WO2012103623A1 - Subsea crude oil and/or gas containment and recovery system and method - Google Patents
Subsea crude oil and/or gas containment and recovery system and method Download PDFInfo
- Publication number
- WO2012103623A1 WO2012103623A1 PCT/CA2011/000136 CA2011000136W WO2012103623A1 WO 2012103623 A1 WO2012103623 A1 WO 2012103623A1 CA 2011000136 W CA2011000136 W CA 2011000136W WO 2012103623 A1 WO2012103623 A1 WO 2012103623A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crude oil
- recovery system
- gas
- gas containment
- subsea
- Prior art date
Links
- 239000010779 crude oil Substances 0.000 title claims abstract description 75
- 238000011084 recovery Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012546 transfer Methods 0.000 claims description 92
- 239000007789 gas Substances 0.000 claims description 84
- 238000004873 anchoring Methods 0.000 claims description 48
- 239000011261 inert gas Substances 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000011253 protective coating Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000005553 drilling Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 7
- 239000008186 active pharmaceutical agent Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000003305 oil spill Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 235000017899 Spathodea campanulata Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
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- 230000000284 resting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
- E21B43/0122—Collecting oil or the like from a submerged leakage
-
- 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
- B63B35/32—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
Definitions
- the present invention relates to offshore crude oil and/or gas drilling industries.
- the present invention relates to a system and a method for the containment and recovery of crude oil and/or gas from the well opening on the seabed when an offshore platform/rig suffers a failure and the well is leaking crude oil and/or gas uncontrollably.
- the Deepwater Horizon (an ultra-deepwater offshore drilling platform/rig) was drilling at the Macondo Prospect when an explosion on the rig caused by a blowout from a high pressure gas pocket killed 11 crewmen and ignited a fireball visible from 56 km away. The resulting fire could not be extinguished and, on April 22, 2010, the Deepwater Horizon sank, leaving the wellhead gushing at the sea floor and causing the largest offshore oil spill in United States history.
- the Mocando Prospect is an oil and gas prospect in the United States Exclusive Economic Zone of the Gulf of Mexico and located approximately off the coast of Louisiana 60 kilometres (kms) off the shores of Louisiana.
- Pressure is the force per unit area applied in a direction perpendicular to the surface of an object, a common metric unit for pressure is the Pascal (Pa) and has units of Newton per metres square (N/m 2 ). Water pressure increases linearly with depth at a rate of approximately 10kPa per vertical metre of water. At a depth of 1km, water pressure reaches approximately 10 Megapascal (MPa), this is approximately 100 times greater the atmospheric pressure at sea level.
- the first option is to plug the leak, again being very difficult given the extreme water pressure and lack of light.
- the preferable second option is to contain and direct the oil spewing from the well to the sea surface for capture and recovery.
- United States Patent No. 3,481 ,294 to Vincent dated December 2, 1969 describes an anchoring system for a drilling vessel, the system including a large diameter vertical pipe, i.e., a riser pipe.
- the riser pipe is provided with an anchoring system and a chamber contains anchor winches whose cables are connected to anchors in the ocean floor at points surrounding the riser pipe.
- the anchoring system is made sufficiently strong to moor not only the riser pipe but also a drilling vessel.
- the drilling vessel is connected to the vertical pipe by a unique system so that the vessel is able to 'weathervane' around the pipe.
- a drawback of the system of Vincent is that it does not propose a system or method for containing an oil spill.
- United States Patent No. 4,318,442 to Lunde, et al. dated March 9, 1982 describes an apparatus for controlling an underwater well blowout including a vessel with a lower weighted collar vent ports intermediate the top and bottom of the vessel a valve controlled chimney at the top of the vessel, a gas outlet positioned to provide a gas cap in the vessel when the valve is closed with the vessel in position around the blowing well, an oil outlet above the vent ports and below the gas cap and means for pumping substantially only oil from the vessel at a rate to prevent oil from escaping from the vessel to the sea in substantial quantities.
