NO330847B1 - Apparatus for separating material from a coupling unit in a drilling rig located on the seabed - Google Patents
Apparatus for separating material from a coupling unit in a drilling rig located on the seabed Download PDFInfo
- Publication number
- NO330847B1 NO330847B1 NO20061273A NO20061273A NO330847B1 NO 330847 B1 NO330847 B1 NO 330847B1 NO 20061273 A NO20061273 A NO 20061273A NO 20061273 A NO20061273 A NO 20061273A NO 330847 B1 NO330847 B1 NO 330847B1
- Authority
- NO
- Norway
- Prior art keywords
- drilling rig
- coupling unit
- drilling
- seabed
- pipe
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims description 48
- 230000008878 coupling Effects 0.000 title claims description 18
- 238000010168 coupling process Methods 0.000 title claims description 18
- 238000005859 coupling reaction Methods 0.000 title claims description 18
- 239000000463 material Substances 0.000 title description 6
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B19/16—Connecting or disconnecting pipe couplings or joints
-
- 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
- E21B41/06—Work chambers for underwater operations, e.g. temporarily connected to well heads
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)
Description
ANORDNING FOR UTSKILLING AV MATERIALE FRA EN KOPLINGSENHET I EN BORERIGG SOM ER ANBRAKT PÅ HAVBUNNEN DEVICE FOR SEPARATION OF MATERIAL FROM A COUPLING UNIT IN A DRILLING RIG PLACED ON THE SEA FLOOR
Denne oppfinnelse vedrører en anordning for utskilling av materiale fra en koplingsenhet i en borerigg som er anbrakt på havbunnen. Nærmere bestemt dreier det seg om en borerigg som er anbrakt på havbunnen hvor boreriggen er tettende kapslet i forhold til omgivelsene. Boreriggens koplingsenhet for rør er lukket, forsynt med tetninger mot røret og tilkoplet en oppsamler og utskiller for væske. This invention relates to a device for separating material from a coupling unit in a drilling rig which is placed on the seabed. More specifically, it concerns a drilling rig that is placed on the seabed where the drilling rig is hermetically sealed in relation to the surroundings. The drilling rig's pipe connection unit is closed, fitted with seals against the pipe and connected to a liquid collector and separator.
Olje og gassforekomster nede i jordskorpen utvinnes som kjent ved at det bores hull ned til forekomstene, slik at olje og gassforekomster kan dreneres opp til overflaten. As is known, oil and gas deposits deep in the earth's crust are extracted by drilling holes down to the deposits, so that the oil and gas deposits can be drained to the surface.
Utstyret som anvendes til boring av hull i jordskorpen omfatter i hovedsak et boretårn utført som en fagverkskonstruksjon i stål. I boretårnet er det plassert wirebasert hei-semaskineri for å heise opp og sette ned borerør. I tillegg anvendes det en del hjelpe-utstyr for å kunne håndtere borerør og for å kunne sette foringsrør i det borede hull. The equipment used for drilling holes in the earth's crust mainly comprises a derrick designed as a steel truss structure. Wire-based hoisting machinery is placed in the derrick to raise and lower drill pipe. In addition, some auxiliary equipment is used to be able to handle drill pipe and to be able to insert casing into the drilled hole.
Når olje og gassforekomstene må tas opp fra store havdyp, anvendes flytende eller faste plattformer som er forsynt med nødvendig boreutstyr. Plattformer av denne art er relativt store og kostbare konstruksjoner, idet boreutstyret er stort og tungt. I tillegg til selve boreutstyret er det nødvendig med stigerør (marine riser) mellom plattformen og havbunnen for å sirkulere boreslam under boreoperasjonen. Pa flytende plattformer er det også nødvendig med hivkompensering for å ivareta bølgebevegelser på plattformen i relasjon til havbunnen. When the oil and gas deposits have to be taken up from great ocean depths, floating or fixed platforms are used which are equipped with the necessary drilling equipment. Platforms of this kind are relatively large and expensive structures, as the drilling equipment is large and heavy. In addition to the drilling equipment itself, risers (marine risers) are needed between the platform and the seabed to circulate drilling mud during the drilling operation. On floating platforms, heave compensation is also necessary to safeguard wave movements on the platform in relation to the seabed.
Et alternativ til boring fra flytende boreplattformer er å plassere boreriggen direkte på havbunnen, slik at det ikke er nødvendig med store, kostbare plattformer. An alternative to drilling from floating drilling platforms is to place the drilling rig directly on the seabed, so that there is no need for large, expensive platforms.
