 5 and then is downwards connected with the head of the riser through the main guide pulley 9. At the same time, the position of the main guide pulley 9 also takes into account the safety distance between the main winch 2 cable and the hull and riser base after connection to the riser head.
As shown in fig. 5 and 7, the connection structure is formed by a semi-submersible platform part and a lifting module 1 part. Meanwhile, the connection modes at the top deck elevation and the bottom deck elevation of the lifting module 1 are different. At the top deck elevation of the lifting module 1, the semi-submersible platform part adopts a long pin and short pin form, the lifting module 1 part adopts a pin hole form, the single pin and the hole can be aligned, positioned and connected by matching the long pin and the short pin, and then other pins and holes are connected, so that the actual hoisting operation is facilitated. At 1 bottom deck elevation of lift module, semi-submerged formula platform part and lift module part terminal surface are the trompil of dull and stereotyped form, adopt bolt and nut to connect, can accomplish the preliminary connection back at top level elevation, carry out the transmission of relevant load through bolt and nut.
Between the hoist module 1 and the main guide pulley 9 and the auxiliary guide pulley 10, a part of auxiliary channels may be provided as required for auxiliary cable guiding work of the main winch 2 and the auxiliary winch 3 from the hoist module 1 to the main guide pulley 9 and the auxiliary guide pulley 10.
As shown in fig. 3 and 4, the hull auxiliary guide wheels 11 are located above the hull, and can be arranged according to the number and the position of the vertical pipes, and are composed of two or more pulleys. The auxiliary winch 3 cable extends out of the hull through the auxiliary winch guide wheel 4 at an approximately horizontal angle through the auxiliary guide pulley 10 and the hull auxiliary guide wheel 11 and is connected with the riser head. The auxiliary positioning effect on the process of tieback positioning of the stand pipe is realized.
As shown in fig. 7, the connecting structure includes a pin shaft connecting structure 6, where the pin shaft connecting structure 6 includes a plurality of pin holes disposed on the same side of the top layer of the lifting module 1 and a plurality of long and short pins disposed on the main structure of the semi-submersible production platform; the connecting structure further comprises a bolt and nut connecting structure 7, wherein the bolt and nut connecting structure 7 comprises a bolt, a nut, a bolt hole arranged on the same side edge of the bottom layer of the lifting module and a bolt hole arranged on the main structure of the semi-submersible production platform.
As shown in fig. 1 to 5, a tie-back device suitable for installing a suspended riser inside a semi-submersible production platform is used and operated as follows:
firstly, integrating a main winch 2, an auxiliary winch 3, an auxiliary winch guide wheel 4 and a main winch guide wheel 5 into a lifting module 1 on land, and completing a function test;
secondly, hoisting the integrated lifting module 1 by using a floating crane, firstly, realizing the primary alignment of the lifting module 1 and a production platform by using a first bolt in a connecting structure, gradually lowering the lifting module, realizing the alignment of a second bolt and a third bolt, and further realizing the connection of the lifting module and the platform structure at the elevation position of a top deck;
thirdly, connecting the lifting module with the platform structure at the elevation position of the bottom deck by adopting bolts and nuts;
fourthly, the main winch can turn to the guide pulley 5 to lead the guide pulley to face the main guide head-turnable pulley 9 at the bottom of the platform, the main winch downwards arranges cables, the cables pass through guide holes in a top deck and a bottom deck of the lifting module, enter the main winch to turn to the guide pulley 5, and forwards continue to arrange the cables to enter the main guide head-turnable pulley 9 at the bottom of the platform so as to be connected with a vertical pipe head;
fifthly, the auxiliary winch can turn to the guide pulley 4 by rotating to enable the guide pulley to face to an auxiliary guide pulley 10 at the bottom of the platform, the auxiliary winch downwards arranges cables, the cables penetrate through guide holes in a top deck and a bottom deck of the lifting module and enter the auxiliary winch and can turn to the guide pulley 4, the cables are continuously arranged forwards and enter the auxiliary guide pulley 10 at the bottom of the platform, then the cables continue downwards after passing through the auxiliary guide pulley 10 at the bottom of the platform and penetrate through an auxiliary guide pulley 11 of the ship body so as to be connected with a vertical pipe head;
sixthly, the SCR laying ship lays a vertical pipe to be close to the semi-submersible production platform, an auxiliary traction cable is released from the laying ship to the semi-submersible production platform, and a cable of the main winch 2 is connected and pulled to the laying ship (the main winch 2 synchronously arranges the cable to release the cable);
connecting the cable of the main winch 2 with the vertical pipe head;
eighthly, the SCR laying ship transfers the vertical pipe by adopting a retracting winch, and the tension of the vertical pipe is transferred to a cable of a main winch 2 from the retracting winch within a set water depth range;
ninth, the connection between the winch cable and the vertical pipe head is released by an ROV;
