Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7426439 | Method and apparatus for marine seismic data acquisition The present invention provides a method and apparatus for seismic data acquisition. One embodiment of the method includes accessing data acquired by at least two particle motion sensors. The data includes a seismic signal and a noise signal and the at least two part... | 09/16/2008 |
| 7364007 | Integrated acoustic transducer assembly Acoustic transducers configured with integrated electronics technology are adapted to digitize signal data close to the transducer. The transducers are packaged with a reduced number of elements and sealed for exposure to harsh environments, without oil compensation... | 04/29/2008 |
| 7359282 | Methods and apparatus of source control for borehole seismic A method and apparatus for controlling seismic sources. The method and apparatus enable firing of a seismic sources at either a precise time or a precise position of the seismic source. Controlling the firing of the seismic source facilitates more accurate seismic d... | 04/15/2008 |
| 7339852 | Seismic acquisition system A seismic acquisition system comprising a remote-controlled buoy for conducting seismic acquisition operations. The buoy comprises an operating system for operating a seismic wave production device on the buoy, a placement system, a communications system, and dynami... | 03/04/2008 |
| 7336561 | System for attenuation of water bottom multiples in seismic data recorded by pressure sensors and particle motion sensors An up-going wavefield and a down-going wavefield are calculated at a sensor position from a pressure sensor signal and a particle motion sensor signal. Then, an up-going wavefield is calculated at a water bottom position substantially without water bottom multiples ... | 02/26/2008 |
| 7334661 | Acoustic logging tool sleeve An acoustic logging tool sleeve with a preferably discontinuous, alternating structure that is acoustically opaque in some zones, and acoustically transparent in others. The sleeve may be modular, with several stages connected together. The multiple stages provide a... | 02/26/2008 |
| 7318489 | Hydraulic motor arrangement and method of operating a hydraulic motor A hydraulic motor for use in subterranean drilling operations in which a drive fluid within a first reservoir is forced through the motor by a high pressure working fluid, such as drilling mud, the drive fluid entering a second reservoir upon exiting the motor. Upon... | 01/15/2008 |
| 7286442 | Method and apparatus for seismic data acquisition A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are teth... | 10/23/2007 |
| 7270214 | Method and apparatus for reducing and extracting wing-tip vortex energy The present invention provides an apparatus and a method for reducing wing-tip vortex energy during seismic exploration. The apparatus includes a vortex concentrator of deployed proximate a tip of a hydrofoil and a vortex reducing device deployed proximate the vorte... | 09/18/2007 |
| 7255196 | Windshield and sound-barrier for seismic sensors A system and method for reducing acoustic, wind or other background noise that may interfere with sensing of a seismic signal is provided. More specifically, a shield is provided to enclose a geophone and thereby protect it from harmful noise. The shield may compris... | 08/14/2007 |
| 7239577 | Apparatus and methods for multicomponent marine geophysical data gathering In one embodiment the invention comprises a particle velocity sensor that includes a housing with a geophone mounted in the housing. A fluid that substantially surrounds the geophone is included within the housing. The particle velocity sensor has an acoustic impeda... | 07/03/2007 |
| 7230878 | Methods and apparatus for seabed seismic data acquisition Methods and apparatus for acquiring seismic data using a seabed seismic data cable positioned on a seabed are described, one method including deploying a seabed seismic cable, the cable comprising two or more active sections separated by at least one jumper section;... | 06/12/2007 |
| 7221619 | Fiber optic strain gauge and cable strain monitoring system for marine seismic acquisition systems A method for operating a marine seismic survey system includes deploying from a seismic vessel at least two lead-in cables each functionally coupled at one end thereof proximate a respective paravane. The lead-in cables have at least one spreader cable functionally ... | 05/22/2007 |
| 7180827 | Surface acoustic antenna for submarines The invention relates to surface acoustic antennas for submarines. It consists, in a known antenna, in replacing certain pressure sensors with velocity sensors in order to obtain cardioid directivity with a zero oriented toward the hull of the submarine. It allows t... | 02/20/2007 |
| 7167413 | Towed streamer deghosting Apparatus and methods for reducing ghosts from hydrophone signals in a streamer towed underwater close to the sea surface. A multi-axis micro-electro-mechanical-system (MEMS) accelerometer with attitude sensing is used to reduce the frequency spectral notch in the r... | 01/23/2007 |
| 7132597 | Transducer for converting between mechanical vibration and electrical signal Transducer (100, 200, 300, 500, 600) for converting mechanical vibrations to an electrical signal and/or for converting an electrical signal to mechanical vibration. Damping liquid (122, 222, 522, 622) damps the relative vibration of transducer compone... | 11/07/2006 |
| 7120087 | Electronics-carrying module An electronic-carrying module (640), for example for use with a seismic data acquisition cable (400), is disclosed. The preferred electronic-carrying module (640) includes, first, an electronics carrier (106) having access means (107 | 10/10/2006 |
| 7104728 | Method for deploying seafloor equipment A method for deploying and retrieving seafloor equipment modules is disclosed. A conveyor has a fixed end and a free end. The conveyor is deployed into a body of water until the free end reaches, or is proximate to, the seafloor. The conveyor is dragged through the ... | 09/12/2006 |
| 7042803 | Marine seismic source towing apparatus and method A marine acoustic source system has relativley densely packed energy sources arrayed in a tandem-like fashion along a horizontal plane. Preferably, a longitudinal axis of each source lies orthogonal to a pre-determined towing direction. The system includes protectiv... | 05/09/2006 |
| 7031223 | Method for correcting seismic data for receiver movement during data acquisition A method is disclosed for processing seismic data. The method includes determining a position of a seismic energy source and seismic receivers at a time of actuation of the source. A velocity of the seismic receivers with respect to the source position is determined... | 04/18/2006 |
