CN116750137A - Semi-submersible production platform mooring anchor chain transfer and tieback method - Google Patents

Semi-submersible production platform mooring anchor chain transfer and tieback method Download PDF

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Publication number
CN116750137A
CN116750137A CN202310480783.7A CN202310480783A CN116750137A CN 116750137 A CN116750137 A CN 116750137A CN 202310480783 A CN202310480783 A CN 202310480783A CN 116750137 A CN116750137 A CN 116750137A
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CN
China
Prior art keywords
chain
semi
production platform
rigging
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
Application number
CN202310480783.7A
Other languages
Chinese (zh)
Inventor
林守强
汪智峰
叶永彪
刘作榆
杨盛
孙锟
高超
林建宇
张凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cnooc Shenzhen Ocean Engineering Technology Service Co ltd
Original Assignee
Cnooc Shenzhen Ocean Engineering Technology Service Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cnooc Shenzhen Ocean Engineering Technology Service Co ltd filed Critical Cnooc Shenzhen Ocean Engineering Technology Service Co ltd
Priority to CN202310480783.7A priority Critical patent/CN116750137A/en
Publication of CN116750137A publication Critical patent/CN116750137A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/16—Tying-up; Shifting, towing, or pushing equipment; Anchoring using winches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/18—Stoppers for anchor chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/22—Handling or lashing of anchors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B2021/505—Methods for installation or mooring of floating offshore platforms on site

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention discloses a semi-submersible production platform mooring anchor chain transfer and tieback method, which comprises the following steps: s1, transmitting an information chain temporarily suspended and fixed on a semi-submersible production platform to a platform crane by using the semi-submersible production platform crane; s2, fishing a mooring anchor chain wet at the sea bottom by the working ship, entering the working radius range of the semi-submersible production platform crane, and keeping a certain safe working distance with the platform; s3, the semi-submersible production platform crane transmits the information chain to the operation ship; s4, connecting a mooring anchor chain and an information chain together on a deck of the operation ship through mounting chain rings; s5, the operation ship uses a towing winch to lower a mooring anchor chain after connection is completed, and the semi-submersible production platform anchor machine synchronously recovers an information chain; s6, continuously recovering the information chain and the mooring anchor chain by the semi-submersible platform anchor machine until the mooring anchor chain is recovered to the designed position, and locking by using a chain stopper. The engineering ship and the semi-submersible platform are matched with each other, so that the transmission and tie-back of the mooring anchor chain can be safely and efficiently carried out.

