WO2009090321A2 - Procede de mise en place d'un appareil de forage sur une plateforme et de preparation au forage - Google Patents
Procede de mise en place d'un appareil de forage sur une plateforme et de preparation au forage Download PDFInfo
- Publication number
- WO2009090321A2 WO2009090321A2 PCT/FR2008/001281 FR2008001281W WO2009090321A2 WO 2009090321 A2 WO2009090321 A2 WO 2009090321A2 FR 2008001281 W FR2008001281 W FR 2008001281W WO 2009090321 A2 WO2009090321 A2 WO 2009090321A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- barge
- platform
- drilling
- rig
- protuberances
- Prior art date
Links
Classifications
-
- 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
- B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules
-
- 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
-
- 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
- E02B2017/0039—Methods for placing the offshore structure
- E02B2017/0047—Methods for placing the offshore structure using a barge
Definitions
- the present invention relates to a method of preparation for drilling operations comprising the placing in one go of a fully equipped drilling rig on a platform placed or anchored on the seabed or lake and having an emerging part, at help from a semi-submersible barge.
- This platform consists of a tower-shaped structure placed on the seabed or lacustrine, usually metal and called “jacket", unmanned and un-equipped, on which is installed a drilling rig.
- This unit is installed only for drilling or well maintenance operations ("Work over”). It consists of a substructure, a derrick and drilling equipment, such as a "Blow Out Preventer” (BOP), a winch for handling drill pipes and a cabin for measuring equipment. ; such a drilling rig is known as a "derrick set” or “rig” and its mass is generally between 600 and 800 tons.
- BOP Second Out Preventer
- the platform (the "jacket") is placed on the drilling field before the actual drilling operation, equipped with its bridges but without the drilling rig.
- the problem is then to install a drilling rig on the upper deck of such a platform, so at a relatively high height above the water level, for example 20 m, the most economical way so the faster than possible.
- the reverse operation must also be able to be executed economically once the drilling or maintenance operation is completed, for example to reposition the drilling rig on another platform.
- a drilling operation requires many other installations (technical and residential premises, fluid tanks, helicopter landing platform ...), so as to receive staff, provide energy, accommodate and store drilling equipment such as drill pipe or drilling mud facilities for example. These installations represent very large volumes and masses (several thousand tons).
- a known solution (UK 2199791, FR 2474992) is to deposit on the platform a complete superstructure called "top side", in one piece, including all the drilling and production facilities, This installation is usually carried out either with one or more large capacity floating cranes, using ballastable barges according to a method called
- ballasting does not allow to raise the superstructure beyond a few meters. Moreover, this operation is irreversible for the lifespan and operation of the platform.
- Another known solution is to use a self-raising barge platform or "Jackup" placed on the bottom near the platform and of sufficient size to accommodate the premises and equipment required for drilling.
- the drilling rig rests on cantilevered beams of said barge and is translated in one piece above the platform, possibly at a high height.
- the self-elevating barge which is massive, leaves deep footprints on the seabed or lake that make it difficult to reposition later another barge of the same type.
- Another solution is to use a barge or a support vessel called a "tender" which drops the rig on the platform in packages of about 30 to 100 tonnes using its lifting equipment, the drilling rig. being assembled as and when. It is a long operation, delicate and risky in terms of security so expensive because it requires excellent weather for several days.
- the object of the present invention is to provide an advantageous solution to this problem by means of a method of placing, in a single and repositionable manner, a complete drilling rig on a platform already equipped with bridges designed to support the wellheads and the rig.
- the device that must install the drilling rig at a great height provides for the use of a semi-submersible barge.
- the method is also applicable to a platform anchored to the seabed, for example of the "Spar" type, the important thing being that said platform is not subjected to heave movements created by the swell. In the reverse order of the steps, the method is also applicable to the removal in one operation of a complete drilling rig.
