WO2004051316A1 - Procede et appareil de nettoyage d'une structure immergee mobile - Google Patents
Procede et appareil de nettoyage d'une structure immergee mobile Download PDFInfo
- Publication number
- WO2004051316A1 WO2004051316A1 PCT/FR2003/003529 FR0303529W WO2004051316A1 WO 2004051316 A1 WO2004051316 A1 WO 2004051316A1 FR 0303529 W FR0303529 W FR 0303529W WO 2004051316 A1 WO2004051316 A1 WO 2004051316A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cleaning
- flute
- along
- seismic
- drag
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000005188 flotation Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 230000005534 acoustic noise Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/56—Towing or pushing equipment
- B63B21/66—Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
Definitions
- the present invention relates to a method and an apparatus for cleaning a mobile submerged (or if necessary floating) structure.
- Seismic streamers or “streamers” are used in particular to explore a submerged subsoil, in particular to determine the presence of oil or gas in the sediment layers of the seabed.
- Such a flute generally comprises a hollow tubular structure, along which hydrophones are provided (sensors sensitive to acoustic waves underwater), as well as wings (“or airplanes”) which make it possible to adjust the depth of immersion of a section of flute of which they are integral; hydrophones make it possible to measure durations of propagation of echoes of sound pulses which are returned by the layers of sediment.
- Streamers can be several kilometers or tens of kilometers in length; they can remain submerged in sea water for several consecutive months; they are generally submerged at a shallow depth (a few meters), and towed at low speed (less than or equal to 5 knots); the tubular structure of the flute is thus subject to fouling; living organisms developing on the external face of this structure, can lead to the formation on this face of amalgams or concretions which disturb the measurements to be carried out.
- An object of the invention is to provide a method and an apparatus for cleaning such a structure, which at least partially remedies these drawbacks.
- the invention consists in cleaning a seismic flute during its towing by a ship, using a cleaning device comprising a tool for cleaning the external surface of the flute, as well as a structure having a hydrodynamic drag, by free movement of the cleaning device along the flute.
- the cleaning apparatus is caused to move along the flute at a speed at least equal to 0.5 meters per second, in particular a speed situated in a range from 1 to 2.5 m / s ; for this purpose, the flute is towed at a higher speed, so that the cleaning apparatus moves relative to the water with a sufficient speed; the ratio of the towing speed of the flute to the sliding speed of the cleaning device along the flute is for example of the order of 1.5; the speed of the cleaning device relative to the water being for example of the order of 1 m / s.
- the invention provides a cleaning device for cleaning a seismic flute - or a similar submerged filiform structure - which comprises:
- Positioning and guiding means adapted to the shape of the flute to allow the cleaning device to remain integral with the flute and to move along the flute
- the means for positioning and guiding the device relative to the flute comprise a pair - and preferably several pairs - of wheels, rollers, rollers, or pulleys, for rolling or sliding with low friction, respectively in two substantially diametrically opposite portions of the outer face of the tubular structure of the flute.
- the apparatus further comprises - and this is another aspect of the invention - flotation means to allow the cleaning apparatus to keep, during its movement along the towed flute, a trim substantially constant, and therefore a substantially constant orientation (at plus or minus 5 or 10 degrees for example) relative to the longitudinal axis of the flute; this allows the device to overlap the wings - "planes" or other prominent accessories - which are integral with the tubular structure of the flute, when the cleaning device moves along the flute.
- a seismic flute cleaning device comprises a mobile cleaning tool, in particular a rotary cleaning brush, as well as drive means for moving the tool (in particular rotate the brush), under the effect of the movement of the cleaning device relative to the water surrounding it and / or relative to the flute; in the latter case, these drive means are preferably moved by friction on the external face of the filiform (tubular) structure of the flute.