Description

Semi-submersible production platform mooring anchor chain transfer and tieback method
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a semi-submersible production platform mooring anchor chain transmission and tieback method.
Background
Along with the gradual trend of ocean oil and gas resource development to deep water, the application of a floating production device and a mooring system is gradually matured, the floating production device has obvious advantages in economy and reliability, a semi-submersible production platform is one of main types of deep-sea floating production devices, and the semi-submersible production platform has the advantages of wide applicable working water depth range, large deck area, good motion performance, portability, reusability and the like, and after the semi-submersible production platform is towed to an oil and gas field, the tieback work of a platform mooring anchor chain needs to be completed in a shortest weather window, and the semi-submersible production platform is moored at the sea surface so as to ensure the safety of the platform.
Disclosure of Invention
The invention aims to provide a semi-submersible production platform mooring anchor chain transfer and tieback method, which is characterized in that an engineering ship is matched with a semi-submersible platform, so that the transfer and tieback of the mooring anchor chain can be safely and efficiently carried out.
In order to achieve the purpose of the invention, the invention provides a semi-submersible production platform mooring anchor chain transmission and tieback method, which comprises the following steps:
s1, transmitting an information chain temporarily suspended and fixed on a semi-submersible production platform to a platform crane by using the semi-submersible production platform crane;
s2, fishing a mooring anchor chain wet at the sea bottom by the working ship, entering the working radius range of the semi-submersible production platform crane, and keeping a certain safe working distance with the platform;
s3, the semi-submersible production platform crane transmits the information chain to a working ship;
s4, connecting the mooring anchor chain and the information chain together on a deck of the operation ship through mounting chain rings;
s5, the operation ship uses a towing winch to lower the mooring anchor chain after connection is completed, and the semi-submersible production platform anchor machine synchronously recovers the information chain;
and S6, continuously recovering the information chain and the mooring anchor chain by the semi-submersible platform anchor machine until the mooring anchor chain is recovered to the designed position, and locking by using a chain stopper.
As a preferred technical solution of the present invention, in step S1, the semi-submersible production platform operates a platform crane, a crane hook is swung to the mooring anchor chain operation side deck, a platform crane extension rigging is installed, a platform operator connects the crane extension rigging to one end of the information chain outside the operation deck, and the other end of the information chain is in power connection with the semi-submersible production platform anchor.
As a preferable technical scheme of the invention, a section of information chain transmission rigging is arranged between the information chain and the crane extension rigging.
As a preferred technical scheme of the invention, in step S2, the working vessel salvages the mooring anchor chain wet at the sea bottom, moves the vessel to the semi-submersible production platform side, enters the working radius range of the semi-submersible production platform crane, and maintains a safe working distance of 15m with the semi-submersible production platform.
As a preferred embodiment of the present invention, in step S3, the method includes: s31, swinging out the suspension arm of the semi-submersible production platform crane, transmitting the information chain transmission rigging to a deck of a working ship, and synchronously lowering the information chain by the semi-submersible production platform crane; s32, connecting a towing winch steel cable of the working ship to the information chain transmission rigging by deck constructors; s33, after the working ship tows winch belt force and the platform crane unloads force, deck constructors dismantle the connection between the crane extension rigging and the information chain transmission rigging, and the platform crane recovers the crane extension rigging; s34, the working ship uses a towing winch working cable to recycle the information chain transmission rigging, and the semi-submersible production platform anchor machine synchronously lowers the information chain; and S35, locking the information chain by using the shark pincers on the working ship deck until the information chain is recovered to the working ship deck, and removing all rigging on the information chain.
As a preferred solution of the invention, in step S4, a chain lowering rigging is installed at the junction of the mooring chain and the information chain, said chain lowering rigging being dynamically connected to the working vessel towing winch working cable.
As a preferred technical solution of the present invention, in step S5, the working vessel towing winch releases the connected mooring chain, information chain and chain-lowering rigging, and moves the vessel in the direction of the semi-submersible production platform in synchronization, the semi-submersible production platform anchor machine recovers the information chain in synchronization, and when the load of the mooring chain is transferred from the chain-lowering rigging to the information chain in total, the ROV unhooks the chain-lowering rigging, and the working vessel towing winch working cable recovers the chain-lowering rigging.
As a preferred solution of the present invention, in step S6, the production platform anchor continues to retrieve the information chain and the mooring chain until the 10 th link of the mooring chain passes the chain stopper, which locks.
Compared with the prior art, the invention provides a semi-submersible production platform mooring anchor chain transfer and tieback method, which has the following beneficial effects:
