Syed A Hamid

US Patent:

6806193, Oct 19, 2004

Filed:

Jan 15, 2003

Appl. No.:

10/342547

Inventors:

Vincent C. Korthuis - Corvallis OR
Mona Eissa - Plano TX
Yaojian Leng - Plano TX
Syed Hamid - Garland TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01L 21304

US Classification:

438692, 438693, 451 41, 451 56, 216 88, 216 89

Abstract:

A method for preconditioning a CMP polishing pad and retaining ring prior to semiconductor wafer polishing. In the method of the present invention, the retaining ring is lowered to contact the rotating polishing pad, and a cleaning chemistry of ammonium citrate is applied to the pad. In an alternative embodiment, the cleaning chemistry comprises an aqueous solution of ammonium citrate, and a surfactant and/or copper inhibitor. After a sustained preconditioning period in which the retaining ring and polishing pad are polished, the pad is rinsed, lowering particulate buildup on the pad between wafer polishing steps, and bringing defect levels into an equilibrium state prior to each wafer polishing step.

US Patent:

6953094, Oct 11, 2005

Filed:

Sep 24, 2002

Appl. No.:

10/253061

Inventors:

Colby Munro Ross - Carrollton TX, US
Robert L. Thurman - Frisco TX, US
Syed Hamid - Dallas TX, US
Ronald W. McGregor - Carrollton TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B023/00
E21B047/00

US Classification:

166381, 166 50, 166 651, 166313

Abstract:

A subterranean well completion has a tubular structure in which a remote controlled robot is permanently disposed. The robot is self-propelled, programmable, receives instructions from and communicates data to the surface, and is adapted to receive power from a downhole source and perform a variety of well tasks such as, for example, positioning valves and other well tools and sensing the values of predetermined downhole parameters and relaying the sensed information to the surface. The robot, which is operable without physical intervention through the tubular structure to the robot, propels itself to a location in the tubular structure at which a desired well task is to be performed, performs the task and then parks itself in the tubular structure until another well task is to be performed by the robot.

US Patent:

7280987, Oct 9, 2007

Filed:

Mar 26, 2004

Appl. No.:

10/811403

Inventors:

Dingding Chen - Plano TX, US
Syed Hamid - Dallas TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G06E 1/00

US Classification:

706 15, 706 19, 702 6

Abstract:

A system and method for generating a neural network ensemble. Conventional algorithms are used to train a number of neural networks having error diversity, for example by having a different number of hidden nodes in each network. A genetic algorithm having a multi-objective fitness function is used to select one or more ensembles. The fitness function includes a negative error correlation objective to insure diversity among the ensemble members. A genetic algorithm may be used to select weighting factors for the multi-objective function. In one application, a trained model may be used to produce synthetic open hole logs in response to inputs of cased hole log data.

US Patent:

7444861, Nov 4, 2008

Filed:

Nov 22, 2005

Appl. No.:

11/284863

Inventors:

Orlando De Jesus - Frisco TX, US
Richard Mineo - Richardson TX, US
Jerry Clinton Foster - Lewisville TX, US
Syed Hamid - Dallas TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G01L 5/00

US Classification:

7315259

Abstract:

A real-time line management system and associated methods. A line management system for use in conjunction with an operation in a subterranean well includes a line installed in the well during the operation, and a computing device which indicates a used life of the line during the operation. A method of managing a line used in an operation in a subterranean well includes the steps of: installing the line in the well during the operation; and determining a used life of the line while the line is installed in the well. A method of managing a line used in multiple operations in one or more subterranean wells includes the steps of: estimating conditions which will be experienced by the line during a future operation; and predicting before the future operation what a used life of the line will be after the line is used in the future operation.

US Patent:

7462274, Dec 9, 2008

Filed:

Jul 1, 2004

Appl. No.:

10/883368

Inventors:

Syed Hamid - Dallas TX, US
Beegamudre N. Murali - Houston TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

C02F 1/461

US Classification:

205687, 205688, 204563, 204570

Abstract:

A separating system for separating a fluid mixture incorporates a smart surface having reversibly switchable properties. A voltage is selectively applied to the smart surface to attract or repel constituents of a fluid mixture, such as oil and water produced from a hydrocarbon well. The smart surface can be used in a conditioner to increase droplet size prior to entering a conventional separator, or the smart surface and other elements of the invention can be incorporated into an otherwise conventional separator to enhance separation. In a related aspect, a concentration sensor incorporating smart surfaces senses concentration of the fluid mixture's constituents.

US Patent:

7613665, Nov 3, 2009

Filed:

Jun 24, 2005

Appl. No.:

11/165892

Inventors:

Dingding Chen - Plano TX, US
John A. Quirein - Georgetown TX, US
Syed Hamid - Dallas TX, US
Jeffery L. Grable - Houston TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G06E 1/00
G06E 3/00

US Classification:

706 16, 706 20

Abstract:

Methods of creating and using robust neural network ensembles are disclosed. Some embodiments take the form of computer-based methods that comprise receiving a set of available inputs; receiving training data; training at least one neural network for each of at least two different subsets of the set of available inputs; and providing at least two trained neural networks having different subsets of the available inputs as components of a neural network ensemble configured to transform the available inputs into at least one output. The neural network ensemble may be applied as a log synthesis method that comprises: receiving a set of downhole logs; applying a first subset of downhole logs to a first neural network to obtain an estimated log; applying a second, different subset of the downhole logs to a second neural network to obtain an estimated log; and combining the estimated logs to obtain a synthetic log.

US Patent:

7775100, Aug 17, 2010

Filed:

Sep 26, 2008

Appl. No.:

12/239290

Inventors:

Orlando De Jesus - Frisco TX, US
Richard Mineo - Richardson TX, US
Jerry C. Foster - Lewisville TX, US
Syed Hamid - Dallas TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

G01L 5/00

US Classification:

7315259

Abstract:

A real-time line management system and associated methods. A line management system for use in conjunction with an operation in a subterranean well includes a line installed in the well during the operation, and a computing device which indicates a used life of the line during the operation. A method of managing a line used in an operation in a subterranean well includes the steps of: installing the line in the well during the operation; and determining a used life of the line while the line is installed in the well. A method of managing a line used in multiple operations in one or more subterranean wells includes the steps of: estimating conditions which will be experienced by the line during a future operation; and predicting before the future operation what a used life of the line will be after the line is used in the future operation.

US Patent:

7823635, Nov 2, 2010

Filed:

Aug 23, 2004

Appl. No.:

10/924161

Inventors:

Adam Davis Wright - Dallas TX, US
Roger Lynn Schultz - Aubrey TX, US
Syed Hamid - Dallas TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 43/34
E21B 43/38

US Classification:

1661055, 166228

Abstract:

A downhole oil and water separator for an oil well includes a water-selective membrane disposed in a production flowpath of the well. The water-selective membrane is operable to selectively pass water from the production flowpath to a disposal zone to increase the concentration of oil in the production flowpath at the surface.