WO2022195233A1 - Système de récupération de sismomètre de fond de mer, navire et procédé correspondant - Google Patents
Système de récupération de sismomètre de fond de mer, navire et procédé correspondant Download PDFInfo
- Publication number
- WO2022195233A1 WO2022195233A1 PCT/FR2022/050498 FR2022050498W WO2022195233A1 WO 2022195233 A1 WO2022195233 A1 WO 2022195233A1 FR 2022050498 W FR2022050498 W FR 2022050498W WO 2022195233 A1 WO2022195233 A1 WO 2022195233A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seismometer
- ship
- hollow structure
- receiving device
- recovery
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 82
- 230000004888 barrier function Effects 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005188 flotation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 240000003826 Eichhornia crassipes Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000013580 sausages Nutrition 0.000 description 1
- 230000035939 shock Effects 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
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/36—Arrangement of ship-based loading or unloading equipment for floating cargo
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
- B63B2027/165—Deployment or recovery of underwater vehicles using lifts or hoists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2211/00—Applications
- B63B2211/02—Oceanography
Definitions
- the present invention relates generally to the recovery of seabed seismometers in a marine environment.
- the present invention is particularly suitable for seismic surveys.
- the acquisition and processing of seismic data can be used to generate a profile, or image, of the geophysical structure of a subsoil. .
- this profile does not provide a precise location of oil and gas reservoirs, it does suggest, to those experienced in this field, the potential presence or absence of such reservoirs.
- the seismic data is obtained by sending artificially generated seismic or acoustic interrogation waves (vibration, impulsive shock, etc.) at depth.
- Seismic sensors are used to measure the propagation as well as the reflections and refractions by the different layers of the subsoil of the seismic waves generated artificially.
- sensors of this type can be placed directly on the ground at the seabed to perform seismic surveys of the seabed.
- These small sensors are usually deployed and recovered via a cable which connects them, such as for example described in application WO 03/096072, or by means of an underwater drone, as for example described in application WO 2006/024956.
- overboard recovery systems may be known - which however are not suitable for the recovery of seismometers.
- the document CN209667322 U describes a boat provided with a water hyacinth recovery net, located at the rear of the boat.
- the document DE202015106310 describes a boat which is provided with a rescue system for rescuing people in the water, the rescue system being in the form of a deployable net.
- the document US2013081564 A1 describes a ship equipped with an underwater drone recovery system.
- the drones actively move towards the entrance of the recovery system to be lifted using a crawler drive mechanism.
- the object of the present invention is to propose a new system and a new method for recovering a seabed seismometer, making it possible to overcome all or part of the problems set out above.
- the subject of the invention is a recovery system for recovering a seabed seismometer, the recovery system being intended to equip a ship, characterized in that the recovery system comprises:
- a receiving device having an at least partially rigid structure capable of receiving said seismometer, said receiving device having at least one open face;
- a guidance device comprising a guide barrier which has one end able to be coupled to the ship, the guide barrier being able to define, with the hull of the ship, a zone for guiding the seabed seismometer towards the reception ;
- a movement system configured to move the reception device between a low position in which the reception device is at least partially submerged, and a high position allowing an operator or a device present on the ship to recover the bottom seismometer from sea carried by the receiving device.
- the recovery system thus takes the form of a reliable mechanical system with which a ship can be easily equipped, which makes it possible to recover the seismometers with optimized efficiency.
- the recovery system allows rapid and safe recovery of seabed seismometers without slowing down the vessel. [0019] Such a design of the recovery system makes it possible to recover the seismometers in a secure manner, in particular under optimum safety conditions of the 'offshore' standard.
- the recovery system makes it possible to recover the seismometer from the seabed to the surface in an easy and reliable manner, and to raise it to the height of the deck of the ship, without stopping or slowing down the ship, which can move at a speed of the order of 5 to 6 knots.
- the system allows the recovery of many seismometers (seismic recorders) from the seabed which, after their deployment, have been brought to the surface, preferably by a command to release a ballast which was associated with them.
- Seismometers are passive in the sense that they float on the surface while letting themselves be carried by the sea, that is to say without actively heading towards the ship, unlike the drones of solutions known from the state of the art. .
- the recovery system can be installed on different ships.
- the recovery system is transportable, and operable day and night, including in degraded weather conditions.
- the invention also relates to a ship equipped with a lateral side of a recovery system as proposed above.
