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WO2003062536A1 - Equipement de protection contre le petrole - Google Patents

Equipement de protection contre le petrole Download PDF

Info

Publication number
WO2003062536A1
WO2003062536A1 PCT/SE2003/000127 SE0300127W WO03062536A1 WO 2003062536 A1 WO2003062536 A1 WO 2003062536A1 SE 0300127 W SE0300127 W SE 0300127W WO 03062536 A1 WO03062536 A1 WO 03062536A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
absorbing
matter
oil
ballast
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.)
Ceased
Application number
PCT/SE2003/000127
Other languages
English (en)
Inventor
Erling Blomberg
Per Nyman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blomberg Erling AB
Sydkraft Varme Syd AB
Original Assignee
Blomberg Erling AB
Sydkraft Varme Syd AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from SE0200248A external-priority patent/SE0200248D0/xx
Priority claimed from SE0200240A external-priority patent/SE0200240D0/xx
Priority claimed from SE0200432A external-priority patent/SE0200432D0/xx
Priority claimed from SE0201032A external-priority patent/SE0201032D0/xx
Priority claimed from SE0202827A external-priority patent/SE0202827D0/xx
Priority claimed from SE0203051A external-priority patent/SE0203051D0/xx
Priority claimed from SE0203106A external-priority patent/SE0203106D0/xx
Priority claimed from SE0203209A external-priority patent/SE0203209D0/xx
Priority claimed from SE0203341A external-priority patent/SE0203341D0/xx
Priority claimed from SE0203487A external-priority patent/SE0203487D0/xx
Application filed by Blomberg Erling AB, Sydkraft Varme Syd AB filed Critical Blomberg Erling AB
Publication of WO2003062536A1 publication Critical patent/WO2003062536A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
    • E02B15/0842—Devices for reducing the polluted area with or without additional devices for removing the material adapted to be towed for operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

Definitions

  • the present invention relates to a device for absorbing matter, such as oil, from an area, comprising a sheath covering a core of predominantly sorbent material.
  • the present invention also relates to an arrangement for shielding off a water surface area, such as a boom. It comprises a vertically pendent, flexible shield, thereto vertically, in spaced apart relationship fastened, in relation to the flexible shield rigid battens, and below the shield hanging ballast.
  • Oil cleaning on- and offshore is unfortunately still of present interest and an important matter for protection of the environment.
  • To professionally handle oil recovery operations at sea access to suitable boats and oil recovery systems including booms for containing, gathering and concentrating the oil, skimmers and storage capacity for recovered oil and means for transporting the oil ashore is of outmost importance.
  • These objects must also be adapted to work together under sometimes-harsh conditions.
  • not all oil -cleaning operations take place at sea, but also in smaller streams, wells, and lakes or even on land such as on beaches.
  • certain types of equipment are better suited than other. It would though be advantageous if the equipment were interchangeable or possible to combine in many different ways.
  • An oil absorbent of the kind known in the prior art - of oil protection usually comprises a long, round casing filled with a sorbent material.
  • the oil absorbent is put in the water or on the land where the oil is to be removed.
  • the oil is soaked into the absorbent through the casing and into the sorbent material .
  • Such matters as the casing material, the sorbent material and the properties of the oil itself govern the speed by which the oil is soaked into the absorbent.
  • An oil boom of the kind known in the prior art usually consists of a long slender "curtain" of suitable material which typically has a ballast underneath in the form of a chain laying in a pocket for stabilisation the boom.
  • the boom is often either used as a shield for limiting the spreading of the oil, or as a collector of the oil, for example by holding the boom between two boats, which are passing over a water surface containing oil.
  • the boom must be stiff enough not to collapse during its towing and by doing so letting out the oil above or under the boom, but yet flexible enough to follow the curvature of the waves.
  • the object of the present invention is to provide oil protection means that at least to some extent overcome the above-mentioned problems and that are simple to use, economical and environmentally friendly and yet well adapted for their purpose. These and other objectives are achieved by device for absorbing matter according to the claim 1.
  • Preferred embodiments of the invention are disclosed in accordance with the dependent claims 2 - 17.
  • An arrangement for shielding off a water surface area according to the invention is also disclosed having two different embodiments in accordance with the claims 18 and 27. Preferred embodiments of the arrangements are given in the dependent claims 19 - 26 and 28 - 34.
  • a device for absorbing matter, such as oil, from an area comprising a sheath covering a core of predominantly sorbent material.
  • Said device is partitioned into at least two, at usage, horizontally adjacent absorbing chambers, whereby said partitioning provides further sides there along, which are having vertical extension and are being exposed to said matter.
  • the matter to be soaked into the device is in contact with a larger surface of the device than in a traditional one. Instead of being in contact with only the sides along the traditional device, the matter is floating on the water surface and in to the transversal partitionings .
  • the vertical extension is important since the layer of matter often also has a depth and hence the absorbing chambers created by the partitionings are "put into” the matter. Hereby the matter is quicker soaked into the device and the time for cleaning after for instance an oil leakage can be reduced.
  • the sides may naturally also have a horizontal extension as well.
  • each absorbing chamber is having a length-width ratio of a circumscribed rectangle of preferably 3:1 or less, more preferably 2:1 or less and most preferably 1:1.
  • the absorbing chambers may be triangular, rectangular or have a comparable form. In order to gain the best soaking effect it is desirable to get the most surface turned towards the matter in relation to the volume of the absorbing chambers. Therefore, it is most preferable to have a length-width ratio of 1:1, though this in not always possible.
  • the inner form of the well directs the form of the device and indirect the form of the absorbing chambers.
  • said absorbing chambers are pillow-shaped.
  • said sheath is a non-woven material.
  • a non-woven material is open enough for the matter to penetrate into the sorbent material, and closed enough for containing the sorbent material as well as the oil after entry.
  • said sheath is double walled. Thereby the effect of the sheath material is increased.
  • the capillary forces are increased and more matter can be contained within the sheath.
  • said core further comprises buoyancy means.
  • the core material and the matter have a density that is lower than water, the device will float in the water. Nevertheless, to further increase the buoyancy of the device the core can be supplied with buoyancy means.
  • the buoyancy means can be used to control the behaviour of the device in the water.
  • Said buoyancy means suitably comprises cellular plastic lumps. These can be mixed with the core material for easy filling of the sheath.
  • said sorbent material is principally a non-expanding material .
  • said sorbent material is predominantly a cellulose material.
  • Very good absorption properties are gained if said cellulose material predominantly is pine bark. The best absorption effect is reached if said pine bark is dried to a dry content of preferably 90 % or more, more preferably 93 % or more and most preferably 95 % or more.
  • the device is alongside supplied with handles, whereby the device easily is removed from the water after it has served its purpose.
  • said device at its ends is supplied with detachable interconnection means.
  • a convenient and fast way to connect and again disconnect the device said interconnection means are hook-and-loop fasteners.
  • said device alongside is supplied with detachable connecting means.
  • said connecting means are spring hooks .
  • the present invention also discloses a second aspect, an arrangement for shielding off a water surface area, such as a boom. It comprises a vertically pendent, flexible shield, thereto vertically, in spaced apart relationship fastened, in relation to the flexible shield rigid battens, and below the shield hanging ballast. It also has a device for absorbing matter, such as oil, from the water detachably connected to said arrangement in the vicinity of the waterline of said arrangement. By attaching a device for absorbing matter, an easy to use and flexible arrangement is created.
  • the boom cannot only be used to shield off the water surface area or to be towed between boats to gather the matter, but in a stationary mood also collect and remove the matter from the surface.
  • the device is suitably connected to the arrangement at the vicinity of the waterline since it will affect the behaviour of the arrangement the least there.
  • the shield may be constructed of a rubber cloth and the battens of any material having stiffness and strength properties that can withstand the forces from the waves .
  • said ballast is in rigid relationship connected to said battens.
  • a traditional boom has a loosely hanging pocket at its bottom in which a chain or other type of elongate structure is used as ballast.
  • ballast will then always be hanging vertical in the waves of the water, whereas the boom itself if anything will oscillate with the waves, which may lead to oil slipping underneath the boom and reduce its capability of gathering or shielding off the oil .
  • the traditional boom can be compared with a sailing boot having a keel that is hinged. Instead, the present arrangement having the rigid ballast reacts more direct to again guide the battens and the boom straight upward .
  • ballast is connected so said batten by a pin. It is further suitable that said ballast is divided into separate units, each connected to a batten. For handling purposes, this is advantageous since the ballast is concentrated to certain points along the arrangement .
  • buoyancy means within said flexible shield.
  • the buoyancy means may take the form of thick panels of rectangle form, distributed along the shield.
  • said arrangement further comprises connecting means for connection to said device for absorbing matter.
  • Said connecting means are placed at said battens to use the strength of the battens to reinforce the area of connection to avoid unnecessary ruptures of the shield.
