Daniel N Alvarado

US Patent:

20130048384, Feb 28, 2013

Filed:

May 24, 2012

Appl. No.:

13/480080

Inventors:

Brian P. Jarvis - Bristol, GB
Nigel Wilcox - Bristol, GB
Brian Williams - Bristol, GB
Lance Underwood - Morrison CO, US
William Murray - Tomball TX, US
Peter Thomas Cariveau - Spring Valley TX, US
Geoffrey Downton - Stonehouse, GB
Lawrence Lee - Houston TX, US
Shunetsu Onodera - Cheltenham, GB
Daniel Alvarado - Houston TX, US
Maxim Pushkarev - Cheltenham, GB
Gokturk Tunc - Houston TX, US
Andrei Plop - Houston TX, US
Warren Askew - Houston TX, US

Assignee:

SMITH INTERNATIONAL, INC. - Houston TX

International Classification:

E21B 4/02
E21B 7/08
F03C 2/08
E21B 7/00

US Classification:

175 61, 175 73, 175 57, 175107, 418 48

Abstract:

A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator.

US Patent:

20170145748, May 25, 2017

Filed:

Nov 3, 2016

Appl. No.:

15/342924

Inventors:

- Houston TX, US
Lance D. Underwood - Morrison CO, US
Peter Thomas Cariveau - Spring TX, US
Brian P. Jarvis - Bristol, GB
Nigel Wilcox - Bristol, GB
Brian Williams - Bristol, GB
Geoffrey Downton - Gloucestershire, GB
Lawrence Lee - Houston TX, US
Daniel Alvarado - Fort Worth TX, US
Maxim Pushkarev - Katy TX, US
Gokturk Tunc - Cambridge, GB
Andrei Plop - Dubai, AE

International Classification:

E21B 4/02
F01C 21/08
F01C 21/10
F01C 1/10

Abstract:

Techniques relate to a moving cavity motor or pump, such as a mud motor, including a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator, where the apparatus for constraining is operable with the rotor catch. The motor may include a top sub, power section having a progressive cavity motor with a stator and rotor, a rotor catch, and an apparatus between a proximal and distal end of the rotor catch shaft. The apparatus may constrain the radial and/or tangential movement of the rotor catch shaft and the rotor.

US Patent:

20170074100, Mar 16, 2017

Filed:

Oct 31, 2016

Appl. No.:

15/339670

Inventors:

- Houston TX, US
Nigel Wilcox - Bristol, GB
Brian Williams - Bristol, GB
Lance Underwood - Morrison CO, US
William Murray - Tomball TX, US
Peter Thomas Cariveau - Houston TX, US
Geoffrey Downton - Cambridge, GB
Lawrence Lee - Manvel TX, US
Onodera Shun - Katy TX, US
Daniel Alvarado - Fort Worth TX, US
Maxim Pushkarev - Katy TX, US
Gokturk Tunc - Houston TX, US
Andrei Plop - Houston TX, US
Warren Askew - Houston TX, US

International Classification:

F01C 19/06
F01C 21/08
F01C 21/10
F01C 1/10

Abstract:

Techniques involve a motor assembly including a rotor and a stator. The stator includes a contact surface for contacting an outer surface of the rotor. The contact surface includes a rigid material. The motor assembly also includes at least one constraint disposed along a length of the motor assembly, where the constraint constrains a radial and/or tangential movement of the rotor relative to the stator. The at least one constraint may be disposed at one or more proximate ends of the motor assembly, and/or along the length of the motor assembly. The contact surface of the stator may have a profile including peaks and valleys, and in some embodiments, the contact surface may be treated to reduce friction and/or wear.

US Patent:

20140332275, Nov 13, 2014

Filed:

Nov 16, 2012

Appl. No.:

14/358944

Inventors:

- Houston TX, US
Lance D. Underwood - Morrison CO, US
Peter Thomas Cariveau - Spring TX, US
Brian P. Jarvis - Bristol, GB
Nigel Wilcox - Bristol, GB
Brian Williams - Bristol, GB
Geoffrey Downton - Gloucestershire, GB
Lawrence Lee - Houston TX, US
Daniel Alvarado - Fort Worth TX, US
Maxim Pushkarev - Katy TX, US
Gokturk Tunc - Cambridge, GB
Andrei Plop - Dubai, AE

International Classification:

E21B 4/02

US Classification:

175 57, 175107

Abstract:

A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator, where the apparatus for constraining is operable with the rotor catch.