- the realization of the drag structure can take various forms; the various elements constituting the apparatus, which protrude relative to the external surface of the flute, can in certain cases contribute to obtaining a structure having sufficient drag to on the one hand oppose the frictional forces mechanics of the cleaning device sliding along the flute, and on the other hand giving it a sufficient speed of movement along the latter; however, in order to limit the size of the device as well as the acoustic noises resulting from the movement of the device, the device is preferably fitted with a structure specially designed to increase the hydrodynamic drag of the cleaning device.
- this structure comprises a section of conduit flared forward and open at its two ends; this results in a structure in the form of a gully, funnel or water handle, through which the surrounding sea water circulates, due to the movement of the device relative thereto.
- the drag results from the high drag coefficient of a cone placed in the opposite direction of the flow.
- the cleaning appliance it is possible to equip the cleaning appliance with a pivoting flap or deflector capable of extending substantially transversely with respect to the direction of movement of the cleaning appliance in order to automatically cause additional drag.
- a drag structure comprising two drag structure elements, which are of substantially identical (or symmetrical) shape and dimensions and arranged in a substantially diametrically opposite relation to the axis. sliding the device along the flute, that is to say with respect to the longitudinal axis of the flute; this makes it possible to orient a result of the two trails respectively resulting from each drag structure element, substantially parallel to the axis, of sliding of the cleaning device along the flute; this makes it possible to balance the hydrodynamic forces exerted on the cleaning device and on the flute; this results in a reduction in the mechanical stresses exerted by the cleaning device on the flute, as well as a better efficiency of the “passive propulsion” system of the device along the flute.
- the cleaning device preferably includes means for adjusting the drag coefficient drag structure; for this purpose, at least part of the drag structure can be pivotally mounted or movable between a maximum drag position and a reduced drag position.
- the means for positioning and / or guiding the apparatus on the flute are preferably deployable and / or retractable; for this purpose, the device is preferably provided with return means which push the positioning and / or guide means towards a support position on the external surface of the flute, while allowing the positioning and / or guide means to move away from the surface external to an obstacle clearance position; according to a preferred embodiment, the device comprises a suspension arm supporting the means (such as wheels or rollers) for positioning and / or guiding, as well as a spring for returning the suspension arm to a support position positioning and / or guiding means on the external face of the flute.
- Figure 1 is a schematic view illustrating the implementation of a cleaning device according to the invention for cleaning a submerged seismic streamer during towing.
- Figure 2 is a rear perspective view of a preferred embodiment of a cleaning apparatus according to the invention engaged around a portion of seismic streamer.
- FIG 3 which is a view along III of Figure 2, illustrates the same cleaning device seen from the rear.
- FIG. 4 illustrates the same cleaning device seen from the side, and is a view along IV of FIGS. 2 and 3.
- FIG. 5 is a top view of the apparatus, and a view along V of FIG. 3.
- Figure 6 is a front view, in perspective, of the apparatus of Figures 1 to 5;
- Figure 7 is a rear view of the apparatus;
- Figure 8 is a bottom view of the apparatus of Figures 1 to 7 and is a view along VIII of Figure 7; unlike Figures 1 to 5, the flute is not shown in Figures 6 to 8.
- FIG. 9 illustrates in perspective a brushing module which can be driven by friction against the flute, which equips the apparatus of FIGS. 1 to 8.
- FIG. 10 illustrates in perspective one of the two drag structures of the apparatus of FIGS. 1 to 8.
- forward and aft are used with reference to a fictitious observer placed behind the ship, in particular at the tail of the flute, and observing the stern of the ship towing the flute.
- a flute 1 is towed by a ship 2 of which it is secured by means of the drum 3 of a winch fitted to the ship; the flute is intended to make it possible to analyze the structure of the sea bottom 4 by means (not shown) of processing the signals delivered by the sensors of the flute; to this end, it comprises a plurality of hydrophones 5 integral with a flexible tube 6, one front end 7 of which is fixed to the winch, and the rear end 8 of which is free; the flute is towed according to arrow 9 at a speed close to 5 knots; the flute also comprises floats 10 integral with the tube 6 to maintain the flute at a uniform depth (over its length) and / or constant (over time).
