Marine vibrators and marine vibrator systems are provided herein having one or more remotely located components. An exemplary marine vibrator includes at least one electromagnetic transducer, a control -monitoring electronics system, and a frame, where the at least one electromagnetic transducer is at least partially within the frame. The at least one electromagnetic transducer receives alternating current (AC) electrical power from one or more power amplifiers, via at least one umbilical that connects the at least one electromagnetic transducer and the one or more power amplifiers, where the one or more power amplifiers are remotely located from the marine vibrator.
G01V 1/145 - Production d'énergie sismique en utilisant des moyens d'entraînement mécaniques déformant ou déplaçant des surfaces
B63B 21/66 - Équipements spécialement adaptés au remorquage sous l'eau des objets ou des navires, p. ex. carénages hydrodynamiques pour câbles de remorquage
G01V 1/38 - SéismologieProspection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
09 - Appareils et instruments scientifiques et électriques
Produits et services
Ship motion forecasting system comprised of wave sensing radar apparatus, sensors, namely, inertial measurement unit (IMU), wind speed and direction sensor, Global Position System (GPS) receiver, computer data processing apparatus, electronic database in the field of oceanographic and ship motion data recorded on computer media, and displays, namely, computer display monitors
3.
SYSTEMS AND METHODS FOR WAVE SENSING AND SHIP MOTION FORECASTING WITH OPERATIONAL PERIOD INDICATORS
Systems and methods and described herein that can enable accurate forecasting of ship motions and the useful displaying of such forecasts to users. In general, the ship motion forecasting systems and methods provide users with graphical indication of ship motion forecasts in the form of operational period indicators. These operational period indicators are generated such that the ship motion forecasts under at least one motion threshold for a time period exceeding a time threshold are indicated in a first way, while ship motion forecasts not under the at least one motion threshold for the time period exceeding the time threshold are indicated in a second way, different from the first way. This can facilitate the quick determination of operational status by a user and thus allow a user to quickly ascertain when conditions are likely to be such that certain ship operations can be safely performed
B63B 39/00 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire
4.
Systems and methods for wave sensing and ship motion forecasting with operational period indicators
Systems and methods and described herein that can enable accurate forecasting of ship motions and the useful displaying of such forecasts to users. In general, the ship motion forecasting systems and methods provide users with graphical indication of ship motion forecasts in the form of operational period indicators. These operational period indicators are generated such that the ship motion forecasts under at least one motion threshold for a time period exceeding a time threshold are indicated in a first way, while ship motion forecasts not under the at least one motion threshold for the time period exceeding the time threshold are indicated in a second way, different from the first way. This can facilitate the quick determination of operational status by a user and thus allow a user to quickly ascertain when conditions are likely to be such that certain ship operations can be safely performed.
B63J 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
B63B 39/14 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire indiquant l'angle ou la durée du roulis
Methods are provided to package and deploy a marine vibrator for use in connection with marine seismic surveys. Marine vibrators are provided with a number of buoyancy configurations with corresponding techniques for controlling the submergence depth of the marine vibrators. An exemplary marine vibrator comprises a positively buoyant hydrodynamic tow body, comprising: a low frequency electro-acoustic projector; a power electronics system; a control-monitoring electronics system; and a pressure compensation system, wherein the hydrodynamic tow body comprises one or more active control surfaces to adjust a submergence depth and a roll attitude of the hydrodynamic tow body. Additional embodiments employ a free-flooding, load-bearing frame with positive or negative buoyancy.
G01V 1/38 - SéismologieProspection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
G01V 1/145 - Production d'énergie sismique en utilisant des moyens d'entraînement mécaniques déformant ou déplaçant des surfaces
G01V 1/135 - Production d'énergie sismique en utilisant des fluides comme moyens d'entraînement hydrauliques, p. ex. en utilisant des fluides à haute pression déformant ou déplaçant des surfaces d'enceintes
6.
SYSTEMS AND METHODS FOR WAVE SENSING AND SHIP MOTION FORECASTING USING MULTIPLE RADARS
Ship motion forecasting systems and methods are described herein that can enable accurate real-time forecasting of ocean waves and resultant ship motions. Such systems and methods can be used to improve the efficiency and safety of a variety of ship operations, including the moving of cargo between ships at sea. In general, the systems and methods transmit radar signals from multiple radars, and those radar signals from the multiple radars are reflected off the surface of a body of water. The reflected radar signals are received, and radar data is generated from the received radar signals. The radar data is used to generate ocean wave components, which represent the amplitude and phase of a multitude of individual waves that together can describe the surface of the ocean. These ocean wave components are then used generate ship motion forecasts, which can then be presented to one or more users.
G01S 13/60 - Systèmes de détermination de la vitesse ou de la trajectoireSystèmes de détermination du sens d'un mouvement dans lesquels l'émetteur et le récepteur sont montés sur l'objet mobile, p. ex. pour déterminer la vitesse par rapport au sol, l'angle de dérive, le trajet au sol
G01S 13/87 - Combinaisons de plusieurs systèmes radar, p. ex. d'un radar primaire et d'un radar secondaire
G01S 7/24 - Affichage par tubes à rayons cathodiques l'image étant orientée ou déplacée suivant le mouvement de l'objet portant l'appareillage émetteur et récepteur, p. ex. radar à mouvement vrai
B63B 39/14 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire indiquant l'angle ou la durée du roulis
G01S 13/86 - Combinaisons de systèmes radar avec des systèmes autres que radar, p. ex. sonar, chercheur de direction
7.