- the lateral arrangement on the ship of the recovery system makes it possible to guide and recover the seismometers to starboard or port side, in an efficient manner and with a reduced risk of degradation compared with solutions of the state of the art which provide for a rear arrangement of the recovery system which is then in a backwater zone.
- the invention also relates to a method for recovering a seabed seismometer which is floating in the sea, using a recovery system as proposed above, said recovery system equipping a ship, characterized in that the method comprises the following steps:
- a recovery system which comprises:
- - floating guide means extending between a first end provided with a floating body and a second end provided with means for coupling to the hull of a ship
- a mobile cage-type receiving device between a first position in which it is coupled to the second end of the guide means and a second position in which it is accessible on the deck of a ship.
- a recovery system for recovering a seabed seismometer, the recovery system being intended to equip a ship, characterized in that the recovery system comprises:
- reception device comprising several recovery cages each having at least one open face, capable of receiving said seismometer and which operate successively in the manner of a conveyor;
- a guidance device comprising a guide barrier which has one end able to be coupled to the ship, the guide barrier being able to define, with the hull of the ship, a zone for guiding the seabed seismometer towards the reception ;
- a moving mechanism comprising a conveying system configured to move the plurality of cages between a low position in which the plurality of cages is at least partially submerged, and a high position allowing an operator or a device present on the vessel to recover the seabed seismometer carried by each of said cages.
- FIG. 1 is a schematic top view of a ship equipped with a seismometer recovery system according to one embodiment of the invention
- FIG. 2 is a schematic view in slight perspective and from the side of a ship equipped with a recovery system according to one embodiment of the invention, showing a seismometer which is present in the guide corridor defined between the guiding device and the ship's hull;
- FIG. 3 is a schematic view showing the vessel and the recovery system of Figure 2, showing the seismometer which is guided into the cage;
- Figure 4 is a schematic view showing the ship and the recovery system of Figure 3, in the raised position of the recovery cage which contains the seismometer;
- FIG. 5 is a block diagram showing several steps of a recovery method according to an embodiment according to the invention.
- FIG. 6 is a partial view of a ship equipped with a seismometer recovery system according to one embodiment of the invention, in the lowered position of a mobile hollow structure and in the partially submerged position of the device reception which extends in the movable hollow structure;
- Figure 7 is a view of part of the seismometer recovery system of Figure 6;
- FIG. 8 is a view of the seismometer recovery system of Figure 7, in the raised position of the mobile hollow structure and in the raised position of the recovery device in a stowed position below which the device extends thrust to hold the receiving device in the stowed position.
- a recovery system 1 is proposed for recovering a seismometer 2 from the seabed.
- the seismometer 2 from the seabed can be a "free-fall" type recorder, for example of the type of device offered under the reference MicrOBS by the company Sercel.
- Recovery system 1 equips ship 3.
- the recovery system 1 comprises a receiving device 11, preferably perforated, capable of receiving said seismometer 2.
- the receiving device 11 is adapted to limit the risk that the seismometer 2 involuntarily leaves said receiving device 11.
- the system 1 also includes a guiding device 12 which makes it possible to guide the seismometer 2 towards the receiving device 11 when the ship is advancing. and that the seabed seismometer 2 is in contact with the guide device 12. The movement of the seismometer 2 is then channeled by the guide device 12 and possibly the hull of the ship, so that the seismometer ends up arriving in the receiving device 11.
- the seismometer 2 is guided along the guide device by the relative movement of the ship 3 equipped with the system with respect to the seismometer 2.
- the guide device 12 forms a barrier vis-à-vis the seismometer 2 of seabed to constrain its movement towards the receiving device 11.
- the guiding device 12 has a part capable of being attached to the ship 3. It should be noted that, for the recovery of the seismometers 2, the ship continues to advance at a speed which can be high, for example 5 or 6 knots, and does not need to be stationary to recover the seismometers 2. In fact, the guidance device makes it possible to direct the seismometer towards the reception device.
- the receiving device 11 can be moved using a system 13 for moving between a low position in which the receiving device 11 remains on the surface while being partially submerged, for example over half of its height. , to make it possible to collect a seismometer 2 which floats in the water, and a high position according to which the reception device 11 is out of the water and is located at a height which allows an operator or a device present on the ship 3, in particular its deck, to retrieve the seismometer 2 from the seabed carried by the reception device 11.