- the method includes the steps of lowering a vessel with a weighted collar, a frustoconical upper section, a valve controlled chimney leading from the upper section, vent parts, an oil outlet above the vent ports and a gas outlet providing a gas cap, over an underwater blowing well with the chimney valve open, seating the vessel on the bottom around and over the blowing well, pumping substantially only oil including entrained gas from the oil outlet and conducting free gas away from the vessel.
- a drawback of the method and apparatus of Lunde is that it installation of a bulky apparatus at the site of the leak on the sea bed; this may prove to be difficult, especially at extreme depths.
- United States Patent No. 4,416,565 to Ostlund dated November 22, 1983 describes a method by collection and separation of oil, gas and water from an offshore oil/gas well and a column for usage by the same.
- the column comprising a vertically arranged tube with a lower end resting on the sea bed and an upper closed end from which gas may be discharged by gas outlet means.
- Oil-gas mixture flowing out of a well head in operation of the column will be retarded by an oil column in the tube, thereby releasing gas which is collected in the upper portion of the column.
- Motion of the oil at the surface of the oil column will be very small, oil thereby flowing over an overflow rim into an overflow channel, from where oil is transferred to the sea surface by oil outlet means.
- the motion of the mixture may be additionally dampened by horizontal webs.
- the column may be operated at sea depths more than 300 meters and at shallow water where the column may be constructed as part of a platform.
- a drawback of the method and column of Ostlund is that it requires installation of a complex apparatus at the site of the leak on the sea bed; this may prove to be difficult, especially at extreme depths.
- the collector apparatus including a collector element with an extended, open base and an upper portion enclosing a volume to receive fluid (substantial quantities of gas and lesser quantities of oil) rising, in the water, from the wellhead, and a riser connected to the collector element and extending thereabove to conduct fluid therefrom, is characterized in that the collector element is adapted for fixable attachment to the ocean floor about the seabottom well head prior to any blow-out, and the upper portion of the collector element further includes a relief passage from its interior to the exterior of the collector apparatus, the release passage adapted to vent excess gas from the collector apparatus during initial stages of any blow-out.
- the relief passage is valved to allow the passage to be closed after the initial stages of any blow-out to limit escape of released oil and reduce the amount of water collected and the collector includes a drilling port adapted to allow drilling operations to proceed therethrough.
- a drawback of the collector apparatus of Milgram is that it requires installation over the wellhead and affixed to the seabed prior to a blowout.
- United States Patent No. 4,323,118 to Bergmann dated April 6, 1982 teaches an apparatus for controlling and preventing an oil blowout comprising a hollow frustoconical dome which is disposable over the end of a well discharge pipe or an offshore rig discharge pipe.
- a hollow frustoconical dome which is disposable over the end of a well discharge pipe or an offshore rig discharge pipe.
- At the top of the hollow dome is an axially disposed main valve for the blowoff of oil or gas escaping from the discharge pipe.
- a plurality of concentrically disposed two-way valves are disposed at the top of the dome about the main valve. With the main valve and the concentrically disposed valves open for the blow off of liquids and fluids, the dome is lowered over the discharge pipe. When the dome is fully lowered, it seats on the bottom surface surrounding the outlet of the discharge pipe.
- Floatation tanks are connected to the surface by air lines which are actuated to adjust the buoyancy of the device to raise or lower it so that it can be lowered over a well to trap the discharge from the well.
- the assembled device can be towed by a tug into position or can be assembled in the water at the site and lowered over the well without the necessity of the tug coming into the effluent discharge area above the well.
- an anchor can be placed in the seabed directly upstream of the well at some distance from the well.
- the device can be tied to the anchor by a tow line of exact length equal to the distance between the well and the anchor and positioned either to the right or left of the well so that the force of the current will cause the device to swing about the anchor so that guidance from a surface vessel can position the device over the well.
- a drawback of the system of Miller is that it requires installation of a complex system at the site of the wellhead on the sea bed; this may prove to be difficult, especially at extreme depths.
