Anchored profiling underwater observatory

FIELD: physics.

SUBSTANCE: underwater observatory, coupled to a control room (9), includes a surface buoy (8), a subsurface buoy (3) and a lower buoyancy (4) connected via a rope (2). The running cable (2) is fixed to the ballast (5) by means of a hydroacoustic disconnector (6). Between the subsurface buoy (3) and the ballast (5), the profiling medium (1) moves along the running line (2). The profiling medium (1) contains a central microcontroller module, an electric drive and a set of measuring sensors. The surface buoy-sign (8) contains a radio antenna (16), a radio modem (17), accumulators (18), an accelerometer (19), a magnetic compass (20), electricity consumption counters (21), a GPS receiver (22), GSM-Modem (23), solar panels (24). The lower buoyancy (4) comprises an electric drive (10) articulated with a telescopic device (11) at the extremity of which a seismometer (12) is installed, as well as a modem (13) of a hydroacoustic communication channel with a dispatch station (9) and a device (15) with a flash drive integrated data logger seismometer (12). The lower buoyancy (4) is ball-shaped and comprises an elevator chamber (14) for moving the profiling carrier (1). Inside the running cable (2) there is a hydrosensor cable (7).

EFFECT: expanding the functionality.

2 dwg

 



 

Same patents:

FIELD: physics.

SUBSTANCE: in seismic survey in icy water, streamers are towed behind a vessel under the water surface to avoid collision with ice. GPS readings may not be consistently obtained because the ice prevents a tail buoy with a GPS receiver from trailing from the streamer on the surface Instead, a device is towed on the streamer under the water surface. The absolute position of the streamer is tracked by intermittently bringing the towed device towards the surface so that GPS readings can be obtained. The absolute position of the streamer can then be used in conjunction with compass readings and can correlate various seismic sensor signals obtained along the streamer during the survey. The compass readings can be corrected for declination using declinometer readings, which can be compensated for iron effects from the vessel or other device carrying the declinometer.

EFFECT: high accuracy of survey data.

31 cl, 33 dwg

FIELD: physics; geophysics.

SUBSTANCE: invention relates to geophysics and can be used in seismic exploration to detect oil and gas deposits. The invention discloses a method and an apparatus for marine seismic survey using one or more movable marine seismic vibrators. The sweeping function for the vibrator is based on the criterion of allowable degradation and is a nonlinear function which performs frequency sweeping from top downwards. The obtained data can be used directly without cleaning or can be easily cleaned.

EFFECT: high accuracy of survey data.

21 cl, 11 dwg

FIELD: physics, geophysics.

SUBSTANCE: invention relates to geophysics and can be used for sea seismic works. Claimed are seismic streamer and related method of evaluation of the shape of seismic streamer controlled in transverse direction. This seismic streamer is divided into several adjacent sections of seismic streamer by control devices in transverse direction. Heading transducers arranged fore and aft of every section generate the data on heading. Every section is simulated as a rectangular fore and curved fore section. Section shape is evaluated in compliance with this model from the data on heading towards the section.

EFFECT: higher precision of trial data owing to precision of seismic streamer shape evaluation.

19 cl, 2 dwg

FIELD: physics.

SUBSTANCE: disclosed is a small-size bottom seismic module, connected by a hydroacoustic link to a control station and consisting of a sealed housing, a hydrophysical module, a device for detecting geophysical signals, which includes a bottom seismometer, information storage means, a spatial orientation sensor, a radio buoy, a ballast, a ballast release, a release timer, a flash beacon, a radio beacon, an external communication socket and a power supply. The sealed housing has the shape of a hemisphere which is linked to the base of the sealed housing which is in the form of a plate, on the upper diameter of which there are mechanical elements of the ballast release, which are in the form of straps which are linked to the ballast, tightly adjoining the base of the sealed housing on its lower diameter. The means of communicating with the control station are in the form of a single-relay hydroacoustic link. The spatial orientation sensor consists of an electronic 3D compass, three accelerometers and three angular velocity measuring devices, rigidly linked to the bottom seismometer, and the bottom seismometer is in the form of a wideband molecular-electronic sensor.

EFFECT: high reliability of detected seismic signals.

3 dwg

FIELD: physics.