continuously recovering the cable of the main winch 2 until the head of the vertical pipe exceeds the preset water depth of the base at the position of the vertical pipe;
eleven, a diver enters water and is connected with an auxiliary winch 3 cable and a vertical pipe head;
twelfth, slowly releasing the cable by the main winch 2, lowering the vertical pipe head, and simultaneously winding and unwinding the cable by the auxiliary winch 3 to realize the adjustment of the position of the vertical pipe head;
thirteen, when the vertical pipe head is positioned above the vertical pipe base, confirming the relative position of the vertical pipe head and the base again, and then continuing to lower the cable of the main winch 2 to realize the return connection of the vertical pipe in place;
fourteen, the connection between the cable of the main winch 2 and the cable of the auxiliary winch 3 and the riser head is released, and the cables are recovered to the lifting module 1 for the next riser tieback operation;
fifteen, repeating the sixth step to the fourteenth step to finish the tie-back operation of other stand pipes on the single side of the semi-submersible production platform;
sixthly, dismantling bolts and nuts of the lifting module 1 connected with the production platform at the elevation of the top layer, and lifting the lifting module 1 by adopting a floating crane, so as to realize dismantling and rehandling of the lifting module 1.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A tieback device suitable for mounting a hanging vertical pipe on the inner side of a semi-submersible production platform is characterized by comprising a connecting structure, wherein the connecting structure is fixed on the side edge of a lifting module, the lifting module is of a multi-layer frame structure with a top layer and a bottom layer, a main winch is fixed at the top of the top layer of the lifting module, main winch guide holes are formed in the top layer and the bottom layer of the lifting module in the vertical direction of the main winch, a main winch guide wheel is fixed at the bottom of the bottom layer, a built-in cable of the main winch sequentially penetrates through the main winch guide holes in the top layer, the main winch guide holes in the bottom layer, the main winch guide wheel and a main guide pulley, and the main guide pulley is fixed at the bottom of the production platform; the hoisting device is characterized in that a plurality of auxiliary winches are fixed at the tops of top layers of hoisting modules on two sides of the main winch, auxiliary winch guide holes are formed in the top layers and the bottom layers of the hoisting modules in the vertical direction of the auxiliary winches, auxiliary winch guide wheels are fixed at the bottoms of the bottom layers, built-in mooring ropes of the auxiliary winches sequentially penetrate through the auxiliary winch guide holes in the top layers, the auxiliary winch guide holes in the bottom layers, the auxiliary winch guide wheels, the auxiliary guide pulleys and the hull auxiliary guide wheels, the auxiliary guide pulleys are fixed at the bottom of the production platform, and the hull auxiliary guide wheels are connected with the mooring ropes in a sliding mode.
2. A tie-back device suitable for mounting a hanging riser inside a semi-submersible production platform according to claim 1, wherein the connecting structure comprises a pin connecting structure, and the pin connecting structure comprises a plurality of pin holes arranged on the same side of the top layer of the lifting module and a plurality of long and short pins arranged on the main structure of the semi-submersible production platform.
3. The tie-back device suitable for installing the inner side suspension vertical pipe of the semi-submersible production platform according to claim 1, wherein the connecting structure further comprises a bolt and nut connecting structure, and the bolt and nut connecting structure comprises a bolt, a nut, a bolt hole arranged on the same side of the bottom layer of the lifting module and a bolt hole arranged on the main structure of the semi-submersible production platform.
4. The tie-back device suitable for mounting a suspended riser inside a semi-submersible production platform as claimed in claim 1, wherein the rotation angles of the main winch guide wheel and the auxiliary winch guide wheel are both 360 °.
5. A tie-back device suitable for mounting of an inboard suspended riser of a semi-submersible production platform as claimed in claim 1, wherein the elevation between the top and bottom floors of the lifting module is the same as the elevation of the main structure of the semi-submersible production platform.
6. A tie-back arrangement for the installation of a suspended riser inside a semi-submersible production platform as claimed in claim 1 wherein the main winch is fixed centrally on top of the top deck of the hoist module.
7. A tie-back arrangement for the installation of a suspended riser inside a semi-submersible production platform as claimed in claim 1, wherein the main guide pulley is located on the extension of the riser as projected onto the production platform.
8. A tie-back arrangement for the installation of a suspended riser inside a semi-submersible production platform as claimed in claim 1 wherein the projection of the auxiliary guide pulley onto the riser is on either side of the riser extension.
9. A tie-back arrangement adapted for use in the installation of a suspended riser inside a semi-submersible production platform as claimed in claim 1, wherein the lifting module is of steel construction.
10. A tie-back arrangement adapted for inboard suspended riser installation of a semi-submersible production platform as claimed in claim 1 wherein the lifting module is of square construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531135.5A CN114852282A (en) | 2022-05-16 | 2022-05-16 | Tieback device suitable for installation of inboard suspension riser of semi-submersible production platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210531135.5A CN114852282A (en) | 2022-05-16 | 2022-05-16 | Tieback device suitable for installation of inboard suspension riser of semi-submersible production platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114852282A true CN114852282A (en) | 2022-08-05 |
Family
ID=82637828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210531135.5A Pending CN114852282A (en) | 2022-05-16 | 2022-05-16 | Tieback device suitable for installation of inboard suspension riser of semi-submersible production platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114852282A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002087959A2 (en) * | 2001-05-01 | 2002-11-07 | Drillmar, Inc. | Multipurpose unit with multipurpose tower and method for tendering with a semisubmersible |
| CN102917945A (en) * | 2010-06-02 | 2013-02-06 | 伊特里克公司 | Marine load lifting system |
| US20200378191A1 (en) * | 2017-02-21 | 2020-12-03 | Acergy France SAS | Fabrication of Pipe Bundles Offshore |
| CN113581416A (en) * | 2021-07-15 | 2021-11-02 | 中国海洋石油集团有限公司 | Tie-back device for installing multiple steel catenary risers on single side |
| CN113581417A (en) * | 2021-07-20 | 2021-11-02 | 海洋石油工程股份有限公司 | Tieback lifting method and lifting system for mounting semi-submersible production platform vertical pipe |
-
2022
- 2022-05-16 CN CN202210531135.5A patent/CN114852282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002087959A2 (en) * | 2001-05-01 | 2002-11-07 | Drillmar, Inc. | Multipurpose unit with multipurpose tower and method for tendering with a semisubmersible |
| CN102917945A (en) * | 2010-06-02 | 2013-02-06 | 伊特里克公司 | Marine load lifting system |
| US20200378191A1 (en) * | 2017-02-21 | 2020-12-03 | Acergy France SAS | Fabrication of Pipe Bundles Offshore |
| CN113581416A (en) * | 2021-07-15 | 2021-11-02 | 中国海洋石油集团有限公司 | Tie-back device for installing multiple steel catenary risers on single side |
| CN113581417A (en) * | 2021-07-20 | 2021-11-02 | 海洋石油工程股份有限公司 | Tieback lifting method and lifting system for mounting semi-submersible production platform vertical pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7083004B2 (en) | Cantilevered multi purpose tower and method for installing drilling equipment | |
| US6871609B2 (en) | Multipurpose tower for monohull | |
| US7452162B2 (en) | Method of installation of a tension leg platform and tendons therefor | |
| WO2017173934A1 (en) | Self-elevating submersible underwater working platform and usage thereof | |
| US9856703B2 (en) | Drilling rig arrangement | |
| EP0976676B1 (en) | Deep water lowering apparatus | |
| US4436451A (en) | Self-standing marine riser | |
| CN113581416B (en) | Tie-back device for installing multiple steel catenary risers on single side | |
| CN113581417A (en) | Tieback lifting method and lifting system for mounting semi-submersible production platform vertical pipe | |
| JPS61137910A (en) | Method and device for handling boring device for deck elevating type offshore working platform | |
| CN114852282A (en) | Tieback device suitable for installation of inboard suspension riser of semi-submersible production platform | |
| KR20180042940A (en) | Cradle seated thruster propeller fixing part and method of lifting the fixing part | |
| CN216546599U (en) | A hang and put device that is used for coastal waters geotechnical engineering shipborne reconnaissance to equip | |
| CN113879487B (en) | Non-self-floating immersed tube discharging method | |
| CA2330559A1 (en) | Semi-submersible vessel | |
| CN114872860A (en) | Large-tension tie-back device suitable for semi-submersible production platform steel catenary riser | |
| CN112498622B (en) | Pile foundation installation method of deepwater ocean platform | |
| NO20170862A1 (en) | A mooring system | |
| CN112061335A (en) | Protection device capable of lifting and preventing scouring in semi-submersible barge bottom-setting construction and construction method | |
| CN218117713U (en) | Direct-drive seabed base plate with heave surge compensation function | |
| CN218141995U (en) | Gravity press-in type anchoring device for deep-sea dual-gradient drilling system | |
| CN219280659U (en) | Seawater lifting device | |
| GB2132670A (en) | Installation and levelling of subsea templates | |
| CN109422200B (en) | Installation method of tensioning hydraulic cylinder of drilling platform marine riser | |
| CA1212100A (en) | Method of installing, levelling and securing a subsea template |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |