Patents Assigned to ION Geophysical Corporation
  • Patent number: 9405028
    Abstract: Methods, apparatuses, and systems are disclosed for datuming multi-component seismic data. In one example of such a method, a plurality of seismic traces are accessed, the plurality of seismic traces including data representative of amplitude and spatial gradient samples of a seismic wavefield at a plurality of recording locations in a medium. Using a computer-based processing unit, a wavefield propagation from the plurality of recording locations through a medium is initialized, using the amplitude and spatial gradient samples of the seismic wavefield. Seismic traces are generated that correspond to the propagated wavefield at defined locations within the medium.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: August 2, 2016
    Assignee: ION Geophysical Corporation
    Inventor: Robert Ian Bloor
  • Patent number: 9389328
    Abstract: A seismic spread is constructed having an arrangement of towed components to be neutrally buoyant in water when towed in a seismic survey. The towed components at least include streamers and paravanes. Immersed weight and drag of the towed components is determined, and drag forces versus buoyancy required to neutrally buoy the towed components at at least one tow speed in the water is calculated based on the determined weight and drag of the towed components. Floatation is configured for the seismic spread based on the calculated drag forces versus buoyancy; and the arrangement of the towed components in the seismic spread is constructed with the configured floatation.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: July 12, 2016
    Assignee: ION Geophysical Corporation
    Inventors: Curt Schneider, Timothy A. Dudley
  • Patent number: 9354343
    Abstract: 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 with a GPS receiver from trailing from streamer at the surface. Instead, a device tows on the streamer under the water's surface. The streamer's absolute position is tracked by intermittently bringing the towed device toward the surface so GPS readings can be obtained. The streamer's absolute position 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.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: May 31, 2016
    Assignee: ION Geophysical Corporation
    Inventors: Phillip Roberts, Robert Fischer, Noel Zinn, Curt Schneider, Joseph R. Gagliardi, Shawn Rice, Timothy A. Dudley, John Grant, Kevin Simpson
  • Patent number: 9294011
    Abstract: Methods and apparatuses are disclosed that assist in sensing underwater signals in connection with geophysical surveys. One embodiment relates to a transducer including a cantilever coupled to a base. The cantilever may include a beam and a first coupling surface angularly oriented from the beam, and the base may include a second coupling surface angularly oriented from the beam and substantially parallel to the first coupling surface of the cantilever. The transducer may further include a sensing material coupled between the first coupling surface of the cantilever and the second coupling surface of the base.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 22, 2016
    Assignee: ION Geophysical Corporation
    Inventor: Ken Kan Deng
  • Patent number: 9261617
    Abstract: A rope-tension system for a marine seismic cable comprising a series of sensor nodes connected between flexible cable sections connected to other sensor nodes and flexible sections by armored cable segments. The flexible sections, which are housed in flexible protective covers, have a pair of ropes as stress members. The two ropes are pivotably pinned at both ends to termination units at the opposite ends of the flexible sections. The two ropes extend through a ring positioned between the two termination units. The pivots at the rope ends form linkages with the ropes that allow the ropes to adjust their positions as the flexible section engages a curved surface during retrieval. The ring presents bearing surfaces with a large radius of curvature to the ropes to avoid sharp bending loads.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: February 16, 2016
    Assignee: ION Geophysical Corporation
    Inventor: Andre' W. Olivier
  • Publication number: 20160033660
    Abstract: Embodiments of the invention provide methods, systems, and apparatus for collecting seismic data in a marine environment. An ocean bottom cable (OBC) comprising a plurality of sensor nodes for collecting seismic data may be deployed to and retrieved from an ocean bottom during seismic operations using a winch. Such deployment and retrieval operations may exert substantial stress on the OBC at an interface between the sensor nodes and cable segments of the OBC. A reinforcement sleeve is provided to reduce the mechanical stress at such interfaces.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 4, 2016
    Applicant: ION Geophysical Corporation
    Inventors: André W. OLIVIER, Kyle J. SEDLACEK
  • Publication number: 20160018545
    Abstract: Methods, systems, and apparatuses are disclosed for sensing acoustic waves in a medium. One example system includes a first elongated member, a first motion sensor sensitive to vibrations of the first elongated member, a second motion sensor spaced apart from the first motion sensor and also sensitive to vibrations of the first elongated member, and a first vibration source operably coupled to the first elongated member and configured to vibrate the first elongated member.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 21, 2016
    Applicant: ION GEOPHYSICAL CORPORATION
    Inventor: Robert E. ROUQUETTE
  • Patent number: 9188688
