David Leon Aldridge

US Patent:

20200248067, Aug 6, 2020

Filed:

Jan 21, 2020

Appl. No.:

16/747650

Inventors:

Chad CANNAN - Lancaster NY, US
Lewis BARTEL - Albuquerque MN, US
Terrence PALISCH - Richardson TX, US
David ALDRIDGE - Albuquerque NM, US

International Classification:

C09K 8/80
E21B 43/267
E21B 43/26
C23C 14/35
C23C 14/06
E21B 47/00
E21B 43/25
E21B 47/09

Abstract:

Electrically conductive proppants and methods for detecting, locating, and characterizing same are provided. The electrically conductive proppant can include a substantially uniform coating of an electrically conductive material having a thickness of at least 500 nm. The method can include injecting a hydraulic fluid into a wellbore extending into a subterranean formation at a rate and pressure sufficient to open a fracture therein, injecting into the fracture a fluid containing the electrically conductive proppant, electrically energizing the earth at or near the fracture, and measuring three dimensional (x, y, and z) components of electric and magnetic field responses at a surface of the earth or in an adjacent wellbore.

US Patent:

20190330520, Oct 31, 2019

Filed:

Feb 23, 2015

Appl. No.:

15/330962

Inventors:

- Houston TX, US
- Albuquerque NM, US
David Aldridge - Albuquerque NM, US
Todd Roper - Katy TX, US

International Classification:

C09K 8/80
E21B 43/26
C23C 14/35
C23C 14/06
E21B 43/25
E21B 43/267
E21B 47/00
E21B 47/09

Abstract:

Electrically conductive sintered, substantially round and spherical particles and methods for producing such electrically conductive sintered, substantially round and spherical particles from an alumina-containing raw material. Methods for using such electrically conductive sintered, substantially round and spherical particles in hydraulic fracturing operations.

US Patent:

20190249536, Aug 15, 2019

Filed:

Apr 22, 2019

Appl. No.:

16/391180

Inventors:

- Houston TX, US
Lewis Bartel - Albuquerque NM, US
Terry Palisch - Richardson TX, US
David Aldridge - Albuquerque NM, US
Todd Roper - Katy TX, US
Steve Savoy - Austin TX, US
Daniel R. Mitchell - Austin TX, US

International Classification:

E21B 43/267

Abstract:

Methods and systems for determining subterranean fracture closure are disclosed herein. The methods can include electrically energizing a casing of a wellbore that extends from a surface of the earth into a subterranean formation having a fracture that is at least partially filled with an electrically conductive proppant and measuring a first electric field response at the surface or in an adjacent wellbore at a first time interval to provide a first field measurement. The methods can also include measuring a second electric field response at the surface or in the adjacent wellbore at a second time interval to provide a second field measurement and determining an increase in closure pressure on the electrically conductive proppant from a difference between the first and second field measurements.

US Patent:

20160069174, Mar 10, 2016

Filed:

Nov 16, 2015

Appl. No.:

14/942304

Inventors:

- Houston TX, US
Lewis Bartel - Albuquerque NM, US
Terry Palisch - Richardson TX, US
David Aldridge - Albuquerque NM, US
Todd Roper - Katy TX, US
Steve Savoy - Austin TX, US
Daniel R. Mitchell - Austin TX, US

International Classification:

E21B 43/267

Abstract:

Methods and systems for determining subterranean fracture closure are disclosed herein. The methods can include electrically energizing a casing of a wellbore that extends from a surface of the earth into a subterranean formation having a fracture that is at least partially filled with an electrically conductive proppant and measuring a first electric field response at the surface or in an adjacent wellbore at a first time interval to provide a first field measurement. The methods can also include measuring a second electric field response at the surface or in the adjacent wellbore at a second time interval to provide a second field measurement and determining an increase in closure pressure on the electrically conductive proppant from a difference between the first and second field measurements.

US Patent:

20150184065, Jul 2, 2015

Filed:

Jan 9, 2015

Appl. No.:

14/593447

Inventors:

- Houston TX, US
- Albuquerque NM, US
Terrence Palisch - Richardson TX, US
David Aldridge - Albuquerque NM, US

International Classification:

C09K 8/80
C23C 14/35
C23C 14/06
E21B 43/26
E21B 47/09

Abstract:

Electrically conductive proppants and methods for detecting, locating, and characterizing same are provided. The electrically conductive proppant can include a substantially uniform coating of an electrically conductive material having a thickness of at least 500 nm. The method can include injecting a hydraulic fluid into a wellbore extending into a subterranean formation at a rate and pressure sufficient to open a fracture therein, injecting into the fracture a fluid containing the electrically conductive proppant, electrically energizing the earth at or near the fracture, and measuring three dimensional (x, y, and z) components of electric and magnetic field responses at a surface of the earth or in an adjacent wellbore.

US Patent:

20140190686, Jul 10, 2014

Filed:

Jan 3, 2014

Appl. No.:

14/147372

Inventors:

- Albuquerque NM, US
- Houston TX, US
Terry Palisch - Richardson TX, US
David Aldridge - Albuquerque NM, US

International Classification:

E21B 43/25
E21B 47/00

US Classification:

16625001, 1662802

Abstract:

Electrically conductive sintered, substantially round and spherical particles and methods for producing such electrically conductive sintered, substantially round and spherical particles from an alumina-containing raw material. Methods for using such electrically conductive sintered, substantially round and spherical particles in hydraulic fracturing operations.