- the high position of the reception device is thus greater than the height of the ship's deck, preferably greater than the height of the corresponding side rail of the ship
- the reception device 11 In the low position, the reception device 11 is able to receive at least one seismometer 2.
- the reception device 11 is preferably arranged so as to follow the movements of the sea, while floating, while keeping a semi position. -submerged when in the down position.
- Ship The recovery system 1 equips one side of the ship. Provision can be made for the opposite lateral side of the vessel to also be provided with a recovery system 1 .
- the system according to the invention is designed to be adaptable to existing ships of opportunity.
- the receiving device 11 is a cage.
- the cage has a structure that is at least partially rigid, unlike the nets which are flexible structures used in the documents of the state of the art.
- the cage is generally parallelepipedic in shape.
- at least part of the faces, for example the rear face and a side face, comprises bars. It is possible to provide that one or more sides of the cage are closed by a mesh.
- the use of a cage makes it possible to reliably receive the seismometer without risk of degradation of the reception device.
- the cage is preferably able to float.
- the bars of the cage are hollow, that is to say formed by tubes, so that the cage is able to float, while being partially submerged.
- the floating capacity of the cage with partial immersion makes it easy to recover the floating seismometers.
- the receiving device 11 is a cage.
- the cage may have several open faces, for example at least one front face (that is to say facing the front of the ship) open to let in the seismometer 2 in the cage in the low position of the cage, and a side face (that is to say facing one side of the ship's hull) open to facilitate the exit of the seismometer 2 in the reassembled state of the cage.
- a front face that is to say facing the front of the ship
- a side face that is to say facing one side of the ship's hull
- the top face may be open in order to take out the seismometer 2 easily in the high position of the cage.
- the cage may have a single open face serving as the entry and exit of the seismometer 2.
- the cage has a bottom wall (forming a floor), preferably rigid, on which the seismometer is able to rest and which is adapted to allow the seismometer to be easily pushed by the pusher 13.
- the bottom wall does not hinder the sliding of the seismometer.
- the bottom wall can thus be in the form of a plate, preferably perforated to facilitate the partial immersion of the cage, on which the seismometer is able to slide by pushing the pusher.
- the cage 11 is larger in size than the size of the seismometer 2 to recover.
- the cage 11 is preferably two to three times the size of the seismometer 2.
- the width and the height of the cage 11 can thus be equal to respectively twice the width and three times the height of the seismometer 2.
- the guide device 12 comprises an elongated element, called guide barrier 121, which is associated with flotation means 120 so as to remain on the surface.
- the flotation means 120 can extend along the elongated element, like a sausage, or be in discrete form, like buoys distributed along the elongated element, or even be only occasionally, with for example a single float at a chosen level of the guide barrier 121.
- the guide barrier 121 is able to extend outside and on one side of the ship.
- the guide barrier 121 has, along its length, a part which extends below the waterline level, over a height preferably at least equal to 1 meter, for example 2 meters. This makes it possible to limit the risk of passage of the seismometer 2 below the guide barrier 121, in particular in the event of rough seas.
- the depth of the guide barrier is thus suitable for guiding seabed seismometers, in particular MicrOBS.
- the guide barrier also has, along its length, a part which extends above the waterline to prevent the seismometer 2 from passing over the guide barrier 121.
- a first end of the guide barrier 121 is provided with coupling means, making it possible to couple the barrier guide 121, directly or indirectly, to the ship 3.
- a second end of the guide barrier 121, opposite the first end, is coupled to a holding arm 14, possibly via a float 122.
- the holding arm 14 is coupled to the vessel to hold the second end of the guide barrier 121 away from the hull of the vessel 3.
- the coupling of the holding arm to the ship can be achieved using a container 140 secured to the deck of the boat.
- the container can be connected to the arm 14 by a support structure, for example adjustable in height, with respect to which the arm 14 can be articulated in order to be able to be pivoted between a stowed position substantially parallel to the longitudinal axis of the ship and an extended position. transverse to the longitudinal axis of the ship.
- the holding arm 14 is coupled, directly or indirectly, to the float 122 and/or to the guide barrier 121, preferably at said second end of the guide barrier 121.
- the guide barrier 121 has a concave shape, preferably curved, from a point of view from the bow of the ship.
- the float 122 is profiled parallel to the ship, over a length which may be 2 to 3 meters in this direction.
- the guide barrier 121 can be made in different ways.
