INPUT/OUTPUT, INC. Patent applications |
Patent application number | Title | Published |
20100071989 | Apparatus and Method for Generating a Seismic Source Signal - A seismic source signal generator includes a mass, a primary accumulator and a secondary accumulator, the secondary accumulator having an internal volume smaller than an internal volume of the primary accumulator. A method for generating a signal using a seismic vibrator includes operating the seismic vibrator using hydraulic fluid, damping hydraulic pressure deviations in the hydraulic fluid using a first accumulator in hydraulic communication with the hydraulic fluid, and damping pressure deviations in the hydraulic fluid using a second accumulator in hydraulic communication with the hydraulic fluid, the second accumulator having an internal volume smaller than an internal volume of the first accumulator. | 03-25-2010 |
20090211509 | POSITION CONTROLLER FOR A TOWED ARRAY - A position controller capable of controlling the depth or lateral position of a towed array. The position controller comprises a tubular fuselage from which a pair of wings may be extended over a range of sweep angles between fully open and stowed positions. In fully or partly open positions, two wings present a positive angle of attack relative to the axis of the fuselage. In the stowed position, the wings are fully retracted into a wing receptacle within the fuselage for unfettered passage into and out of a submarine on the array deployment and retrieval handling system. | 08-27-2009 |
20090073807 | GENERATING SEISMIC VIBRATOR SIGNALS - A method and apparatus for generating a seismic source signal are provided for generating energy in the form of a plurality of time sequence vibratory signals, the vibratory signals being partitioned as a function of time and/or frequency, wherein each of the plurality of signals comprises a distinguishing signature. The partitioned vibratory signals are emitted into a terrain of interest as seismic source signals for conducting a seismic survey. | 03-19-2009 |
20080291778 | STABILIZED STREAMER CONNECTION SYSTEM - A connection system for connecting external devices to a streamer. The connection system comprises three outer collars maintained collinearly aligned by a stabilizing member, such as a lightweight, rigid tube, attached to each outer collar. The tube extends parallel to the bores of the outer collars. The forward and aft outer collars ride on races formed on the periphery of inner collars clamped around mounting structure in the interior of the streamer. An external device is attached to the forward collar and to the intermediate collar, which does not ride on an inner collar. The spacing between the forward and intermediate collars is fixed by the standard spacing of the two attachment points in standard external devices. The spacing between the forward and aft collars is set by the specified spacing of mounting structures in the interior of the streamer. | 11-27-2008 |
20080285380 | SEISMIC STREAMER WITH IRREGULARLY SPACED HYDROPHONES - A seismic streamer and a method for positioning a group of hydrophones in a seismic streamer. The hydrophones in a group are spaced irregularly along the length of the streamer to reduce the influence of bulge-wave noise and flow noise on the hydrophone group response. The irregular spacing may be produced as pseudorandom deviations of the actual positions of the hydrophones from a nominal uniform spacing of hydrophones. | 11-20-2008 |
20080232195 | Apparatus and Method for Processing Geophysical Information - A seismic information processing method for determining a property related to an earth subsurface structure includes performing a first processing operation on geophysical information using a computer operating according to a first processing parameter set and generating a first result from the first processing operation. The method may include performing a second processing operation on the first result using the computer and generating a second result from the second operation. At least one measurement point of the second result is evaluated using the computer. The first processing parameter set may be varied at least once to a second processing parameter for processing the geophysical information. The first operation, the second operation and the evaluation are repeated using the second processing parameter set. At least one of the first result, the second result and the evaluation is used for generating the property relating to the earth subsurface structure. | 09-25-2008 |
20080212406 | METHOD FOR LATERALLY STEERING STREAMER CABLES - A device and a method for laterally steering a streamer cable towed underwater behind a seismic survey vessel. The device includes a cable-steering assembly rotatably attached to a streamer cable. The assembly includes a body to which one or more wings are mounted. The wings are arranged to pivot about pivot axes. The assembly is ballasted so that the pivot axes of the wings are largely in a vertical plane. A conventional cable-leveling bird is converted to one version of a cable-steering device by ballasting to maintain the pivot axes of the bird's wings largely vertical. With an orientation sensor for sensing the orientation of the wings, the cable-steering device adjusts the angle of the wings to provide a sideward component of force to steer the streamer. | 09-04-2008 |