- the appendages 10 of the flute may include, as illustrated in particular in FIGS. 2 to 5, an upper part 10a serving as a float, a lower part 10b substantially diametrically opposite the upper part 10a, as well as two lateral parts (or wings) 10c and 10d extending from the bottom 10b.
- the apparatus 11 for cleaning the flute is illustrated in a position where it overlaps the appendage 10 secured to the tubular body 6 of the flute; the tubular body 6 extends along its longitudinal axis 12, the direction 9 of traction of the flute being substantially parallel to the axis 12; in the overlapping position of the flute by the cleaning device 11, the axis 14 of symmetry of the positioning and guiding means of the device is substantially coincident with the longitudinal axis 12 of the tubular part 6 of the flute ; the device 1 1 has, as illustrated in particular in FIGS. 3 and 7, a general symmetry according to an anteroposterior plane 13 containing the axis 14 of symmetry of the positioning and guide means.
- the cleaning device 11 forming a carriage rolling along the flute comprises: "A chassis 15 comprising two transverse arches 16 and 17 connecting two longitudinal members 18 and 19 extending parallel to the axis 14, as well as an upper central structure 20 intended to facilitate the lifting of the device 1 1;
- two rear rollers 26 for positioning and guiding identical or similar to the front guide rollers 25, which are pivotally mounted along two axes 28 parallel to the plane 13 and to the axes 27, on arms articulated on the longitudinal members 18 and 19;
- the device for driving in rotation the rotary brushes 32 along their axis of rotation 41 parallel to the anteroposterior plane of the apparatus comprises the rollers 30 which are driven by friction against the external surface of the structure tubular 6 of the flute, rotating along their axis 40 parallel to the axis 41; the roller 30 is pivotally mounted along its axis relative to a yoke 42 slidably mounted along an axis 43 relative to a shaft 44, which is fixed to one of the side members 18 and 19 of the device by means of a part 45 for fixing and by means of bolts 49; the yoke 42 serving to compensate for the friction roller 30, is held in abutment against the external surface of the flute 6 by a helical return spring 46 of axis 43; the brush 32 is rotatably mounted along its axis 41 between two blades 48 connected by a spacer 47; the parts 47, 48 serving to support the brush 32, the friction roller 30 and the brush drive belt 32 by the roller 30, are mounted movable relative to one
- the drag generation structure (flared forwards) 33 essentially consists of a metal structure comprising two parallel blades 50 and 51, which are connected by a curved part 52, the parts 50 to 52 obtainable by bending a metal plate; each of the blades 50 and 51 is pierced with holes 53 allowing the fixing by the bolts 34 of the structure 33 to one of the side members 18, 19 of the device.
- the structure 33 further comprises a substantially flat flap 54 extending transversely with respect to the blades 50 and 51 and fixed to the latter by a bolt 55; the orientation of the flap 54 relative to the structure 50 to 52 can be modified by pivoting along the arrow 56 of the flap 54 along the axis 57 of the bolt 55; the structure 33 further comprises a substantially conical part 58 extending the parts 50 to 52, the conical part 58 itself being extended, as illustrated in particular in FIG. 2, by a cylindrical part 59 open at its rear end 60.
- the cross section of the water passage in the front front part 61 of the cleaning device is significantly greater than the intermediate section in the middle part 62 of the device 33, in particular due to the inclination of the flap 54 relative to the axis 14 of the device; the water passage section is further reduced in the outlet duct 59 of the structure 33.
- the flap 54 can be mounted to rotate freely along the axis 57, its inclination being limited by a return spring (not shown), the movements of the flap possibly being damped by a damper (not shown).