- United States Patent No. 4,417,624 to Gockel dated November 29, 1983 describes a method and apparatus for controlling the flow of fluids from an open well bore, fluidly communicating the surface and a subterranean formation, the apparatus comprising (a) a slideable base; (b) a support positioned on the base; (c) a pipe engaging device positioned on the support above the base to urge a pipe into the open well bore; and, (d) a pipe straightener positioned on the support means to engage the pipe and straighten it above the well bore.
- a method for using the apparatus of the present invention is also disclosed.
- a drawback of the method and apparatus of Gockel is that it requires installation of a complex apparatus at the site of the wellhead on the sea bed; this may prove to be difficult, especially at extreme depths.
- United States Patent No. 4,568,220 to Hickey dated February 4, 1986 describes a system and a method for controlling and/or capping undersea oil or gas well blowouts are disclosed.
- the system includes a mound and a road bed prepared about and leading to an undersea well head, a base plate having an anchoring track and secured onto the mound and about the well head, a collar member secured to the base plate above the well head by being connected to the anchoring track thereof, a structure also erected on the base plate adjacent the well head, a capping member secured to the structure, a bag floating on the sea surface above the well head and a flexible hose connected between the collar member and the bag.
- At least portions of the mound and the road bed are formed on shore of a plurality of preformed segments, then transported to and assembled in situ on the sea floor about the well head.
- a remotely controlled device is provided designed to do work about the well head and accommodated on the road bed leading to the well head.
- the present invention was conceived and developed having regard to the known prior art and with the purpose of providing a Subsea Crude Oil and/or Gas Containment and Recovery System and Method.
- the present invention provides an easily deployable subsea crude oil and/or gas containment and recovery system and related method.
- a subsea crude oil and/or gas containment and recovery system comprising an anchoring means for providing a stable support structure for the system.
- Guide cables are releasably affixed to the anchoring means by way of guide cable connectors and are used for orienting and/or aligning and supporting the system.
- a guide cable hoisting means is used for lowering the anchoring means by way of the guide cables.
- Transfer sections are releaseably and slideably connected to the guide cables by way of cable guiding rings and are used for containing and directing crude oil and/or gas from a wellhead or a crude oil and/or gas leak on a seabed floor.
- a transfer section hoisting means is used for lowering the transfer sections along the guide cable by way of a hoisting cable.
- a method of deploying a subsea crude oil and/or gas containment and recovery system comprises the steps of locating a location of a wellhead or a crude oil and/or gas leak on a seabed floor by way of a locating means. Lowering an anchoring means in a substantially level manner with respect to the seabed floor to the seabed floor encircling the wellhead or the crude oil and/or gas leak by way of a guide cable hoisting means and guide cables into an anchoring position. Tensioning the guide cables by way of a load control system that controls the guide cable hoisting means. Securing a transfer section to the guide cables by way of guide cable connectors.
- Figure 1 is a cross-sectional view approximately mid-ship of a vessel modified for use with an embodiment of the present invention
- Figure 2 is a side view of a transfer pipe according to an embodiment of the present invention
- Figure 3 is a top view of a transfer pipe according to an embodiment of the present invention
- Figure 4 shows a blown-up view of a proposed no-load release of a transfer pipe according to an embodiment of the present invention
- Figure 5 shows a blown-up view of a proposed cable guiding ring system according to an embodiment of the present invention.
- a general idea of the Subsea crude oil and/or gas containment and recovery system and method is to provide a piping system to contain the oil leaking out of a wellhead on the seabed and direct it to the sea surface in a controlled fashion.
- the bottom of the piping system would encircle the leaking wellhead forcing the leaking crude oil and/or gas to be contained within it and direct it upwards along the piping system.
- Figure 1 shows a cross-sectional view mid-ship of a vessel (20) modified for use with the Subsea crude oil and/or gas recovery and trapping system and method.
- the system broadly comprises an anchoring means (22), guide cable hoisting means (8), guide cables (16), guide cable reels (12), transfer sections (6), and a transfer section hoisting means (1).
- the anchoring means (22) is preferably a heavy annular ring dimensioned to encircle a wellhead on the seabed floor and is purposed to give a stable support structure for supporting the transfer sections (6).
