Valeri A Korneev

6941227, Sep 6, 2005

Apr 30, 2002

10/137201

Gennady M. Goloshubin - Sugar Land TX, US
Valeri A. Korneev - Lafayette CA, US

The Regents of the University of California - Oakland CA

G01V001/28

702 17, 702 16

A method for identifying, imaging and monitoring dry or fluid-saturated underground reservoirs using seismic waves reflected from target porous or fractured layers is set forth. Seismic imaging the porous or fractured layer occurs by low pass filtering of the windowed reflections from the target porous or fractured layers leaving frequencies below low-most corner (or full width at half maximum) of a recorded frequency spectra. Additionally, the ratio of image amplitudes is shown to be approximately proportional to reservoir permeability, viscosity of fluid, and the fluid saturation of the porous or fractured layers.

7136757, Nov 14, 2006

May 2, 2005

11/120579

Gennady M. Goloshubin - Sugar Land TX, US
Valeri A. Korneev - Lafayette CA, US

The Regents of the University of California - Oakland CA

G01V 1/28

702 17, 702 16

A method for identifying, imaging and monitoring dry or fluid-saturated underground reservoirs using seismic waves reflected from target porous or fractured layers is set forth. Seismic imaging the porous or fractured layer occurs by low pass filtering of the windowed reflections from the target porous or fractured layers leaving frequencies below low-most corner (or full width at half maximum) of a recorded frequency spectra. Additionally, the ratio of image amplitudes is shown to be approximately proportional to reservoir permeability, viscosity of fluid, and the fluid saturation of the porous or fractured layers.

7529151, May 5, 2009

Feb 15, 2005

11/058985

Valeri A. Korneev - LaFayette CA, US

The Regents of the University of California - Oakland CA

G01V 1/42

367 31, 367 27, 367 57, 181106

The detailed analysis of cross well seismic data for a gas reservoir in Texas revealed two newly detected seismic wave effects, recorded approximately 2000 feet above the reservoir. A tube-wave () is initiated in a source well () by a source (), travels in the source well (), is coupled to a geological feature (), propagates () through the geological feature (), is coupled back to a tube-wave () at a receiver well (), and is and received by receiver(s) () in either the same () or a different receiving well (). The tube-wave has been shown to be extremely sensitive to changes in reservoir characteristics. Tube-waves appear to couple most effectively to reservoirs where the well casing is perforated, allowing direct fluid contact from the interior of a well case to the reservoir.

7602669, Oct 13, 2009

Oct 30, 2007

11/978573

Valeri A. Korneev - Lafayette CA, US
Andrey Bakulin - Houston TX, US

The Regents of the University of California - Oakland CA

G01V 1/42

367 31, 367 25, 367 57

The detailed analysis of cross well seismic data for a gas reservoir in Texas revealed two newly detected seismic wave effects, recorded approximately 2000 feet above the reservoir. A tube-wave () is initiated in a source well () by a source (), travels in the source well (), is coupled to a geological feature (), propagates () through the geological feature (), is coupled back to a tube-wave () at a receiver well (), and is and received by receiver(s) () in either the same () or a different receiving well (). The tube-wave has been shown to be extremely sensitive to changes in reservoir characteristics. Tube-waves appear to couple most effectively to reservoirs where the well casing is perforated, allowing direct fluid contact from the interior of a well case to the reservoir.

61086061, Aug 22, 2000

Sep 15, 1997

8/929955

Valeri A. Korneev - Albany CA
Kurt T. Nihei - Oakland CA
Larry R. Myer - Benicia CA

Gas Research Institute - Chicago IL

G01V 142

702 13

A method for detection of a disturbance in a waveguide comprising transmitting a wavefield having symmetric and antisymmetric components from a horizontally and/or vertically polarized source and/or pressure source disposed symmetrically with respect to the longitudinal central axis of the waveguide at one end of the waveguide, recording the horizontal and/or vertical component or a pressure of the wavefield with a vertical array of receivers disposed at the opposite end of the waveguide, separating the wavenumber transform of the wavefield into the symmetric and antisymmetric components, integrating the symmetric and antisymmetric components over a broad frequency range, and comparing the magnitude of the symmetric components and the antisymmetric components to an expected magnitude for the symmetric components and the antisymmetric components for a waveguide of uniform thickness and properties thereby determining whether or not a disturbance is present inside the waveguide.

20160116621, Apr 28, 2016

Oct 28, 2015

14/924821

- San Ramon CA, US
Thomas M. Daley - Oakland CA, US
Valeri A. Korneev - Benicia CA, US

G01V 1/40

Embodiments of a method for detecting well integrity failure are disclosed herein. In general, embodiments of the method utilize seismic signals for detection. In particular, embodiments of the method may use recording of passive or active seismic signals. Further details and advantages of various embodiments of the method are described in more detail in the application.