- the frame 15 is divided into two parts (left and right) which are assembled by fixing means and locking (reference 80 in Figure 5) after engagement of the guide wheels and cleaning tools against the opposite surfaces of the tubular body 6 of the flute.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Oceanography (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Acoustics & Sound (AREA)
- Ocean & Marine Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0511381A GB2411197B (en) | 2002-11-28 | 2003-11-28 | A process and a cleaning appliance for a mobile immersed structure |
AU2003294109A AU2003294109A1 (en) | 2002-11-28 | 2003-11-28 | Method and apparatus for cleaning a mobile immersed structure |
US10/536,851 US7754018B2 (en) | 2002-11-28 | 2003-11-28 | Method and apparatus for cleaning a mobile immersed structure |
NO20052899A NO334064B1 (no) | 2002-11-28 | 2005-06-14 | Fremgangsmåte og anordning for rengjøring av en mobil, nedsenket struktur |
NO20130449A NO336205B1 (no) | 2002-11-28 | 2013-04-03 | Fremgangsmåte og anordning for rengjøring av en tauet, nedsenket eller flytende seismisk hydrofonkabel. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0214933A FR2847987B1 (fr) | 2002-11-28 | 2002-11-28 | Procede et appareil de traitement d'une structure immergee mobile |
FR02/14933 | 2002-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004051316A1 true WO2004051316A1 (fr) | 2004-06-17 |
Family
ID=32309779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/003529 WO2004051316A1 (fr) | 2002-11-28 | 2003-11-28 | Procede et appareil de nettoyage d'une structure immergee mobile |
Country Status (6)
Country | Link |
---|---|
US (1) | US7754018B2 (fr) |
AU (1) | AU2003294109A1 (fr) |
FR (1) | FR2847987B1 (fr) |
GB (1) | GB2411197B (fr) |
NO (2) | NO334064B1 (fr) |
WO (1) | WO2004051316A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7145833B1 (en) * | 2005-09-15 | 2006-12-05 | Pgs Geophysical As | Cleaning device for marine seismic streamers |
WO2008068622A2 (fr) * | 2006-12-04 | 2008-06-12 | Pgs Geophysical As | Dispositif de nettoyage automoteur pour flûtes marines sismiques |
US20170235017A1 (en) * | 2016-02-11 | 2017-08-17 | Pgs Geophysical As | Streamer cleaning apparatus and associated systems and methods |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060002234A1 (en) * | 2004-06-30 | 2006-01-05 | Lobe Henry J | Anti-biofouling seismic streamer casing and method of manufacture |
NO341887B1 (no) * | 2006-12-04 | 2018-02-12 | Pgs Geophysical As | Selvdrevet rengjøringsanordning for marine seismiske streamere |
US8007595B2 (en) * | 2008-02-28 | 2011-08-30 | Welaptega Marine Limited | Method for in-situ cleaning and inspecting of a tubular |
FR2934378B1 (fr) | 2008-07-28 | 2010-11-12 | Sercel Rech Const Elect | Flute sismique formee de sections comprenant une gaine principale revetue d'une gaine externe formee d'un materiau thermoplastique charge par un materiau biocide |
US20110174207A1 (en) * | 2010-01-21 | 2011-07-21 | Pgs Geophysical As | System and method for using copper coating to prevent marine growth on towed geophysical equipment |
US8695524B2 (en) * | 2010-02-17 | 2014-04-15 | Glenn Tilley | Barnacle fouling tool |
US9539620B2 (en) * | 2010-09-20 | 2017-01-10 | Cgg Data Services Ag | Apparatus for in-situ cleaning of a seismic streamer cable |
