Mark J Willis

Address:

3763 Tangley Rd, Houston, TX 77005

Phone:

7134320465

VIN:

WDDNG71XX7A061002

Make:

MERCEDES-BENZ

Model:

S-CLASS

Year:

2007

Address:

3763 Tangley Rd, Houston, TX 77005

Phone:

7134619045

VIN:

1GNFC16057J233852

Make:

CHEVROLET

Model:

SUBURBAN

Year:

2007

Address:

2502 Vaulx Ln, Nashville, TN 37204

VIN:

1HD1FC4137Y625199

Make:

N/A

Model:

N/A

Year:

2007

US Patent:

20130277139, Oct 24, 2013

Filed:

Apr 23, 2012

Appl. No.:

13/453776

Inventors:

Mark Elliott Willis - Katy TX, US
Erkan Ay - Katy TX, US
Norm Warpinski - Cypress TX, US
Tianrun Chen - Houston TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G01V 1/40

US Classification:

181106

Abstract:

The present disclosure provides embodiments seismic energy sources configured to generate enhanced shear wave energy in order to more accurately determine the distribution and orientation of fractures in subterranean formations. At least one seismic energy source includes an elongate rod having a first end and a second end, a detonator coupled to the first end, and a bull plug coupled to the second end. An explosive is helically-wrapped about the elongate rod continuously from the first end to the second end and configured to detonate such that a time-delayed detonation is achieved which induces increased shear wave energy in the surrounding formations.

US Patent:

20220214468, Jul 7, 2022

Filed:

Jun 11, 2019

Appl. No.:

17/608045

Inventors:

- Houston TX, US
Simon Shaw - Youngsville LA, US
Michel Joseph LeBlanc - Houston TX, US
Mark Elliott Willis - Katy TX, US
Xiang Wu - Singapore, SG

International Classification:

G01V 1/46
G01V 1/22
G01V 1/50
G01V 8/24
G01V 1/52

Abstract:

A wellbore system includes a logging unit having a retrievable logging cable coupled to a downhole tool within a wellbore and a depth correlation unit in the downhole tool that provides current depth data for the wellbore through the retrievable logging cable for recording of a current depth by the logging unit. The wellbore system also includes a distributed acoustic sensing unit that includes a seismic processing unit and a seismic profiling unit connected to a separate optical cable of the retrievable logging cable having distributed acoustic sensing channels, wherein an assignment of the distributed acoustic sensing channels along the separate optical cable is determined by an offset distance between the current depth of a formation reference region within the wellbore and a previous reference depth of the formation reference region within the wellbore. A distributed acoustic sensing method is also included.

US Patent:

20220196861, Jun 23, 2022

Filed:

Dec 23, 2020

Appl. No.:

17/133409

Inventors:

- Houston TX, US
Mark Elliott WILLIS - Katy TX, US

Assignee:

HALLIBURTON ENERGY SERVICES, INC. - Houston TX

International Classification:

G01V 1/28
G01V 1/36

Abstract:

The disclosed technology provides solutions for identifying noise in seismic profile data sets. In some aspects, a process of the disclosed technology includes steps for receiving wellbore data including seismic measurements, processing the wellbore data to generate a seismic input image including visual representations of the one or more seismic measurements, and processing the seismic input image to identify a noise region in the seismic input image. Systems and machine-readable media are also provided.

US Patent:

20230020858, Jan 19, 2023

Filed:

Sep 20, 2019

Appl. No.:

17/620269

Inventors:

- Houston TX, US
Henry Clifford Bland - Calgary, CA
Michel Joseph LeBlanc - Houston TX, US
Mark Elliott Willis - Katy TX, US
Xiang Wu - Singapore, SG

International Classification:

G01V 1/26
G01V 1/46
G01V 1/22
G01D 5/353

Abstract:

An active fiber stretcher assembly can be used for data acquisition systems. A time-break signal can be detected that coincides with a seismic event emitted from a seismic controller. A predetermined waveform can be generated in response to detecting the time-break signal. The predetermined waveform may be encoded onto a fiber optic cable using a fiber stretcher. A data acquisition system connected to the fiber optic cable may detect the predetermined waveform on the fiber optic cable and initiate acquisition operations including: receiving, during the seismic event, light signals returning from a portion of the fiber optic cable in a subterranean environment; determining one or more characteristics of the subterranean environment from the light signals; and storing the one or more characteristics.