SUBSTANCE: acoustic signal is emitted toward sea bottom. Signal of sound reradiation from water column is received. Gas flares are isolated from receive signal. Gas flare inclination is used to evaluate the stream velocity profile and direction. Density of gas flare sources on sea bottom and methane flow direction in water for every flare are calculated. Obtained data allows the determination of methane concentration in water column in the area of methane discharge.

EFFECT: higher efficiency and accuracy of evaluation.

1 dwg

FIELD: instrumentation.

SUBSTANCE: offered invention relates to measuring equipment and can be used for development and manufacture of oceanological multichannel information and measuring complexes and development of new measuring oceanological channels. The hydrological-optical-chemical complex contains a unit of hydrophysical measuring channels, a central controller, the first and second modems of the electric communication line, a conducting rope with electric and fibre-optical communication lines, a rotating electric transition, an electric winch, an operator workstation, a unit of optical measuring channels, and a unit of normalising controllers is added to it, and each hydrophysical measuring channel through the corresponding normalising controller is connected to the central controller, besides, the first and second multiport optical modems and the rotating optical transition are added, and each optical measuring channel is connected to the corresponding input of the first multiport optical modem connected through the fibre-optic communication line of the conducting rope to the rotating optical transition connected to the second multiport optical modem connected to the operator workstation. The information from the measuring channels of the hydrophysical module is processed by the normalising controllers, and in compact way by the central controller through the multiport modem is transferred to the onboard device of the probe, and also in creation of conditions for development, manufacture, laboratory and natural studies of new optical measuring channels for identification and registration of quantity of a mineral suspended matter and the weighed organic substance in sea water, integration of currently existing measuring oceanologic channels, creation of the combined channel of the electric and fibre-optical communication line between submersible and onboard devices.

EFFECT: integration in a single hydrological-optical-chemical complex of all available measuring channels of oceanological parameters.

1 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to hydroacoustic equipment and to the creation of deployment-retrieval devices (DRD) of flexible extended trailing antennas (FETA) on submarines and on surface ships. The invention proposes a DRD structure in which the deployment of the antenna to the stream in case some part of the antenna is wound on a winch, and its other part is arranged in a tubular storage unit, is provided by the creation of excess pressure in the tubular storage unit by means of a centrifugal pump, a sealing device on the end face of the tubular storage unit, which is close to the winch, is made in the form of a cylindrical module of the same inner diameter as the tubular storage unit, which is rigidly and tightly attached to it, and the suction pipeline of the centrifugal pump is made of two branch pipes, one of which is directed outboard and the other one is tightly attached to the inner volume of the tubular storage unit with an additional conical flange coaxial to the tubular storage unit and installed near its fore end face between the conical flange connected to the pressure pipeline and the sealing device of the fore end face of the tubular storage unit, the conical flange of the pressure pipeline is oriented with its constriction to the aft part of the tubular storage unit, and the conical flange of the suction pipeline is oriented with its constriction to the fore part.

EFFECT: increasing the safety of deployment and retrieval of flexible extended trailing antennas, some part of which is wound on a winch of deployment and retrieval devices, and some part is located in the tubular storage unit, without its damages or stops.

1 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to devices for measurement of geophysical parameters in bottom area of seas and oceans. Substance: seismic module comprises a tight body (1), inside of which there is a hard disk drive (5), a unit (7) of a hydroacoustic communication channel, a ballast (2) breaker (8), a timer (9) of the breaker (8) of ballast (2), a flashing beacon (10), a joint (11) of external communication, a source of power supply (12), a hydrophysical module (13), a radio beacon (14), a seismic sensor (15), a unit (20) of spatial orientation. Besides, the unit (20) of spatial orientation comprises an electronic 3D compass, three accelerometers and three meters of angular speeds rigidly coupled with the seismic sensor (15). The seismic detector (15) is made in the form of a wideband molecular-electronic sensor. The tight body (1) is made in the form of a hemisphere with a base in the form of a plate, along the upper diameter of which there are mechanical elements of the ballast (2) breaker (8) installed. Mechanical elements of the ballast (2) breaker (8) are made in the form of slings (3), which are coupled to ballast (2) and tightly adjoin the base of the tight body (1) along its lower diameter. The hydroacoustic communication channel for connection of the seismic module with the dispatching station is made as single-relay.

EFFECT: increased validity of recorded data.

3 dwg

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to surface scientific and research vessels. Scientific and research icebreaking vessel is proposed for carrying out 3D seismic technology exploration irrespectively to ice conditions which vessel has a hull where seismic equipment is located, as well as a shaft for bay cable laying. To move source of acoustic waves untethered unmanned submersible is used which bases on a vessel and is dropped and lifted via separate vertical shaft using running - pulling tool.

EFFECT: improved operational performance of scientific and research vessel for seismic exploration.

3 cl, 1 dwg

FIELD: physics; geophysics.

SUBSTANCE: invention relates to geophysics and can be used in marine seismic prospecting. Disclosed is an underwater seismic recording system for reducing noise in seismic signals caused by reflected ghost waves or movement through the water. The system comprises two motion sensors. One sensor has a first response and sensitivity to noise caused by movement of the platform, as well as to acoustic waves. The second sensor has a different structure, which insulates the sensor from acoustic waves such that the response is primarily associated with noise caused by movement. Output data of the responses of the two sensors are combined to eliminate the effect of the noise caused by movement. Upon further combination with a hydrophone signal, noise caused by reflected ghost waves is reduced.

EFFECT: high accuracy of prospecting data.

14 cl, 19 dwg

FIELD: physics, signalling.

SUBSTANCE: invention relates to water craft and can be used to detect tsunami waves on the open ocean. The apparatus includes a platform (1) fitted with a buoy (11). The platform (1) is provided with a buoyancy function and the capacity to maintain a given underwater horizon through vessels (2) connected to the platform and by hoses (3, 4) to a cylinder (5) with compressed gas and a water pump (6). The platform (1) is fitted with a pressure sensor (7) (i.e. tsunami sensor), a control unit (8), a power supply unit (9) and a unit (10) for processing signals from the pressure sensor (7). The buoy (11) is linked to the platform by a cable-coupler (15). The buoy (11) is provided with a self-contained immersion and emersion system (12), a navigation signal receiver (13) and a transmitter (14) for transmitting information via a satellite channel.

EFFECT: faster notification of a tsunami wave owing to the proximity of the measurement equipment to the forecast earthquake source.

2 dwg

FIELD: measurement equipment.

SUBSTANCE: measurement system for research of small-scale turbulence in a near-surface layer of the sea comprises a stationary platform and an instrument container with sensor connected to measurement equipment fixed on the specified horizon in the near-surface layer of the sea. The instrument container is installed as capable of fixation on any specified horizons in the near-surface layer of the sea. It is provided with a facility to control its position and is fixed vertically in a cardan of a load frame made in the form of a ring arranged horizontally, to which three flexible ties are attached symmetrically around the circle, one of which is a cable-rope, which is connected to sensors and the facility for control of the position of the instrument container and is pulled through the unit fixed at the end of the boom, which is fixed by its other end on the lower deck of the platform with the possibility of rising upwards in the vertical plane relative to the place of fixation. Further the cable-rope is pulled via the unit fixed on the lower deck of the platform on the line of the boom axis, and via a hoist with a current collector is connected to measurement equipment installed on the platform. Each of two other flexible ties is pulled via one of units fixed on the lower deck of the platform symmetrically relative to the line of the boom axis. These two units with a unit fixed at the end of the boom, in plan are tops of an equilateral triangle. Then each of two mentioned flexible ties is connected to one of two other hoists installed on the platform. A streamlined weight of specified mass is fixed to the lower part of the instrument container on a sling of specified length.

EFFECT: invention increases efficiency and reliability of research of specified near-surface layer of the sea due to provision of stabilisation of sensors in space at the specified horizon with the possibility of their further movement and stable installation at any other specified horizons, and also due to reduction of labour inputs in manufacturing of a system and possibility of its operation without diving.

FIELD: physics.

SUBSTANCE: anchored profiling underwater observatory is linked with a control station and consists of: a subsurface buoy anchored by a steel buoy line which serves as the moving line for the profiling carrier, having a set of measuring sensors, a central microcontroller unit, an electric drive, and which moves on the moving line; a system for digital communication via a contactless inductive tap-in on the moving line, a surface buoy-guidepost with modems for transmission of data and telemetric information via a radio link, a hydroacoustic opening switch of the anchor ballast. On the moving line, over the hydroacoustic opening switch of the anchor ballast, there is a lower spherical buoy, having a modem for a hydroacoustic link inside it, an electric drive linked to a telescopic device, at the end of which a seismometer is mounted. The profiling carrier further includes sensors for determining content of hydrocarbons, carbon dioxide, alpha-, beta- and gamma-radioactivity.

