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7613071 |
Seismic telemetry system with steerable antennas
A system for remotely controlling, acquiring and monitoring the acquisition of seismic data. The system includes remote equipment for collecting seismic data and for transmitting and receiving...
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7573782 |
Seismic acquisition system
An apparatus and method for collecting data acquired during a seismic survey are disclosed. The apparatus is a seismic survey system, comprising a plurality of data sources, a plurality of cells,...
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7466627 |
System and method for wireless data collection from seismic recording buoys
A seismic data acquisition telemetry system includes a seismic vessel including a data recording system thereon. The system includes a seismic data gathering unit in operative connection with at...
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7298671 |
Seismic-data acquisition methods and apparatus
A self-contained data acquisition unit is provided for acquiring seismic data. The unit has a microprocessor and an antenna adapted to receive an electromagnetic signal. A decoder is connected with...
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7269095 |
Synchronization of seismic data acquisition systems
A network distributed seismic data acquisition system comprises seismic receivers connected to remote acquisition modules, receiver lines, line tap units, base lines, a central recording system and...
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7224642 |
Wireless sensor data processing systems
A wireless network includes a plurality of sensors; and a wireless station adapted to communicate with the plurality of sensors, each wireless station having a positioning system to provide 3D...
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7177232 |
Wireless radio frequency hydrophone system
A wireless hydrophone system includes a hydrophone joined to a preamplifier. A serial A/D converter receives the amplified hydrophone signal and provides a serial digital output representative of...
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7124028 |
Method and system for transmission of seismic data
The transmission method utilizes multiple seismic acquisition units within an array as intermediate short range radio receivers/transmitters to pass collected seismic data in relay fashion back to...
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7117094 |
Seismic measuring system including GPS receivers
A system for analyzing three-dimensional seismic data includes a plurality of digitizer units, each with a configuration of geophones, a data recording and control center, a base GPS receiver with...
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6999377 |
Acquiring seismic data
Methods and systems are provided for acquiring seismic data. Data are collected representing acoustic signals received from the Earth at distinct geographic locations. Data representing an ambient...
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6944096 |
Method of accurately determining positions of deployed seismic geophones
A method is provided for accurately determining the physical location of a deployed seismic geophone used in seismic investigations by using a portable navigational satellite receiver to obtain a...
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6932185 |
Acquisition method and device for seismic exploration of a geologic formation by permanent receivers set on the sea bottom
A method and device for seismic exploration of a subsea geologic formation by pickups set on the sea bottom and intermittently connectable to active data acquisition stations ( 11 ) brought nearby....
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6891733 |
Seismic data acquisition module
A seismic data acquisition module includes a motherboard that is environmentally protected as a independent unit by an integral sheath, envelope or encapsulating cover. The motherboard unit is...
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6459654 |
Transmission method and system using a standard transmission network for connecting elements of a seismic device
Transmission method for connecting together a central control and seismic recording station (SCC), local intermediate control and concentration stations (RRS) and local seismic data acquisition,...
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6430106 |
Seismic exploration device and method of operation thereof with remote control processing of seismic signals produced by individual seismic sensors
A seismic signal reception device on land comprising a large number of sensors each associated with an adjusting means which may be remote-controlled from a central control and recording station,...
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6078283 |
Remote seismic data acquisition unit with common radio and GPS antenna
Remote seismic data acquisition unit for receiving seismic radio signals, having the capability of receiving both seismic data acquisition radio signals and GPS signals, uses a single antenna for...
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6070129 |
Method and system for transmitting seismic data to a remote collection station
The invention pertains to transmission to a remote station, by means of transmission channels (generally radio transmission channels), of seismic data acquired by a data collection equipment...
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6061299 |
Method of transmitting compressed seismic data
The invention relates to a two-phase method of transmitting, to a central station (CS), seismic signals received by seismic receivers (R) and picked up by collecting units (A) disposed in the...
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6002641 |
Apparatus and method for planting seismic sensors
An apparatus and method are provided for ensuring good coupling and vertically planting of seismic receivers while substantially reducing the need for interconnecting wires and costly surveys. The...
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5822273 |
Seismic acquisition and transmission system with functions decentralization
The invention comprises several groups of local units (BA) suited for the acquisition, the processing and the transmission of data collected in the field by seismic receivers, each of these groups...
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5724311 |
Method and device for the long-term seismic monitoring of an underground area containing fluids
Within the scope of operations of long-term regular monitoring of an underground area, a seismic emission-reception device is installed in a fixed position on the production site, so as to have...
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5706250 |
Seismic transmission method and system utilizing concentration units
Seismic data acquisition devices (BA) distributed in an exploration zone are divided into n groups (GA1 to GAn) and, therein, into sub-groups having each a specific frequency for communicating with...
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5681008 |
Remote identification, location and signaling response system
A wireless apparatus and communication system for remotely determining the unique identification of individual remote devices, among a plurality of remote devices, and to simultaneously determine...
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5650981 |
Multi-vessel timing synchronization method and device
This invention relates generally to a method and system for synchronizing the timing of events between and among vessels using a common timing reference.
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5550787 |
Seismic acquisition system with decentralized processing means
The system includes a plurality of acquisition devices (A i ) for collecting signals received by receivers (Rk) and a central control, recording and processing station. This station manages the...