the method of the invention comprises the following steps: using a semi-submersible production platform crane to transfer an information chain temporarily suspended and fixed on the semi-submersible production platform to the platform crane; the working ship salvages a mooring anchor chain which is wet at the sea bottom, enters the working radius range of the semi-submersible production platform crane and keeps a certain safe working distance with the platform; the semi-submersible production platform crane transmits the information chain to the operation ship; connecting mooring anchor chains and information chains together on a deck of the working vessel through mounting chain rings; the operation ship uses a towing winch to lower a mooring anchor chain after connection is completed, and the semi-submersible production platform anchor machine synchronously recovers an information chain; the semi-submersible platform anchoring machine continues to recover the information chain and the mooring anchor chain until the mooring anchor chain is recovered to the design position and locked by the chain stopper. The semi-submersible production platform mooring anchor chain transfer and tieback method can realize safe and efficient transfer and tieback operation of the engineering ship and the semi-submersible production platform, and provides guarantee for offshore installation of the semi-submersible production platform mooring anchor chain.
Drawings
FIG. 1 is a schematic view of a field arrangement of the present invention;
FIG. 2 is a schematic illustration of the mooring chain and information chain connection of the present invention;
FIG. 3 is a schematic flow chart of the work vessel lowering of the chain lowering rigging of the present invention;
fig. 4 is a schematic view of the release of the mooring line according to the invention.
1 is an information chain, 2 is a mooring anchor chain, 3 is a crane extension rigging, 4 is an information chain transmission rigging, and 5 is an anchor chain lowering rigging.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, an embodiment of the present invention provides a semi-submersible production platform mooring anchor chain transfer and tieback method, comprising the steps of:
s1, transmitting an information chain 1 temporarily suspended and fixed on a semi-submersible production platform to a platform crane by using the semi-submersible production platform crane;
s2, the operation ship salvages a mooring anchor chain 2 which is wet at the sea bottom, enters the operation radius range of the semi-submersible production platform crane and keeps a certain safe operation distance with the platform;
s3, the semi-submersible production platform crane transmits the information chain 1 to a working ship;
s4, connecting the mooring anchor chain 2 and the information chain 1 together through mounting chain rings on a deck of a working ship;
s5, the operation ship uses a towing winch to lower the mooring anchor chain 2 after connection is completed, and the semi-submersible production platform anchor machine synchronously recovers the information chain 1;
s6, the semi-submersible platform anchor machine continues to recover the information chain 1 and the mooring anchor chain 2 until the mooring anchor chain 2 is recovered to a designed position, and is locked by a chain stopper.
In one embodiment of the invention, in step S1, the semi-submersible production platform operates a platform crane, a crane hook is swung to the working side deck of the mooring anchor chain 2, a platform crane extension rigging 3 is installed, a platform operator connects the crane extension rigging 3 to one end of the information chain 1 outside the working deck, and the other end of the information chain 1 is in power connection with the semi-submersible production platform anchor.
In one embodiment of the invention, a piece of information chain transmission rigging 4 is arranged between the information chain 1 and the crane extension rigging 3.
In one embodiment of the invention, in step S2, the working vessel salvages said mooring anchor chain 2 wet to the sea bottom, moves the vessel sideways towards the semi-submersible production platform, enters the semi-submersible production platform crane working radius range, and maintains a safe working distance of 15m from the semi-submersible production platform.
In one embodiment of the present invention, in step S3, it includes: s31, swinging out a suspension arm of a semi-submersible type production platform crane, transmitting the information chain transmission rigging 4 to a deck of a working ship, and synchronously lowering the information chain 1 by the semi-submersible type production platform crane; s32, connecting a towing winch steel cable of the working ship to the information chain transmission rigging 4 by deck constructors; s33, after the working ship tows winch belt force and the platform crane unloads force, deck constructors dismantle the connection between the crane extension rigging 3 and the information chain transmission rigging 4, and the platform crane recovers the crane extension rigging 3; s34, the working ship uses a towing winch working cable to recycle the information chain transmission rigging 4, and the semi-submersible production platform anchor machine synchronously lowers the information chain 1; and S35, locking the information chain 1 by using a shark jaw on the working ship deck until the information chain 1 is recovered to the working ship deck, and dismantling all rigging on the information chain 1.
In one embodiment of the invention, in step S4, a chain lowering rigging 5 is installed at the junction of the mooring chain 2 and the information chain 1, the chain lowering rigging 5 being dynamically connected to a work vessel towing winch work cable.
In one embodiment of the invention, in step S5, the work vessel haulage winch unwinds the connected mooring hawser 2, the information chain 1 and the hawser 5, simultaneously moves the vessel in the direction of the semi-submersible production platform, the semi-submersible production platform anchor simultaneously retrieves the information chain 1, the ROV unhook the hawser 5 when the load of the mooring hawser 2 is all transferred from the hawser 5 to the information chain 1, and the work vessel haulage winch working cable retrieves the hawser 5.
In one embodiment of the invention, in step S6, the production platform anchor continues to retrieve the information chain 1 and the mooring chain 2 until the 10 th link of the mooring chain 2 passes the chain stopper, which locks.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.