- the guide barrier 121 can comprise:
- an inflatable tube associated with a net or a tarpaulin, preferably perforated, weighted;
- the angle formed between the longitudinal axis A3 of the vessel 3 and the rope which connects the end of the guide barrier 121 located on the side of the vessel and the end of the guide barrier 121 opposite away from the ship 3, is an acute angle preferably of the order of 30 to 75 ° (or 30 to 60 °), for example between 45 ° and 60 °.
- the displacement system 13 notably allows the cage 11 to move up and down relative to the waterline of the ship, in order to have access to the seismometer 2.
- the displacement system 13 may comprise a frame 130 (or base structure) connected to the ship and a control system, for example by pulley and cable, connected to the cage 11 to control the ascent and descent of cage 11.
- the frame 130 comprises a first hollow structure 1301, or first hollow column, which extends on a lateral side of the vessel, away from the waterline of the vessel.
- the first hollow structure 1301 extends substantially vertically.
- the first hollow structure 1301 is mounted fixed relative to the ship. It is nevertheless possible to provide means for adjusting the position of this first hollow structure 1301 relative to the ship.
- the displacement system 13 comprises a second hollow structure 131, or second hollow column, which extends at least partially inside the first fixed hollow structure 1301 .
- the second hollow structure 131 also extends substantially vertically.
- the first fixed hollow structure 1301 and the second hollow structure 131 each have an open lower end face.
- the second hollow structure 131 is movably mounted to slide up and down relative to the first structure 1301 to allow a part of said second hollow structure 131 to be lowered into the water or down to the water, in thus extending partly outside the first vertical hollow structure 1301, to contain the cage 11 when the latter is in the low position, and thus limit the possible swinging of the receiving device in its low position due to partial immersion of the cage and the progress of the ship.
- the second hollow structure 131 can also be raised out of the water, to free the passage for possible objects other than seismometers and/or limit the ship's drag outside the seismometer recovery phases.
- the first and second hollow structures 1301, 131 comprise uprights and crosspieces.
- the first and second hollow structures are elongated.
- the receiving device 11 is housed inside the second hollow structure 131.
- An ascent/descent control mechanism (not shown), such as a winch system or hoist system, is coupled to the cage 11.
- the second mobile hollow structure 131 makes it possible, in the low position, to keep stable (contain) the reception device 11 when the latter is partially submerged.
- the second movable hollow structure 131 can also be useful for guiding the movement of the cage 11 up and down.
- the displacement system 13 also includes a pushing device 133, also called a pusher, allowing, when the cage 11 is raised, to push the seismometer 2 contained in the cage 11 towards the ship, preferably on a conveying device 132 which extends between the first structure 1301 and the deck of the ship.
- a pushing device 133 also called a pusher
- the side face of the cage 11 which is oriented towards the ship, is open to allow the exit of the seismometer 2 by thrust of the thrust device on the seismometer 2 through the bars of the cage.
- the cage thus has an open front face to accommodate the floating seismometer in the low position, and an open adjacent side face to allow said seismometer to exit once the cage has been reassembled.
- the opposite side face has openings, preferably formed by the spacing between the bars, to allow the pusher to partially penetrate the cage to push the seismometer towards the boat.
- the conveying device 132 can be of the motorized or gravity type. Provision can be made for the conveying device 132 to be retractable.
- the conveying device 132 comprises two conveyors 1321, 1322.
- the first conveyor 1321 preferably substantially horizontal, extends transversely relative to the longitudinal axis of the ship, partly above the deck of the ship and partly overhanging the ship near or against the first hollow structure 1301 of the frame 130 of the displacement system 13.
- One end of the first conveyor 1321 is arranged to receive the seismometer 2 following the action of the thrust device 133.
- the second conveyor 1322 is inclined and located at the end of the first conveyor 1321 to bring the seismometer 2 to the deck of the ship.
- the pushing device 133 is configured to be able to pass through the openings of the first and second hollow structures 1301, 131 in order to be able to push the seismometer contained in the receiving device on the conveyor device 132, in particular on the first conveyor 1321.
- the thrust system 133 can be activated, for example by pivoting a thrust member, to push the seismometer 2 contained in the cage 11 towards the conveying device.
- the pusher 133 can be made in the form of an articulated fork and arranged to pass between the uprights of the first, and if necessary of the second structure 1301, 131, in the raised state thereof, and between the bars of the cage 11, in order to push the seismometer 2 contained in the cage 11, on the conveying device 132.
- the thrust device 133 can be pivotally actuated by a cylinder or a geared motor.
- the conveying device 132 has one end which communicates with an opening of the first structure 1301 and, where appropriate, of the second structure 131, to enable the seismometer 2 contained in the cage 11 to be recovered, in the raised position from this one.
- the cage can be guided in rails, for example via runners, to guide the ascent/descent of the cage relative to the first structure 1301 and/or the second structure 131.
- the chassis According to one embodiment and as illustrated in Figures 6 to 8, the chassis
- a structure preferably substantially horizontal, which forms a support structure 1302 of the first hollow structure 1301 and which is connected to the deck of the ship. Provision can be made for the support structure 1302 of the first structure 1301 to be mounted on a modular structure 1303, such as a container, preferably via a foot system, preferably adjustable in height to be able to adapt to different ship configurations. Provision can also be made for the support structure 1302 to have a telescopic part to adjust the position of the first hollow structure 1301 with respect to the outer lateral side of the ship.
- the first fixed hollow structure 1301 and the second mobile hollow structure are identical.
- 131 can be considered as an elevator shaft in two parts, one 1301 fixed and the other 131 mobile, while the shaft 11 which extends in the second mobile hollow structure 131 can be considered as the elevator allowing the reception of a seismometer in the low position and the raising of the seismometer.
- the end of the guide bar 121 opposite to that connected to the arm 14, is fixed to the second mobile hollow structure 131, in particular at the lower end of this second mobile hollow structure 131.
- the mechanism for lowering and raising the cage 11 may comprise a crane mechanism or a moving mechanism comprising a conveyor rail.
- a crane mechanism or a moving mechanism comprising a conveyor rail.
- the cage 11 is mounted on a mechanized vertical rail forming the movement mechanism.
- the recovery system 1 comprises a holding arm 14 coupled to the guide device 12.
- the holding arm is oriented in a transverse direction, preferably orthogonal or almost, to the axis A3 of the ship, to hold one end of the guide barrier 121 away from the hull of the ship 3, in order to define between the hull of the ship 3 and the guide barrier 121 a guide zone, like a funnel, so that the seabed seismometer 2 is directed by the guide barrier and the movement of the ship, towards the cage 11
- the holding arm 14 can be coupled to the guide barrier 121 and/or to the float 122. Provision can be made for the holding arm 14 to be movable between a stowed, folded position, and an extended position.
- the system 1 comprises a cable 15 to reinforce said retaining arm 14 like a guy wire, and possibly to move said arm between its deployed and folded positions when the arm is articulated.
- the holding arm 14 has for example a length of the order of 10 to 15 meters.
- the length of the holding arm 14 can be adjustable, for example to adapt to the hull height of the ship 3.
- the recovery system also comprises a support structure 140 of the arm 14.
- the support structure 140 comprises a container fixed to the deck of the ship and on which is mounted a set of feet , preferably of adjustable height, to which the arm 14 is articulated.
- the system 1 is removable from the ship 3.
- the system can be removed from the ship using a crane which is on board the ship, called ship of opportunity.
- the holding arm 14 is actuated, by articulation and/or telescopically, to deploy the guidance system 12 which makes it possible to catch the seismometers on the surface on one side of the vessel and guide them to a recovery cage.
- the mobility by articulation and/or by telescopic mounting of the holding arm makes it possible to enlarge or reduce the desired recovery zone depending on the type of object lying on the ship's path, in order to be able to catch the seismometers and avoid other floating objects.
- the second mobile hollow structure 131 inside which the cage extends at least in the low position thereof, can be slidable relative to the first hollow structure 1301 or be retractable, in order to be able to raise said second movable hollow structure 131 out of the water in the event of the presence of a floating object not to be recovered, in order to be able to let this floating object pass.
- the movement of the cage 11 can take place independently of the second mobile hollow structure 131.
- the cage 11 and the second mobile hollow structure 131 can be driven to move by separate drive systems, such as two winches.
- the mobility of the recovery system thus allows the vessel to continue to advance while allowing the configuration of the vessel to be modified if necessary. recovery system by playing on its mobility to recover only the seismometers and let the other floating objects pass.
- the cage 11 is positioned in the water in a semi-submerged manner.
- the cagel 1 can be lowered into this semi-submerged position at the end of a previous recovery of a seismometer when a seismometer to be identified to be recovered and identified.
- the second structure 131 is also lowered into the partially submerged lower position so that the cage 11 extends in said second structure while being partially submerged.