WO 2004/018826 beskriver en havbunnsbasert borerigg hvor rør som senkes fra overflaten i kassetter skrus sammen til en borestreng. WO 2004/018826 describes a seabed-based drilling rig where pipes lowered from the surface in cassettes are screwed together to form a drill string.
WO 99/15758 omhandler en fremgangsmåte for anvendelse ved havbasert boring hvor borevesken trekkes ut av stigerøret nær havbunnen. WO 99/15758 deals with a method for use in offshore drilling where the drilling fluid is extracted from the riser near the seabed.
Oljeindustrien har i dag utviklet mye avansert utstyr for fjernstyrte undervannsopera-sjoner. Dette er teknologier som er tilgjengelige og kan benyttes i fjernstyrte boreope-rasjoner der boreutstyret plasseres direkte på havbunnen. The oil industry has today developed a lot of advanced equipment for remotely controlled underwater operations. These are technologies that are available and can be used in remotely controlled drilling operations where the drilling equipment is placed directly on the seabed.
Det er videre nødvendig å etterkomme myndighetenes relativt strenge krav til miljø-forurensing og målsetning om null-utslipp til omgivelsene. It is also necessary to comply with the authorities' relatively strict requirements for environmental pollution and the goal of zero emissions to the environment.
Kjent teknikk angir ingen løsning på disse forhold i relasjon til borerigger som er anbrakt på havbunnen. Known technology does not provide a solution to these conditions in relation to drilling rigs that are placed on the seabed.
Oppfinnelsen har til formål å avhjelpe eller redusere i det minste én av ulempene ved kjent teknikk. The purpose of the invention is to remedy or reduce at least one of the disadvantages of known technology.
Formålet oppnås i henhold til oppfinnelsen ved de trekk som er angitt i nedenstående beskrivelse og i de etterfølgende patentkrav. The purpose is achieved according to the invention by the features indicated in the description below and in the subsequent patent claims.
En borerigg i overensstemmelse med oppfinnelsen er anbrakt på havbunnen hvor boreriggen er tettende kapslet i forhold til omgivelsene og kjennetegnet ved at boreriggens koplingsenhet, som omfatter skrueanordninger for sammen- og fraskruing rør, for rør er lukket, forsynt med tetninger mot røret og tilkoplet en oppsamler og utskiller for væske. A drilling rig in accordance with the invention is placed on the seabed where the drilling rig is hermetically encapsulated in relation to the surroundings and characterized by the fact that the drilling rig's coupling unit, which includes screw devices for connecting and unscrewing the pipe, for the pipe is closed, provided with seals against the pipe and connected to a collector and secretes for liquid.
Utskilleren er koplet til et sirkulasjonsanlegg som er innrettet til å kunne sirkulere væske gjennom koplingsenheten, idet sirkulasjonsanlegget foruten utskilleren omfatter en pumpe samt rørledninger. The separator is connected to a circulation system which is designed to be able to circulate liquid through the coupling unit, as the circulation system includes a pump and pipelines in addition to the separator.
Sirkulasjonsanleggets innløp kommuniserer med ett av koplingsenhetens øvre eller nedre parti, mens sirkulasjonsanleggets utløp kommuniserer med det andre av koplingsenhetens øvre eller nedre parti. The circulation system's inlet communicates with one of the coupling unit's upper or lower part, while the circulation system's outlet communicates with the other of the coupling unit's upper or lower part.
Væsketrykket er fortrinnsvis mindre på boreriggens innside enn på boreriggens utside, hvorved væske i boreriggen er forhindret fra å strømme ut til boreriggens omgivelser. The fluid pressure is preferably less on the inside of the drilling rig than on the outside of the drilling rig, whereby liquid in the drilling rig is prevented from flowing out to the surroundings of the drilling rig.
Utskilleren er koplet til for eksempel en beholder for utskilt materiale, idet beholderen, når den er fylt opp, kan skiftes ut med en ny beholder og bringes opp til overflaten for videre behandling av det utskilte materialet. Boreriggen kan omfatte flere beholdere for utskilt materiale. The separator is connected to, for example, a container for excreted material, as the container, when filled, can be replaced with a new container and brought to the surface for further treatment of the excreted material. The drilling rig may include several containers for separated material.
Beholderne som skal inn i og ut av boreriggen sluses fortrinnsvis inn og ut via sluse-anordninger. The containers that are to enter and exit the drilling rig are preferably sluiced in and out via sluice devices.