SYSTEMS AND METHODS FOR WAVE SENSING AND SHIP MOTION FORECASTING WITH SCROLLING FORECAST DISPLAYS
Systems and methods for ship motion forecasting are described herein. These ship motion forecasting systems can enable accurate real-time forecasting of waves and resultant vessel motions, and the useful displaying of such forecasts to users. In general, the ship motion forecasting systems and methods provide users with useful indications of ship motion forecasts by generating scrolling graphical representations of the ship motion forecasts. For example, the systems can be implemented to display on a first window portion a plurality of graphical representations of ship motion forecasts generated over a plurality of forecast cycles, where the graphical representations of new ship motion forecasts are added as generated, and where the graphical representations of previously generated ship motion forecasts are scrolled as new ship motion forecasts are added.
B63B 39/14 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire indiquant l'angle ou la durée du roulis
G01S 13/86 - Combinaisons de systèmes radar avec des systèmes autres que radar, p. ex. sonar, chercheur de direction
G01S 13/60 - Systèmes de détermination de la vitesse ou de la trajectoireSystèmes de détermination du sens d'un mouvement dans lesquels l'émetteur et le récepteur sont montés sur l'objet mobile, p. ex. pour déterminer la vitesse par rapport au sol, l'angle de dérive, le trajet au sol
G01S 7/24 - Affichage par tubes à rayons cathodiques l'image étant orientée ou déplacée suivant le mouvement de l'objet portant l'appareillage émetteur et récepteur, p. ex. radar à mouvement vrai
Systems and methods for ship motion forecasting are described herein. These ship motion forecasting systems can enable accurate real-time forecasting of waves and resultant vessel motions, and the useful displaying of such forecasts to users. In general, the ship motion forecasting systems and methods provide users with useful indications of ship motion forecasts by generating scrolling graphical representations of the ship motion forecasts. For example, the systems can be implemented to display on a first window portion a plurality of graphical representations of ship motion forecasts generated over a plurality of forecast cycles, where the graphical representations of new ship motion forecasts are added as generated, and where the graphical representations of previously generated ship motion forecasts are scrolled as new ship motion forecasts are added.
G01S 7/24 - Affichage par tubes à rayons cathodiques l'image étant orientée ou déplacée suivant le mouvement de l'objet portant l'appareillage émetteur et récepteur, p. ex. radar à mouvement vrai
G01S 13/50 - Systèmes de mesure basés sur le mouvement relatif à la cible
G01S 13/60 - Systèmes de détermination de la vitesse ou de la trajectoireSystèmes de détermination du sens d'un mouvement dans lesquels l'émetteur et le récepteur sont montés sur l'objet mobile, p. ex. pour déterminer la vitesse par rapport au sol, l'angle de dérive, le trajet au sol
G01S 13/86 - Combinaisons de systèmes radar avec des systèmes autres que radar, p. ex. sonar, chercheur de direction
G01S 13/87 - Combinaisons de plusieurs systèmes radar, p. ex. d'un radar primaire et d'un radar secondaire
G01S 13/937 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour prévenir les collisions d’embarcations
G01S 13/91 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la commande du trafic
B63B 39/14 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire indiquant l'angle ou la durée du roulis
9.
Systems and methods for wave sensing and ship motion forecasting using multiple radars
Ship motion forecasting systems and methods are described herein that can enable accurate real-time forecasting of ocean waves and resultant ship motions. Such systems and methods can be used to improve the efficiency and safety of a variety of ship operations, including the moving of cargo between ships at sea. In general, the systems and methods transmit radar signals from multiple radars, and those radar signals from the multiple radars are reflected off the surface of a body of water. The reflected radar signals are received, and radar data is generated from the received radar signals. The radar data is used to generate ocean wave components, which represent the amplitude and phase of a multitude of individual waves that together can describe the surface of the ocean. These ocean wave components are then used generate ship motion forecasts, which can then be presented to one or more users.