- a method of preparation for drilling operations comprising the one-time and repositionable installation of a drilling rig on a platform anchored or placed on a seabed or lake, the part of which hatch includes at least one upper deck for receiving at least one wellhead and one rig, said method using a semi-submersible barge having a longitudinal axis whose hull comprises two substantially parallel protuberances defining a space, said barge comprising lifting means supported by the protrusions as well as ballasting and deballasting means, characterized in that it comprises the following steps:
- the means for lifting the barge are installed with means which will be used as interface between the barge and the drilling rig, then between the platform and the rig, the barge being for example docked in a port facility, using lifting means such as handling cranes dock or barge.
- the drilling apparatus is disposed on the interface means via its substructure, in one or more times in using lifting means such as handling cranes of the dock or the barge.
- the assembly consisting of the interface means and the drilling rig is made integral with the lifting means and these lifting means are preferably placed in the lower position to improve the stability of the barge.
- the drilling rig and the interface means are elevated by deballasting the barge and playing on the lifting means, successively or simultaneously .
- the combination of the two it is possible to raise the whole to a high height.
- the barge maneuver so as to approach the platform and to place the raised portion of said platform between its growths.
- the barge will have previously anchored, either using anchors or by dynamic positioning, or a combination of both.
- the maneuver is therefore performed by playing on its anchor lines and / or its dynamic positioning.
- the drilling apparatus and the interface means are then lowered and placed on the upper deck of the platform, for example by rapid ballasting of the barge and / or rapid descent of the lifting means.
- connecting means are installed between the barge and the platform provided with the drilling system, for example a gangway for the personnel, electrical lines and fluid lines.
- Large drilling equipment such as drill pipe, is delivered to the platform as it goes through the handling cranes on the barge.
- the size of the barge allows it to accommodate all the equipment (technical and housing, energy production, mud factory, helicopter platform %) to provide logistical support for a drilling operation.
- the platform is not strong enough to support the weight of a complete drilling rig, including the drill pipe, and its interface means, for example when it is old and partially corroded.
- Force sensors strain gauges for example
- a servocontrol are necessary to compensate for the inevitable movements of the barge and therefore lifting means.
- the barge remains positioned so that the platform remains between its growths and steps seven and eight do not take place.
- the interface means may consist of a structure comprising for example two substantially parallel beams disposed in the first step substantially orthogonal to the longitudinal axis of the barge and resting at their ends on the lifting means of the barge.
- the drilling rig rests on the interface beams during the entire course of the process.
- the interface beams remain on the platform during all the drilling operations, the drilling rig resting entirely on said beams. This has the advantage that the drilling rig can be subsequently removed very quickly with a barge of the same type by unrolling the process in the reverse order of steps, and for example deposited on another platform.
- the interface beams are also used to move the drilling rig on the upper deck in both directions of the plane, so as to access each of the drilling heads provided on the platform.
- each beam comprises a removable portion at each end, secured during the steps one to six of the method for example by bolting, and then dismounted using the lifting means of the barge.
- FIGS. 1A and 1B are two perspective views of a barge used for the implementation of the method
- FIG. 2 is a side view of an equipped drilling rig, placed on interface beams, intended to be installed on a platform
- FIGS. 3A to 3N are side views of the barge schematically showing the steps of the method
- FIG. 4 is a side view of an interface beam
- Figure 5 is a perspective view of an example of a barge used by the method.
- the hull of the semi-submersible barge 1 shown in FIG. 1A comprises at its stern two protuberances 1a and 1b, which for example extend one of the decks of the barge and which delimit a space 2 of sufficient size that the exposed portion of a platform can come to take place, for example of the order of 30 x 40 m.
- These protuberances are strong enough to support the weight of a fully equipped drill rig.
- the barge also includes technical rooms 3a and 3b, a helicopter landing platform 4, living quarters 5, a main crane
- auxiliary crane 6b which allow it to provide all the support necessary for a drilling operation. It comprises means for ballasting and deballasting, for example hollow bodies within its structure, which can be filled and emptied with seawater or any other fluid using pumps (not shown) to vary the freeboard importantly. It has a longitudinal axis A-A '.
- the barge 1 has four lifting towers, 7a and 7b resting on the protrusion 1a, 7c and 7d resting on the protrusion Ib.