US8875722B2 (en) * | 2011-03-02 | 2014-11-04 | Pgs Geophysical As | Self propelled cleaning device for marine streamers |
US9061331B2 (en) * | 2011-04-29 | 2015-06-23 | Cggveritas Services Sa | Anti-attachment device and method |
US10139505B2 (en) | 2011-08-09 | 2018-11-27 | Pgs Geophysical As | Digital sensor streamers and applications thereof |
US10286428B2 (en) * | 2011-10-19 | 2019-05-14 | Pgs Geophysical As | Tools and methods for cleaning survey cables |
US9254509B2 (en) | 2012-04-05 | 2016-02-09 | Cggveritas Services Sa | Active cleaning device for seismic streamers and related methods |
US9321513B2 (en) | 2012-08-03 | 2016-04-26 | Cgg Services Sa | Streamer coating device and method |
US8960117B2 (en) | 2012-09-07 | 2015-02-24 | Pgs Geophysical As | Method and apparatus to facilitate cleaning marine survey equipment |
US20140083449A1 (en) | 2012-09-27 | 2014-03-27 | Michael Bo Erneland | Ultrasonic Cleaning of Marine Geophysical Equipment |
CN102941914B (zh) * | 2012-10-11 | 2015-04-08 | 国家海洋局第二海洋研究所 | 一种海洋水文参数观测拖体 |
US9423527B2 (en) | 2013-03-08 | 2016-08-23 | Cgg Services Sa | Autonomous cleaning device for seismic streamers and method |
US9375763B2 (en) | 2013-03-08 | 2016-06-28 | Cgg Services Sa | Autonomous cleaning device for seismic streamers and method |
US9500760B2 (en) * | 2013-04-25 | 2016-11-22 | Cgg Services Sa | Collar system and method for recovering a tow member in a marine survey system |
GB2515635B (en) * | 2013-05-16 | 2020-04-15 | Pgs Geophysical As | Marine geophysical equipment cleaner |
US9488753B2 (en) | 2013-05-16 | 2016-11-08 | Pgs Geophysical As | Marine geophysical equipment cleaner |
US20150013719A1 (en) * | 2013-07-10 | 2015-01-15 | Cgg Servces Sa | Cleaning device and method |
FR3013315B1 (fr) | 2013-11-20 | 2018-02-09 | Kappa Offshore Solutions Marine Operations Service Kosmos | Dispositif de maintenance permettant un nettoyage d'une flute sismique |
NO20131650A1 (no) * | 2013-12-11 | 2015-04-27 | Magseis As | Apparatur og fremgangsmåte for å håndtere en havbunnskabel |
US9709689B2 (en) * | 2014-02-07 | 2017-07-18 | Pgs Geophysical As | Geophysical cable preparation for antifouling paint |
US10327605B2 (en) * | 2014-12-18 | 2019-06-25 | Durr Megtec, Llc | Air bar cleaning tool, system and method |
US10464644B2 (en) | 2016-04-19 | 2019-11-05 | Pgs Geophysical As | System and method for marine survey payload delivery |
US11061166B2 (en) * | 2017-02-24 | 2021-07-13 | Pgs Geophysical As | Methods and systems of deploying and retrieving streamer cleaning devices |
CN109772785A (zh) * | 2018-12-10 | 2019-05-21 | 中国船舶重工集团公司第七一九研究所 | 一种高效节能的水生物清理系统 |
FR3119794B1 (fr) | 2021-02-12 | 2023-02-24 | Ixblue | Système automobile sous-marin circulant sur une conduite |
Citations (4)
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GB2027473A (en) * | 1978-07-28 | 1980-02-20 | Boc Ltd | Apparatus for attachment to tubular or elongate structural members |
US4267585A (en) * | 1979-10-15 | 1981-05-12 | Ramcor, Inc. | Device for determining the configuration and calibrating long, towed underwater structures |
US4290123A (en) * | 1980-03-03 | 1981-09-15 | The United States Of America As Represented By The Secretary Of The Navy | Towed array condition appraisal system |