US Patent:

20210405231, Dec 30, 2021

Filed:

May 23, 2019

Appl. No.:

16/649802

Inventors:

- Houston TX, US
Mark Elliott Willis - Katy TX, US
Andreas Ellmauthaler - Houston TX, US

International Classification:

G01V 1/22
G01V 1/42

Abstract:

Embodiments disclosed herein include components, devices, systems, and operations and functions for generating a seismic profile. An optical signal is generated in an optical signal medium disposed in proximity to a formation. A seismic source induces seismic signals within the formation. A backscatter response corresponding to the seismic signals from the optical signal medium is detected and quadrature modulated to generate a quadrature trace. A seismic response is generated by determining phase differences in the backscatter response based on the quadrature modulated backscatter response. Portions of the seismic response above or below a response threshold are removed to generate a threshold seismic response. The threshold seismic response is correlated with at least one of the seismic signals to generate a correlated seismic response.

US Patent:

20210405232, Dec 30, 2021

Filed:

May 24, 2019

Appl. No.:

16/650380

Inventors:

- Houston TX, US
Mark Elliott Willis - Katy TX, US
Andreas Ellmauthaler - Houston TX, US
Xiang Wu - Singapore, SG

International Classification:

G01V 1/22
G01V 1/42
G01V 1/30
E21B 17/20
E21B 43/16

Abstract:

Systems and methods relate to borehole seismic studies. Traditionally, borehole seismic studies are conducted using geophones. Seismic acquisition can be performed using fiber optic Distributed Acoustic Sensing (DAS). Because DAS measures dynamic relative displacement over a gauge length, which is different from particle velocity, DAS data can be converted into an equivalent geophone output response. Operations include converting DAS data into distributed velocity, and then, converting the velocity output into an equivalent geophone response. Various aspects include separating the data into interleaving subsets, integrating each subset along the spatial coordinates, selecting a window width over which the median of each subset will be calculated and subtracted from the data, performing a spatial average or low-pass filtering over contiguous values, performing a time-domain low-pass filtering, and performing the velocity-to-geophone conversion operation.

US Patent:

20210396898, Dec 23, 2021

Filed:

Jun 13, 2019

Appl. No.:

16/650841

Inventors:

- Houston TX, US
Kary Darnell Green - Cypress TX, US
Jose David Carrillo Rangel - Katy TX, US
Mark Elliott Willis - Katy TX, US

International Classification:

G01V 1/28
G01V 1/50

Abstract:

A seismic source is positioned at the surface of a geologic formation and a plurality of seismic receivers is positioned in a wellbore of the geologic formation. Seismic wavefield data is obtained based on the seismic source outputting seismic energy into the wellbore and the plurality of seismic receivers receiving the seismic energy. A velocity profile is determined along the wellbore based on the seismic wavefield data. P and S wave data in a downgoing direction is separated from the seismic wavefield data based on an inversion and the velocity profile. The P and S wave data in the downgoing direction is adaptively subtracted from the seismic wavefield data to form residual wavefield data. The P and S wave data in a upgoing direction is separated from the residual wavefield data based on the inversion and an updated velocity profile. The P and S wave data in the upgoing and downgoing direction is output.

US Patent:

20210208295, Jul 8, 2021

Filed:

Sep 27, 2016

Appl. No.:

16/074642

Inventors:

Mark Elliott Willis - Katy TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G01V 1/30
G01V 1/28
G01V 1/40

Abstract:

A method to process vertical seismic profile (VSP) data includes receiving VSP data, migrating the VSP data output using an initial velocity model to produce migrated depth values associated with the respective receivers, sorting and collecting the migrated depth values corresponding to each receiver to produce a migrated common receiver gather (CRG) associated with each receiver, stacking the migrated depth values of the CRGs corresponding to respective fixed lateral positions in an image volume to produce a common image gather (CIG) associated with each lateral position, and generating a semblance panel having the stacked depth migration values plotted as contours on a first axis for velocity ratio (vr), which is based on migration velocity and true velocity) and a second axis for true depth (Zt). The method further includes updating the initial velocity model based on a plurality of data points selected from the semblance panel to provide an updated velocity model.