James Brown Hogan

US Patent:

6659174, Dec 9, 2003

Filed:

Feb 6, 2002

Appl. No.:

10/068688

Inventors:

James R. Hogan - Bartlesville OK

Assignee:

Schlumberger Technology Corp. - Sugar Land TX

International Classification:

E21B 4300

US Classification:

16625001, 166 66, 166 664, 340679, 3408545, 417 63

Abstract:

A component, such as an electric motor, for use in a subterranean environment. The component comprises an attached recording system to record the cumulative use time of the component. The recording system typically includes a timing circuit or other circuit to output data related to use of the component. This data is recorded by a recording device to maintain a cumulative total.

US Patent:

6704689, Mar 9, 2004

Filed:

Jan 20, 2000

Appl. No.:

09/488474

Inventors:

James R. Hogan - Bartlesville OK
Olegario S. Rivas - Bartlesville OK

Assignee:

Camco International, Inc. - Houston TX

International Classification:

G06F 1760

US Classification:

702184, 702182

Abstract:

A system and method for predicting a specific aspect, such as run life, of a component or system. The system utilizes a variety of complexity index values that are assigned to each component of the system. Each complexity index value is determined according to select physical parameters of the component. The summing of the complexity index values provides a system complexity index value that can be used to accurately estimate, for example, the run life of the system.

US Patent:

7801707, Sep 21, 2010

Filed:

Aug 2, 2006

Appl. No.:

11/461911

Inventors:

William J. Bailey - Danbury CT, US
Benoit Couet - Weston CT, US
James R. Hogan - Bartlesville OK, US
Iain S. Weir - Axebridge, GB

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G06F 7/60
G06F 17/10
G06G 7/58

US Classification:

703 2, 703 10

Abstract:

A statistical methodology is disclosed to provide time-to-event estimates for oilfield equipment. A method according to the present invention extracts unbiased information from equipment performance data and considers parameters interactions without recourse to data thinning. The analysis explicitly accounts for items of equipment that are still operational at the time of analysis. A method according to the present invention may also be utilized to apply survival analysis to any oilfield equipment components where time-to-event information has been recorded. The method of the present invention allows comparative reckoning between different components present in the system comprising several or many individual components and allows analysis of these components either individually or simultaneously, i. e. , in the presence of other components.

US Patent:

8374834, Feb 12, 2013

Filed:

Aug 20, 2010

Appl. No.:

12/859962

Inventors:

William J. Bailey - Danbury CT, US
Benoit Couet - Weston CT, US
James R. Hogan - Bartlesville OK, US
Iain S. Weir - Axbridge, GB

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G06G 7/48

US Classification:

703 6, 703 10, 340648, 3408546, 340604, 175 57, 175 61, 166265, 166357, 16625001, 166313, 310 87, 73705

Abstract:

A statistical methodology is disclosed to provide time-to-event estimates for oilfield equipment. A method according to the present invention extracts unbiased information from equipment performance data and considers parameters interactions without recourse to data thinning. The analysis explicitly accounts for items of equipment that are still operational at the time of analysis. A method according to the present invention may also be utilized to apply survival analysis to any oilfield equipment components where time-to-event information has been recorded. The method of the present invention allows comparative reckoning between different components present in the system comprising several or many individual components and allows analysis of these components either individually or simultaneously, i. e. , in the presence of other components.