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5481502 |
System of acquistion and centralization of data obtained through a permanent plant for exploring a geologic formation
The invention centralizes data acquired through active or passive monitoring equipments installed permanently in contact with a geologic formation and notably in wells, under the control of one or...
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5392771 |
Underwater monitoring and communication system
A monitoring device for portable breathing apparatuses having a manometer by means of which the pressure in the pressure container of the breathing apparatus is detected, and having a transmitter...
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5359324 |
Well logging apparatus for investigating earth formations
A logging-while-drilling system is disclosed in which a first subassembly is included near the drill bit, and this subassembly comprises a conducting body with measuring means disposed in it and a...
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5276655 |
Method and device for simplifying the localization of a subsurface zone within the scope of a seismic exploration
A method for the automatic association, with seismic signals received by receivers (R1 . . . Rn) distributed on a site to be explored, of topographic data relative to the location of these...
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5206835 |
Modular device for reception, the acquisition and the transmission of seismic data with several multiplexing levels
Modular device for the reception, the acquisition and the transmission, to a central control and recording unit, of signals picked up by a very large number of seismic acoustic receivers...
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4979152 |
Device for transmitting signals by radio and cable between a central control and recording system and data acquisition devices
In a data acquisition for seismic exploration, where the terrain is rugged or includes natural features which prohibit satisfactory radio communication between a central control and recording...
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4908803 |
Semi-sequential transmission method and system using simultaneously several radio transmission frequencies for connecting a seismic reception assembly to a central control and recording laboratory
A semi-sequential transmission method and system are provided making it possible for successive groups of seismic acquisition apparatus to communicate simultaneously, using several transmission...
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4905205 |
Method for transmitting to a central recording device seismic data collected by acquisition apparatus distributed over the ground and a device for implementing same
A method is provided for the transfer to a central recording device of data corresponding to signals received by a set of seismic sensors which have been sampled, digitized and stored by a...
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4885724 |
Cableless seismic digital field recorder having on-site seismic data processing capabilities
An improved cableless seismic digital recording system is disclosed which records seismic-trace data generated by any type of seismic source, including high energy impulsive seismic sources, such...
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4868795 |
Power leveling telemetry system
A seismic telemetry system with automatic power leveling is comprised of a command station (10) and a plurality of remote data acquisition units (14). Each of the DAU's (14) includes an antenna...
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4815044 |
Seismic signal transmission system using relay radios
A system is provided for radio transmission between a central control and recording laboratory and spaced apart acquisition boxes in which relay transmission units are used for communicating with...
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4805160 |
Data transmission method for ocean acoustic tomography
The present invention enables tomography data in the sea to be collected and transmitted via an artificial satellite to a ground station. Accordingly, data on the Doppler phenomenon and shift of a...
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4736299 |
Reflection seismograph method and apparatus
A reflection seismograph collects data received over a plurality of channels in a field location and provides data recorded on a recording medium for processing at a home data processing site in...
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4725992 |
Adaptive seismometer group recorder having enhanced operating capabilities
In a seismic exploration system, an adaptive seismometer group recorder having enhanced operating capabilities for acquiring, processing, and storing seismic signals is provided. The adaptive...
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4712199 |
Process for controlling the storage of data received by a seismic recording system and a device for implementing same
A process is provided for controlling the storage in a recording system of signal samples received successively over a transmission channel. The series of samples to be transmitted are subdivided...
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4674068 |
Method and apparatus associated with a microcomputer system for automatically indicating a next-in-time positional parameter of an exploration system that includes two recording trucks
The present invention relates to a method and apparatus for generating, displaying and transmitting next-in-time from a first recording truck to a second recording truck to thereby provide...
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4644506 |
Device for determining the position in the water of an elongate element towed while submerged
A device for determining the position in the water of an elongate element (a seismic streamer for example) towed while submerged, by means of measuring elements such as compasses and pressure...
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4639901 |
Method for testing cableless seismic digital field recorders
Test features are incorporated in an improved cableless seismic digital recording system recorder. The improved recorder facilitates application of earlier cableless seismic digital recording...
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4594692 |
Seismic signal generator
A system for testing seismic signal recording equipment wherein a test signal is generated which simulates the output of at least one seismic sensing device, and, thereafter, the test signal is...
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4589100 |
Method and apparatus for positioning seismic arrays
A seismic data recording system includes a central station and a plurality of remote seismic data recording units that are deployed within a desired region relative to the central station. The...
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4583206 |
Device for the sequential transmission of signals by radio or by cable, between a central control system and data acquisition apparatuses
Device for the sequential transmission of signals by radio or by cable between a central control and recording station and local data acquisition apparatuses, comprising cables connecting said data...
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4493063 |
Method and apparatus for seismic geophysical exploration
A method and apparatus for seismic geophysical exploration is disclosed wherein the seismic exploration system includes a seismic energy source, a central recording and control station, a plurality...
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4463451 |
System for seismic digital data acquisition over water covered areas
A seismic data acquisition system for use in shallow water covered areas comprises a flotation device which serves also to house the electronic components; anchoring device with mechanical filter...
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4366561 |
Method and apparatus for testing a plurality of geophones
In a seismic exploration system wherein a plurality of geophones are utilized to detect seismic waves and transduce the detected seismic waves into representative electrical signals, method and...
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4320473 |
Borehole acoustic telemetry clock synchronization system
In a borehole telemetry system for acoustically transmitting data over a pipe suspended in a borehole, the level of noise in the data stream is inherently high, making the use of discrete...
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