US5238331A (en) * | 1991-01-25 | 1993-08-24 | Crc-Evans Rehabilitation Systems, Inc. | Modularized machine for reconditioning pipelines |
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US3844129A (en) * | 1973-04-02 | 1974-10-29 | Global Marine Inc | Arctic pipelaying |
FR2508881B1 (fr) * | 1981-07-03 | 1985-07-12 | Vinel Roger | Guide d'enroulage autonettoyant pour devidoir |
US5197716A (en) * | 1991-04-22 | 1993-03-30 | Shell Offshore Inc. | Seismic cable deployment apparatus |
JP2678265B2 (ja) * | 1992-11-19 | 1997-11-17 | 株式会社木曽製作所 | 高圧電線の端部外周研磨装置 |
US5351359A (en) * | 1993-09-30 | 1994-10-04 | Golden Michael H | Anchor chain cleaning device |
-
2002
- 2002-11-28 FR FR0214933A patent/FR2847987B1/fr not_active Expired - Lifetime
-
2003
- 2003-11-28 US US10/536,851 patent/US7754018B2/en active Active
- 2003-11-28 AU AU2003294109A patent/AU2003294109A1/en not_active Abandoned
- 2003-11-28 WO PCT/FR2003/003529 patent/WO2004051316A1/fr not_active Application Discontinuation
- 2003-11-28 GB GB0511381A patent/GB2411197B/en not_active Expired - Fee Related
-
2005
- 2005-06-14 NO NO20052899A patent/NO334064B1/no not_active IP Right Cessation
-
2013
- 2013-04-03 NO NO20130449A patent/NO336205B1/no not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2027473A (en) * | 1978-07-28 | 1980-02-20 | Boc Ltd | Apparatus for attachment to tubular or elongate structural members |
US4267585A (en) * | 1979-10-15 | 1981-05-12 | Ramcor, Inc. | Device for determining the configuration and calibrating long, towed underwater structures |
US4290123A (en) * | 1980-03-03 | 1981-09-15 | The United States Of America As Represented By The Secretary Of The Navy | Towed array condition appraisal system |
US5238331A (en) * | 1991-01-25 | 1993-08-24 | Crc-Evans Rehabilitation Systems, Inc. | Modularized machine for reconditioning pipelines |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7145833B1 (en) * | 2005-09-15 | 2006-12-05 | Pgs Geophysical As | Cleaning device for marine seismic streamers |
WO2008068622A2 (fr) * | 2006-12-04 | 2008-06-12 | Pgs Geophysical As | Dispositif de nettoyage automoteur pour flûtes marines sismiques |
US7409919B2 (en) | 2006-12-04 | 2008-08-12 | Pgs Geophysical As | Self propelled cleaning device for marine seismic streamers |
WO2008068622A3 (fr) * | 2006-12-04 | 2009-05-14 | Pgs Geophysical As | Dispositif de nettoyage automoteur pour flûtes marines sismiques |
AP2793A (en) * | 2006-12-04 | 2013-11-30 | Pgs Geophysical As | Self propelled cleaning device for marine seismic streamers |
US20170235017A1 (en) * | 2016-02-11 | 2017-08-17 | Pgs Geophysical As | Streamer cleaning apparatus and associated systems and methods |
US10712470B2 (en) * | 2016-02-11 | 2020-07-14 | Pgs Geophysical As | Streamer cleaning apparatus and associated systems and methods |
Also Published As
Publication number | Publication date |
---|---|
FR2847987B1 (fr) | 2005-03-25 |
NO20052899D0 (no) | 2005-06-14 |
NO336205B1 (no) | 2015-06-15 |
US7754018B2 (en) | 2010-07-13 |
NO334064B1 (no) | 2013-12-02 |
GB2411197B (en) | 2006-03-29 |
FR2847987A1 (fr) | 2004-06-04 |
US20060054186A1 (en) | 2006-03-16 |
GB0511381D0 (en) | 2005-07-13 |
GB2411197A (en) | 2005-08-24 |
AU2003294109A1 (en) | 2004-06-23 |
NO20052899L (no) | 2005-06-14 |
NO20130449L (no) | 2005-06-14 |
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