Patents Represented by Attorney ExxonMobil Upstream Research Co. Law Department

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  • Logarithmic spectrum transmitter waveform for controlled-source electromagnetic surveying
    Patent number: 7539279
    Abstract: Waveforms for controlled source electromagnetic surveying. The waveforms have frequency spectra that include three or more frequencies spaced at substantially equal intervals on a logarithmic frequency scale and spanning a bandwidth of about one decade or more, at least three of which frequencies have approximately equal corresponding amplitudes.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: May 26, 2009
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Xinyou Lu, Leonard J. Srnka
  • Stability enhanced water-in-oil emulsion and method for using same
    Patent number: 7186673
    Abstract: A method for enhancing the stability of a water-in-oil emulsion pretreating at least a portion of the oil prior to emulsification. The pretreatment step may consist of adding polymers to the oil, biotreating the oil, photochemically treating the oil, or combinations thereof. The emulsion may be used in various enhanced oil recovery methods including using the emulsion as a flooding agent to displace hydrocarbons in a subterranean formation, and using the emulsion as a barrier fluid for diverting flow of fluids in the formation.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: March 6, 2007
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Ramesh Varadaraj, James R. Bragg, Dennis G. Peiffer, Chester W. Elspass
  • Method of manufacturing hot formed high strength steel
    Patent number: 7048810
    Abstract: A method for processing a hot formed, high-tensile-strength steel having an ultimate tensile strength (UTS) of at least about 730 MPa (105 ksi) and excellent toughness to retain essentially all the strength and toughness is provided. This processing is needed for the fabrication of high strength fittings that are used in the construction of linepipe for transport of natural gas, crude oil, as well as other applications. Furthermore, the hot formed high strength steel may be weldable with a Pcm of less than or equal to 0.35.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: May 23, 2006
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Clifford W. Petersen, Jayoung Koo, Narasimha-Rao V. Bangaru, Michael J. Luton
  • Method for performing stratigraphically-based seed detection in a 3-D seismic data volume
    Patent number: 7024021
    Abstract: The invention is a method for performing a stratigraphically-based seed detection in a 3-D seismic data volume. The method incorporates criteria that honor the layered nature of the subsurface so that the resulting seismic objects are stratigraphically reasonable. The method may be used to extract from a seismic data volume all seismic objects that satisfy the input criteria. Alternatively, the method may be used to determine the size and shape of a specific seismic object in a seismic data volume.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: April 4, 2006
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Paul A. Dunn, Marek K. Czernuszenko