- a rigidly affixed annular ring with base gasket (21) is provided on an upper side of the anchoring means (22) and the inner diameter of the annular ring accommodates the outer diameter of the transfer section.
- Rigidly affixed cable connectors (15) are provided and evenly distributed proximate the outer edge on the upper side of the anchoring means (22).
- the anchoring means (22) also has protrusions on a bottom side so as to inhibit lateral movement when in an anchoring position.
- the base gasket (21) is purposed for providing connection means to a gasket of a transfer section (6).
- the guide cable hoisting means (8) are used to lower the anchoring means (22) into position on the seabed floor via the guide cables (16) stored on the guide cable reels (12).
- the guide cables (16) are releasably affixed to the anchoring means (22) via guide cable connectors (15) and are of a sufficient length to at least reach the seabed floor, such as, for example, 1.5km in length.
- the guide cables (16) are purposed to ensure that the transfer sections (6) come to rest on the anchoring means (22) or another transfer section (6) in the proper orientation.
- the transfer sections (6) are preferably elongated hollow tubes having a flange (5) at each end for connection to a flange of the anchoring means (22) or of another transfer section (6).
- the transfer sections (6) also have a set of cable guiding rings (40), even more preferable, the transfer sections (6) have two sets of cable guiding rings (40) located at each end thereof.
- the transfer sections may be of a different geometric shape, such as, for example, elongated square tubes or elongated oval tubes.
- the transfer sections (6) are standardized in that each of the transfer sections (6) are identical, providing for an easier deployment.
- the transfer sections (6) are of a hollow double-wall construction. Constructing the transfer sections (6) in this fashion will increase the overall water displacement and lower its submerged displacement mass when compared with a single-wall construction using the same materials.
- the transfer sections (6) are preferably equipped with an inert gas injection system.
- An electronic logic signal derived from the hoisting means (1) and corresponding to the depth of the transfer sections (6) is provided to the inert gas injection system.
- the inert gas injection system modulates the release and control of a high-pressure inert gas that is injected into the double-wall sections of the transfer sections (6) creating in internal gas pressure substantially equal to the external water pressure. The substantially equal internal and external forces will mitigate the crushing forces of the high water pressure forces.
- the transfer section hoisting means (1) is preferably a standard hoist or winch.
- the transfer section hoisting means (1 ) is used to lower the transfer sections (6) via a hoisting cable (2) into the sea along guide cables (16).
- the transfer sections (6) also have a 'no-load' or 'Gravity Release' release mechanism, such as the one depicted in Figure 4.
- the preferred 'no-load' release mechanism comprises angled slots (32) located on opposing inner sides of a transfer tube (6) and a sling (35).
- the sling (35) is affixed to the end of the hoisting cable (2) and comprises two equal length release cables (34) each having a releasable bar (33) of appropriate size affixed to the end thereof.
- the releasable bars (33) When each of the releasable bars (33) are fitted into a respective angled slot (32), and put under load, the releasable bars (33) are forced upwards into their respective angled slots (32), thus providing support for carrying a transfer section (6). Once the transfer sections (6) have been lowered into place and no-load exists, the releasable bars (33) fall out of their respective angle slot (32) and the sling can be returned to the surface for lowering the next transfer section (6).
- the releasable bars (33) may also be a standard hoisting hardware item such as an open hook.
- the cable guiding rings (40) preferably comprises two portions, a first portion (40a) having a smooth semi-circle notch and is rigidly affixed to the transfer section (6), a second portion (40b) having a smooth semi-circle notch and can be releasably affixed to the first portion (40a) via fastening means.
- first portion (40a) and the second portion (40b) are fastened together the cable guiding ring (40) forms a circular hole that encircles a guiding cable (16).
- the cable guiding rings (40) provide for a secure attachment of the transfer sections (6) to the cable guides (16).
- the Subsea crude oil and/or gas recovery and trapping system and method preferably comprises an anchoring means (22) that is adjustable allowing it to fully enclose larger wellheads, or the system and method comprises multiple anchoring means (22) each of a different diameter such that the most appropriate size may be used.
