KR20170028649A - Drilling offshore structure having support barge ship and operation method of the drilling offshore structure - Google Patents

Drilling offshore structure having support barge ship and operation method of the drilling offshore structure Download PDF

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Publication number
KR20170028649A
KR20170028649A KR1020150125517A KR20150125517A KR20170028649A KR 20170028649 A KR20170028649 A KR 20170028649A KR 1020150125517 A KR1020150125517 A KR 1020150125517A KR 20150125517 A KR20150125517 A KR 20150125517A KR 20170028649 A KR20170028649 A KR 20170028649A
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KR
South Korea
Prior art keywords
drilling
semi
line
support line
support
Prior art date
Application number
KR1020150125517A
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Korean (ko)
Inventor
류민철
Original Assignee
대우조선해양 주식회사
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Priority to KR1020150125517A priority Critical patent/KR20170028649A/en
Publication of KR20170028649A publication Critical patent/KR20170028649A/en

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    • 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
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
    • 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
    • B63B35/28—Barges or lighters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • B63B59/02—Fenders integral with waterborne vessels or specially adapted therefor, e.g. fenders forming part of the hull or incorporated in the hull; Rubbing-strakes

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Earth Drilling (AREA)

Abstract

The present invention relates to an offshore drilling structure having a drilling support barge and a method of operating the offshore drilling structure having the drilling support barge. The offshore drilling structure includes a barge-type offshore support vessel that is semi-submersible through ballasting, wherein the barge-type offshore support vessel has a structure capable of storing a BOP stack including a drilling pipe and a riser and moves to a semi rig vessel carrying the equipment therein before drilling to provide the equipment for drilling. Therefore, it can be easy to arrange the semi rig vessel and a topside module, making design and construction relatively easier. In addition, it is possible to manage risk in a distributed manner by separately operating the semi rig vessel and a drilling support vessel.

Description

Technical Field [0001] The present invention relates to a drilling method, and more particularly, to a drilling method, a drilling method, a drilling method, and a drilling method,

The present invention relates to a method of operating a drilling operation pre-mounted drilling offshore structure and a pre-drilled drilling operation, and more particularly, to a method of operating a semi-submersible drilling operation through a ballasting offshore support vessel. The drilling work support line can store the BOP stack including the drilling pipe and riser. Before drilling, this equipment is loaded and moved to the semi rig vessel, And a method of operating an offshore drilling offshore structure supporting the drilling operation.

Semi-Submersible Drilling Rig is a drilling rig intended to drill crude oil and gas beneath the seabed.

Semi-submersible drilling rig maintains its position by automatic position control system (Dynamic Positioning System), so it has high stability in drilling operation and drilling operation is possible in deep and rough sea.

In recent years, drilling facilities such as semi-submersible drilling rigs are used to develop the deep water field, and the maximum depth of drilling and maximum drilling depth are gradually increasing.

1 is a perspective view showing a conventional semi-submersible drilling rig.

1, the conventional semi-submersible drill ship is constructed of a pontoon 1 for forming buoyancy and various equipment necessary for drilling installed on the upper part of the pontoon 1, A plurality of columns 3 for connecting the pontoon 1 and the upper deck 2 and an upper deck 2 provided on the upper part of the doorpath to form the upper deck 2. [ Derrick < RTI ID = 0.0 > (4). ≪ / RTI >

The derrick 4 is formed in a truss structure and includes a drilling pipe installed in the drilling hole during drilling operation and a casing which is a pipe installed around the drilling hole to prevent the ground from collapsing during drilling operation casing and a riser, a series of pipes installed between the submarine and semi-submersible drilling rigs.

However, in the conventional drill ship, all the drilling equipment including the riser is placed on the main line and used for drilling, so that it is necessary to arrange a plurality of equipment in a narrow space, and the payload is greatly restricted.

In addition, it causes complexity in designing and construction. The support line to support the material needs to be operated separately, and there is a problem in that it is accompanied with operational risk due to a marine work line equipped with expensive equipment.