| 7028807 | Non-explosive acoustic source A non-explosive acoustic source utilizes the combustion of aluminum and water to generate an acoustic pulse. The operation of the non-explosive acoustic source relies on a water/aluminum reaction to generate a burst pressure. The source may be deployed as a single c... | 04/18/2006 |
| 7028806 | Acoustic isolator for downhole applications An apparatus for performing acoustic investigations while drilling a borehole in a subsurface geological formation comprises a longitudinally extending assembly conveyed in the borehole on a drilling tubular. The assembly and the drilling tubular have a drilling flu... | 04/18/2006 |
| 7016260 | Seismic data acquisition system using acquisition stations set on the sea bottom The invention is a system designed for acquisition of seismic data by means of acquisition stations set on water bottom of a water body. The system comprises acquisition stations (DSAU) combining a streamlined boom suited to penetrate the bottom and thus couple seis... | 03/21/2006 |
| 6942059 | Composite bandwidth marine vibroseis array The present invention provides marine vibroseis methods and apparatus that operate in an acquisition time frame significantly shorter than current marine vibroseis acquisition methods and comparable to marine airgun seismic source acquisition, while providing data s... | 09/13/2005 |
| 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. Permanent passive reception stations (1) comprising a he... | 08/23/2005 |
| 6906981 | Method and system for acquiring marine seismic data using multiple seismic sources A method for seismic surveying is disclosed which includes towing a first seismic energy source and at least one seismic sensor system. A second seismic energy source is towed at a selected distance from the first source. The first seismic energy source and the seco... | 06/14/2005 |
| 6903998 | Method for acquiring and processing seismic survey data using ocean bottom cables and streamers A method is disclosed for marine seismic surveying in which a seismic signal is detected in a body of water with a motion sensor and a pressure sensor positioned at a location proximate the bottom of the body of water. Seismic signals are detected with pressure sens... | 06/07/2005 |
| 6853604 | Solid marine seismic cable A support structure for piezoelectric elements in a marine seismic cable is provided. The support structure comprises upper and lower cylindrical halves, each with channels formed therein. Two axial channels are adapted to retain three piezoelectric elements each. A... | 02/08/2005 |
| 6791901 | Seismic detection apparatus and related method Seismic detection apparatus comprising seismic detection means capable of detecting a plurality of seismic components over a defined tetrahedral volume is provided. The seismic detection means comprises four three-component geophones. Seismic data acquired by the ge... | 09/14/2004 |
| 6771565 | Low voltage seismic sound source A boomer for generating acoustic signals in a marine seismic survey has a frame towed by a survey vessel. A coil is mounted to the frame and a conductive plate is adjacent to the coil. A capacitor is mounted to the frame, and control electronics system delivers an e... | 08/03/2004 |
| 6757218 | Semi-passive two way borehole communication apparatus and method The present invention provides a semi-passive two-way borehole communication system and method. The system includes a surface source signal generator for generating an acoustic signal. The acoustic source signal is transmitted downhole, and a downhole controllable r... | 06/29/2004 |
| 6704244 | Method for acquiring and processing seismic survey data using ocean bottom cables and streamers A method is disclosed for marine seismic surveying in which upgoing and downgoing components of a seismic wavefield at a seafloor location, and the seismic wavefield at a seismic streamer location substantially above the seafloor location are determined. ... | 03/09/2004 |
| 6681887 | Method for the determination of local wave heights and acoustic sensor in marine seismic signals A method is provided for analyzing received seismic signals which are received from a plurality of seismic sensors in response to operation of an acoustic source during a marine seismic survey. The seismic sensors are located at different offsets from the... | 01/27/2004 |
| 6619423 | Measuring device for measuring the elastic properties of a surface structure A measuring device for measuring the elastic properties of a surface structure (3), comprising a probe (2) arranged within a housing (1), a transmitter and at least one receiver, the transmitter transmitting acoustic pulses and the receiver picking up the... | 09/16/2003 |
| 6607050 | Integrated ocean bottom towed array for four-component seismic data acquisition An integrated ocean bottom towed four-component array for seismic data acquisition consists of a four-channel electronic section for seismic data collection, a gimbaled three-component geophone and a hydrophone in a housing. The array connects with a subm... | 08/19/2003 |
| 6606278 | Method for multiple suppression based on phase arrays An apparatus and method for suppressing multiples in the collection of marine seismic data comprises at least one source positioned in the body of water; at least one receiver positioned in the body of water below the air-water interface and near the sour... | 08/12/2003 |
| 6571906 | Underwater sound mitigation system for explosive testing A sound mitigation system and method reduce the transmission of acoustic output from explosions underwater. The system is submerged to bottom terrain of a body of water and has at a series of gas-generating devices providing volumes of gas that are fed to... | 06/03/2003 |
| 6552961 | Seismic source sensor A system for detecting source acoustic energy in seismic operations. The system is operable on land and in marine applications. On land, a piezoelectric film is positioned between a vibrator or other source baseplate and the soil. Compression of the piezo... | 04/22/2003 |
| 6341661 | Bow dome sonar A compact, modular sonar assembly for use on the bow of a ship having separate transmitting and receive arrays confined within a single acoustic housing. The narrow and compact design fits much better into the hydrodynamically desirable bulbous bow deign ... | 01/29/2002 |
| 6318497 | Pressure-sensitive switch, its method of calibration and use in a hydrophone array A pressure-sensitive switch comprises a base member having a mounting surface formed of electrically-insulating material; two electrodes mounted on the base member and each having an electrically-conductive contact surface, and a flexible diaphragm having... | 11/20/2001 |
