Peter L Rasmussen

US Patent:

7526926, May 5, 2009

Filed:

Sep 20, 2004

Appl. No.:

10/569785

Inventors:

Peter C. Rasmussen - Conroe TX, US
Stephen Wright - Tokyo, JP
John D. Walter - Longview TX, US

Assignee:

ExxonMobil Upstream Research Company - Houston TX

International Classification:

F25J 3/00
F25J 1/00
F25B 1/00
F25B 49/00
F01D 15/10
F02C 6/00
F01K 25/02
F02C 1/04

US Classification:

62619, 622281, 62611, 290 52, 60783

Abstract:

A drive system for a refrigeration compressor such as is used in a natural gas liquefaction plant, allowing the desired compressor speed and maximum turbine efficiency to be maintained throughout varying ambient temperature conditions. A gas turbine is used with an electric starter motor with drive-through capability located on a common drive shaft between the turbine and the compressor. A variable frequency drive (VFD) is connected between the electrical power grid and the electric motor for smooth startups, but also to allow excess turbine mechanical power to be converted to electrical power by the motor operating as a generator, and delivered to the grid at the grid frequency. Pulse width modulation technology may be used to reduce harmonic distortion in the VFD's output. The starter motor also functions as a helper motor when the turbine output is insufficient to drive the compressor at the rotational speed needed to meet throughput requirements.

US Patent:

8540020, Sep 24, 2013

Filed:

Apr 21, 2010

Appl. No.:

12/764624

Inventors:

Matthew T. Stone - Rosharon TX, US
Ganesh Ghurye - Pearland TX, US
Matthew T Shanley - Bellaire TX, US
Peter Rasmussen - Conroe TX, US
Xianghui Huang - Pearland TX, US
Robert D. Kaminsky - Houston TX, US

Assignee:

ExxonMobil Upstream Research Company - Houston TX

International Classification:

E21B 36/04

US Classification:

166248, 166 60, 16625015, 1662721

Abstract:

One or more methods, systems and computer readable mediums are utilized to provide treatment of a subterranean formation that contains solid organic matter, such as oil shale, tar sands, and/or coal formation. The treatment of the formation includes heating a treatment interval within the subterranean formation with one or more electrical in situ heaters. Available power, or other production resources, for the electrical heaters are determined at regular, predetermined intervals. Heating rates of the one or more electrical heaters are selectively controlled based on the determined available power at each regular, predetermined interval and based on an optimization model that outputs optimal heating rates for each of the electrical heaters at the determined available power.

US Patent:

20080034789, Feb 14, 2008

Filed:

Oct 19, 2005

Appl. No.:

11/664038

Inventors:

Eleanor Fieler - Humble TX, US
P. Northrop - Spring TX, US
Peter Rasmussen - Conroe TX, US
Edward Grave - Spring TX, US

International Classification:

F25J 3/00

US Classification:

062623000, 062620000, 062631000

Abstract:

A method for hydrocarbon processing is provided. In one or more embodiments, the method includes splitting a hydrocarbon stream comprising natural gas and acid gas into a first stream and a second stream. Alternatively, the first stream and second stream may be provided from other sources. The first stream is processed to remove a portion of the acid gas therefrom, thereby producing a third stream comprising the acid gas removed from the first stream and a fourth stream comprising less than 100 ppm of sulfur-containing compounds. The second stream is combined with the third stream to provide a combined stream, which is compressed and reinjected into a subterranean reservoir.

US Patent:

20100212493, Aug 26, 2010

Filed:

Oct 14, 2008

Appl. No.:

12/680864

Inventors:

Peter C. Rasmussen - Conroe TX, US
Paul L. Tanaka - Sugar Land TX, US
Bruce T. Kelley - Kingwood TX, US
Stanley O. Uptigrove - The Woodlands TX, US
Harry W. Deckman - Clinton NJ, US

International Classification:

B01D 53/02
B01D 53/047
B01D 53/22
B01D 53/14
B01D 53/48
B01D 53/62
B01D 53/46

US Classification:

95 45, 95148, 95136, 95137, 95139, 95119, 95 96, 95115, 95 92, 96143, 96146

Abstract:

The present application is directed to a method and system for preparing gaseous utility streams from gaseous process streams, nitrogen process streams, and other types of streams. The methods and systems may include at least one swing adsorption process including pressure swing adsorption, temperature swing adsorption, and rapid-cycle adsorption processes to treat gaseous streams for use in dry gas seals of rotating equipment such as compressors, turbines and pumps and for other utilities. The systems and processes of the present disclosure are further applicable to high pressure gaseous streams, for example, up to about 600 bar.