    Abstract: A seismic information processing method and apparatus includes attenuating flexural wave noise information from seismic information. Flexural wave information removal includes receiving the seismic information using an information processing device interface, the seismic information having a plurality of directional components acquired using a multi-axis motion sensor coupled to ice floating on a body of water, the seismic information including desired seismic information and the flexural wave information. A noise model of the flexural wave information may be generated using at least one of the plurality of seismic information directional components using an information processing device. The noise model is improved using an adaptive correction filter, and the improved noise model is applied to at least one directional component of the received seismic information to attenuate the flexural wave information wave in the seismic information.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: November 17, 2015
    Assignee: ION Geophysical Corporation
    Inventors: Gary A. Sitton, Theodore C. Stieglitz
  • Patent number: 9152745
    Abstract: A model for predicting fracturing in shale can minimize surface disruption, protect groundwater, maximize efficiency of hydraulic fracturing, and manage fluids used in unconventional gas development. The model provides a more comprehensive understanding of the geological, geophysical, and geomechanical properties of shales and imbeds these properties in geomechanical computer simulations to predict both the reservoir performance from the fracturing, and the associated microseismic events generated by fracturing. Since the geological and geophysical properties can be estimated from surface seismic, well logs, and geologic concepts with regional context; the performance of the fracturing can be predicted and optimized. Since the microseismic events can be predicted with the model, the simulations can be verified and the model can be updated to be consistent with the observed microseismic.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: October 6, 2015
    Assignee: ION Geophysical Corporation
    Inventor: Michael Edwin Glinsky
  • Patent number: 9121956
    Abstract: Methods, apparatuses, and systems are disclosed that assist in determining a location to acquire seismic data. In one embodiment, a method includes modeling acquisition of seismic data in a first location based on a first factor that impacts acquisition of seismic data in the first location. The method also includes generating a modeled attribute based on the modeling, and determining whether to acquire seismic data in the first location based on the modeled attribute or the first factor.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: September 1, 2015
    Assignee: ION GEOPHYSICAL CORPORATION
    Inventors: Desmond John Flynn, Thomas Cheriyan, John Edward Grant, Stuart Maxwell Darling
  • Patent number: 9121969
    Abstract: Embodiments of the invention provide methods, systems, and apparatus for conserving power while conducting an ocean bottom seismic survey. Sensor nodes placed on an ocean floor may be configured to operate in at least an idle mode and an active mode. When a seismic source boat approached the sensor node, the node may adjust its mode of operation from an idle mode to an active mode. After the seismic source boat is no longer near the sensor node, the idle mode may be entered again to conserve power.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: September 1, 2015
    Assignee: ION GEOPHYSICAL CORPORATION
    Inventors: Timothy B. Rigsby, Felix E. Bircher
  • Patent number: 9081120
    Abstract: Apparatus and method for retrieving instrumented marine cables. The cable-handling apparatus comprises carriers that capture and pull on rigid elements in or on a marine cable to retrieve the cable hand-over-hand onto a deployment vessel. The carriers are spaced apart along an endless path on spacings matching the spacings of the rigid elements in the cable. A take-up mechanism allows manual adjustment of the relative spacings of the carriers to account for tolerances in the spacings of the rigid elements on the cable.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: July 14, 2015
    Assignee: ION Geophysical Corporation
    Inventor: Andre′ W. Olivier
  • Patent number: 8982662
    Abstract: A multi-component sensor of a fluid-borne acoustic wave that senses pressure and up to three orthogonal particle motion components. The sensor is unresponsive to motion of the sensor mount. Furthermore, the sensor is substantially unresponsive to the turbulent flow of the acoustic medium past the sensor.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: March 17, 2015
    Assignee: ION Geophysical Corporation
    Inventors: Robert E. Rouquette, Andre′ W. Olivier, Dale J. Lambert
  • Patent number: 8923091
    Abstract: A system and a method for rejecting noise in an underwater sensor cable, such as a towed streamer or an ocean-bottom cable. An adaptive hydrodynamic model of the cable produces an estimated sensor signal from a raw sensor signal from a particle-motion sensor, such as an accelerometer. The estimated sensor signal represents an estimate of the response of the underwater cable to cable motion absent seismic events. A noise-reduced response to particle motion alone is produced by subtracting the estimated sensor signal from the raw sensor signal to reject cable motion and other noise effects in the raw sensor signal. A seismic event detector uses a hydrophone signal from an acceleration-canceling hydrophone to disable the adapting of the hydrodynamic model during seismic events. The hydrophone signal is combined with the response to particle motion by PZ summation to produce a deghosted seismic response signal.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: December 30, 2014
    Assignee: ION Geophysical Corporation
    Inventor: Dale J. Lambert
  • Publication number: 20140328138
    Abstract: An underwater seismic system for reducing noise due to ghost reflections or motion through the water from seismic signals. The system includes two motion sensors. One sensor has a first response and is sensitive to platform-motion-induced noise as well as to acoustic waves. The other sensor has a different construction that isolates it from the acoustic waves so that its response is mainly to motion noise. The outputs of the two sensor responses are combined to remove the effects of motion noise. When further combined with a hydrophone signal, noise due to ghost reflections is reduced.
    Type: Application
    Filed: May 12, 2014
    Publication date: November 6, 2014
    Applicant: ION Geophysical Corporation
    Inventors: Dale J. Lambert, Andre' W. Olivier, Robert E. Rouquette
  • Publication number: 20140278120
    Abstract: Embodiments of locating seismic events are disclosed. In one embodiment, a single difference seismic locator and a reverse double difference seismic locator are combined into a combined system of equations, and the combined system of equations is solved to determine a location of the seismic event in substantially real time relative to the seismic event. The combined system of equations may be weighted such that the determined location of the seismic event is partially influenced by the single difference seismic locator and partially influenced by the reverse double difference seismic locator.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: ION Geophysical Corporation
    Inventors: Daniel S. Kahn, Michael E. Glinsky
  • Publication number: 20140254315
    Abstract: Embodiments of the invention provide methods, systems, and apparatus for conserving power while conducting an ocean bottom seismic survey. Sensor nodes placed on an ocean floor may be configured to operate in at least an idle mode and an active mode. When a seismic source boat approached the sensor node, the node may adjust its mode of operation from an idle mode to an active mode. After the seismic source boat is no longer near the sensor node, the idle mode may be entered again to conserve power.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 11, 2014
    Applicant: ION Geophysical Corporation
    Inventors: Timothy B. Rigsby, Felix E. Bircher
  • Publication number: 20140241124
    Abstract: Methods, apparatuses, and systems are disclosed for datuming multi-component seismic data. In one example of such a method, a plurality of seismic traces are accessed, the plurality of seismic traces including data representative of amplitude and spatial gradient samples of a seismic wavefield at a plurality of recording locations in a medium. Using a computer-based processing unit, a wavefield propagation from the plurality of recording locations through a medium is initialized, using the amplitude and spatial gradient samples of the seismic wavefield. Seismic traces are generated that correspond to the propagated wavefield at defined locations within the medium.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Applicant: ION GEOPHYSICAL CORPORATION
    Inventor: Robert Ian Bloor
  • Patent number: 8737166
    Abstract: A method for verifying the accuracy of a wave velocity model. The method may include generating an extended image using the wave velocity model, operating on the extended image using an annihilator, where the extended images represent a geophysical field, and determining if the extended image obeys at least one physical characteristic. In the event that the extended image does not obey at least one physical characteristic the method may include recreating or altering the wave velocity model accordingly.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: May 27, 2014
    Assignee: Ion Geophysical Corporation
    Inventor: Ivan Vasconcelos
  • Patent number: 8730766
    Abstract: An underwater seismic system for reducing noise due to ghost reflections or motion through the water from seismic signals. The system includes two motion sensors. One sensor has a first response and is sensitive to platform-motion-induced noise as well as to acoustic waves. The other sensor has a different construction that isolates it from the acoustic waves so that its response is mainly to motion noise. The outputs of the two sensor responses are combined to remove the effects of motion noise. When further combined with a hydrophone signal, noise due to ghost reflections is reduced.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: May 20, 2014
    Assignee: ION Geophysical Corporation
    Inventors: Dale J. Lambert, André W. Olivier, Robert E. Rouquette