Korean Patent Publication No. 10-2015-0092501 Korean Patent No. 10-20130051311

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a semi-submersible barge type offshore support vessel through ballasting, This allows the semi-rig and top-side module placement to be maintained by allowing the equipment to be transported to the semi-rig vessel before drilling to provide equipment related to drilling. It is easy to design and dry. It has the advantage of semi-rigging operation and drilling operation support operation separately. Therefore, drilling operation can be distributed to manage the risks that may occur during the drilling process. And to provide a method of operating an offshore drilling offshore structure supporting the drilling operation of an offshore structure.

To achieve the above object, the present invention provides a semi-rig main line having a pontoon, a column, a main deck, and a derrick; And a drilling operation support line provided at a lower portion of the main deck and having a space for storing a drilling pipe, a riser, and a BOP stack at an upper portion of the drilling operation supporting line.

The drilling support line may be of a barge type.

Fenders may be installed on both sides of the drilling support line to prevent collision with the semi-rig main line.

The semifinished main stream line and the drilling work support line are vertically connected to each other.

In the meantime, according to the present invention, there is provided a drilling operation support line-mounted drilling and offshore structure including a semi-league main line and a drilling support line provided below the semi-league main line and capable of storing a drilling pipe, a riser, Wherein the semigliptine main line is separated from the drilling support line during a drilling process and the drilling pipe and the riser are controlled by the drilling support line. to provide.

The drilling pipe and the riser are stored in a drilling support line and are put into the sea floor by drilling equipment installed in the derrick during drilling operation.

As described above, the present invention has a semi-submersible drilling support line through ballasting, the drilling work support line is a structure capable of storing a BOP stack including a drill pipe and a riser, By loading equipment and moving to semi-rig vessels to provide equipment related to drilling, it is easy to place semi-rigid and topside modules and is relatively easy to design and dry. payload.

In addition, since the semi-league main line operation and the drilling operation support line operation are separately performed, it is possible to distribute and manage risks that may arise in the event of an emergency.

1 is a perspective view showing a conventional semi-
2 is a side view showing a conventional semi-
FIG. 3 is a side view showing the drilling-off-type drilling offshore structure of the present invention
4 is a plan view showing the drilling work support line of the present invention.

Hereinafter, with reference to the accompanying drawings, a detailed description will be given of a method for operating a drilling operation supported ship type pre-installed drilling type offshore structure and a method for operating a pre-loaded type drilling type offshore structure according to the present invention.

FIG. 3 is a side view showing a drilling operation supporting ship-type drilling operation supporting structure of the present invention, and FIG. 4 is a plan view showing a drilling operation supporting line of the present invention.

3 and 4, the present invention relates to a structure capable of storing a BOP stack including a drill pipe and a riser, with a semi-submergible barge type offshore support vessel 120 through ballasting And by moving these equipment to a semi rig vessel 110 prior to drilling to provide equipment related to drilling to create a new concept of drilling rig that does not have to carry these drilling related equipment on the semi- .

The existing space where the drilling pipe and riser is loaded in the semi rig vessel (110) can be utilized as other equipment and service space.

More particularly, the present invention provides a semi-rig line 110 having a pontoon 111, a column 112, a main deck 113, and a derrick 114; And a drilling support line 120 located below the main deck 113 and having a space 121 in which a drilling pipe, a riser, and a BOP stack can be stored. Thereby providing the structure 100.

The drilling work support line 120 may be constructed in the form of pants. The shape of the drilling work support line 120 is not limited to the barge line but may be manufactured in various forms depending on the site construction conditions. The drilling work support line 120 includes a balancing unit 122 for semi-submersion through ballasting.

The ballasting unit includes ballasting tanks, ballasting pumps, piping and valves for ballasting and unbalancing.

The drilling work supporting line 120 is formed in a structure in which a drum M 2 is formed in the hull and a drill pipe, riser, LMRP, BOP,

It is possible to stop drilling in the event of drilling, to support drilling pipe, riser instead of drilling, and to mount Heave & riser compensator.