US Patent:

20110000221, Jan 6, 2011

Filed:

Mar 25, 2009

Appl. No.:

12/919702

Inventors:

Moses Minta - Missouri City TX, US
Franklin F. Mittricker - Jamul CA, US
Peter Rasmussen - Conroe TX, US
Loren K. Starcher - Sugar Land TX, US
Chad C. Rasmussen - Houston TX, US
James T. Wilkins - Houston TX, US
Richard W. Meidel Jr. - The Woodlands TX, US

International Classification:

F02C 6/00
F02C 7/22

US Classification:

60783, 60722, 60784

Abstract:

Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes integrated pressure maintenance and miscible flood systems with low emission power generation. An alternative system provides for low emission power generation, carbon sequestration, enhanced oil recovery (EOR), or carbon dioxide sales using a hot gas expander and external combustor. Another alternative system provides for low emission power generation using a gas power turbine to compress air in the inlet compressor and generate power using hot carbon dioxide laden gas in the expander. Other efficiencies may be gained by incorporating heat cross-exchange, a desalination plant, co-generation, and other features.

US Patent:

20110209786, Sep 1, 2011

Filed:

Aug 19, 2009

Appl. No.:

13/122336

Inventors:

Peter C. Rasmussen - Conroe TX, US
Bruce T. Kelley - Kingwood TX, US
Stanley O. Uptigrove - The Woodlands TX, US

International Classification:

F17D 3/00

US Classification:

13756501

Abstract:

The present invention discloses apparatuses, systems, and methods for utilizing oil-free gas in a gas processing system. In some embodiments, an oil-free or “dry” gas is provided by a gas source to an oil-free compressor, such as a dry seal compressor, which charges a receiver vessel or vessels, which then provides the oil-free gas to at least one piece of processing equipment, such as an injection compressor or compressors for use in EOR, carbon sequestration, sour gas injection, or other gas handling operations. The methods and systems may include a controller for charging the receiver vessel when the pressure in the vessel decreases below a low pressure threshold and reducing the charging flow rate when the pressure in the vessel meets or exceeds a high pressure threshold in the vessel, thereby maintaining an operational pressure in the vessel.

US Patent:

20120036890, Feb 16, 2012

Filed:

Mar 8, 2010

Appl. No.:

13/264345

Inventors:

Edward L Kimble - Sugar Land TX, US
Peter C Rasmussen - Conroe TX, US

Assignee:

Exxonmobil Upstream Research Company - Houston TX

International Classification:

F25J 3/00

US Classification:

62620, 62927

Abstract:

Methods and systems for removing nitrogen from a natural gas feed stream. The systems and methods generally include a heat exchange unit, a separation unit, and a liquid methane pump unit, where the separation unit produces a liquid methane bottoms stream and a gaseous overhead stream enriched in nitrogen and the liquid methane pump unit compresses the liquid methane bottoms stream and then pumps the stream through the heat exchange unit to cool a natural gas feed stream. In some embodiments the liquid methane pump unit is a sleeve bearing type unit. Beneficially, the disclosed systems and methods incorporate high head pumps for liquid methane compression instead of vaporizing the liquid methane and compressing it in a gaseous compression units that are typically used for this purpose, saving space, materials, and power.

US Patent:

20120289407, Nov 15, 2012

Filed:

Jan 6, 2011

Appl. No.:

13/519105

Inventors:

Eric D Nelson - Houston TX, US
Peter C Rasmussen - Pensacola FL, US
Stanley o Uptigrove - The Woodlands TX, US

International Classification:

H01L 39/02
F25D 31/00

US Classification:

505163, 622592

Abstract:

Provided is a natural gas processing facility for the liquefaction or regasification of natural gas. The facility includes a primary processing unit, e.g., refrigeration unit, for warming natural gas or chilling natural gas to at least a temperature of liquefaction. The facility also has superconducting electrical components integrated into the facility. The superconducting electrical components incorporate superconducting material so as to improve electrical efficiency of the facility by at least one percent over what would be experienced through the use of conventional electrical components. The superconducting electrical components may be one or more motors, one or more generators, one or more transfonners, switch gears, one or more electrical transmission conductors, variable speed drives, or combinations thereof.