G01S 7/24 - Affichage par tubes à rayons cathodiques l'image étant orientée ou déplacée suivant le mouvement de l'objet portant l'appareillage émetteur et récepteur, p. ex. radar à mouvement vrai
G01S 13/937 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour prévenir les collisions d’embarcations
G01S 13/60 - Systèmes de détermination de la vitesse ou de la trajectoireSystèmes de détermination du sens d'un mouvement dans lesquels l'émetteur et le récepteur sont montés sur l'objet mobile, p. ex. pour déterminer la vitesse par rapport au sol, l'angle de dérive, le trajet au sol
G01S 13/86 - Combinaisons de systèmes radar avec des systèmes autres que radar, p. ex. sonar, chercheur de direction
G01S 13/87 - Combinaisons de plusieurs systèmes radar, p. ex. d'un radar primaire et d'un radar secondaire
G01S 13/91 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la commande du trafic
G01S 13/50 - Systèmes de mesure basés sur le mouvement relatif à la cible
B63B 39/14 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire indiquant l'angle ou la durée du roulis
G01S 13/00 - Systèmes utilisant la réflexion ou la reradiation d'ondes radio, p. ex. systèmes radarSystèmes analogues utilisant la réflexion ou la reradiation d'ondes dont la nature ou la longueur d'onde sont sans importance ou non spécifiées
Methods are provided to package and deploy a marine vibrator for use in connection with marine seismic surveys. Marine vibrators are provided with a number of buoyancy configurations with corresponding techniques for controlling the submergence depth of the marine vibrators. An exemplary marine vibrator comprises a positively buoyant hydrodynamic tow body, comprising: a low frequency electro-acoustic projector; a power electronics system; a control-monitoring electronics system; and a pressure compensation system, wherein the hydrodynamic tow body comprises one or more active control surfaces to adjust a submergence depth and a roll attitude of the hydrodynamic tow body. Additional embodiments employ a free-flooding, load-bearing frame with positive or negative buoyancy.
A coherent sound source is provided for marine seismic surveys. An exemplary underwater sound projector comprises a plurality of pistons actuated by an electromagnetic force generator having components comprising a stator, armatures, electrical coils, and permanent magnets. The pistons and the components are arranged to create mechanical and magnetic symmetry about a geometric center of the projector to reduce reaction loads that occur when the pistons are actuated. The stator and the armatures have magnetic poles that employ a tapered geometry. The projector optionally includes control systems to improve the fidelity of the force generator, provide pressure compensation to the pistons, finely adjust the static position of the pistons, and/or change the depth and roll when the projector is configured as a tow body. A plurality of such projectors can be configured in an array. An umbilical can connect the projectors to a vessel, transmit electrical power and compressed gas to each array element and/or provide a data transmission medium between the projector and the vessel.
A coherent sound source is provided for marine seismic surveys. An exemplary underwater sound projector comprises a plurality of pistons actuated by an electromagnetic force generator having components comprising a stator, armatures, electrical coils, and permanent magnets. The pistons and the components are arranged to create mechanical and magnetic symmetry about a geometric center of the projector to reduce reaction loads that occur when the pistons are actuated. The stator and the armatures have magnetic poles that employ a tapered geometry. The projector optionally includes control systems to improve the fidelity of the force generator, provide pressure compensation to the pistons, finely adjust the static position of the pistons, and/or change the depth and roll when the projector is configured as a tow body. A plurality of such projectors can be configured in an array. An umbilical can connect the projectors to a vessel, transmit electrical power and compressed gas to each array element and/or provide a data transmission medium between the projector and the vessel.
A coherent sound source is provided for marine seismic surveys. An underwater sound projector for producing time-harmonic waveforms comprises two pistons positioned on either side of an electro-magnetic force generator substantially having mechanical and magnetic symmetry about its geometric center thereby creating a virtual node to substantially cancel reaction loads that occur when the pistons are actuated. The underwater sound projector optionally also includes control systems to improve the fidelity of the force generator, provide pressure compensation to the pistons, finely adjust the static position of the pistons, and change the depth and roll when it is configured as tow body. A plurality of underwater sound projectors can be configured in an array. A load-bearing umbilical can connect the underwater sound projectors to a ship, transmit electrical power to each array element and serve as a duplex data transmission medium to route commands from the ship to the projector and report machinery status to the ship.
A coherent sound source is provided for marine seismic surveys. An underwater sound projector for producing time-harmonic waveforms comprises two pistons positioned on either side of a single electro-magnetic force generator substantially having mechanical and magnetic symmetry about its geometric center to substantially cancel reaction loads that occur when the pistons are actuated. The underwater sound projector optionally also includes control systems to improve the fidelity of the force generator, provide pressure compensation to the pistons, finely adjust the static position of the pistons, and change the depth and roll when it is configured as tow body. A plurality of underwater sound projectors can be configured in an array. A load-bearing umbilical can connect the underwater sound projectors to a ship, transmit electrical power to each array element and serve as a duplex data transmission medium to route commands from the ship to the projector and report machinery status.
Low cost miniature vector sensors are provided. An acoustic vector sensor is provided that comprises at least one accelerometer to measure at least one component of acoustic particle acceleration, wherein the at least one accelerometer has a resonant frequency within a measurement band of the acoustic vector sensor. In addition, a method is disclosed for measuring an acoustic signal. The method comprises the steps of configuring an array of acoustic vector sensors comprised of at least one accelerometer to measure at least one component of acoustic particle acceleration; operating the at least one accelerometer at a resonant frequency within a measurement band of the acoustic vector sensor; and generating a voltage using one or more of the acoustic vector sensors representative of the acoustic signal as the acoustic signal propagates past the array. The voltage optionally indicates a bearing of the acoustic signal.
G01H 11/08 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores par détection des changements dans les propriétés électriques ou magnétiques par des moyens électriques utilisant des dispositifs piézo-électriques
G01V 1/18 - Éléments récepteurs, p. ex. sismomètre, géophone