Claims (8)

1. The semi-submersible production platform mooring anchor chain transferring and tieback method is characterized by comprising the following steps of:
s1, using a semi-submersible production platform crane to transfer an information chain (1) temporarily suspended and fixed on the semi-submersible production platform to the platform crane;
s2, a working ship salvages a mooring anchor chain (2) which is wet at the sea bottom, enters the working radius range of a semi-submersible production platform crane and keeps a certain safe working distance with the platform;
s3, the semi-submersible production platform crane transmits the information chain (1) to a working ship;
s4, connecting the mooring anchor chain (2) and the information chain (1) together through mounting chain rings on a deck of a working ship;
s5, the operation ship uses a towing winch to lower the mooring anchor chain (2) after connection is completed, and the semi-submersible production platform anchor machine synchronously recovers the information chain (1);
s6, continuously recovering the information chain (1) and the mooring anchor chain (2) by the semi-submersible platform anchor machine until the mooring anchor chain (2) is recovered to a designed position, and locking by using a chain stopper.
2. A semi-submersible production platform mooring line transfer and tieback method as recited in claim 1 wherein:
in step S1, a semi-submersible production platform operates a platform crane, a crane hook is swung to a working side deck of a mooring anchor chain (2), a platform crane extension rigging (3) is installed, a platform operator connects the crane extension rigging (3) to one end of an information chain (1) at the outer side of the working deck, and the other end of the information chain (1) is in power connection with the semi-submersible production platform anchor.
3. A semi-submersible production platform mooring line transfer and tieback method as recited in claim 2 wherein:
and a section of information chain transmission rigging (4) is arranged between the information chain (1) and the crane extension rigging (3).
4. A semi-submersible production platform mooring line transfer and tieback method as recited in claim 1 wherein:
in step S2, the operation ship salvages the mooring anchor chain (2) wet at the sea bottom, moves the ship to the semi-submersible production platform side, enters the operation radius range of the semi-submersible production platform crane, and keeps a safe operation distance of 15m from the semi-submersible production platform.
5. A semi-submersible production platform mooring line transfer and tieback method as recited in claim 3 wherein:
in step S3, it includes: s31, swinging out the suspension arm of the semi-submersible production platform crane, transmitting the information chain transmission rigging (4) to a deck of a working ship, and synchronously lowering the information chain (1) by the semi-submersible production platform crane; s32, connecting a towing winch steel cable of the working ship to the information chain transmission rigging (4) by deck constructors; s33, after the working ship tows winch belt force and the platform crane unloads force, deck constructors dismantle the connection between the crane extension rigging (3) and the information chain transmission rigging (4), and the platform crane recovers the crane extension rigging (3); s34, the working ship uses a towing winch working cable to recycle the information chain transmission rigging (4), and the semi-submersible production platform anchor machine synchronously lowers the information chain (1); s35, until the information chain (1) is recovered to a working ship deck, locking the information chain (1) by using a working ship deck shark pincers, and removing all rigging on the information chain (1).
6. A semi-submersible production platform mooring line transfer and tieback method as recited in claim 1 wherein:
in step S4, a chain lowering rigging (5) is installed at the junction of the mooring chain (2) and the information chain (1), the chain lowering rigging (5) being dynamically connected to a work vessel towing winch work cable.
7. A semi-submersible production platform mooring line transfer and tieback method as recited in claim 6 wherein:
in step S5, the mooring chain (2), the information chain (1) and the chain lowering rigging (5) are connected, the ship is synchronously moved towards the semi-submersible production platform, the semi-submersible production platform anchor machine synchronously recovers the information chain (1), when the load of the mooring chain (2) is completely transferred from the chain lowering rigging (5) to the information chain (1), the ROV unhook the chain lowering rigging (5), and the chain lowering rigging (5) is recovered by the working ship towing winch working cable.
8. A semi-submersible production platform mooring line transfer and tieback method as recited in claim 1 wherein:
in step S6, the production platform anchor continues to retrieve the information chain (1) and the mooring anchor chain (2) until the 10 th link of the mooring anchor chain (2) passes the chain stopper, which locks.
CN202310480783.7A 2023-04-28 2023-04-28 Semi-submersible production platform mooring anchor chain transfer and tieback method Pending CN116750137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310480783.7A CN116750137A (en) 2023-04-28 2023-04-28 Semi-submersible production platform mooring anchor chain transfer and tieback method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310480783.7A CN116750137A (en) 2023-04-28 2023-04-28 Semi-submersible production platform mooring anchor chain transfer and tieback method

Publications (1)

Publication Number Publication Date
CN116750137A true CN116750137A (en) 2023-09-15

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ID=87956006

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310480783.7A Pending CN116750137A (en) 2023-04-28 2023-04-28 Semi-submersible production platform mooring anchor chain transfer and tieback method

Country Status (1)

Country Link
CN (1) CN116750137A (en)

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