Ronald Lloyd Spencer

US Patent:

20110267070, Nov 3, 2011

Filed:

Apr 26, 2011

Appl. No.:

13/094178

Inventors:

Ronald Spencer - Houston TX, US
Kirtikumar Patel - Fresno TX, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - SUGAR LANE TX

International Classification:

G01R 31/02

US Classification:

324509

Abstract:

A ground fault detection circuit for detecting ground faults in electrical subsea conductor lines including a first electrical conductor line, a second electrical conductor line, a first ground fault detection line, and a second ground fault detection line. The ground fault detection circuit further includes a first resistor operatively connected to a voltage source and the first ground fault detection line, a second resistor operatively connected to the voltage source and the second ground fault detection line, and a voltage detection device configured to detect the voltage at an output end of the first resistor to determine the presence of a ground fault in at least one of the first and second conductor lines.

US Patent:

20110308807, Dec 22, 2011

Filed:

Jun 16, 2011

Appl. No.:

13/162352

Inventors:

Ronald Spencer - Houston TX, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - SUGAR LAND TX

International Classification:

E21B 34/04

US Classification:

166335

Abstract:

A method for controlling a subsea valve assembly includes connecting a subsea riser between a wellhead and a surface vessel. An in-riser control unit is attached to a wired pipe string and disposed within the subsea riser, resulting in the in-riser control unit being deployed in-riser. The wired pipe string is connected to a surface control unit and a communication signal is transmitted through the wired pipe string between the surface control unit and the in-riser control unit to control the subsea valve assembly.

US Patent:

20130153242, Jun 20, 2013

Filed:

Oct 8, 2012

Appl. No.:

13/647259

Inventors:

Kirk W. Flight - Spring TX, US
Matthew Niemeyer - League City TX, US
Ronald James Spencer - Houston TX, US
John Yarnold - League City TX, US
Jeffrey Marabella - Friendswood TX, US
Gary Rytlewski - League City TX, US

International Classification:

E21B 43/01
E21B 34/04
E21B 17/01

US Classification:

166363, 166367

Abstract:

In-riser power generation devices and methods are utilized to generate power subsea to operate subsea devices of a subsea well system. A turbine power generator is located in fluid communication with a subsea fluid flow path of a subsea well system and the turbine power generator is operationally connected to a subsea power device.

US Patent:

20160341014, Nov 24, 2016

Filed:

Aug 1, 2016

Appl. No.:

15/225497

Inventors:

- Sugar Land TX, US
Matthew Niemeyer - League City TX, US
Ronald James Spencer - Houston TX, US
John Yarnold - League City TX, US
Jeffrey Marabella - Friendswood TX, US
Gary Rytlewski - League City TX, US

International Classification:

E21B 41/00
E21B 33/064
F03B 3/04
E21B 34/04
F03B 3/12
F03B 3/18
E21B 17/01
E21B 33/035

Abstract:

In-riser power generation devices and methods are utilized to generate power subsea to operate subsea devices of a subsea well system. A turbine power generator is located in fluid communication with a subsea fluid flow path of a subsea well system and the turbine power generator is operationally connected to a subsea power device.