- an anchoring means (22) that is adjustable allowing it to fully enclose larger wellheads, or the system and method comprises multiple anchoring means (22) each of a different diameter such that the most appropriate size may be used.
- a tapered transfer section (not shown) is provided to bridge the larger diameter anchoring means (22) to the preferred standard sized transfer sections. The taper of the tapered transfer section gives it a frustoconical shape.
- the preferred number of number of guide cables (16) to be used is 4 circumferentially spaced at 90° apart. Accordingly, the number of guide cable hoisting means (8), guide cable reels (12), cable connectors (15), and the number of cable guiding rings (40) in a set would also be 4. However, more or less guide cables, and related features, are envisioned.
- the transfer sections (6) and the tapered transfer section are preferably made of a strong and rigid material having the capability of resisting compressive forces, such as the water pressure forces and the forces of the stacked transfer sections (6) pushing down and capable of being used in a salt water environment.
- the transfer sections (6) and the tapered transfer section are made of hot-rolled plain carbon steel with a protective coating.
- the practice coating is rubber.
- the guide cables (16) are preferably pre-lubricated 1" to 2" steel cable having high tensile strength.
- Alignment of the stack of transfer sections and the connections between each of the transfer sections (6) are preferably made via the guide cables (16) and the joint connections are kept substantially sealed by the force of transfer sections (6) pushing down on previously lowered transfer sections (6).
- the density of sea water (p ⁇ 1022 kg/m 3 ) is greater than the density of crude oil (see Table 1).
- the deeper the wellhead is below sea level the greater the pressure difference between the inside of the transfer sections (6) containing mostly crude oil and/or gas and outside of the transfer sections (6) being sea water. If the pressure difference becomes too great the transfer sections may collapse. Accordingly, to lessen the pressure difference the transfer sections (6) may be provided with pressure balance ports (9) to allow sea water to also occupy the volume inside the transfer section system.
- the transfer section hoisting means (1) may be operable from a Deck Level 3 and would define a centre line for lowering the transfer sections (6) and allow for vertical orientation of transfer sections (6).
- the transfer sections (6) may also be stored on Deck Level 3.
- the guide cable hoisting means (8) and guide cable reels (12) may be located on Deck Level 2 and are positioned to have a centre line equal to the centre line of transfer section hoisting means (1 ).
- other configurations are envisioned.
- the location of the leaking wellhead on the seabed is located via a locating means, such as the global positioning system or a remote controlled submersible. Determination of the size of the wellhead is acquired in order to choose an appropriately sized anchoring means (22) or to adjust the size of an adjustable anchoring means.
- the anchoring means (22) is then lowered to the seabed encircling the wellhead within the anchoring means (22).
- the anchoring means (22) is lowered via the guide cable hoisting means (8), when lowering the anchoring means (22) the guide cable hoisting means (8) are in synchronous operation to ensure that the anchoring means (22) remains substantially level with the seabed surrounding the wellhead that the anchoring means (22) will be anchored upon.
- the first standard sized transfer section (6) or the tapered transfer section (if a larger or adjusted size anchoring means is used) is prepared for lowering.
- the releasable bars (33) of the sling (35) are placed in their respective angled slot (32) and placed under load over the vessel exit shaft (25), the guide cables (16) are secured in the cable guiding rings (40) and the transfer section (6) is lowered until it comes to rest on the anchoring means (22).
- the crude oil and/or gas may be recovered and/or capture for processing by any means currently known in the art.
- the subsea crude oil and/or gas containment and recovery system may be installed prior to a leak.
- the present invention is applicable to offshore drilling industries for minimizing the environmental effects of leaking crude oil and/or gas from a wellhead on the seabed by containing and directing the leaking crude oil and/or gas to a specific spot on the sea surface for recovery.
