Richard S Polizzotti from 3800 Washington Rd APT 407, West Palm Beach, FL 33405, age 81

Us Patents

Hydrothermal Drilling Method And System
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US Patent:

6742603, Jun 1, 2004
Filed:

Jun 7, 2002
Appl. No.:

10/164872
Inventors:

Richard S. Polizzotti - Milford NJ
Lee Hirsch - Evanton IL
Amy B. Herhold - Short Hills NJ
Mehmet D. Ertas - Hillsborough NJ
Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ
International Classification:

E21B 718
US Classification:

175 17, 175 65, 299 17
Abstract:

A method and system is disclosed for extending the depth of a subterranean borehole that uses heated aqueous fluid to dissolve rock of the subterranean formation. The heated aqueous fluid comprises water and hydroxides of Group I elements of The Periodic Table of Elements and mixtures thereof. The drilling system comprises means for delivering aqueous fluid and heating the aqueous fluid prior to contacting rock of a subsurface formation.

Method And Apparatus For Managing Variable Density Drilling Mud
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US Patent:

7677332, Mar 16, 2010
Filed:

Feb 13, 2007
Appl. No.:

12/160999
Inventors:

Paul Matthew Spiecker - Manvel TX, US
Pavlin B. Entchev - Houston TX, US
Ramesh Gupta - Berkley Heights NJ, US
Richard Polizzotti - Milford NJ, US
Barbara Carstensen - Annandale NJ, US
Dennis G. Peiffer - Annandale NJ, US
Norman Pokutylowicz - Houston TX, US
Assignee:

ExxonMobil Upstream Research Company - Houston TX
International Classification:

E21B 21/01
E21B 21/06
E21B 21/08
US Classification:

175 40, 175 48, 175 65, 175 66, 175206, 175207, 175324, 2102571, 210258, 210787, 210804, 507906
Abstract:

A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas an configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations.

Method For Fabricating Compressible Objects For A Variable Density Drilling Mud
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US Patent:

7972555, Jul 5, 2011
Filed:

Oct 16, 2008
Appl. No.:

12/252936
Inventors:

Richard S. Polizzotti - Milford NJ, US
Dennis George Peiffer - Annandale NJ, US
Ramesh Gupta - Berkeley Heights NJ, US
Norman M. Pokutylowicz - Houston TX, US
Barbara Carstensen - Annandale NJ, US
Michael J. Luton - Basking Ridge NJ, US
Paul Matthew Spiecker - Manvel TX, US
Assignee:

ExxonMobil Upstream Research Company - Houston TX
International Classification:

B29D 22/00
E21B 43/267
B32B 5/16
C09K 8/68
US Classification:

264572, 264574, 1662801, 507209, 507270, 4284022
Abstract:

Methods for fabricating compressible object are described. These compressible objects may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The method includes selecting an architecture for a compressible object; selecting a wall material for the compressible object; and fabricating the compressible object, wherein the compressible object has a shell that encloses an interior region, and has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object.

System For Managing Variable Density Drilling Mud
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US Patent:

7980329, Jul 19, 2011
Filed:

Jan 22, 2010
Appl. No.:

12/691783
Inventors:

Paul Matthew Spiecker - Manvel TX, US
Pavlin B. Entchev - Houston TX, US
Ramesh Gupta - Berkley Heights NJ, US
Richard Polizzotti - Milford NJ, US
Barbara Carstensen - Annandale NJ, US
Dennis G. Peiffer - Annandale NJ, US
Norman Pokutylowicz - Houston TX, US
Assignee:

ExxonMobil Upstream Research Company - Houston TX
International Classification:

E21B 21/01
E21B 21/06
US Classification:

175206, 175 66, 175207
Abstract:

A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe, while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas and configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations.

