Neil W Bostrom

US Patent:

7600413, Oct 13, 2009

Filed:

Nov 29, 2006

Appl. No.:

11/564430

Inventors:

Jagdish Shah - Southington CT, US
Neil William Bostrom - Cambridge MA, US
Hua Chen - Ridgefield CT, US
Shigeo Daito - Lexington MA, US
Edward Harrigan - Ridgefield CT, US

Assignee:

Schlumberger Technology Corporation - Ridgefield CT

International Classification:

G01N 30/04

US Classification:

73 2342, 73 2335

Abstract:

A self-contained micro-scale gas chromatography system that includes a plurality of gas chromatography components arranged on a micro-fluidic platform with nearly zero dead volume “tubeless” fluidic connections for the gas chromatography components. The micro-fluidic platform includes a plurality of flow channels that provide fluid flow paths for a sample, carrier gas and waste gas through and among the micro-fluidic platform and the plurality of gas chromatography components. The system may also include an on-board supply of carrier gas and on-board waste management, as well as a thermal management scheme making the system suitable for use in oil and gas wells and also other remote environments.

US Patent:

7637151, Dec 29, 2009

Filed:

Dec 19, 2006

Appl. No.:

11/612596

Inventors:

Bhavani Raghuraman - Lexington MA, US
Kristofer Gunnar Paso - Brooklyn Park MN, US
Neil William Bostrom - Cambridge MA, US

Assignee:

Schlumberger Technology Corporation - Cambridge MA

International Classification:

E21B 47/08

US Classification:

7315255, 73863, 250255

Abstract:

The operation, analysis and interpretation of a chromatographic system can be significantly enhanced by coupling therewith one or more fluid property measurements that provides an initial indication of the fluid type, the presence of any contamination, an estimate of the hydrocarbon composition (C1, C2-C5 and C6+), gas/oil ratio, color and/or fluorescence measurements. Other measurements that can be used in the initial stage can include density, viscosity, phase transition determinations. These measurements may be used to enhance, in real-time, the GC sampling protocol, the analysis protocol and also improve the robustness of the interpretation of the chromatogram.

US Patent:

7654130, Feb 2, 2010

Filed:

Dec 21, 2006

Appl. No.:

11/614735

Inventors:

Jagdish Shah - Southington CT, US
Hua Chen - Ridgefield CT, US
Shigeo Daito - Lexington MA, US
Neil William Bostrom - Cambridge MA, US

Assignee:

Schlumberger Technology Corporation - Cambridge MA

International Classification:

G01N 30/04

US Classification:

73 2342, 73 2335

Abstract:

A self-contained micro-scale gas chromatography system that includes a plurality of gas chromatography components arranged on a micro-fluidic platform with nearly zero dead volume “tubeless” fluidic connections for the gas chromatography components. The micro-fluidic platform includes a plurality of flow channels that provide fluid flow paths for a sample, carrier gas and waste gas through and among the micro-fluidic platform and the plurality of gas chromatography components. The gas chromatography components may include a micro-scale gas chromatography column that is implemented as a MEMS device and includes embedded heating and cooling elements. The system may also include an on-board supply of carrier gas and on-board waste management, as well as a thermal management scheme making the system suitable for use in oil and gas wells and also other remote environments.

US Patent:

7658092, Feb 9, 2010

Filed:

Dec 22, 2006

Appl. No.:

11/615426

Inventors:

Neil William Bostrom - Cambridge MA, US
Shigeo Daito - Lexington MA, US
Jagdish Shah - Southington CT, US
Robert L. Kleinberg - Cambridge MA, US

Assignee:

Schlumberger Technology Corporation - Cambridge MA

International Classification:

G01N 30/02

US Classification:

73 2335, 73 2325, 73 2341

Abstract:

A heat switch for remote self-contained gas chromatography is disclosed. The device mechanically separates a hot or cold reservoir from the chromatography column when heating or cooling is not needed. The column needs a cooling system to obtain initial temperatures below ambient. At other times the column needs to be heated to relatively high temperatures, during which time the cooling system is preferably detached. The heat switch allows for rapid temperature changes while minimizing the peak cooling power requirement.

US Patent:

8028562, Oct 4, 2011

Filed:

Dec 17, 2007

Appl. No.:

11/958049

Inventors:

Jagdish Shah - Southington CT, US
Neil William Bostrom - Belmont MA, US
Bhavani Raghuraman - Wilton CT, US
Kristofer Gunnar Paso - Brooklyn Park MN, US

Assignee:

Schlumberger Technology Corporation - Cambridge MA

International Classification:

G01N 30/02

US Classification:

73 2335

Abstract:

Methods and related systems are described for high pressure chromatographic analysis. The described system includes a flowpath adapted to flow a mobile phase and the sample at high pressures, an injector adapted to inject the fluid sample into a flowpath, a separation column adapted to operate at high pressures for separating various components, a detector and a processor that calculates the amount of at least one component of the fluid sample. The system can operate a pressures above 20 atm or even 100 atm, and temperatures above about 100 degrees Celsius. The system can deployed in a wellbore in a subterranean rock formation, and include fluid collection system for obtaining the fluid sample downhole. The system can also be located close to a wellhead and includes a tap in fluid communication with a surface flowline carrying produced fluids and the injector.

US Patent:

8250904, Aug 28, 2012

Filed:

Feb 28, 2008

Appl. No.:

12/039437

Inventors:

Jagdish Shah - Southington CT, US
William H. Steinecker - Dedham MA, US
Neil William Bostrom - Belmont MA, US
Bhavani Raghuraman - Wilton CT, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G01N 30/04

US Classification:

73 2342

Abstract:

The present invention generally recites a method, system and apparatus for fluid analysis and more specifically recites a method system and apparatus for multistage injection of a fluid to be analyzed into a fluid analysis instrument.

US Patent:

20080135237, Jun 12, 2008

Filed:

May 25, 2007

Appl. No.:

11/753863

Inventors:

Francois Dubost - Orgeval, FR
Oliver C. Mullins - Ridgefield CT, US
Lalitha Venkataramanan - Lexington MA, US
Christopher Harrison - Auburndale MA, US
Neil Bostrom - Cambridge MA, US
Robert Kleinberg - Cambridge MA, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - Cambridge MA

International Classification:

E21B 47/06

US Classification:

16625003, 16625001

Abstract:

A method of monitoring a nonhydrocarbon and nonaqueous fluid injected into the earth's subsurface through a first wellbore that involves positioning a fluid analysis tool within a second wellbore and determining the presence of the injected nonhydrocarbon and nonaqueous fluid by making a measurement downhole on the injected nonhydrocarbon and nonaqueous fluid using the fluid analysis tool. Also a related method of enhancing hydrocarbon production from a subsurface area having first and second wellbores that involves injecting a nonhydrocarbon and nonaqueous fluid into the subsurface through the first wellbore, positioning a fluid analysis tool within the second wellbore, and determining the presence of the injected nonhydrocarbon and nonaqueous fluid by making a measurement downhole on the injected nonhydrocarbon and nonaqueous fluid using the fluid analysis tool. Further, a related method of determining the relative or absolute quantity of a nonhydrocarbon and nonaqueous fluid injected into the earth's subsurface through a first wellbore that involves positioning a fluid analysis tool within a second wellbore, measuring the near-infrared spectroscopy signature of fluid downhole using the fluid analysis tool, measuring the downhole temperature and pressure using the fluid analysis tool, and estimating a relative or absolute quantity of the injected nonhydrocarbon and nonaqueous fluid within said downhole fluid using the measured near-infrared spectroscopy signature, the temperature, and the pressure to estimate a partial pressure of hydrocarbon constituents of the downhole fluid.

US Patent:

20090158820, Jun 25, 2009

Filed:

Oct 9, 2008

Appl. No.:

12/248545

Inventors:

Neil William Bostrom - Belmont MA, US
Robert Leonard Kleinberg - Cambridge MA, US
Kristofer Gunnar Paso - Trondheim, NO
Bhavani Raghuraman - Wilton CT, US
Gordon R. Lambertus - Wellesley MA, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - Cambridge MA

International Classification:

G01N 30/62
G01N 30/28

US Classification:

73 6153, 73 6152, 73 6156

Abstract:

Advanced remote self-contained chromatographic systems and techniques for analyzing a mixture comprising components having a wide range of boiling points. The chromatographic systems and techniques can utilize components and techniques that allow staged, simultaneous, and/or sequential vaporization of an analyte to facilitate rapid analysis. The chromatographic systems and techniques can also utilize components and techniques that focus eluents from a first separation stage prior to reduce characterization time in subsequent stages.