Kenneth R Green

US Patent:

7383132, Jun 3, 2008

Filed:

Feb 10, 2006

Appl. No.:

11/351785

Inventors:

Kenneth Green - Houston TX, US
Olivier M. Burtz - Houston TX, US
Denny E. Willen - Houston TX, US

Assignee:

ExxonMobil Upstream Research Co. - Houston TX

International Classification:

G01V 1/28
G06F 19/00

US Classification:

702 6, 702 14

Abstract:

Method for enhancing resistive anomalies in electromagnetic geophysical survey data. Scaled values of a measured electromagnetic field parameter are plotted on a depth section at locations related to corresponding source/receiver locations. Scaling is performed relative to a reference signal selected to represent a baseline free of unknown resistive bodies. Scaled values are represented by a color scale in the display, and the color scale may be adjusted to enhance perceived anomalies. The method may be employed in either the frequency domain or the time domain.

US Patent:

8014988, Sep 6, 2011

Filed:

Feb 15, 2007

Appl. No.:

12/280330

Inventors:

Leslie A. Wahrmund - Kingwood TX, US
Kenneth E. Green - Houston TX, US
Dmitriy A. Pavlov - The Woodlands TX, US
Leonard J. Srnka - Bellaire TX, US

Assignee:

ExxonMobil Upstream Research Co. - Houston TX

International Classification:

G06G 7/48
G06F 7/60
G06F 17/10
G01V 1/40
G01V 3/18
G01V 5/04
G01V 9/00

US Classification:

703 10, 703 2, 702 6, 702 7

Abstract:

Method for generating a three-dimensional resistivity data volume for a subsurface region from an initial resistivity model and measured electromagnetic field data from an electromagnetic survey of the region, where the initial resistivity model is preferably obtained by performing multiple ID inversions of the measured data []. The resulting resistivity depth profiles are then registered at proper 3D positions []. The 3D electromagnetic response is simulated [] assuming the resistivity structure is given by the initial resistivity model. The measured electromagnetic field data volume is scaled by the simulated results [] and the ratios are registered at proper 3D positions [] producing a ratio data volume []. A 3D resistivity volume is then generated by multiplying the initial resistivity volume by the ratio data volume (or some function of it), location-by location []. A related method emphasizes deeper resistive anomalies over masking effects of shallow anomalies.

US Patent:

8169222, May 1, 2012

Filed:

Apr 2, 2008

Appl. No.:

12/526611

Inventors:

Scott C. Hornbostel - Houston TX, US
Kenneth E. Green - Houston TX, US

Assignee:

ExxonMobil Upstream Research Company - Houston TX

International Classification:

G01V 3/12

US Classification:

324331, 324334, 324337, 324348

Abstract:

A method for designing a controlled-source electromagnetic survey that will discriminate between a defined deep marginal-interest reservoir () and specified false positive resistivity structures of concern (). A reservoir model and a false positive model are constructed for each false positive scenario. The resistivity of the false positive model may be tuned to give electromagnetic data similar enough to the reservoir model when forward modeled that any differences fall in the model null space. A null-space discriminating ratio (“NSDR”) is defined, for example as the peak normalized difference of the two related modeled electromagnetic field data sets. An area coverage display of NSDR values () allows determination of such additional data as may be needed to distinguish the false positive body, and a survey design is developed accordingly (). Reduction of the number of variables affecting the area coverage displays is a key feature of the method.

US Patent:

20110166840, Jul 7, 2011

Filed:

Aug 31, 2009

Appl. No.:

13/056041

Inventors:

Kenneth E. Green - Houston TX, US
Leslie A. Wahrmund - Kingwood TX, US
Oliver M. Burtz - London, GB
Dennis E. Willen - Houston TX, US
Rebecca L. Saltzer - Houston TX, US
Leonard J. Srnka - Bellaire TX, US

International Classification:

G06G 7/50
G06F 17/10

US Classification:

703 2

Abstract:

Systems and methods which provide electromagnetic subsurface mapping to derive information with respect to subsurface features whose sizes are near to or below the resolution of electromagnetic data characterizing the subsurface are shown. Embodiments operate to identify a region of interest () in a resistivity image generated () using electromagnetic data (). One or more scenarios may be identified for the areas of interest, wherein the various scenarios comprise representations of features whose sizes are near to or below the resolution of the electromagnetic data (). According to embodiments, the scenarios are evaluated (), such as using forward or inverse modeling, to determine each scenarios' fit to the available data and further to determine their geologic reasonableness (). Resulting scenarios may be utilized in a number of ways, such as to be substituted in a resistivity image for a corresponding region of anomalous resistivity for enhancing the resistivity image ().

US Patent:

20160047924, Feb 18, 2016

Filed:

Jul 15, 2015

Appl. No.:

14/800147

Inventors:

Christine Krohn - Houston TX, US
Partha S. Routh - Katy TX, US
John E. Anderson - Spring TX, US
Gboyega Ayeni - Humble TX, US
Kenneth E. Green - Houston TX, US

International Classification:

G01V 1/28
G06F 17/10

Abstract:

A method, including: obtaining an initial model of a subsurface property; simulating synthetic data from the initial model; obtaining recorded borehole seismic data, wherein the recorded borehole seismic data was obtained with a seismic source or receiver located in a well; and inverting, with a computer, the recorded borehole seismic data by full wavefield inversion, wherein the full wavefield inversion includes comparing the synthetic data to the recorded borehole seismic data, and computing a cost function, obtaining a gradient function from the cost function, wherein the gradient function is related to a change in the objective function with an incremental change in model parameters, using the initial model to compute an illumination function or a resolution function for seismic sources and receivers, and obtaining a conditioned gradient function by conditioning the gradient function with the illumination function or the resolution function.

Address:

6811 Ashland Frst Dr, Houston, TX 77088

VIN:

JTMZF31V595011061

Make:

TOYOTA

Model:

RAV4

Year:

2009

Address:

4011 Sablechase Dr, Houston, TX 77014

Phone:

(713)3060756

VIN:

1G1AL15F277142665

Make:

CHEVROLET

Model:

COBALT

Year:

2007