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geochemistry & Mineralogy (AREA)
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/983,384 US8911176B2 (en) | 2011-02-04 | 2011-02-04 | Subsea crude oil and/or gas containment and recovery system and method |
EP11857754.3A EP2670946B1 (en) | 2011-02-04 | 2011-02-04 | Subsea crude oil and/or gas containment and recovery system and method |
CA2826175A CA2826175C (en) | 2011-02-04 | 2011-02-04 | Subsea crude oil and/or gas containment and recovery system and method |
PCT/CA2011/000136 WO2012103623A1 (en) | 2011-02-04 | 2011-02-04 | Subsea crude oil and/or gas containment and recovery system and method |
AU2011357651A AU2011357651B2 (en) | 2011-02-04 | 2011-02-04 | Subsea crude oil and/or gas containment and recovery system and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2011/000136 WO2012103623A1 (en) | 2011-02-04 | 2011-02-04 | Subsea crude oil and/or gas containment and recovery system and method |
Publications (1)
Publication Number | Publication Date |
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WO2012103623A1 true WO2012103623A1 (en) | 2012-08-09 |
Family
ID=46602030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2011/000136 WO2012103623A1 (en) | 2011-02-04 | 2011-02-04 | Subsea crude oil and/or gas containment and recovery system and method |
Country Status (5)
Country | Link |
---|---|
US (1) | US8911176B2 (en) |
EP (1) | EP2670946B1 (en) |
AU (1) | AU2011357651B2 (en) |
CA (1) | CA2826175C (en) |
WO (1) | WO2012103623A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US9651374B1 (en) * | 2014-04-07 | 2017-05-16 | The United States Of America As Represented By The Secretary Of The Navy | Method and system for measuring physical phenomena in an open water environment |
CN104554674B (en) * | 2014-12-25 | 2016-03-30 | 中国海洋大学 | A kind of along cable crank motion control mechanism |
DE102018218945A1 (en) | 2018-11-07 | 2020-05-07 | Henkel Ag & Co. Kgaa | Process for gentle, chemical hair treatment |
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US3339512A (en) * | 1966-06-17 | 1967-09-05 | Siegel Gilbert | Multiple storage and redistribution facility |
US3658181A (en) * | 1970-05-22 | 1972-04-25 | Thomas O Blair | Underwater oil leakage collecting apparatus |
US3902553A (en) * | 1974-02-08 | 1975-09-02 | Allen A Jergins | Offshore drilling at deep water locations |
WO1982001387A1 (en) * | 1980-10-22 | 1982-04-29 | Enn Vallak | Equipment for the recovery of oil flowing out of sub-water ground |
WO1993011305A1 (en) * | 1991-12-03 | 1993-06-10 | Hans Seternes | Device for deploying a barrier structure in a body of water |
FR2804935A1 (en) * | 2000-02-11 | 2001-08-17 | Bouygues Offshore | Recovery of pollutants which float on water from a sunken or damaged vessel on the seabed |
US20050025574A1 (en) * | 2002-12-23 | 2005-02-03 | Lazes Richard J. | Subsea oil collector |
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US1830061A (en) * | 1929-02-11 | 1931-11-03 | Los Angeles Testing Lab | Protective hood for oil and gas wells |
US3561220A (en) * | 1969-03-26 | 1971-02-09 | Chester George Riester | Method and apparatus for containing well pollutants |
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- 2011-02-04 US US13/983,384 patent/US8911176B2/en not_active Expired - Fee Related
- 2011-02-04 WO PCT/CA2011/000136 patent/WO2012103623A1/en active Application Filing
- 2011-02-04 AU AU2011357651A patent/AU2011357651B2/en not_active Ceased
- 2011-02-04 CA CA2826175A patent/CA2826175C/en not_active Expired - Fee Related
- 2011-02-04 EP EP11857754.3A patent/EP2670946B1/en not_active Not-in-force
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Also Published As
Publication number | Publication date |
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US8911176B2 (en) | 2014-12-16 |
CA2826175A1 (en) | 2012-08-09 |
EP2670946A1 (en) | 2013-12-11 |
AU2011357651A1 (en) | 2013-08-22 |
EP2670946A4 (en) | 2017-04-19 |
US20140017010A1 (en) | 2014-01-16 |
EP2670946B1 (en) | 2018-04-04 |
CA2826175C (en) | 2015-11-24 |
AU2011357651B2 (en) | 2016-09-01 |
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