- the part of the second structure 131 which extends outside the first hollow structure 1301 and in which the reception device extends, has an open front face located opposite the front face of the cage 11 to allow the entry of a floating seismometer into cage 11.
- step 520 the ship 3 is directed so as to bring the seismometer to be recovered into the corridor or guide channel defined between the hull of the ship 3 and the guide device 12 of the recovery system 1.
- step 530 ship 3 continues to move forward so that seismometer 2 is guided by guide device 12 into cage 11.
- the seismometer 2 Once the seismometer 2 has entered the cage 11, it can be reassembled mechanically, for example by command from an operator at the deck of the ship.
- the second hollow structure 131 can be left in the low position with a view to the next recovery of another seismometer or be raised in the event of non-use of the system or in the event of an unidentified floating object or obstacle in order to protect the system. .
- the cage 11 is raised to allow an operator or a device present on the ship 3 to recover the seismometer 2.
- the seismometer can then be recovered in the cage.
- the recovery can be carried out mechanically by pushing the seismometer out of the cage 11 via its open side face, towards the conveying device 132.
- the cage 11 empty, it can be sent back down to the water level in order to collect the next seismometer.
- the recovery system 1 is particularly suited to the recovery of seabed seismometers of the MicrOBS type, the use of which for seismic surveys separates them by a distance of a few hundred meters at the bottom of the sea. sea, so that the recovery of two successive seismometers is of the order of a few minutes.
- the ascent of the cage 11 can be actuated every two or three seismometers 2 recovered, if the size of the cage 11 is adapted with respect to the seismometers 2.
- the receiving device 11 comprises a plurality of recovery modules, such as cages.
- the displacement system 13 can then be configured to make it possible to successively raise said recovery modules to recover the seismometers 2 collected in said recovery modules. It is thus possible to set up several recovery cages which operate successively, for example in the manner of a conveyor.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Oceanography (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112023017568A BR112023017568A2 (pt) | 2021-03-19 | 2022-03-18 | Sistema para recuperação de um sismômetro de fundo de oceano, navio e método correspondente |
US18/281,775 US20240158053A1 (en) | 2021-03-19 | 2022-03-18 | System for recovering an ocean-bottom seismometer, ship and corresponding method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2102761 | 2021-03-19 | ||
FR2102761A FR3120844A1 (fr) | 2021-03-19 | 2021-03-19 | Système de récupération de sismomètre de fond de mer, navire et procédé correspondant |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022195233A1 true WO2022195233A1 (fr) | 2022-09-22 |
Family
ID=76920844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2022/050498 WO2022195233A1 (fr) | 2021-03-19 | 2022-03-18 | Système de récupération de sismomètre de fond de mer, navire et procédé correspondant |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240158053A1 (fr) |
BR (1) | BR112023017568A2 (fr) |
FR (1) | FR3120844A1 (fr) |
WO (1) | WO2022195233A1 (fr) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1217390A1 (fr) | 2000-12-15 | 2002-06-26 | Institut Francais Du Petrole | Méthode et dispositif d'exploration sismique d'une zone souterraine immergée, utilisant des récepteurs sismiques couplés avec le fond de l'eau |
WO2003096072A1 (fr) | 2002-05-10 | 2003-11-20 | Thales Underwater Systems Pty Limited | Procede de deploiement de materiel d'intervention sous-marine |
US20060005451A1 (en) * | 2004-07-12 | 2006-01-12 | Norman David R | Mechanical netting device |
WO2006024956A1 (fr) | 2004-08-30 | 2006-03-09 | Compagnie Generale De Geophysique | Procede de mise en place de noeuds et exploration marine sismique, cages et noeuds correspondants |
US20130081564A1 (en) | 2011-09-30 | 2013-04-04 | Cggveritas Services Sa | Deployment and recovery vessel for autonomous underwater vehicle for seismic survey |
