AU2008215204A1 - Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel - Google Patents
Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel Download PDFInfo
- Publication number
- AU2008215204A1 AU2008215204A1 AU2008215204A AU2008215204A AU2008215204A1 AU 2008215204 A1 AU2008215204 A1 AU 2008215204A1 AU 2008215204 A AU2008215204 A AU 2008215204A AU 2008215204 A AU2008215204 A AU 2008215204A AU 2008215204 A1 AU2008215204 A1 AU 2008215204A1
- Authority
- AU
- Australia
- Prior art keywords
- mobile equipment
- vessel
- equipment according
- drill floor
- mast
- 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.)
- Abandoned
Links
- 238000005553 drilling Methods 0.000 title claims description 27
- 238000010276 construction Methods 0.000 title claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 239000004568 cement Substances 0.000 description 16
- 239000004020 conductor Substances 0.000 description 14
- 238000003860 storage Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000010428 baryte Substances 0.000 description 2
- 229910052601 baryte Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241001244708 Moroccan pepper virus Species 0.000 description 1
- 241000724284 Peanut stunt virus Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding 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
- 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
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Description
WO 2008/100151 PCT/N02008/000052 Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel The present invention relates to mobile equipment, and more particularly to the 5 composition thereof, for use during riserless drilling, well intervention, subsea construction and the like from a dynamically positionable vessel having a moonpool. Today, a number of the processes relating to offshore oil and/or gas exploration or production are carried out from specially designed drilling vessels or platforms that 1o have a fixed derrick for use in this connection. In addition, various other vessel types must be hired in, such as platform supply vessels (PSV), anchor handling vessels (AHV) and multipurpose vessels (MPV). These additional vessels are generally dynamically positionable and have moonpools. 15 It would of course be cost-effective if the last-mentioned vessel types also could be used, for example, in connection with the actual drilling during hydrocarbon exploration. This could mean increased utilisation of a hired vessel for the operator and at the same time a reduction in the need to use different vessel types during the overall process. 20 Accordingly, one of the main objects of the present invention is to reduce the use of such costly drilling vessels or platforms during hydrocarbon exploration or production, so that riserless drilling, well intervention, subsea construction and the like can be carried out from, for example, already existing dynamically positionable vessels having 25 a moonpool. This object is achieved with mobile equipment of the type mentioned in the introduction, the equipment comprising, as disclosed in the characterising clause of claim 1, two masts located at the moonpool, a yoke extending between and movably arranged on the masts, a hydraulic top drive mounted on the yoke, and a drill floor mountable in connection with the moonpool. It is also desirable to have economy of 30 space on and a minimum weight increase of the vessel in question, and that the mobile equipment can be mounted without major changes to and conversion of the vessel, and also to have a low centre of gravity. Compared with a specially designed drilling vessel with fixed derrick, the low centre of 35 gravity means that the equipment is lowered considerably, as about 85% of its total weight is lower than four metres from the main deck of the vessel, and also as the drill WO 2008/100151 PCT/N02008/000052 2 floor itself is only built to a level within one metre from the main deck. The space requirement is reduced also in relation to a derrick of standard type. The respective mast can be mounted on a base, preferably of the prefabricated type, and 5 can be laid down on the vessel deck using at least one hydraulic cylinder. Thus, only minor vessel-specific adaptations are required for the vessel in question in relation to the base work and the folding down of the masts. Furthermore, the yoke may be designed to be width-adjustable, thereby permitting alternative positioning of the mast bases. The folding down of the masts with mounted yoke and top drive to a position on 1o the vessel deck provides obvious advantages during relocation from one location to another, and during maintenance and mounting or dismantling of the equipment. The drill floor can be formed so as to be splittable and have a cut-out in the centre for the installation of slips. This permits easy displacement of the drill floor, for example, is when the drill floor must be removed to gain access to the whole of the moonpool. The cut-outs otherwise form a through-opening in the drill floor, for example, for passing through a drill string. An iron roughneck can be provided on the drill floor, which is movably arranged thereon, and likewise an air winch, a hydraulic manipulator arm and the like. It will be appreciated that the low overall height of the drill floor gives 20 advantages when devices of this type are to be brought onto the drill floor. Moreover, the mast base can act as a guide for the splittable drill floor. Reference is now made to the attached drawings which show a preferred embodiment of the invention, in which 25 Fig. 1 is a schematic side elevation, in the longitudinal direction, of equipment according to the invention on board a vessel; Fig. 2 shows the equipment illustrated in Fig. 1, but seen in the transverse direction; 30 Fig. 3 shows the equipment illustrated in Fig. 1, but seen from the top; Fig. 4 is a perspective view of the equipment according to the invention in operative position; and 35 Fig. 5 is a perspective view of the equipment according to the invention in lowered position for maintenance or during relocation of the vessel.
WO 2008/100151 PCT/N02008/000052 3 As already mentioned above, the present invention is intended for use on existing PSVs, AHVs, MPVs and similar vessels that are dynamically positionable and have a moonpool. However, this does not prevent the equipment from being equally suited to 5 be put into service on newly built vessels. Another condition that applies, for example, during drilling and well intervention, is that the vessels have sufficient storage tank capacity for drilling mud, bulk barite/bentonite and bulk cement. This is in addition to the need for accommodation for drill personnel, for example, 15 beds. The bed requirement is slightly smaller in connection with subsea construction operations only. 10 The equipment according to the invention is specifically intended to be used during riserless drilling, well intervention, subsea construction and the like from a dynamically positionable vessel with a moonpool 8. The main components of the equipment are two masts 1 that are located on either side of the moonpool 8, a yoke 6 extending between 15 and movably arranged on the masts, a hydraulic top drive 7 mounted on the yoke and a drill floor 3, 4 that is positionable over the moonpool 8. In Figs. 1 and 2 there is by way of example only shown one drill pipe 14 extending downwards from the hydraulic top drive 7, and one subsea accessory 15 that is mounted 20 on the lower end of the drill pipe. Again by way of example, the subsea accessory may consist of a guide base 16 and a conductor pipe 17 of suitable diameter. Each individual mast 1 is of any suitable design known in the field having sufficient height and load capacity. The mast height is selected for the handling of, for example, 25 drill pipes having a length of 9-13 metres. The lower end of the mast is attached to a mast base 2. The base is dimensioned for distribution of the load from the mast in a way that does not result in overloading and resultant damage to the vessel deck 9 and its underlying supporting structure. The base is attached by welding or bolting. 30 To permit the masts and the equipment located thereon to be laid down in a horizontal position on the vessel deck 9, see Fig. 5, at least one hydraulic cylinder 11 is arranged between the base 2 and the mast 1 which can be secured using a suitable swivel link 10. The cylinder is fastened to the base and mast in any suitable manner, for example, using a pivot joint. Such a possibility of laying down the masts horizontally on or close to the 35 vessel deck is of course advantageous for the vessel's stability during relocation from one location to another.
WO 2008/100151 PCT/N02008/000052 4 The yoke 6 is of any suitable type and is, as mentioned above, arranged for movement up and down along the masts 1 during the actual working procedures. Such a movement along the masts is well known in the field and may be effected (not shown in the drawings) in that the respective mast is in the form of a separate hydraulic mast 5 cylinder, is formed having a chain drive, a rack drive and the like. It is in addition assumed that the yoke is of a width-adjustable type, which, for example, may mean variable positioning of the mast bases 2. A hydraulic top drive 7 is mounted on the yoke 2. Moreover, as shown in Fig. 2, there 10 is also provided a shackle device 12 and lifting gear 13 below the top drive. Heave compensation of any suitable type may also be provided, in a non-illustrated manner, in connection with the top drive. The drill floor 3, 4 is advantageously splittable, which means that the whole moonpool is 8, when required, can be uncovered by pushing the drill floor halves apart without first optionally removing, for example, the drill string. It will be understood that the drill floor halves can be supported displaceably on the mast bases 2. Each drill floor half is made having a cut-out 12. Thus, a through-opening is formed in the drill floor when positioned over the moonpool. A standard drill floor usually has a maximum opening 20 of about 1.32 metres. Slips (not shown) are also mounted in the drill floor opening in the respective half 3, 4 of the drill floor. Otherwise, the drill floor comprises an iron roughneck 5. The iron roughneck is advantageously movably arranged on the drill floor, for example, using non-illustrated rails. As the drill floor is at a level close to the vessel deck 9, this allows easy handling of other tools (not shown in the drawings) such 25 as a manipulator arm, an air winch and others, on the drill deck, for example, using a skid. Apart from the components of the equipment according to the invention as discussed above, it may briefly be mentioned that there is, for example, a need for a hydraulic 30 unit, a power generator if the vessel lacks capacity, an operator cabin, a ramp for handling pipes between the equipment and the vessel deck, a movable pipe handling crane for lifting pipes between storage site on the vessel deck and ramp, equipment containers, a ROV unit, and during drilling and well intervention, mud pumps, and a mobile cement mixer. 35 The aim is that the vessel's own systems should be used as much as possible so as not to unnecessarily take up deck space on board the vessel. The equipment according to the WO 2008/100151 PCT/N02008/000052 5 invention also requires only a minimum of adaptations of the vessel itself, normally solely in connection with the mast bases. A drilling procedure that is the most demanding of the processes involving use of the 5 mobile equipment according to the invention, can, for example, be carried out in the following way: - Loose drilling implements, casing pipes, wellhead, mud, cement, barite and bentonite are loaded onto the vessel. 10 - The vessel is moved to the drilling location and dynamically positioned above the drilling site. - The ROV is deployed and lowered towards the seabed. A basket of 15 transponders is run down on the air winch. Pipes are taken from the storage space on the vessel deck using the pipe handling crane and laid on the ramp. A drilling assembly, including drill bit, direction-measuring tool, drill collar and drill pipe, is taken from the ramp using the lifting gear, put down in the slips and made up by the iron roughneck. The running in of pipes is stopped when the drilling assembly has come 20 down to immediately above the seabed. - Drilling of holes of 80.7 cm. The position of the vessel and the drilling assembly is verified. After location at the bottom, the hole is drilled to the planned depth, usually 65-75 metres below the seabed. The section is drilled with seawater and 25 viscous water-based mud plugs that are pumped by the mud pumps. Seawater is drawn directly from the sea, whilst the viscous mud plugs are pumped from the mud storage tanks. The string is rotated by the top drive, and new drill pipes are introduced constantly during the downward drilling. To be more specific, the string is placed/suspended in the slips, the top drive is unscrewed, a new drill pipe that is lying 30 ready on the ramp is fetched, the new pipe is placed on the top of the string that is in the slips, the pipes are screwed together by the iron roughneck, the top drive is screwed into the new pipe, the string is released from the slips, and the drilling continues until the new pipe has been drilled down. When the planned depth has been reached, the hole is displaced with made-up mud that is pumped from the mud storage tank. The string is 35 pulled out, whilst the individual pipes are unscrewed from each other and placed in the storage space on the vessel deck. That is to say that the string is pulled up until a screw joint is at the right height above the drill floor, the string is put in the slips, the iron WO 2008/100151 PCT/N02008/000052 6 roughneck is moved forward and unscrews the pipe, the pipe is lifted out of the pipe box that is in the slips, the pipe hanging in the lifting gear is moved to the ramp by manipulator arms for guiding to the ramp, the lifting gear is released when the pipe has been laid down on the ramp. The drilling is observed by the ROV. 5 - The installation of conductor pipe of 76.2 cm. The conductor pipe is laid on the ramp using a pipe handling crane. The pipe is moved using the lifting gear and is put in the slips. A new pipe is brought and set in, and the last pipe to be set in is a conductor pipe housing. The pipes generally have a length of about 12 metres. The io conductor pipe of 76.2 cm is installed/run on the drill pipe. Entering of the hole of 91.4 cm is monitored by the ROV. If there is a need for adjustment during the entering of the hole, the vessel is moved. The conductor pipe is placed on the bottom of the hole, and then the top of the conductor pipe housing is about 1.5 metres above the seabed. The conductor string is subsequently cemented by pumping cement through the running 15 string, i.e., the drill string, down the string and out from the bottom thereof, and then - upwards on the outside until the cement comes out on the seabed. The cement is displaced using seawater. After displacement, the cement is on the outside of the whole conductor pipe string and 5 metres inside the bottom thereof. At the bottom of the conductor pipe there is a return valve which prevents the cement from flowing back into 20 the conductor pipe, there is higher pressure on the outside than on the inside because of the density of the cement mix. The cement is mixed in the mobile cement mixer. Cement is blown from the vessel's bulk cement storage tanks to a service tank on the mixer. When the cement mix has the desired density, the cement mix is pumped down in the string. The conductor pipe is held under tension until the cement has set, about 6 25 hours. The running string/drill pipe is then released and can be pulled up and laid out on the vessel deck. - After the conductor pipe of 76.2 cm has been installed and cemented, a hole of 66 cm is usually drilled down from the bottom of the conductor pipe. When this 30 additional hole has been completed, a casing pipe of 50.8 cm is installed and cemented. The drilling is carried out in the same as described above, as is the installation and cementing. The top pipe of the casing string is in the form of a wellhead. Before the vessel leaves the completed borehole, a trawl-proof protective cover is placed on the wellhead top. The cover can be put in place using the air winch. 35 WO 2008/100151 PCT/N02008/000052 7 - If no more processes are to be carried out using the mobile equipment according to the invention, the vessel then goes ashore for dismantling of the equipment, which takes about two days. 5 - When the costly drill rig later comes to the same location that has been prepared as described above, the BOP (blow-out preventer) and the riser can be run directly, i.e., connected to the already mounted wellhead, with parallel retrieval of the protective cover using the air winch. Thus, substantial cost savings are made compared with normal operations, where the actual drilling rig deals with all drilling of the 10 borehole.
Claims (10)
1. Mobile equipment for use during riserless drilling, well intervention, subsea 5 construction and the like from a dynamically positionable vessel with a moonpool (8), characterised in that the equipment comprises two masts (1) which are located at the moonpool (8), a yoke (6) extending between and movably arranged on the masts, a hydraulic top drive (7) mounted on the yoke, and a drill floor (3, 4) mountable in connection with the moonpool (8). 10
2. Mobile equipment according to claim 1, characterised in that the respective mast (1) is arranged on a base (2). 15
3. Mobile equipment according to claim 2, characterised in that the respective mast (1) is made foldable by means of at least one hydraulic cylinder (11) located between the base (2) and the mast. 20
4. Mobile equipment according to claim 3, characterised in that the respective mast (1) is connected to the base by a swivel link (10).
5. 25 Mobile equipment according to any one of the preceding claims, characterised in that the respective mast (1), for movement of the yoke (6), is in the form of a hydraulic mast cylinder, has a chain or rack drive and the like.
6. 30 Mobile equipment according to any one of the preceding claims, characterised in that the yoke (6) is of a width-adjustable type.
7. Mobile equipment according to any one of the preceding claims, characterised in that 35 the drill floor (3, 4) is movably arranged on the bases (2). WO 2008/100151 PCT/N02008/000052 9
8. Mobile equipment according to any one of the preceding claims, characterised in that the drill floor (3, 4) is splittable, and that a cut-out (12) is made in the respective half (3, 4) of the drill floor. 5
9. Mobile equipment according to claim 8, characterised in that the drill floor (3, 4) comprises an iron roughneck (5).
10 10. Mobile equipment according to claim 9, characterised in that the iron roughneck (5) is movably arranged on the drill floor (3, 4).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20070809A NO325441B1 (en) | 2007-02-12 | 2007-02-12 | Mobile equipment for riserless drilling, well intervention, subsea construction from a vessel |
NO20070809 | 2007-02-12 | ||
PCT/NO2008/000052 WO2008100151A1 (en) | 2007-02-12 | 2008-02-11 | Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2008215204A1 true AU2008215204A1 (en) | 2008-08-21 |
Family
ID=38515326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2008215204A Abandoned AU2008215204A1 (en) | 2007-02-12 | 2008-02-11 | Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel |
Country Status (9)
Country | Link |
---|---|
US (1) | US20100116507A1 (en) |
CN (1) | CN101675208A (en) |
AU (1) | AU2008215204A1 (en) |
BR (1) | BRPI0807474A2 (en) |
GB (1) | GB2460562B (en) |
MX (1) | MX2009008528A (en) |
NO (1) | NO325441B1 (en) |
RU (1) | RU2009134107A (en) |
WO (1) | WO2008100151A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7921918B2 (en) * | 2008-06-26 | 2011-04-12 | Bryant Jr Charles Larue | Support apparatus for a well bore tool |
US20110180266A1 (en) * | 2008-06-30 | 2011-07-28 | A.P. Meller-Mærsk A/S | Drill ship for deep sea intervention operations |
NL2007125C2 (en) * | 2011-07-15 | 2013-01-17 | Itrec Bv | Drilling vessel |
US8960301B2 (en) | 2011-08-22 | 2015-02-24 | Halliburton Energy Services, Inc. | Completing underwater wells |
NL2009677C2 (en) | 2012-10-22 | 2014-04-23 | Itrec Bv | A vessel including a drilling installation, and a method of drilling a well using the same. |
SG11201601082SA (en) * | 2013-08-16 | 2016-03-30 | Itrec Bv | Monohull offshore drilling vessel |
WO2015103340A1 (en) * | 2013-12-31 | 2015-07-09 | Helix Energy Solutions Group, Inc. | Well intervention semisubmersible vessel |
NL2012351B1 (en) * | 2014-03-03 | 2015-11-26 | Itrec Bv | Offshore Drilling Vessel. |
SG11201609013QA (en) * | 2014-04-29 | 2016-11-29 | Fincantieri Oil & Gas S P A | Drillship |
BR112018003032A2 (en) * | 2015-08-19 | 2018-09-18 | Drlg Tools Llc | ? well abandonment system without riser, and method for permanently abandoning a well? |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3368509A (en) * | 1966-06-21 | 1968-02-13 | Mcmullen Ass John J | Drill ship |
US4039177A (en) * | 1974-06-13 | 1977-08-02 | Global Marine Inc. | Heave compensation apparatus for a marine mining vessel |
US3939990A (en) * | 1974-06-13 | 1976-02-24 | Global Marine, Inc. | Automatic roughneck |
US4324194A (en) * | 1976-12-10 | 1982-04-13 | Hydra-Rig, Inc. | Stabilized hoist rig for deep ocean mining vessel |
US4200054A (en) * | 1976-12-10 | 1980-04-29 | Elliston Thomas L | Stabilized hoist rig for deep ocean mining vessel |
GB8600053D0 (en) * | 1986-01-03 | 1986-02-12 | Drg Uk Ltd | Off-shore drilling |
NO973972L (en) * | 1997-08-29 | 1999-03-01 | Dsnd Offshore As | Device for a mobile installation, especially an offshore vessel |
US6068066A (en) * | 1998-08-20 | 2000-05-30 | Byrt; Harry F. | Hydraulic drilling rig |
NO311374B1 (en) * | 1998-09-25 | 2001-11-19 | Eng & Drilling Machinery As | Method of holding risers under tension and means for putting risers under tension |
US7644784B1 (en) * | 2004-11-05 | 2010-01-12 | Eagle Rock Manufacturing, Llc | Transport watercraft |
-
2007
- 2007-02-12 NO NO20070809A patent/NO325441B1/en not_active IP Right Cessation
-
2008
- 2008-02-11 AU AU2008215204A patent/AU2008215204A1/en not_active Abandoned
- 2008-02-11 GB GB0915199A patent/GB2460562B/en not_active Expired - Fee Related
- 2008-02-11 BR BRPI0807474-7A2A patent/BRPI0807474A2/en not_active IP Right Cessation
- 2008-02-11 WO PCT/NO2008/000052 patent/WO2008100151A1/en active Application Filing
- 2008-02-11 RU RU2009134107/03A patent/RU2009134107A/en unknown
- 2008-02-11 CN CN200880004769A patent/CN101675208A/en active Pending
- 2008-02-11 MX MX2009008528A patent/MX2009008528A/en not_active Application Discontinuation
- 2008-02-11 US US12/526,676 patent/US20100116507A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
GB0915199D0 (en) | 2009-10-07 |
NO325441B1 (en) | 2008-05-05 |
US20100116507A1 (en) | 2010-05-13 |
BRPI0807474A2 (en) | 2014-05-13 |
CN101675208A (en) | 2010-03-17 |
WO2008100151A1 (en) | 2008-08-21 |
GB2460562A (en) | 2009-12-09 |
NO20070809L (en) | 2007-08-17 |
GB2460562B (en) | 2011-02-09 |
MX2009008528A (en) | 2010-03-01 |
RU2009134107A (en) | 2011-03-20 |
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Legal Events
Date | Code | Title | Description |
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MK1 | Application lapsed section 142(2)(a) - no request for examination in relevant period |