  • said connecting means are spring hooks and buckles.
  • an arrangement for shielding off a water surface area such as a boom
  • This arrangement comprises a vertically pendent, flexible shield, thereto vertically, in spaced apart relationship fastened, in relation to the flexible shield rigid battens, and below the shield hanging ballast.
  • said arrangement is adapted for being detachably connected in the vicinity of the waterline of said arrangement to a device for absorbing matter of a kind according to the first aspect of the invention.
  • Fig. 1 is a perspective view of the device for absorbing matter according to the present invention.
  • Fig. 2 is a bottom view of a circular device for absorbing matter according to the present invention together with cross-sections along two lines of the device .
  • Fig. 3a, 3b and 3c are cross-sections of the device for absorbing matter according to the present invention.
  • Fig. 4a and 4b are perspective views of the arrangement for shielding off a water surface area according to the present invention, of which fig. 4a shows one lengthwise side and fig. 4b the other lengthwise side.
  • Fig. 4c to 4f are cross-sections of the arrangement and device according to the present invention, of which fig. 4c is showing only the arrangement and fig. 4d to 4f the arrangement in connection with the device.
  • Fig. 5a is a perspective view of the arrangement for shielding off a water surface area according to the present invention.
  • Fig. 5b and 5c are showing a cross-section of a part at the waterline of an arrangement to which a device according to the present invention is connected.
  • Fig. 6a is a top view over an arrangement and device according to the present invention.
  • Fig. 6b is top view over an arrangement and device according to the present invention.
  • Fig. 1 shows a device 1 for absorbing matter such as oil.
  • the device 1 has a sheath 10 of a non-woven material, for instance made of polypropylene that is needled or thermo bonded, and having a thickness of approx. 1.2 - 1.3 mm and a pore size (d 90 %) of approx. 85 - 90 microns.
  • a sheath 10 ensures that the core material 11 is kept within the sheath and at the same time that the oil is let through into the absorbing chambers 2.
  • the sheath 10 is double walled, i.e. having two layers of the non-woven material to increase the speed of the oil uptake.
  • the core material 11 is pine bark mixed with cellular plastic lumps of polypropylene to control the buoyancy properties of the device 1.
  • a joint boundary line 3 partitions the device 1, by sewing, into two absorbing chambers 2 each containing the bark and lumps core 11.
  • the chambers 2 are filled to approx. 100 % since it is not to expect that the core material 11 is going to expand due to submerging in water or oil.
  • the device 1 is supplied with a handle 4 at one end in order to make the handling thereof easy.
  • the device 1 is intended to float in water as it is shown in the fig., by having either one of the facing sides directed vertically upwards. In this embodiment, having the buoyancy means distributed in the entire core material, it does not matter which of the sides that are directed upwardly.
  • the device 1 is getting a top face and an under face. Along the outer edges of the device 1, it is having vertically extending sides, numbered 5 along the longer sides and 6 along the shorter sides. Due to the joint boundary 3, two new vertically extending sides 7 are created that constitute the 4 th side of each absorbing chamber 2.
  • the absorbing chambers 2 are thus given the form of a pillow.
  • the longer sides of the absorbing chambers 2 are approx. twice as long as the shorter sides thereof .
  • a similar device 1 is shown, which is having four absorbing chambers 2 and having a circular outer shape.
  • the device 2 is shown in a perspective view and from underneath, lying in a circular well 8 in oil 9.
  • a device 1 is shown that is having lengthwise distributed joint boundaries 3 and hence lengthwise distributed absorbing chambers 2.
  • the sheath 10 is covering the core material 11.
  • the device 1 is in this embodiment provided with a sinker 14 in the form of a pocket 13 in which a chain 12 is used as ballast.
  • the oil 9 is normally only a thin layer on top of the water. The oil 9 first penetrates the sheath 10. Thereafter the oil 9 penetrates in to the interior of the absorbing chambers 2 and flows or trickles along the sides downwards and builds up at the bottom of the device 1. Later, as shown in fig.
  • the oil 9 is starting to be absorbed by the core bark 11 and pushes the water aside. Since oil has a lower density than water, this process is further helped by the buoyancy effect.
  • the process is slowed down since the oil 9 must work against gravity. Now the device 1 becomes heavier and is further submerged into the water until it is completely filled with oil 9 and must be replaced.
  • Fig. 4 shows a second aspect of the invention, the arrangement 15 for shielding off a water surface area.
  • the arrangement comprises a boom 15 having a flexible shield 17 of a rubber/plastic material.
  • the shield 17 is flexible in order to follow the movements of the water, but needs stiffening battens or laths 18 in the transversal direction of the arrangement 15 in spaced apart relationship, in order not to collapse.
  • the material of the battens 18 may be any material that is resistive to the corrosive environment in the water and that provides adequate stiffness to the boom 15.
  • the battens 18 may be placed within the flexible shield 17. To keep the boom 15 in its upright position, ballast 21 is needed at the bottom of the shield 17, and buoyancy means 24 within the shield 17.
  • the buoyancy means 24 comprise buoyancy elements 25 of principally rectangular form that are spread along the shield 17.
  • a mantle of shield material covers the buoyancy elements 25.
  • the ballast 21 has the form of a chain 22 that is lying within a pocket of the shield 17.
  • the chain 22 is tightly and rigidly secured to the battens 18 by a pin 26, so that it oscillates in stiff relationship with the battens 18 and shield 17 in the water.
  • handles 23 At the top end of the battens 18 there is provided handles 23 for easy launching and pick-up.
  • an absorbent 16 is connected for collecting the oil that is being gathered by the arrangement 15.
  • the absorbent 16 is having a sheath 10 of double layered, non-woven material and a core of pine bark mixed with cellular plastic lumps of polypropylene to control the buoyancy properties.
  • the absorbent 16 is connected to the arrangement 15 by connection means 19 at the battens at the waterline. Since the connection of the absorbent 16 to the arrangement 15 is slightly affecting the buoyancy of the arrangement 15, and the filling ratio of oil in turn is affecting the buoyancy of the absorbent 16, it is suitable to place the connection means 19 at the waterline of the arrangement 15 calculated in its state without the absorbent 16. Finally, the absorbent 16 is supplied with straps 16 to be connected to the connections means 19 of the boom 15.
  • the arrangement 15 is shown in cross- section at a batten 18 without the absorbent 16 connected thereto.
  • the arrangement 15 is prepared for reception of a device 1 by having connection means 19 at the waterline.
  • a carbine hook is placed at the arrangement 15. It is however, possible that such means instead are placed on the device 1.
  • the carbine hook may be replaced by such fastening means as Velcro tape in order to the ease of use.
  • Fig. 4d, 4e and 4f show the same arrangement 15 having the absorbent 16 connected thereto at the waterline.
  • the absorbent 16 is filled only with water up to the waterline and is therefore relatively light weight.
  • fig. 4e a later stage is shown in which the oil has penetrated into the absorbent 16 and pushed away most of the water.
  • a device 1 that is filled with oil is shown in fig. 4f .
  • ballast 21 in fig. 5a has the form of separate sinkers, each connected by a pin to a batten 18.
  • the device 1 which in these cases is connected to a boom 15, is of the kind having partitionings 3 and absorbing chambers 2. The device is floating on the water and oil 9 but has not yet absorbed any oil.
  • the device 1 is filled with oil and needs to be replaced.
  • the device 1 connected to an arrangement 15 is shown in use.
  • Fig. 6a shows two boats 26 towing in the first case an arrangement 1 having only one device 1, but two devices 1 connected in the second case.
  • the device 1 is kept on the side of the arrangement 15 that faces the oil.
  • one of the devices 1 is already filled with oil, whereas the other device 1 still can absorb oil.
  • the device 1 and arrangement 15 is stretched across a stream to avoid that the oil passes further away. If only one device 1 is not long enough to bridge the stream, several devices 1 can be interconnected by for example hook-and-loop fasteners, such as Velcro tape at its ends.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Removal Of Floating Material (AREA)

