WO2008130242A1 - A method and a device for intervention in an underwater production well - Google Patents
A method and a device for intervention in an underwater production well Download PDFInfo
- Publication number
- WO2008130242A1 WO2008130242A1 PCT/NO2008/000132 NO2008000132W WO2008130242A1 WO 2008130242 A1 WO2008130242 A1 WO 2008130242A1 NO 2008000132 W NO2008000132 W NO 2008000132W WO 2008130242 A1 WO2008130242 A1 WO 2008130242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drilling rig
- well head
- well
- intervention
- seabed
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 40
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- E21B7/12—Underwater drilling
- E21B7/124—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors
-
- 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
- E21B15/02—Supports for the drilling machine, e.g. derricks or masts specially adapted for underwater drilling
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
- E21B19/143—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole specially adapted for underwater drilling
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
Definitions
- This invention relates to a method for intervention in an underwater production well. More particularly, it relates to a method for intervention in an underwater production well, in which the well head of the production well is located on the seabed, and wherein a drilling rig, which comprises at least a robotized drill floor, is placed at the well head, after which necessary intervention operations are carried out in a remote-controlled manner by means of the drilling rig.
- the invention also comprises a device for practising the invention.
- intervention and intervention operations imply repair- and maintenance operations in a well, typically a producing petroleum well, requiring tools to be moved into the well.
- drill floor is used in the sense of an area from which intervention operations are carried out, and it also comprises necessary equipment normally located on a drill floor.
- a blowout preventer is connected to the well head when intervention operations are to be carried out, after which a marine riser, which belongs to an intervention vessel located at sea level, is connected to the blowout preventer. Then, intervention operations are carried out by means of a workover riser, which is also connected to the blowout preventer, and which is provided with necessary valves at the surface.
- the object of the invention is to remedy or reduce at least one of the disadvantages of the prior art.
- a method according to the invention for intervention in an underwater production well in which the well head of the well is located on the seabed, is characterized in that a drilling rig, which comprises at least a robotized drill floor, is placed at the well head, after which necessary intervention operations are carried out in a remote- controlled manner by means of the drilling rig.
- the drilling rig which is submerged, is connected to a bottom frame, which fits in a complementary manner to the well head, is first lowered and anchored to the seabed.
- a blowout preventer a so-called BOP, is connected to the well head.
- suction anchors exhibit several favourable features. Suction anchors may be displaced into the seabed without risking damage to the well or the well head. It is relatively simple to displace suction anchors into the ground to the desired depth so as to allow the bottom frame to correspond, in terms of height, to that of the well head. Further, suction anchors may be released relatively simply from the sea floor.
- the bottom frame may be guided down in a manner known per se by means of two or several guide wires .
- a support frame is mounted on the bottom frame when the drilling rig is mounted on the support frame.
- the drilling rig is connected to the bottom frame by means of the support frame .
- the bottom frame may be erected to the height of an upper portion of the well head.
- the support frame which extends upwards from the bottom frame, will surround the blowout preventer of the well.
- the bottom frame which fits in a complementary manner to the well head, and which is anchored to the seabed, preferably by means of at least one suction anchor, forms a base for the drilling rig.
- Document NO 20053279 describes a drilling rig placed on the seabed.
- the drilling rig corresponding to NO 20053279 may be formed as an intervention drilling rig and mounted on the support frame.
- the drilling rig is provided with a drilling module having pipes supplied thereto from a drill pipeo magazine. Normally, the drilling rig is also provided with necessary pumping- and cleaning equipment for drilling fluid.
- the drilling rig may comprise necessary equipment for at least coiled-tubing or wireline operations.
- a method and a device according to the invention in which as drilling rig is placed on the seabed at the well head of the well, renders possible for intervention operations to be carried out substantially independent of the weather, simultaneously substantially obviating problems related to the mechanical connection of a weather-affected vessel to ao well head on the seabed.
- Figure 1 shows, in perspective, a well head placed on thes seabed, and in which a bottom frame is being lowered to the well head;
- Figure 2 shows, in perspective, the well head and the bottom frame after having anchored the well head in the seabed
- Figure 3 shows, in perspective, the well head and the bottom frame after having mounted a blowout preventer on the well head
- Figure 4 shows, in perspective, the well head after having mounted a drilling rig on the bottom frame by means of a support frame .