DE202015106310U1 (de) | 2015-07-16 | 2016-01-11 | GRM Safety Systems UG (haftungsbeschränkt) | Überbord-System für Boote |
CN209667322U (zh) | 2019-03-11 | 2019-11-22 | 福建省围垦建设工程有限公司 | 一种水葫芦打捞船 |
-
2021
- 2021-03-19 FR FR2102761A patent/FR3120844A1/fr active Pending
-
2022
- 2022-03-18 US US18/281,775 patent/US20240158053A1/en active Pending
- 2022-03-18 WO PCT/FR2022/050498 patent/WO2022195233A1/fr unknown
- 2022-03-18 BR BR112023017568A patent/BR112023017568A2/pt unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1217390A1 (fr) | 2000-12-15 | 2002-06-26 | Institut Francais Du Petrole | Méthode et dispositif d'exploration sismique d'une zone souterraine immergée, utilisant des récepteurs sismiques couplés avec le fond de l'eau |
WO2003096072A1 (fr) | 2002-05-10 | 2003-11-20 | Thales Underwater Systems Pty Limited | Procede de deploiement de materiel d'intervention sous-marine |
US20060005451A1 (en) * | 2004-07-12 | 2006-01-12 | Norman David R | Mechanical netting device |
WO2006024956A1 (fr) | 2004-08-30 | 2006-03-09 | Compagnie Generale De Geophysique | Procede de mise en place de noeuds et exploration marine sismique, cages et noeuds correspondants |
US20130081564A1 (en) | 2011-09-30 | 2013-04-04 | Cggveritas Services Sa | Deployment and recovery vessel for autonomous underwater vehicle for seismic survey |
DE202015106310U1 (de) | 2015-07-16 | 2016-01-11 | GRM Safety Systems UG (haftungsbeschränkt) | Überbord-System für Boote |
CN209667322U (zh) | 2019-03-11 | 2019-11-22 | 福建省围垦建设工程有限公司 | 一种水葫芦打捞船 |
Also Published As
Publication number | Publication date |
---|---|
US20240158053A1 (en) | 2024-05-16 |
BR112023017568A2 (pt) | 2023-10-10 |
FR3120844A1 (fr) | 2022-09-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2977680B1 (fr) | Procedes et systemes de remorquage pour des recherches geophysiques | |
FR2923916A1 (fr) | Source sismique marine en etoile | |
CA2380816A1 (fr) | Dispositif de mise a l'eau et de recuperation d'un vehicule sous-marin et procede de mise en oeuvre | |
EP3177944B1 (fr) | Système à la mer pour le déploiement et la récupération de noeuds sismiques autonomes | |
FR2940838A1 (fr) | Procede et dispositif ameliores de prospection sismique marine | |
EP2255065B1 (fr) | Méthode d'installation de colonne sous-marine montante | |
FR2795527A1 (fr) | Systeme de prospection sismique sous-marine, notamment pour grands fonds | |
CA2875597C (fr) | Systeme de mise a l'eau et de recuperation d'engins sous-marins, notamment d'engins sous-marins tractes | |
EP2043913A1 (fr) | Appareil de recuperation d'un engin sous-marin ou marin | |
FR3000015A1 (fr) | Vehicule sous-marin autonome pour des etudes sismiques marines | |
CA2898255A1 (fr) | Navire recuperateur de dechets oceaniques | |
US10634806B2 (en) | Wavegate for a seismic surface vessel | |
EP3523192B1 (fr) | Système de mesure pour milieu aquatique comportant un navire de surface et un engin subaquatique | |
FR2964201A1 (fr) | Dispositif d'emission d'ondes sismiques pour l'acquisition sismique marine et procede pour sa mise en oeuvre | |
FR2862275A1 (fr) | Dispositif escamotable de stockage et de mise a l'eau d'une annexe transformable en passerelle d'acces a un quai | |
WO2020136114A1 (fr) | Dispositif d'accueil pour un vehicule sous-marin | |
CA1123678A (fr) | Dispositif-support tracte evoluant en immersion | |
WO2022195233A1 (fr) | Système de récupération de sismomètre de fond de mer, navire et procédé correspondant | |
FR3027585A1 (fr) | Systeme de mise a l'eau et de recuperation d'engin marin et sous-marin assiste par des protections inclinables | |
FR2765183A1 (fr) | Navires de relevements sismiques | |
FR3046129A1 (fr) | ||
FR2916281A1 (fr) | Module d'acquisition de donnees sismiques, systeme de prospection sismique comprenant un tel module et procede d'installation d'un tel systeme. | |
US10583897B2 (en) | High angle deployment system for a seismic marine surface vessel | |
FR2545439A1 (fr) | Dispositif d'amarrage | |
EP2420440A1 (fr) | Dispositif pour la récupération d'un engin marin ou sous-marin |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22714496 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112023017568 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112023017568 Country of ref document: BR Kind code of ref document: A2 Effective date: 20230830 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |