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US20090092006 SEISMIC STREAMER PLATFORM  
A technique includes designing a streamer, which includes a cable and seismic sensors based at least in part on a relationship between vibration noise and a bending stiffness of the cable.
US20100329075 METHOD FOR ASSISTANCE IN THE LOCALIZATION OF TOWED STREAMERS COMPRISING A STEP FOR DEFINING AND A STEP FOR GENERATING DISTINCT ACOUSTIC CYCLES  
A method for assistance in the localization of streamers towed by a vessel including at least one onboard acoustic controller, each streamer having: geophysical data sensors; acoustic means for...
US20130155809 Method and Device for Managing the Acoustic Performances of a Network of Acoustic Nodes Arranged Along Towed Acoustic Linear Antennas  
A method and apparatus are provided for managing the acoustic performances of a network of acoustic nodes arranged along towed acoustic linear antennas. The network of acoustic nodes is adapted to...
US20130077435 METHODS AND APPARATUS FOR STREAMER POSITIONING DURING MARINE SEISMIC EXPLORATION  
Disclosed are apparatus and methods for streamer positioning during marine seismic exploration. In one embodiment, a designated location for each of one or more transponders is determined based on...
US20130155807 METHOD FOR DETERMINING POSITIONS OF SENSOR STREAMERS DURING GEOPHYSICAL SURVEYING  
A method for determining geodetic position of at least one point on a geophysical sensor streamer towed by a vessel in a body of water includes determining geodetic positions of a plurality of...
US20120230150 Method for determining positions of sensor streamers during geophysical surveying  
The geodetic position of a point on a streamer towed by a vessel in a body of water may be determined. Geodetic positions of a plurality positions along at least two of a plurality streamers towed...
US20120281498 METHOD AND SYSTEM FOR CONTROLLING STREAMERS  
A method and system for controlling the shape and separation of an arrangement of streamers towed behind a survey vessel. Each streamer is steered laterally by lateral steering devices positioned...
US20120051175 Method for compensating marine geophysical sensor measurements for effects of streamer elongation  
A method for determining a longitudinal position of at least one geophysical sensor on a towed marine streamer includes measuring a parameter related to tension at least one position along the...
US20130155808 Method and Device for Estimating an Inter-node Distance Between Nodes Arranged Along Towed Acoustic Linear Antennas  
A method and apparatus are provided for estimating an inter-node distance between a sender node and a receiver node belonging to a network comprising a plurality of nodes arranged along towed...
US20090316525 MARINE SEISMIC STREAMER SYSTEM CONFIGURATIONS, SYSTEMS, AND METHODS FOR NON-LINEAR SEISMIC SURVEY NAVIGATION  
Methods for determining by acoustic ranging relative positions of marine seismic streamers in a network of streamers are described, as well as streamer configurations and systems which overcome...
US20120020184 USING A DISTRIBUTED OPTICAL ACOUSTIC SENSOR TO POSITION AN OBJECT  
A distributed optical acoustic sensor is provided along a structure in a body of water. The distributed optical acoustic sensor is used to detect acoustic waves generated by at least one acoustic...
US20140153360 HEAD-FLOAT AND METHOD  
Method and streamer/source head-float system for connecting to a head portion of a streamer or to a lead-in or providing information about a source. The system includes a head-buoy configured to...
US20150117148 MARINE STREAMER INERTIAL NAVIGATING DRAG BODY  
A sensor streamer drag body system. At least some of the example embodiments include a system having a sensor streamer towable behind a vessel in a body of water, the sensor streamer defining a...
US20140064026 WAVE GLIDER WITH STREAMER ORIENTATION SENSOR  
A wave glider system includes a float having geodetic navigation equipment for determining a geodetic position and heading thereof. The glider includes an umbilical cable connecting the float to a...
US20090296519 DETERMINING POSITIONING OF SURVEY EQUIPMENT USING A MODEL  
To performing positioning of survey equipment, measurements of acoustic signals reflected from at least one boundary of a marine environment are received. The reflected acoustic signals are...
US20120134234 Declination Compensation For Seismic Survey  
In seismic survey for icy waters, streamers are towed behind a vessel under the water's surface to avoid ice. GPS readings may not be consistently obtained because the ice prevents a tail buoy...
US20130188451 BUOY BASED MARINE SEISMIC SURVEY SYSTEM AND METHOD  
A seismic survey system for recording seismic data underwater. The system includes first plural buoys configured to descend to a first predetermined depth (H1) in water, at least one buoy having a...
US20110122725 POSITION DETERMINATION OF A SEISMIC SOURCE ARRAY  
A method of obtaining information about the positions of sources in a marine seismic source array, comprises: determining respective notional signatures for m selected seismic sources, where m
US20090092005 CONTROLLING SEISMIC SOURCE ELEMENTS BASED ON DETERMINING A THREE-DIMENSIONAL GEOMETRY OF THE SEISMIC SOURCE ELEMENTS  
To control a seismic source having plural seismic source elements, a three-dimensional geometric shape of the plural seismic source elements is determined. Timings of activation of the plural...
US20090323467 SYSTEM AND TECHNIQUE TO OBTAIN STREAMER DEPTH AND SHAPE AND APPLICATIONS THEREOF  
A technique includes obtaining first measurements acquired by sensors of a towed seismic streamer, which are indicative of an inclination of the streamer. Based at least in part on the...
US20100074050 Determining a Position of an Object of a Positioning Network Associated with a Marine Survey Arrangement  
To determine a position of an object in a positioning network associated with a marine survey arrangement, images of targets on the object in the positioning network are captured with a plurality...
US20090290447 Measuring Electromagnetic Source Geometry  
An electromagnetic source for electromagnetic survey of a subsea formation includes a towfish configured to be towed by a surface vessel; a plurality of electrodes attached to the towfish; and an...
US20100002537 PERFORMING QUALITY CONTROL WITH RESPECT TO POSITIONING OF SURVEY HARDWARE  
To perform quality control with respect to positioning of survey hardware, survey navigation data is acquired regarding components of the survey hardware used to perform a survey operation with...
US20120020185 Collision Avoidance for Instrumented Probes Deployed From a Seismic Vessel  
One embodiment of the invention concerns a probe that couples to a seismic vessel via a tow cable. When deploying probes from a seismic vessel that is towing source arrays and streamers, the probe...
US20130121107 DEVICE AND METHOD FOR DETERMINING SEISMIC OFFSET IN MARINE ACQUISITION  
Computing device and method for generating an image of a subsurface. The method calculates an offset shift of measured offsets between a seismic source and plural receivers of a streamer. The...
US20140160886 COMMUNICATION SYSTEMS FOR WATER VEHICLES  
Various technologies described herein are directed to a method that includes deploying a plurality of wave gliders in a seismic survey area, where the plurality of wave gliders has one or more...
US20100202249 PARTICLE MOTION SENSOR-BASED STREAMER POSITIONING SYSTEM  
A technique includes disposing a particle motion sensor on a spread of at least one streamer and using the particle motion sensor to acquire a measurement of a signal, which is transmitted from an...
US20120300582 SYSTEM FOR DOPPLER POSITIONING OF SEISMIC SENSORS AND METHOD  
Method and system for determining positions of underwater sensors. The method includes sending a Doppler variant signal from a moving source; recording the signal with the at least one seismic...
US20130208565 METHODS AND SYSTEMS FOR CORRECTION OF STREAMER-DEPTH BIAS IN MARINE SEISMIC SURVEYS  
Computational systems and methods, to be carried out by the computational systems for determining streamer-depth bias during exploration-seismology experiments are disclosed. An...
US20120147700 Determining Streamer Depth and Sea Surface Profile  
A technique includes receiving data indicative of acoustic measurements acquired by receivers disposed on a seismic receiver spread including at least one streamer. The technique includes...
US20060187753 Acoustic ranging by application of linear period modulated sound  
A method and apparatus is provided for acoustic ranging by application of linear period modulated sound. In one aspect of the instant invention, an apparatus is provided for acoustic ranging by...
US20080304358 Method of Assisting The Deployment/Retrieval of Linear Acoustic Antennas Towed By A Vessel, During The Course of Which Distance-Measuring Means Carried By The Antennas Communicate with One Another  
A method of assisting the deployment/retrieval of linear acoustic antennas towed by a vessel, said linear antennas each having geophysical data sensors, means for measuring the distance of at...
US20090097355 METHOD FOR SIMULATING THE POSITIONING OF AT LEAST ONE STREAMER COMPRISING A STEP FOR PREDICTING THE CURRENT ON AT LEAST TWO DISTINCT POINTS OF THE STREAMER  
A method for simulating the positioning of at least one acoustic linear antenna towed in a study zone is provided. The method includes at least one simulation step of at least one future position...
US20090245019 Method and system for determining geodetic positions of towed marine sensor array components  
A method for determining positions of geophysical sensor streamers includes towing laterally spaced apart streamers maintained in relative relationship therebetween by paravanes proximate their...
US20110116343 Positioning a Seismic Acquisition System Using Electromagnetic Signals  
An apparatus includes a towed seismic acquisition system and a ranging system. The ranging system is adapted to use electromagnetic ranging signals to indicate a location of one or more points on...
US20130258807 METHODS AND APPARATUS FOR NODE POSITIONING DURING SEISMIC SURVEY  
Disclosed are apparatus and methods acoustic node positioning during a marine survey. In one embodiment, positions of a plurality of nodes are calibrated using acoustic transceivers. In addition,...
US20120195163 Determining a Streamer Position  
A technique includes receiving data acquired by a seismic sensor on a spread of at least one streamer. The data are indicative of a seismic source signature that is produced by a source seismic to...
US20140029381 METHOD AND APPARATUS FOR POSITIONING A CENTER OF A SEISMIC SOURCE  
The present invention provides a method and apparatus for positioning a center of a seismic source. The method includes determining a desired center-of-source of the seismic source and selecting...
US20110122724 POSITION DETERMINATION OF A SEISMIC SOURCE ARRAY  
A method of obtaining information about the positions of sources in a marine seismic source array that has N seismic sources, including at least Nunique types of sources that are nominally...
US20100054080 Determining Seismic Streamer Array Geometry And Seismic Sensor Response Using Dual Sensor Seismic Streamer Arrays  
A method for marine seismic surveying includes determining at least an initial depth of a plurality of spaced apart seismic sensors in a body of water. The sensors each include a substantially...
US20090296518 Method of Marine Seismic Data Acquisition  
A method of acquiring marine seismic data using an acoustic source to generate an acoustic signal, a portion of which is reflected at one or more subsurface formation interfaces as a seismic...
US20100002538 DETERMINING THE STRUCTURE OF A TOWED SEISMIC SPREAD ELEMENT  
A technique includes obtaining a plurality of sets of measurements of distances between nodes located on a seismic spread element while the element is in tow. Each set is acquired in response to...
US20090245021 RECONSTRUCTING LOW FREQUENCY DATA RECORDINGS USING A SPREAD OF SHALLOW AND DEEP STREAMERS  
A technique includes obtaining first data indicative of seismic measurements acquired by seismic sensors of a first set of towed streamers and obtaining second data indicative of seismic...
US20150085609 METHODS FOR GATHERING MARINE GEOPHYSICAL DATA  
In a first embodiment the invention comprises a method for gathering geophysical data, including towing geophysical data gathering equipment behind a survey vessel in a body of water, said...
US20120327741 DATA COLLECTION SYSTEM, MARINE SEISMIC SURVEY SYSTEM AND METHOD OF ESTIMATING A CORRECTED SOUND SPEED  
A data collection system 100 for estimating a corrected sound speed between a first point and a second point comprises a subsea acoustic transponder beacon (106) disposed at a fixed position...
US20110149682 Method and apparatus for positioning of seismic cables  
The present invention provides a method and apparatus for determining the position of a seismic cable being used to perform a marine seismic survey. The apparatus includes at least one seismic...
US20090285051 SENSING AND ACTUATING IN MARINE DEPLOYED CABLE AND STREAMER APPLICATIONS  
Methods and related systems are described for use with hydraulic fracturing and other oilfield applications. A tool body is positioned in a wellbore at a location near a subterranean rock...
US20090231953 Methods and Systems for Determining Coordinates of an Underwater Seismic Component in a Reference Frame  
A method comprising determining coordinates of a first point rigidly attached to a rigid body floating on the sea surface in a desired coordinate reference frame; measuring orientation parameters...
US20080253225 Seismic Cable Positioning Using Coupled Inertial System Units  
An apparatus and a method of its use in a marine seismic survey are disclosed. The apparatus includes a seismic survey object (106) and an inertial measurement device (130) coupled to the seismic...
US20100118645 COIL SHOOTING MODE  
The technique disclosed herein includes a method and apparatus for controlling streamer steering devices to maintain a coil streamer shape that gives coverage for a coil shooting plan. The...

Matches 1 - 50 out of 62 1 2 >