En anordning ifølge oppfinnelsen tilveiebringer en løsning for å kunne ta hånd om for eksempel borefluid som strømmer ut under fråkopling av rør, idet væsken som befinner seg inne i koplingsenheten sirkuleres gjennom utskilleren. A device according to the invention provides a solution to be able to take care of, for example, drilling fluid that flows out during pipe disconnection, as the liquid inside the coupling unit is circulated through the separator.
I det etterfølgende beskrives et ikke-begrensende eksempel på en foretrukket utførel-sesform som er anskueliggjort på medfølgende tegninger, hvor: Fig. 1 viser en prinsippskisse av en kapslet borerigg med forbindelse til et overflatefar-tøy; Fig. 2 viser en prinsippskisse av et automatisert boredekk som omfatter en kapslet koplingsenhet for sammen- og fraskruing av rørseksjoner; Fig. 3 viser den kapslede koplingsenhet for rørseksjoner; In what follows, a non-limiting example of a preferred embodiment is described which is visualized in the accompanying drawings, where: Fig. 1 shows a principle sketch of a encapsulated drilling rig with connection to a surface vessel; Fig. 2 shows a principle sketch of an automated drilling deck which comprises a encapsulated coupling unit for connecting and unscrewing pipe sections; Fig. 3 shows the encapsulated coupling unit for pipe sections;
Fig. 4 viser et vertikalsnitt gjennom koplingsenheten for rørseksjoner; og Fig. 4 shows a vertical section through the coupling unit for pipe sections; and
Fig. 5 viser en prinsippskisse av et sirkulasjonsanlegg for rensing av den væskefylte koblingsenhet. Fig. 5 shows a schematic diagram of a circulation system for cleaning the liquid-filled coupling unit.
På tegningene betegner henvisningstallet 1 en kapslet borerigg som er utformet til å kunne settes ned på havbunnen 11. Boreriggen omfatter en øvre seksjon 12 og en nedre seksjon 13, idet et bærende parti 14 hovedsakelig befinner seg i den nedre seksjon 13. In the drawings, the reference number 1 denotes a encapsulated drilling rig which is designed to be able to be set down on the seabed 11. The drilling rig comprises an upper section 12 and a lower section 13, with a supporting part 14 mainly located in the lower section 13.
Boreriggen 1 er styrt fra et overflatefartøy 2 på havoverflaten 5. Mellom boreriggen 1 og overflatefartøyet 2 forløper det en kabel- og slangeforbindelse 3 fra en kabeltrom-melen 4 og ned til boreriggen 1. The drilling rig 1 is controlled from a surface vessel 2 on the sea surface 5. Between the drilling rig 1 and the surface vessel 2, a cable and hose connection 3 runs from a cable drum 4 down to the drilling rig 1.
Boreriggen 1 er forsynt med sugeanker 8 som utgjør en forankring i havbunnen 11. Sugeankrene 8 er forbundet til det bærende parti 14 via delpartier 20. The drilling rig 1 is provided with suction anchors 8 which constitute an anchorage in the seabed 11. The suction anchors 8 are connected to the supporting part 14 via partial parts 20.
På toppen av boreriggen 1 er det anordnet et innslusingslokk 10 for en ikke vist boreenhet, og innslusingslokk 9 for borerørmagasiner 7. Borerørmagasinene 7 settes inn i kapslede siloer 21. On top of the drilling rig 1, there is arranged a sluice cap 10 for a drilling unit not shown, and a sluice cap 9 for drill pipe magazines 7. The drill pipe magazines 7 are inserted into encapsulated silos 21.
Den øvre seksjon 12 omfatter den ikke viste boreenhet med tilhørende ikke vist bore-rørhåndteringsutstyr samt flere borerørsmagasin 7. The upper section 12 includes the not shown drilling unit with associated not shown drill pipe handling equipment and several drill pipe magazines 7.
Et ikke vist sirkulasjonsanlegg for væske som befinner seg i boreriggen 1 er anbrakt i ett av delpartiene 20. A circulation system, not shown, for liquid which is located in the drilling rig 1 is placed in one of the parts 20.
Den nedre seksjon 13 omfatter fjernstyrte og i det minste delvis automatiserte hånd-teringssystemer inkludert en koplingsenhet 24 for sammen- og fråkopling av rør 23. Rørene 23 kan utgjøres av for eksempel bore- eller foringsrør. The lower section 13 comprises remote-controlled and at least partially automated handling systems including a coupling unit 24 for connecting and disconnecting pipes 23. The pipes 23 can be made up of, for example, drilling or casing pipes.
Hele boreriggen 1 er fylt med vann som har et forholdsvis lite undertrykk i forhold til omliggende trykk. The entire drilling rig 1 is filled with water which has a relatively low negative pressure compared to the surrounding pressure.
Koblingsenheten 24, som er forsynt med innløp 31 og utløp 26 for væske henholdsvis i sitt bunnparti og sitt topparti, er forsynt med pakningselementer 25 som omkranser røret 23, og som ekspanderes ved hjelp av væsketrykk for å tette mot røret 23. The coupling unit 24, which is provided with inlet 31 and outlet 26 for liquid respectively in its bottom part and its top part, is provided with sealing elements 25 which encircle the pipe 23, and which expand with the help of liquid pressure to seal against the pipe 23.
Koblingsenheten 24 er for øvrig forsynt med nødvendige skrueanordninger omfattende klembakker 29 og 30 som er operert av hydrauliske sylindre 35, idet klembakkene 29 dreies om rørets 23 senterakse ved hjelp av hydrauliske rotasjonsmotorer 27 via en tannkrans 28. The coupling unit 24 is also provided with necessary screw devices comprising clamping jaws 29 and 30 which are operated by hydraulic cylinders 35, the clamping jaws 29 being rotated about the central axis of the pipe 23 by means of hydraulic rotation motors 27 via a gear ring 28.
Internt utslipp i koblingsenhet 24 sirkuleres ved hjelp av en pumpe 32 gjennom utskilleren 33 via et rør 35 som er koplet til innløpet 31 og et rør 36 som er koplet til ut-løpet 26. Internal discharge in the coupling unit 24 is circulated by means of a pump 32 through the separator 33 via a pipe 35 which is connected to the inlet 31 and a pipe 36 which is connected to the outlet 26.
Utskilte masser 34 tas kontrollert ut fra utskilleren 33. Separated masses 34 are taken out in a controlled manner from the separator 33.
Claims (3)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20061273A NO330847B1 (en) | 2006-03-20 | 2006-03-20 | Apparatus for separating material from a coupling unit in a drilling rig located on the seabed |
| PCT/NO2007/000104 WO2007108697A1 (en) | 2006-03-20 | 2007-03-16 | Sealed pipe coupling unit for a drilling rig device situated on the seabed |
| US11/910,868 US20090014213A1 (en) | 2006-03-20 | 2007-03-16 | Separation Device for Material from a Power Tong on a Drilling Rig Situated on the Sea Bed |
| RU2007143379/03A RU2412328C2 (en) | 2006-03-20 | 2007-03-16 | Pressure tight connecting device for pipes of drill unit on sea bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20061273A NO330847B1 (en) | 2006-03-20 | 2006-03-20 | Apparatus for separating material from a coupling unit in a drilling rig located on the seabed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20061273L NO20061273L (en) | 2007-09-21 |
| NO330847B1 true NO330847B1 (en) | 2011-07-25 |
Family
ID=38522670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20061273A NO330847B1 (en) | 2006-03-20 | 2006-03-20 | Apparatus for separating material from a coupling unit in a drilling rig located on the seabed |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20090014213A1 (en) |
| NO (1) | NO330847B1 (en) |
| RU (1) | RU2412328C2 (en) |
| WO (1) | WO2007108697A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL3124698T3 (en) * | 2015-07-28 | 2018-01-31 | Voegele Ag J | Road finisher with roller indication display device |
| RU2624841C1 (en) * | 2016-04-15 | 2017-07-07 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Underwater drilling module for drilling oil and gas wells |
| CN110617023B (en) * | 2019-09-26 | 2022-06-03 | 中石化石油工程技术服务有限公司 | No drill floor well head operation overflow liquid collection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2056064A1 (en) * | 1970-11-14 | 1972-05-18 | Erno Raumfahrttechnik Gmbh | Underwater drill |
| WO1999015758A2 (en) * | 1997-09-25 | 1999-04-01 | Shell Internationale Research Maatschappij B.V. | Subsea drill fluid pumping and treatment system for deepwater drilling |
| WO2004018826A1 (en) * | 2002-08-22 | 2004-03-04 | Hansen, Henning | Subsea drilling module for use in drilling of oil and gas wells |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US2534480A (en) * | 1947-03-20 | 1950-12-19 | Shannon Joseph | Marine oil drilling machine |
| US2781185A (en) * | 1954-06-02 | 1957-02-12 | Robbins Davis | Drilling apparatus |
| US2937006A (en) * | 1957-05-17 | 1960-05-17 | Sun Oil Co | Underwater drilling rig |
| US3294185A (en) * | 1959-02-02 | 1966-12-27 | Leyman Corp | Automated well drilling apparatus |
| US3353364A (en) * | 1962-04-26 | 1967-11-21 | Gen Dynamics Corp | Underwater well enclosing capsule and service chamber |
| US3661204A (en) * | 1967-09-11 | 1972-05-09 | Gen Dynamics Corp | Underwater drilling methods and apparatus |
| GB1255557A (en) * | 1969-04-09 | 1971-12-01 | Conrad & Hijsch Nv | Drilling apparatus |
| US3693733A (en) * | 1971-03-08 | 1972-09-26 | Texaco Inc | Method and apparatus for avoiding water pollution at an offshore drilling site |
| US3741320A (en) * | 1971-07-12 | 1973-06-26 | Atlas Copco Ab | Subsea drilling assembly |
| NL7601178A (en) * | 1976-02-05 | 1976-08-10 | Taylor Woodrow Const Ltd | DEVICE FOR DRILLING AND SAMPLING / TESTING. |
| US4165690A (en) * | 1976-12-17 | 1979-08-28 | Rock Fall Company Limited | Drill units for drilling and charge laying operations and method of carrying out the operations |
| FR2442953A1 (en) * | 1978-07-04 | 1980-06-27 | Tim Tech Ind Minieres | SUBSEA DRILLING PROCESS AND RELATED DEVICE |
| US4442900A (en) * | 1982-01-28 | 1984-04-17 | Mobil Oil Corporation | Subsea well completion system |
| US4502551A (en) * | 1982-04-01 | 1985-03-05 | Rule Kenneth C | Deep draft drilling platform |
| US4643259A (en) * | 1984-10-04 | 1987-02-17 | Autobust, Inc. | Hydraulic drill string breakdown and bleed off unit |
| US5284213A (en) * | 1992-08-11 | 1994-02-08 | Abb Vetco Gray, Inc. | Subsea drilling cuttings collector and method of drilling |
| US5295536A (en) * | 1992-11-23 | 1994-03-22 | Bode Robert E | Drilling mud container apparatus |
| US6085852A (en) * | 1995-02-22 | 2000-07-11 | The Charles Machine Works, Inc. | Pipe handling device |
| GB9509627D0 (en) * | 1995-05-12 | 1995-07-05 | Sub Drill Supply Ltd | Apparatus for mud bucket |
| FR2757273B1 (en) * | 1996-12-18 | 1999-02-12 | Geodia | BASEMENT RECOGNITION DEVICE |
| AUPO857197A0 (en) * | 1997-08-15 | 1997-09-04 | Benthic Geotech Pty Ltd | Improved methods for seabed piston coring |
| US6138774A (en) * | 1998-03-02 | 2000-10-31 | Weatherford Holding U.S., Inc. | Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment |
| US6062313A (en) * | 1998-03-09 | 2000-05-16 | Moore; Boyd B. | Expandable tank for separating particulate material from drilling fluid and storing production fluids, and method |
| US6457526B1 (en) * | 1999-11-02 | 2002-10-01 | Halliburton Energy Services, Inc. | Sub sea bottom hole assembly change out system and method |
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| NO319436B1 (en) * | 2004-01-29 | 2005-08-15 | Viking Engineering As | Drilling fluid collection device |
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-
2006
- 2006-03-20 NO NO20061273A patent/NO330847B1/en not_active IP Right Cessation
-
2007
- 2007-03-16 RU RU2007143379/03A patent/RU2412328C2/en not_active IP Right Cessation
- 2007-03-16 WO PCT/NO2007/000104 patent/WO2007108697A1/en active Application Filing
- 2007-03-16 US US11/910,868 patent/US20090014213A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2056064A1 (en) * | 1970-11-14 | 1972-05-18 | Erno Raumfahrttechnik Gmbh | Underwater drill |
| WO1999015758A2 (en) * | 1997-09-25 | 1999-04-01 | Shell Internationale Research Maatschappij B.V. | Subsea drill fluid pumping and treatment system for deepwater drilling |
| WO2004018826A1 (en) * | 2002-08-22 | 2004-03-04 | Hansen, Henning | Subsea drilling module for use in drilling of oil and gas wells |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2007143379A (en) | 2009-05-27 |
| NO20061273L (en) | 2007-09-21 |
| WO2007108697A1 (en) | 2007-09-27 |
| RU2412328C2 (en) | 2011-02-20 |
| US20090014213A1 (en) | 2009-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CHAD | Change of the owner's name or address (par. 44 patent law, par. patentforskriften) |
Owner name: ROBOTIC DRILLING SYSTEMS AS, NO |
|
| MM1K | Lapsed by not paying the annual fees |