- reference numeral 1 denotes a well head connected to a well (not shown) placed on the seabed 2 and connected to a number of pipe connections 4.
- a protective frame 6 is placed over the well head.
- the well head 1 is provided with guide-in columns 8.
- a bottom frame 10 is shown during lowering to the well head 1.
- the necessary guide wires and hoisting equipment are not shown.
- the bottom frame 10 comprises a frame portion 12, which is horizontal in its position of use, provided with eight downwardly projecting leg columns 14.
- the leg columns 14 are connected each to a respective suction anchor 16.
- the suction anchors 16 are arranged so as to be able to be displaced down into the seabed 2 in a manner known per se, see fig. 2.
- guide mandrels 18 extend upwardly from the frame portion 12, the guide mandrels 18 being distributed around the central axis 20 of the bottom frame 10, the central axis 20 being vertical in its position of use.
- a blowout preventer 22 may be guided down onto the well head 1 and connected to the well head 1 by means of guide wires and guide-in columns 8 (not shown), see fig. 3.
- the blowout preventer 22 may be connected to the well head 1 before mounting the bottom frame 10.
- a support frame 24 may be guided down onto the guide mandrels 18 of the bottom frame 5 10 by means of guide wires (not shown), see fig. 4.
- the support frame 24 is connected to the bottom frame 10 in a manner known per se, for example by means of hydraulically operated locking connections (not shown) .
- a drilling rig 26 which is arranged to be controlled fromo the surface, is then lowered onto the support frame 24 and is connected thereto.
- the drilling centre 28 of the drilling rig 26 corresponds to the centre 30 of the well head ⁇ and the blowout preventer 22.
- the drilling rig 1 is provided with a drilling module 34, a number of pipe magazines 36 and also a pumping module 38 for drilling fluid and a support module 40 comprising, amongo other things, cleaning equipment (not shown) for drilling fluid.
- a tool magazine 42 and a manipulator 44 are shown through openings 46 in walls 46 of the robotized drill floor 32. During operation the openings 46 are closed. 5
- the drilling rig 26 is arranged so as to be able to carry out, in a remote-controlled manner, relatively heavy intervention operations in the well (not shown) .
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/596,778 US20100147526A1 (en) | 2007-04-20 | 2008-04-14 | Method and a device for intervention in an underwater production well |
EP08741723.4A EP2147182A4 (de) | 2007-04-20 | 2008-04-14 | Verfahren und vorrichtung zum eingriff in einem unterwasser-produktionsbohrloch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20072021A NO20072021L (no) | 2007-04-20 | 2007-04-20 | Fremgangsmate og anordning for intervensjon i en undervanns produksjonsbronn |
NO20072021 | 2007-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008130242A1 true WO2008130242A1 (en) | 2008-10-30 |
Family
ID=39875688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2008/000132 WO2008130242A1 (en) | 2007-04-20 | 2008-04-14 | A method and a device for intervention in an underwater production well |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100147526A1 (de) |
EP (1) | EP2147182A4 (de) |
NO (1) | NO20072021L (de) |
WO (1) | WO2008130242A1 (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7584796B2 (en) * | 2002-04-30 | 2009-09-08 | Coupler Developments Limited | Drilling rig |
US7600570B2 (en) * | 2005-07-05 | 2009-10-13 | Seabed Rig As | Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells |
US7644768B2 (en) * | 2006-03-20 | 2010-01-12 | Seabed Rig As | Separation device for material from a drilling rig situated on the seabed |
US7735561B2 (en) * | 2007-03-01 | 2010-06-15 | Chevron U.S.A. Inc. | Subsea adapter for connecting a riser to a subsea tree |
CN101864929A (zh) * | 2010-05-05 | 2010-10-20 | 宝鸡石油机械有限责任公司 | 一种海洋水下勘察基盘 |
ITAN20100076A1 (it) * | 2010-05-13 | 2011-11-14 | Elena Bricca | Struttura per la messa in sicurezza dei pozzi petroliferi off shore. |
CN102322219A (zh) * | 2011-05-26 | 2012-01-18 | 上海交通大学 | 海底射流钻井车 |
WO2012065896A3 (en) * | 2010-11-16 | 2012-09-07 | Aker Subsea As | Bop lock down |
WO2017044852A1 (en) * | 2015-09-10 | 2017-03-16 | Cameron International Corporation | Subsea hydrocarbon extraction system |
EP3312379A1 (de) * | 2013-06-24 | 2018-04-25 | Trendsetter Vulcan Offshore Inc. | Systeme und verfahren zur anbindung von untersee-absperrventilen |
CN109025824A (zh) * | 2018-08-16 | 2018-12-18 | 招远市铱璐光电科技有限公司 | 一种铁甲蟹海底勘钻探机器人 |
US10577768B2 (en) | 2013-06-24 | 2020-03-03 | Trendsetter Vulcan Offshore, Inc. | Systems and methods for tethering subsea structure mounted on a wellhead |
US10697245B2 (en) | 2015-03-24 | 2020-06-30 | Cameron International Corporation | Seabed drilling system |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2196622A1 (de) * | 2008-12-12 | 2010-06-16 | Welltec A/S | Unterwasserbohrlocheingriffsmodul |
US9057243B2 (en) * | 2010-06-02 | 2015-06-16 | Rudolf H. Hendel | Enhanced hydrocarbon well blowout protection |
US10113382B2 (en) * | 2010-06-02 | 2018-10-30 | Rudolf H. Hendel | Enhanced hydrocarbon well blowout protection |
US8695711B2 (en) * | 2010-06-04 | 2014-04-15 | J. Ray Mcdermott, S.A. | Subsea well containment and intervention apparatus |
GB2497325A (en) * | 2011-12-07 | 2013-06-12 | Peter Gerard Allan | Disconnectable sea floor drilling rig base frame |
US11499379B2 (en) * | 2019-03-20 | 2022-11-15 | Rigtec Wellservice As | System and method for subsea well operation |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003093625A2 (en) * | 2002-04-30 | 2003-11-13 | Maris International Limited | Underwater drilling rig |
NO317384B1 (no) * | 2001-04-04 | 2004-10-18 | Offshore Resource Group As | Fremgangsmate og anordning for verktoyinnforing i undervanns olje og gass reservoar |
WO2006099316A1 (en) * | 2005-03-11 | 2006-09-21 | Saipem America Inc. | Riserless modular subsea well intervention, method and apparatus |
WO2007004887A1 (en) * | 2005-07-05 | 2007-01-11 | Seabed Rig As | Drilling rig placed on the sea bed and equipped for drilling of oil- and gas wells |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3099316A (en) * | 1960-04-25 | 1963-07-30 | Shell Oil Co | Underwater wellhead apparatus and method |
GB1255557A (en) * | 1969-04-09 | 1971-12-01 | Conrad & Hijsch Nv | Drilling apparatus |
US3741320A (en) * | 1971-07-12 | 1973-06-26 | Atlas Copco Ab | Subsea drilling assembly |
NO760391L (de) * | 1976-02-05 | 1976-08-09 | Taywood Seltrust Offshore | |
US4194857A (en) * | 1976-11-22 | 1980-03-25 | Societe Nationale Elf Aquitaine (Production) | Subsea station |
US4290495A (en) * | 1979-06-18 | 1981-09-22 | Hydra-Rig, Inc. | Portable workover rig with extendable mast substructure, platform mounted drawworks and adjustable wellhead anchor |
US4625806A (en) * | 1979-09-26 | 1986-12-02 | Chevron Research Company | Subsea drilling and production system for use at a multiwell site |
US4427072A (en) * | 1982-05-21 | 1984-01-24 | Armco Inc. | Method and apparatus for deep underwater well drilling and completion |
US5188178A (en) * | 1991-08-01 | 1993-02-23 | Texaco Inc. | Method and apparatus for automatic well stimulation |
US5244046A (en) * | 1992-08-28 | 1993-09-14 | Otis Engineering Corporation | Coiled tubing drilling and service unit and method for oil and gas wells |
NO960698D0 (no) * | 1996-02-21 | 1996-02-21 | Statoil As | System til forankring av skip |
NO307309B1 (no) * | 1997-11-03 | 2000-03-13 | Kongsberg Offshore As | Fremgangsmåte og anordning til montasje av en havbunninstallasjon |
AR018459A1 (es) * | 1998-06-12 | 2001-11-14 | Shell Int Research | Metodo y disposicion para mover equipos hacia y a traves de un conducto y dispositivo de vaiven para ser usado en dicha disposicion |
DE19837692C2 (de) * | 1998-08-19 | 2003-04-03 | Bentec Gmbh Drilling & Oilfield Systems | Bohrvorrichtung, Bohranlage und Verfahren zum Abteufen einer Explorations- und Förderbohrung |
US6056058A (en) * | 1998-10-26 | 2000-05-02 | Gonzalez; Leonel | Methods and apparatus for automatically launching sticks of various materials into oil and gas wells |
US6488093B2 (en) * | 2000-08-11 | 2002-12-03 | Exxonmobil Upstream Research Company | Deep water intervention system |
US8171989B2 (en) * | 2000-08-14 | 2012-05-08 | Schlumberger Technology Corporation | Well having a self-contained inter vention system |
GB0020460D0 (en) * | 2000-08-18 | 2000-10-11 | Alpha Thames Ltd | A system suitable for use on a seabed and a method of installing it |
NO312560B1 (no) * | 2000-08-21 | 2002-05-27 | Offshore & Marine As | Intervensjonsmodul for en brönn |
US7165619B2 (en) * | 2002-02-19 | 2007-01-23 | Varco I/P, Inc. | Subsea intervention system, method and components thereof |
FR2839542B1 (fr) * | 2002-05-07 | 2004-11-19 | Bouygues Offshore | Installation de liaison fond-surface d'une conduite sous- marine comprenant un element de conduite coude maintenu par une embase |
WO2004018826A1 (en) * | 2002-08-22 | 2004-03-04 | Hansen, Henning | Subsea drilling module for use in drilling of oil and gas wells |
GB0301186D0 (en) * | 2003-01-18 | 2003-02-19 | Expro North Sea Ltd | Autonomous well intervention system |
US7487836B2 (en) * | 2005-03-11 | 2009-02-10 | Saipem America Inc. | Riserless modular subsea well intervention, method and apparatus |
NO329222B1 (no) * | 2006-03-20 | 2010-09-13 | Seabed Rig As | Anordning for utskilling av materiale fra en borerigg som er anbrakt pa havbunnen |
US7703534B2 (en) * | 2006-10-19 | 2010-04-27 | Adel Sheshtawy | Underwater seafloor drilling rig |
-
2007
- 2007-04-20 NO NO20072021A patent/NO20072021L/no not_active Application Discontinuation
-
2008
- 2008-04-14 WO PCT/NO2008/000132 patent/WO2008130242A1/en active Application Filing
- 2008-04-14 US US12/596,778 patent/US20100147526A1/en not_active Abandoned
- 2008-04-14 EP EP08741723.4A patent/EP2147182A4/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO317384B1 (no) * | 2001-04-04 | 2004-10-18 | Offshore Resource Group As | Fremgangsmate og anordning for verktoyinnforing i undervanns olje og gass reservoar |
WO2003093625A2 (en) * | 2002-04-30 | 2003-11-13 | Maris International Limited | Underwater drilling rig |
WO2006099316A1 (en) * | 2005-03-11 | 2006-09-21 | Saipem America Inc. | Riserless modular subsea well intervention, method and apparatus |
WO2007004887A1 (en) * | 2005-07-05 | 2007-01-11 | Seabed Rig As | Drilling rig placed on the sea bed and equipped for drilling of oil- and gas wells |
Non-Patent Citations (1)
Title |
---|
See also references of EP2147182A4 * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7584796B2 (en) * | 2002-04-30 | 2009-09-08 | Coupler Developments Limited | Drilling rig |
US7600570B2 (en) * | 2005-07-05 | 2009-10-13 | Seabed Rig As | Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells |
US7644768B2 (en) * | 2006-03-20 | 2010-01-12 | Seabed Rig As | Separation device for material from a drilling rig situated on the seabed |
US7735561B2 (en) * | 2007-03-01 | 2010-06-15 | Chevron U.S.A. Inc. | Subsea adapter for connecting a riser to a subsea tree |
CN101864929A (zh) * | 2010-05-05 | 2010-10-20 | 宝鸡石油机械有限责任公司 | 一种海洋水下勘察基盘 |
ITAN20100076A1 (it) * | 2010-05-13 | 2011-11-14 | Elena Bricca | Struttura per la messa in sicurezza dei pozzi petroliferi off shore. |
US9080408B2 (en) | 2010-11-16 | 2015-07-14 | Aker Subsea As | BOP lock down |
WO2012065896A3 (en) * | 2010-11-16 | 2012-09-07 | Aker Subsea As | Bop lock down |
CN103210175A (zh) * | 2010-11-16 | 2013-07-17 | 阿克海底公司 | 防喷器锁紧器 |
GB2499744A (en) * | 2010-11-16 | 2013-08-28 | Aker Subsea As | Bop lock down |
CN103210175B (zh) * | 2010-11-16 | 2016-02-03 | 阿克海底公司 | 防喷器锁紧器 |
GB2499744B (en) * | 2010-11-16 | 2018-08-01 | Aker Solutions As | Bop lock down |
CN102322219A (zh) * | 2011-05-26 | 2012-01-18 | 上海交通大学 | 海底射流钻井车 |
EP3312379A1 (de) * | 2013-06-24 | 2018-04-25 | Trendsetter Vulcan Offshore Inc. | Systeme und verfahren zur anbindung von untersee-absperrventilen |
US10577768B2 (en) | 2013-06-24 | 2020-03-03 | Trendsetter Vulcan Offshore, Inc. | Systems and methods for tethering subsea structure mounted on a wellhead |
EP3744944A1 (de) * | 2013-06-24 | 2020-12-02 | Trendsetter Vulcan Offshore Inc. | Systeme und verfahren zur anbindung von untersee-absperrventilen |
US10697245B2 (en) | 2015-03-24 | 2020-06-30 | Cameron International Corporation | Seabed drilling system |
WO2017044852A1 (en) * | 2015-09-10 | 2017-03-16 | Cameron International Corporation | Subsea hydrocarbon extraction system |
US20180355674A1 (en) * | 2015-09-10 | 2018-12-13 | Cameron International Corporation | Subsea Hydrocarbon Extraction System |
CN109025824A (zh) * | 2018-08-16 | 2018-12-18 | 招远市铱璐光电科技有限公司 | 一种铁甲蟹海底勘钻探机器人 |
Also Published As
Publication number | Publication date |
---|---|
EP2147182A1 (de) | 2010-01-27 |
EP2147182A4 (de) | 2015-04-29 |
NO20072021L (no) | 2008-10-21 |
US20100147526A1 (en) | 2010-06-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20100147526A1 (en) | Method and a device for intervention in an underwater production well | |
CA2767769C (en) | Offshore drilling system | |
US6352114B1 (en) | Deep ocean riser positioning system and method of running casing | |
AU2005202612B2 (en) | Dry tree subsea well communications apparatus and method using variable tension large offset risers | |
US8640775B2 (en) | Multi-deployable subsea stack system | |
JP5863959B2 (ja) | Bopアセンブリを水中保管するためのスロットを有する掘削システム | |
WO2004018826A1 (en) | Subsea drilling module for use in drilling of oil and gas wells | |
WO2017048941A1 (en) | Method for excavating a mud line cellar for subsea well drilling | |
WO2016054610A1 (en) | Drilling rig system with movable wellcenter assembly | |
WO2008100149A1 (en) | Method and device for erecting a drill rig on a sea bed | |
AU2015349120A1 (en) | A mobile offshore drilling unit, a method of using such a unit and a system comprising such a unit | |
US4105068A (en) | Apparatus for producing oil and gas offshore | |
US20070272414A1 (en) | Method of riser deployment on a subsea wellhead | |
US11560683B2 (en) | Offshore drilling unit | |
CN111691834B (zh) | 一种深水隔水管应急悬挂管柱系统和方法 | |
KR20160035260A (ko) | 파워 스위블 유닛을 이용한 컨덕터 파이프의 매설방법 | |
KR20150142750A (ko) | 드릴십의 원격제어잠수정 핸들링 시스템 | |
KR20160022572A (ko) | 시추선의 드릴링 방법 | |
NO346881B1 (en) | A system and a method for heave compensated make-up and break-out of drill pipe connections in connection with drilling | |
KR101210559B1 (ko) | 심 플레이트 조정기 | |
KR20160036259A (ko) | 시추 시스템 | |
KR20160041592A (ko) | 해저 파이프 핸들링 유닛 | |
KR20160022565A (ko) | 라이저 | |
KR20110024369A (ko) | 철재 러프네크와 머드버켓의 조립체, 이를 구비하는 시추선 및 드릴 파이프 내의 머드를 추출하기 위한 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08741723 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008741723 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12596778 Country of ref document: US |