Fenders F may be installed on both sides of the drilling support line 120 to prevent collision with the semi-

The drum unit M 1 of the semi-league main line 110 and the drum unit M 2 of the drilling support line 120 are connected to each other in a vertical direction. The drill pipe and the riser are connected to drilling equipment And may be configured to be submarine.

The semigliptive main line 110 is separated from the drilling support line 120 and the drilling pipe and the riser are controlled by the drilling support line 120 during a drilling process.

In the meantime, according to the present invention, there is provided a semi-rigid main line 110 and a drilling operation support line (hereinafter, referred to as " drilling operation support line ") having a space 121, The drilling pipe and the riser are separated from the drilling support line 120 and the drilling pipe 120 and the drilling pipe 120 are separated from the drilling support line 120. In this case, ) To support the drilling operation. It provides the operation method of the pre-drilled drilling offshore structure.

The drilling pipe and the riser are stored in the drilling work support line 120 and put into the seabed by drilling equipment installed in the derrick 114 during drilling operation.

As described above, the present invention provides a structure capable of storing a BOP stack including a drill pipe and a riser, with a semi-submersible barge type offshore support vessel through ballasting, By loading these equipment and moving to semi-rig vessels to provide equipment related to drilling, it is easy to place semi-rig and top-side modules, and is relatively easy to design and dry There is an advantage, and the payload increases.

In addition, since the semi-league main line operation and the drilling operation support line operation are separately performed, it is possible to distribute and manage risks that may arise in the event of an emergency.

100: Support drilling operation Pre-mounted drilling marine structure
110: Semi-rig vessel
111: pontoon
112: Column
113: Main deck
114: Derrick
120: barge type offshore support vessel
121: Space section
122: Balusting unit
F: Fender
M 1:
M 2:

Claims (6)

A semi-league main line with a pontoon, a column, a main deck, and a derrick; And
And a drilling support line located at a lower portion of the main deck and having a space for storing a drilling pipe, a riser, and a BOP stack at an upper portion of the drilling support line. The method according to claim 1,
Wherein the drilling support line is constructed in the form of pants. The method according to claim 1,
Wherein a fender is installed on both sides of the drilling support line to prevent collision with the semi-league main line. The method according to claim 1,
Wherein the semifinished flywheel and the drill work support line are vertically connected to each other. A semi-rig main line and a drilling work support line with a space for storing a drilling pipe, a riser, and a BOP stack at the upper part of the semi-league main line. Wherein the semigliptive main line is separated from the drilling support line and the drilling pipe and the riser are controlled by the drilling support line. The method of claim 5,
Wherein the drilling pipe and the riser are stored in a drilling support line and are introduced into a seabed by a drilling equipment installed in the derrick during a drilling operation.
KR1020150125517A 2015-09-04 2015-09-04 Drilling offshore structure having support barge ship and operation method of the drilling offshore structure KR20170028649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150125517A KR20170028649A (en) 2015-09-04 2015-09-04 Drilling offshore structure having support barge ship and operation method of the drilling offshore structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150125517A KR20170028649A (en) 2015-09-04 2015-09-04 Drilling offshore structure having support barge ship and operation method of the drilling offshore structure

Publications (1)

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KR20170028649A true KR20170028649A (en) 2017-03-14

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130051311A (en) 2011-11-09 2013-05-20 삼성중공업 주식회사 Semisubmersible drilling rig
KR20150092501A (en) 2014-02-05 2015-08-13 대우조선해양 주식회사 Arrangement scheme of living quarter in semi-submersible drilling rig

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130051311A (en) 2011-11-09 2013-05-20 삼성중공업 주식회사 Semisubmersible drilling rig
KR20150092501A (en) 2014-02-05 2015-08-13 대우조선해양 주식회사 Arrangement scheme of living quarter in semi-submersible drilling rig

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