Abstract

La présente invention concerne un dispositif (1) permettant d'absorber une matière, telle que du pétrole, provenant d'une zone. Ce dispositif (1) comporte une gaine (10) recouvrant une âme d'une matière principalement sorbante. Ledit dispositif (1) est partagé en au moins deux chambres d'absorption adjacentes horizontalement lors de l'utilisation, ladite séparation (3) engendrant d'autres côtés (7) qui ont une extension verticale et qui sont exposés à cette matière. Ladite invention a également trait à un équipement (15) permettant de protéger une zone superficielle d'eau, tel qu'un bras, qui comprend une gaine flexible, pendante verticalement, séparée et attachée, en relation avec les barres rigides de la gaine flexible, et située en-dessous du ballast de suspension de protection. Ladite invention concerne aussi un dispositif (1) permettant d'absorber de la matière, telle que du pétrole, provenant de l'eau, ledit dispositif étant relié de manière détachable audit équipement. Cet équipement (15) est conçu pour être relié de façon détachable à proximité de la ligne d'eau dudit équipement (15) à un dispositif (1) d'absorption de matière d'un certain type mentionné dans une des revendications allant de 1 à 7.
PCT/SE2003/000127 2002-01-26 2003-01-24 Equipement de protection contre le petrole Ceased WO2003062536A1 (fr)

Applications Claiming Priority (20)

Application Number Priority Date Filing Date Title
SE0200248-3 2002-01-26
SE0200248A SE0200248D0 (sv) 2002-01-26 2002-01-26 Absorbtionskuddar som kan ha antingen fyrkantig, rektangulär eller rund form. Dessa kuddar kan ha två eller flera separata kamrar vars funktion är att väsentligt öka absorbtionskuddarnas absorbtionskapacitet
SE0200240-0 2002-01-28
SE0200240A SE0200240D0 (sv) 2002-01-28 2002-01-28 System att placera i t ex brunnar för dagvatten n m för att absorbera dels oljeföroreningar och även tungmetaller lösta i vattnet och även andra föroreningar med bark
SE0200432-3 2002-02-15
SE0200432A SE0200432D0 (sv) 2002-02-15 2002-02-15 Mobilt filter för sanering av tungmetaller lösta i vatten och t ex oljeföroreningar mm i gadvattenbrunnar, industribrunnar och liknande områden
SE0201032A SE0201032D0 (sv) 2002-04-04 2002-04-04 Industribrunnar
SE0201032-0 2002-04-04
SE0202827-2 2002-09-24
SE0202827A SE0202827D0 (sv) 2002-09-24 2002-09-24 Metod och konstruktion för att fylla t.ex absorberingslänsornas "strumpor"
SE0203051-8 2002-10-14
SE0203051A SE0203051D0 (sv) 2002-10-14 2002-10-14 Metod och funktion för absorberande skimmingringar
SE0203106-0 2002-10-20
SE0203106A SE0203106D0 (sv) 2002-10-20 2002-10-20 Oljeskyddssystem
SE0203209-2 2002-10-26
SE0203209A SE0203209D0 (sv) 2002-10-26 2002-10-26 Oljeskyddssystem
SE0203341A SE0203341D0 (sv) 2002-01-26 2002-11-13 Oljeskyddssystem
SE0203341-3 2002-11-13
SE0203487-4 2002-11-26
SE0203487A SE0203487D0 (sv) 2002-01-26 2002-11-26 Oljeskyddssystem

Publications (1)

Publication Number Publication Date
WO2003062536A1 true WO2003062536A1 (fr) 2003-07-31

Family

ID=27618019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/000127 Ceased WO2003062536A1 (fr) 2002-01-26 2003-01-24 Equipement de protection contre le petrole

Country Status (1)

Country Link
WO (1) WO2003062536A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012116548A1 (fr) * 2011-03-03 2012-09-07 Wu Xiangyang Poutrelle d'absorption de pétrole
JP2018184706A (ja) * 2017-04-24 2018-11-22 谷口商会株式会社 オイルフェンス、オイルフェンスの施工方法及び浮遊物の流出防止方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181137B (de) * 1961-01-31 1964-11-05 Jacques Muller Vorrichtung zum Absaugen einer auf der Wasseroberflaeche von Haefen oder Fluessen schwimmenden Schmutzschicht
DE4301796A1 (de) * 1992-07-08 1994-07-28 Helmut Schiwek Rettungsmittel für Wasserfahrzeuge
US5522674A (en) * 1995-05-22 1996-06-04 American Boat And Skimmer Company Self-inflatable containment boom and method of making
US5885451A (en) * 1990-10-31 1999-03-23 Porrovecchio, Sr.; Dennis J. Oil spill containment and recovery apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181137B (de) * 1961-01-31 1964-11-05 Jacques Muller Vorrichtung zum Absaugen einer auf der Wasseroberflaeche von Haefen oder Fluessen schwimmenden Schmutzschicht
US5885451A (en) * 1990-10-31 1999-03-23 Porrovecchio, Sr.; Dennis J. Oil spill containment and recovery apparatus
DE4301796A1 (de) * 1992-07-08 1994-07-28 Helmut Schiwek Rettungsmittel für Wasserfahrzeuge
US5522674A (en) * 1995-05-22 1996-06-04 American Boat And Skimmer Company Self-inflatable containment boom and method of making

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012116548A1 (fr) * 2011-03-03 2012-09-07 Wu Xiangyang Poutrelle d'absorption de pétrole
JP2018184706A (ja) * 2017-04-24 2018-11-22 谷口商会株式会社 オイルフェンス、オイルフェンスの施工方法及び浮遊物の流出防止方法

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