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WO2012036630A1 - Console surélevée pour accès facile (rcea) utilisée sur les installations de forage à élévation automatique (secteur de l'énergie en haute mer) - Google Patents

Console surélevée pour accès facile (rcea) utilisée sur les installations de forage à élévation automatique (secteur de l'énergie en haute mer) Download PDF

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Publication number
WO2012036630A1
WO2012036630A1 PCT/SG2010/000411 SG2010000411W WO2012036630A1 WO 2012036630 A1 WO2012036630 A1 WO 2012036630A1 SG 2010000411 W SG2010000411 W SG 2010000411W WO 2012036630 A1 WO2012036630 A1 WO 2012036630A1
Authority
WO
WIPO (PCT)
Prior art keywords
cantilever
rig
rcea
elevating drilling
main deck
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.)
Ceased
Application number
PCT/SG2010/000411
Other languages
English (en)
Other versions
WO2012036630A9 (fr
Inventor
Khim Kiong Ng
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2012036630A1 publication Critical patent/WO2012036630A1/fr
Anticipated expiration legal-status Critical
Publication of WO2012036630A9 publication Critical patent/WO2012036630A9/fr
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/006—Platforms with supporting legs with lattice style supporting legs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0082—Spudcans, skirts or extended feet

Definitions

  • This invention relates to an arrangement of an apparatus so as to improve personnel access to and from either side of this apparatus during its operation.
  • Such an apparatus is normally called the cantilever of a self-elevating drilling rig used in the offshore energy sector.
  • This invention is applicable to self elevating drilling rigs, non-drilling platforms or vessels in offshore applications. Fundamentally, it is innovative in idea enabling personnel access from either side of the apparatus (or cantilever) so as to significantly improve operational efficiency of the drilling rig.
  • RCEA Remote Cantilever for Easy Access
  • the conventional arrangement of similar cantilevers found in self-elevating drilling rigs is not raised to a point which allows easy personnel movements between both sides of the rig.
  • Another added feature of this invention of arrangement is that it creates more space below the cantilever for installations of deck items including ventilators which otherwise are required to be placed at the sides of the rig.
  • the ventilators when properly arranged and located below the cantilever, in turn can provide an air draft that can enhance safety aspect of ventilation at the drill floor and BOP (blow out preventer) vicinity.
  • FIG. 1 A typical cantilever on a self-elevating drilling rig is depicted in figure 1. The following terminologies common in a drilling rig are defined for the better understanding of the application of the invention.
  • Cantilever is a common feature of self-elevating drilling rigs, while not so common on vessels or offshore platforms. Its purpose is to carry the drill floor located above it at the aft-end and move the drill floor over a drilling area envelope described by the cantilever and drill floor movements. The cantilever moves longitudinally whereas the drill floor moves transversely.
  • the cantilever is normally located low close to the main deck of the hull body (see figure 1).
  • the clearance between cantilever and hull main deck is normally between 0.8- 1.2m in height or thereabout. Since the cantilever, in its stowed position takes up quite a long and central area of the hull, personnel or man-handled materials crossing between port and starboard sides of the rig is relatively ineffective and requires a person or the material to move forward, turn around the forward end of the cantilever and reach back to other side of the hull. Even when the cantilever extends aft-ward, there is still this blockage of access between port/starboard sides.
  • the long and central space occupied by the cantilever close to main deck takes away valuable space for deck outfits (air vents, sounding heads, remote-operated valve deck handles, ventilators etc.) which are pushed to the sides when they could be installed in the middle portion of the rig.
  • deck outfits air vents, sounding heads, remote-operated valve deck handles, ventilators etc.
  • the background of the Invention lies in a re-arrangement of the components by raising the cantilever vertically up to a suitable height from the main deck thus allowing better and easier access of personnel reaching from one side of the rig to the other side (see figure 2). At the same time, it creates more deck space for outfits to be installed in the central portion of the rig.
  • First significant difference and substantial advantage of the present invention is that the Raised Cantilever for Easy Access (RCEA) provides for better movement of personnel between port and starboard sides of the rig.
  • RCEA Raised Cantilever for Easy Access
  • Second significant difference and substantial advantage of the present invention is that RCEA frees the central portion deck space allowing outfits to be located and operated in relation to tanks or space directly below the deck (eg. Air vent, sounding pipe, remote-operated valve deck handle, ventilator etc.). This has cost and space savings impact.
  • a third significant difference and substantial advantage of the present invention is that if the ventilators are arranged for natural exhaust as is the case if the exhaust ventilator is directly above the compartment below, cost savings from eliminating the necessity to provide forced exhaust is achieved. At the same time, a stream of exhaust air below the cantilever can be directed toward the aft-end of the rig thus reducing or preventing any hazardous or toxic gases to flow forward to living quarters.
  • a fourth significant difference and substantial advantage of the present invention is that the raised cantilever results in more air gap from sea level. Without further raising the hull, the cantilever can be made to reach over a production platform to perform work-over activities.
  • a RCEA arrangement optimizes apparatus-rig (or vessel or platform) engagement utilization. As a result, operational efficiency is improved.
  • the objective of the invention is to provide an innovative, improved and alternative arrangement for ease of personnel and material access and movement between port and starboard of the rig, along with which comes other usefulness as mentioned in the preceding chapter.
  • the RCEA arrangement design will obviate or mitigate the aforementioned situation of less operational efficiency, lack of usage optimization and space sharing, or one which will at least provide the public with a useful, operationally more effective and cost saving choice.
  • the RCEA works on rearranging certain components thus elevating the whole cantilever vertically and creating space below the cantilever for useful operational advantages.
  • Both the 'push-up' and 'hold-down' structures are reinforced and increased in height so that the whole cantilever when supported is about 2m to 3m above the main deck of the rig. In other words, the cantilever will operate at this height from the main deck in all positions when it moves longitudinally (see figure 2)
  • the raising of the cantilever is done purposely so as to achieve some advantageous results.
  • the raised cantilever provides better movement of personnel between port and starboard sides of the rig. 2.
  • the raised cantilever frees the central portion deck space allowing outfits to be located and yet attend-able by men for maintenance or during operation.
  • ventilators can be located and if the ventilators are arranged for natural exhaust as is the case if the exhaust ventilator is directly above the compartment below, cost savings from eliminating the necessity to provide forced exhaust is achieved.
  • a stream of exhaust air below the cantilever can be directed toward the aft-end of the rig thus reducing or preventing any hazardous or toxic gases to flow forward to living quarters.
  • the raised cantilever results in more air gap from sea level and without further raising the hull, the cantilever can be made to reach over production platform easier in performing work-over activities.
  • Ventilators for Natural exhaust ventilators can Ventilators for compartments compartments now be used and this reduces the directly below cantilever need directly below can number of forced ventilators to be routed to rig sides and be installed in this required (forced supply and forced ventilators (forced central deck space natural exhaust) supply and forced exhaust) must be used and this increases cost.
  • Exhaust ventilators can Cellar deck hazardous or arranged in central provide a strong air draft and toxic gases, when present, deck space when directed aft-ward, it can move forward into improve ventilation around BOP cantilever and forward to and cellar deck area. Hazardous living quarters.
  • cantilever air-gap 2m-3m from main deck provides the rig will have to have more from sea level the additional air gap for the hull air gap exposing the rig cantilever to work over to more environmental loads production platform without

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne une console surélevée pour accès facile (RCEA) consistant en un nouveau concept qui permet et améliore l'accès du personnel ou des matériaux manutentionnés depuis ou vers un côté quelconque de la console sur des installations de forage à élévation automatique, des plateformes ou des navires utilisés dans l'industrie du gaz et du pétrole. Cette idée, de par une réorganisation physique spécifique des composants en jeu, est unique et innovante par rapport aux consoles conventionneller que l'on trouve dans des installations de forage à élévation automatique et apporte plusieurs avantages afin d'améliorer l'efficacité de fonctionnement de l'installation. Les schémas sur lesquels s'appuient les explications et qui illustrent typiquement la nouveauté de l'invention sont les suivants.
PCT/SG2010/000411 2010-09-16 2010-10-28 Console surélevée pour accès facile (rcea) utilisée sur les installations de forage à élévation automatique (secteur de l'énergie en haute mer) Ceased WO2012036630A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG2010067395A SG179303A1 (en) 2010-09-16 2010-09-16 Raised cantilever for easy access (rcea) used on self elevating drilling rigs (offshore energy sector)
SG201006739-5 2010-09-16

Publications (2)

Publication Number Publication Date
WO2012036630A1 true WO2012036630A1 (fr) 2012-03-22
WO2012036630A9 WO2012036630A9 (fr) 2013-09-26

Family

ID=45831846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2010/000411 Ceased WO2012036630A1 (fr) 2010-09-16 2010-10-28 Console surélevée pour accès facile (rcea) utilisée sur les installations de forage à élévation automatique (secteur de l'énergie en haute mer)

Country Status (2)

Country Link
SG (1) SG179303A1 (fr)
WO (1) WO2012036630A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014120085A1 (fr) * 2013-02-01 2014-08-07 Khim Kiong Ng Système de porte-à-faux jumeau pour plateformes à élévation par vérins pour l'utilisation avec des plateformes de forage à auto-élévation (industrie pétrolière et gazière)
US20140270974A1 (en) * 2013-03-15 2014-09-18 Keppel Offshore & Marine Technology Center Multi-direction direct cantilever skidding system
US8851797B1 (en) * 2013-03-15 2014-10-07 Offshore Technology Development Three rail multi-directional direct cantilever skidding system
GB2525084A (en) * 2014-03-04 2015-10-14 Maersk Drilling As Conductor pipe support system for an off-shore platform
GB2536998A (en) * 2015-01-13 2016-10-05 Claxton Eng Services Ltd Deck for offshore rig
CN111139808A (zh) * 2019-12-30 2020-05-12 南通振华重型装备制造有限公司 一种自升式钻井平台悬臂梁搭载方法
CN116552698A (zh) * 2023-04-14 2023-08-08 江苏大津重工有限公司 一种用于海洋平台风机叶片堆放的可拆卸式贝雷架结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6171027B1 (en) * 1997-08-29 2001-01-09 Marine Structure Consultants (Msc) B.V. Cantilevered jack-up platform
US7083004B2 (en) * 2002-10-17 2006-08-01 Itrec B.V. Cantilevered multi purpose tower and method for installing drilling equipment
US7410326B2 (en) * 2006-08-21 2008-08-12 Marvin Lynn Morrison Auxiliary reaction frame system for cantilevered jack-up rigs, and method therefore
US20080298898A1 (en) * 2005-10-11 2008-12-04 Itrec B.V. Offshore Platform with Movable Cantilever Extending Beyond the Deck

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6171027B1 (en) * 1997-08-29 2001-01-09 Marine Structure Consultants (Msc) B.V. Cantilevered jack-up platform
US7083004B2 (en) * 2002-10-17 2006-08-01 Itrec B.V. Cantilevered multi purpose tower and method for installing drilling equipment
US20080298898A1 (en) * 2005-10-11 2008-12-04 Itrec B.V. Offshore Platform with Movable Cantilever Extending Beyond the Deck
US7410326B2 (en) * 2006-08-21 2008-08-12 Marvin Lynn Morrison Auxiliary reaction frame system for cantilevered jack-up rigs, and method therefore

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014120085A1 (fr) * 2013-02-01 2014-08-07 Khim Kiong Ng Système de porte-à-faux jumeau pour plateformes à élévation par vérins pour l'utilisation avec des plateformes de forage à auto-élévation (industrie pétrolière et gazière)
US20140270974A1 (en) * 2013-03-15 2014-09-18 Keppel Offshore & Marine Technology Center Multi-direction direct cantilever skidding system
US8851797B1 (en) * 2013-03-15 2014-10-07 Offshore Technology Development Three rail multi-directional direct cantilever skidding system
US8926224B2 (en) * 2013-03-15 2015-01-06 Offshore Technology Development Multi-direction direct cantilever skidding system
GB2525084A (en) * 2014-03-04 2015-10-14 Maersk Drilling As Conductor pipe support system for an off-shore platform
GB2525084B (en) * 2014-03-04 2017-07-26 Maersk Drilling As Conductor pipe support system for an off-shore platform
GB2536998A (en) * 2015-01-13 2016-10-05 Claxton Eng Services Ltd Deck for offshore rig
CN111139808A (zh) * 2019-12-30 2020-05-12 南通振华重型装备制造有限公司 一种自升式钻井平台悬臂梁搭载方法
CN111139808B (zh) * 2019-12-30 2021-08-17 南通振华重型装备制造有限公司 一种自升式钻井平台悬臂梁搭载方法
CN116552698A (zh) * 2023-04-14 2023-08-08 江苏大津重工有限公司 一种用于海洋平台风机叶片堆放的可拆卸式贝雷架结构

Also Published As

Publication number Publication date
WO2012036630A9 (fr) 2013-09-26
SG179303A1 (en) 2012-04-27

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