Patents by Inventor Petr Yurevich Legejdo

Petr Yurevich Legejdo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for sea electrical survey of oil-and-gas deposits
    Patent number: 7728596
    Abstract: A sea electrical survey method for hydrocarbon deposits, situated under seabed not exceeding 10 meters of depth, is disclosed, comprising: providing a plurality of multi-channel bottom systems with receiving lines having at least three electrodes and capable to register electromagnetic signals, excitation devices generating a series of computer-controlled alternating-sign pulses, a horizontally positioned dipole, synchronizing the excitation devices and bottom systems, submerging the systems upon the seabed along a predetermined direction, aligning the receiving lines, moving the dipole within the survey zone, excitation of the pulses, registering signals, measuring the potentials difference and the spatial derivatives of the signals during the pulses and the pauses, recording data, analyzing the data with accounting the fields behavior in time and in space simultaneously, determining the environment resistivity and environment polarizability based on a predetermined mathematical model, and compiling the depo
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: June 1, 2010
    Inventors: Evgenij Dmitrievich Lisitsyn, Andrej Vladimirovich Tulupov, Alexandr Arkadevich Petrov, Vladimir Eduardovich Kyasper, Petr Yurevich Legejdo
  • Method and Device for Sea Electrical Survey of Oil-and-Gas Deposits
    Publication number: 20090085569
    Abstract: A sea electrical survey method for carbohydrates deposits, situated under seabed not exceeding 10 meters of depth, is disclosed, comprising: providing a plurality of multi-channel bottom systems with receiving lines having at least three electrodes and capable to register electromagnetic signals, excitation means generating a series of alternating-sign pulses controlled by a computer a horizontally positioned dipole, synchronizing the excitation means and bottom systems, submerging the systems upon the seabed along a predetermined direction, aligning the receiving lines, moving the dipole within the survey zone, excitation of the pulses, registering signals measuring the potentials difference and the spatial derivatives of the signals during the pulses and the pauses, recording data, analyzing the data with accounting the fields behavior in time and in space simultaneously, determining the environment resistivity and environment polarizability based on a predetermined mathematical model, and compiling the dep
    Type: Application
    Filed: June 15, 2006
    Publication date: April 2, 2009
    Inventors: Evgenij Dmitrievich Lisitsyn, Andrej Vladimirovich Tulupov, Alexandr Arkadevich Petrov, Valdimir Eduardovich Kyasper, Petr Yurevich Legejdo