Compressible Objects Combined With A Drilling Fluid To Form A Variable Density Drilling Mud
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US Patent:

8076269, Dec 13, 2011
Filed:

Oct 16, 2008
Appl. No.:

12/252931
Inventors:

Richard S. Polizzotti - Milford NJ, US
Dennis George Peiffer - Annandale NJ, US
Ramesh Gupta - Berkeley Heights NJ, US
Norman M. Pokutylowicz - Houston TX, US
Barbara Carstensen - Annandale NJ, US
Michael J. Luton - Basking Ridge NJ, US
Paul Matthew Spiecker - Manvel TX, US
Assignee:

ExxonMobil Upstream Research Company - Houston TX
International Classification:

C09K 8/03
US Classification:

507110, 428402
Abstract:

A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The shell experiences less strain when the external pressure is about equal to the internal pressure than when the external pressure is above or below a predetermined compression interval of the compressible object includes a shell that encloses an interior region.

Compressible Objects Having A Predetermined Internal Pressure Combined With A Drilling Fluid To Form A Variable Density Drilling Mud
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US Patent:

8088716, Jan 3, 2012
Filed:

Oct 16, 2008
Appl. No.:

12/252927
Inventors:

Richard S. Polizzotti - Milford NJ, US
Dennis George Peiffer - Annandale NJ, US
Ramesh Gupta - Berkeley Heights NJ, US
Norman M. Pokutylowicz - Houston TX, US
Barbara Carstensen - Annandale NJ, US
Michael J. Luton - Bedminster NJ, US
Paul Matthew Spiecker - Manvel TX, US
Assignee:

ExxonMobil Upstream Research Company - Houston TX
International Classification:

C09K 8/03
US Classification:

507110, 428402
Abstract:

A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. Also, the compressible object has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object and wherein the shell being designed to reduce localized strains of the compressible object during expansion and compression of the compressible object.

Compressible Objects Having Partial Foam Interiors Combined With A Drilling Fluid To Form A Variable Density Drilling Mud
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US Patent:

8088717, Jan 3, 2012
Filed:

Oct 16, 2008
Appl. No.:

12/252935
Inventors:

Richard S. Polizzotti - Milford NJ, US
Dennis George Peiffer - Annandale NJ, US
Ramesh Gupta - Berkeley Heights NJ, US
Norman M. Pokutylowicz - Houston TX, US
Barbara Carstensen - Annandale NJ, US
Michael J. Luton - Basking Ridge NJ, US
Paul Matthew Spiecker - Manvel TX, US
Assignee:

ExxonMobil Upstream Research Company - Houston TX
International Classification:

C09K 8/03
US Classification:

507117, 507110, 428402
Abstract:

A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The interior region of the shell is at least partially filled with a foam. The internal pressure of the compressible object may be greater than about 200 psi (pounds per square inch) at atmospheric pressure, greater than 500 psi at atmospheric pressure, greater than 1500 psi at atmospheric pressure or more preferably greater than 2000 psi at atmospheric pressure.

Variable Density Drilling Mud
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US Patent:

20070027036, Feb 1, 2007
Filed:

May 25, 2006
Appl. No.:

11/441698
Inventors:

Richard Polizzotti - Milford NJ, US
Mehmet Ertas - Hillsborough NJ, US
Norman Pokutylowicz - Hillsborough NJ, US
Scott Milner - Somerville NJ, US
James Rigby - Kingwood TX, US
John Montgomery - Houston TX, US
Pavlin Entchev - Houston TX, US
Stuart Keller - Houston TX, US
Vishwas Gupta - Stafford TX, US
William Sisak - Houston TX, US
International Classification:

C09K 8/02
US Classification:

507143000
Abstract:

One embodiment of the invention is a variable density drilling mud comprising compressible particulate material in the drilling mud wherein the density of the drilling mud changes in response to pressure changes at depth. A second embodiment is a method for varying drilling mud density. The method comprises estimating the pore pressure and fracture gradient, and choosing a drilling mud with compressible materials wherein the effective mud weight of the drilling mud remains between the pore pressure and the fracture gradient in at least one interval of the wellbore. A third embodiment is an apparatus for drilling a wellbore.