EFFECT: improved operating conditions, broader functional capabilities of the underwater observatory.

2 dwg

FIELD: measuring instrumentation.

SUBSTANCE: group of inventions refers to procedure of ocean research by autonomous and automatic submarine stations of anchored type. Method involves probe movement within buoy with the use of changes and control of ratio of multidirectional forces, water displacement and weight, affecting the unit in vertical direction. The same forces unfold buoy rope, a cable link of assembly elements, into cable vertical during setting submersion. Device includes case with deformable ballast tank, probe drive consisting of ballast loading and discharge device with microcontroller, electric power source. Discharge device consists of mobile part in the form of gate valve in lower base of the case. Loading device in the upper base of the case includes loading choke which, in the upper position of ballast loading, enters immobile part of loading device, a constrictor connected to ballast injector attached rigidly on the floater and controlled by microcontroller. Constrictor embraces the choke tightly to form tight connection to the supply line of injector made in the form of water accumulation dosing cylinder.

EFFECT: repeated use of equipment in hydrophysical measurements.

3 cl, 4 dwg

FIELD: physics, acoustics.

SUBSTANCE: invention relates to methods of monitoring an underwater environment. The method of using rocket-propelled radiosonic buoys from surface vessels to monitor an underwater environment by arranging buoys in a circle, includes determining the coordinates of the centre of the circle, using a computer to determine the radius of the circle, the required number of buoys and coordinates of thereof, loading a launcher with the required number of rocket-propelled radiosonic buoys, solving, at firing control devices, launcher guiding tasks to perform firing, guiding the launcher for firing to a first point, supplying power to pyrotechnic cartridges for firing the rocket-engine of the rocket-propelled radiosonic buoys, firing the first rocket-propelled radiosonic buoy, guiding the launcher and firing a rocket-propelled radiosonic buoy to the next points, using signals from buoys after water touchdown and beginning of operation thereof. The computer calculates the radius of the sector in which movement of an underwater object is located, the required number of buoys and coordinates thereof.

EFFECT: remote monitoring an underwater environment.

2 cl, 3 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to search and underwater engineering work in the presence of a continuous ice cover in the region of an accident at an underwater facility, e.g. a submarine vessel. The method is based on transmitting acoustic signals in an aquatic environment. A signalling device is connected to a buoy by a strong cable, e.g. Kevlar; an article is shot through a torpedo launcher or released by a locking device from the body of the carrier, wherein the buoy floats to the ice surface, and the signalling device, which lies on the required level of propagation of sound waves, is triggered by a code signal for radiation. The device for transmitting a signal on an under-ice accident over a hydroacoustic channel by mounting the signalling device at a given depth includes a buoy. The buoy is equipped with a synthetic cable of given length, which is tied to the signalling device to hold said device at a depth of the area of the underwater audio channel, wherein the buoy floats and is pressed to the lower edge of the ice.

EFFECT: considerably easier search and rescue operations on submarine vessels in Arctic conditions by increasing the range of the signal of the emergency signalling device.

2 cl, 1 dwg

Mooring barrel // 2049699
The invention relates to servicing the offshore oil production facilities, subsea oil reservoirs, operated primarily in the Northern seas

The buoyancy module // 2049016
The invention relates to equipment for marine research, in particular to a device for creating buoyancy pritoplennye Autonomous buoy stations (PBS)

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to search and underwater engineering work in the presence of a continuous ice cover in the region of an accident at an underwater facility, e.g. a submarine vessel. The method is based on transmitting acoustic signals in an aquatic environment. A signalling device is connected to a buoy by a strong cable, e.g. Kevlar; an article is shot through a torpedo launcher or released by a locking device from the body of the carrier, wherein the buoy floats to the ice surface, and the signalling device, which lies on the required level of propagation of sound waves, is triggered by a code signal for radiation. The device for transmitting a signal on an under-ice accident over a hydroacoustic channel by mounting the signalling device at a given depth includes a buoy. The buoy is equipped with a synthetic cable of given length, which is tied to the signalling device to hold said device at a depth of the area of the underwater audio channel, wherein the buoy floats and is pressed to the lower edge of the ice.

EFFECT: considerably easier search and rescue operations on submarine vessels in Arctic conditions by increasing the range of the signal of the emergency signalling device.

2 cl, 1 dwg

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