- These lifting towers have a height typically of ten to fifteen meters, they include lifting brackets on which can rest the drilling rig via its interface means, and are equipped for example with powerful hydraulic winches or any other elevation system allowing them to lift each up to 2501.
- the wallet bridge 8 is folded and the space 2 between the protuberances 1a and 1b of the shell is thus open.
- the deck bridge 8 has been deployed and drilling equipment such as drill pipes have been placed therein.
- the barge of Figure 1 is shown without means of propulsion, but it is obvious that it can be self-propelled. It comprises dynamic positioning means, for example steerable thrusters, not shown.
- FIG. 2 represents an equipped drilling rig installed on a platform 20. It comprises a substructure 11, a derrick 12, and drilling equipment such as a "BOP" 13 and other equipment 14. It is based on interface beams 15a and 15b.
- the platform 20 comprises an emergent part 21, comprising two bridges, including an upper bridge 16 on which the interface means 15a and 15b rest.
- the upper deck 16 is typically at a height of 18 to 20 meters above sea level O.
- Figures 3A to 3N illustrate the various steps of the method.
- the drilling apparatus 10 and interface means 15 are installed on lifting towers supported by the protuberances of the barge 1a, 1b, for example in a harbor installation in 5 sub-steps. ; the number of sub-steps may be variable depending for example on the capacity of the available lifting means and / or the time available for the barge.
- the drilling apparatus 10 is disposed on the lifting supports in the low position of the lifting towers 7a, 7b, 7c and 7d of the barge.
- Figure 3G illustrates the self-propelled transit of the barge carrying the rig to the platform; it can also be towed.
- the barge is ballasted to ensure better stability.
- the barge begins to maneuver to approach the platform 20, coming from the rear so as to place the emerged portion 21 of the platform between the protuberances Ia and Ib of the barge.
- the maneuvers are performed by playing on mooring lines (not shown) and / or its dynamic anchoring means.
- Anchors may have been arranged in advance or put in place by the barge itself.
- the barge has approached the platform 20 and raises the drilling apparatus 10 so that the interface means 15 is higher than the upper deck 16 of the platform 20. This elevation by unballasting the barge and operating the hoisting towers 7.
- FIG. 3J the barge has maneuvered so as to place the emergent part 21 of the platform between the protuberances Ia and Ib of the hull.
- Figure 3K is an elevational view of the barge, the rig 10 and the platform 20 in the same situation.
- the drilling apparatus 10 is placed on the beams 15a (not visible) and 15b, in the raised position of the lifting means 7a, 7b, 7c and 7d, and the emergent part 21 of the platform is located between the protuberances 1a and 1b. from the barge.
- the drilling apparatus 10 is slowly lowered so as to rest it on the upper deck 16 of the platform 20 via the interface means 15a and 15b, either by ballasting or by actuating at lower the lifting towers 7a, 7b, 7c and 7d, either by a combination of both.
- Shocks (not shown) are arranged between the interface means 15a and 15b and the upper deck 16 of the platform 20 so as to avoid damaging the platform 20 by too abrupt contact with the drilling apparatus 10, by example because of the movements of heave the barge. Once the contact is established, the barge continues to unpack to clear the rig.
- the barge stops in the vicinity of the platform 20 supporting the drilling rig 10, thanks to the wetting lines (not shown) and / or its dynamic anchoring means.
- the deck bridge 8 is unfolded so as to cover the space 2 between the protuberances 1a and 1b of the barge; drilling equipment is advantageously arranged.
- connecting means 22 such as gangway, electrical conductors and pipes are placed between the barge and the platform 20 so as to allow drilling operations.
- FIG. 4 represents one of the interface beams 15b (respectively 15a) resting on the upper deck 16 of the platform 20, which comprises two demountable portions 15c and 15d (respectively 15e and 15f), held integral with the body of the beam for example by bolting and which are disassembled once the drilling rig on the platform, using for example the cranes 6a and 6b of the barge.
- FIGS. 1A and 1B illustrate an example of a barge comprising a retractable means 8, for example of the type deck-bridge or hatch-board articulated, to cover the space 2 when the drilling rig 10 has been deposited on the platform 20.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008801126781A CN102137973A (zh) | 2007-09-13 | 2008-09-12 | 将钻探设备设置就位在一平台上并准备钻探作业的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0706409A FR2921098B1 (fr) | 2007-09-13 | 2007-09-13 | Procede de mise en place d'un appareil de forage en mer et de preparation au forage |
FR0706409 | 2007-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009090321A2 true WO2009090321A2 (fr) | 2009-07-23 |
Family
ID=39420334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2008/001281 WO2009090321A2 (fr) | 2007-09-13 | 2008-09-12 | Procede de mise en place d'un appareil de forage sur une plateforme et de preparation au forage |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR20100087094A (fr) |
CN (1) | CN102137973A (fr) |
FR (1) | FR2921098B1 (fr) |
WO (1) | WO2009090321A2 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105314069B (zh) | 2009-09-04 | 2019-10-11 | 伊特雷科公司 | 用于海上风轮机安装的双船体船 |
CN102975816B (zh) * | 2012-12-17 | 2015-05-20 | 中国人民解放军92941部队 | 自升式钻井平台与海上固定平台对接定位引导方法 |
CN103158838B (zh) * | 2013-03-18 | 2016-03-30 | 中集海洋工程研究院有限公司 | 一种快速组装和拆分的分体钻井船以及制造方法 |
NL2011002C2 (en) * | 2013-06-18 | 2014-12-22 | Heerema Marine Contractors Nl | Drilling module. |
CN103879523A (zh) * | 2014-03-03 | 2014-06-25 | 浙江海洋学院 | 钻井船 |
GB2564152A (en) * | 2017-07-05 | 2019-01-09 | Oil & Gas Decommissioning Ltd | Offshore decommissioning vessel and methods of use |
CN107719585B (zh) * | 2017-11-17 | 2023-12-29 | 广州碧海新能源有限公司 | 一种海洋平台 |
KR102084058B1 (ko) * | 2017-11-29 | 2020-04-28 | 삼성중공업 주식회사 | 가변 탑 사이드 플랫폼 |
CN110389002B (zh) * | 2019-08-05 | 2024-08-06 | 中交上海港湾工程设计研究院有限公司 | 一种用于测量码头靠泊撞击力的传感器组件 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL93492C (fr) * | ||||
GB841333A (en) * | 1957-12-16 | 1960-07-13 | Moore Corp Lee C | Improvements in barge-carried oil well drilling equipment |
FR2474557A2 (fr) * | 1979-10-05 | 1981-07-31 | Doris Dev Richesse Sous Marine | Plate-forme reposant sur fond sous-marin et son procede de mise en place |
FR2474992B1 (fr) * | 1980-02-05 | 1987-11-27 | Doris Dev Richesse Sous Marine | Dispositif flottant pour travaux en mer |
NL8701856A (nl) * | 1987-01-14 | 1988-08-01 | Allseas Eng Bv | Werkwijze voor het manoeuvreren van een opbouwelement ten opzichte van een in water aangebrachte vaste constructie, werkwijze voor het bouwen van een bouwwerk en bouwwerk gebouwd volgens een dergelijke werkwijze. |
US4907912A (en) * | 1988-10-05 | 1990-03-13 | Jfp Energy, Inc. | Submersible production storage barge and method for transporting and installing a jack-up rig in a body of water |
US5403124A (en) * | 1993-07-26 | 1995-04-04 | Mcdermott International, Inc. | Semisubmersible vessel for transporting and installing heavy deck sections offshore using quick drop ballast system |
-
2007
- 2007-09-13 FR FR0706409A patent/FR2921098B1/fr not_active Expired - Fee Related
-
2008
- 2008-09-12 CN CN2008801126781A patent/CN102137973A/zh active Pending
- 2008-09-12 WO PCT/FR2008/001281 patent/WO2009090321A2/fr active Application Filing
- 2008-09-12 KR KR1020107008058A patent/KR20100087094A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FR2921098A1 (fr) | 2009-03-20 |
FR2921098B1 (fr) | 2015-12-11 |
CN102137973A (zh) | 2011-07-27 |
KR20100087094A (ko) | 2010-08-03 |
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