Benoit Marie Couet, 7357 Flaxfield Rd, Dudley, MA 01571

6775578, Aug 10, 2004

Aug 16, 2001

09/930935

Benoit Couet - Weston CT
Robert Burridge - Boston MA
David Wilkinson - Ridgefield CT

Schlumberger Technology Corporation - Ridgefield CT

G05B 1300

700 28, 700 29, 703 10, 166268

Methods for optimization of oil well production with deference to reservoir and financial uncertainty include the application of portfolio management theory to associate levels of risk with Net Present Values (NPV) of the amount of oil expected to be extracted from the reservoir. Using the methods of the invention, production parameters such as pumping rates can be chosen to maximize NPV without exceeding a given level of risk, or, for a given level of risk, the minimum guaranteed NPV can be predicted to a 90% probability. An iterative process of generating efficient frontiers for objective functions such as NPV is provided.

6880402, Apr 19, 2005

Oct 26, 2000

10/088723

Benoit Couet - Weston CT, US
Timothy Gareth John Jones - Cottenham, GB

Schlumberger Technology Corporation - Ridgefield CT

G01H001/12
G01H013/00

73579, 73 5424, 73 5425, 73 149, 73 6453

Described is an apparatus for detecting and removing deposits from a surface exposed to wellbore fluids. The apparatus can monitor the rate of deposition and subsequently remove the deposited material. The combination of detection apparatus and removal apparatus provides an instrument with self-cleaning operation mode.

6886406, May 3, 2005

Oct 26, 2000

10/088752

Benoit Couet - Weston CT, US
Timothy Gareth John Jones - Cottenham, GB

Schlumberger Technology Corporation - Ridgefield CT

G01H001/12
G01H013/00

73579, 73 5424, 73 5425, 73 149, 73 6453

Described is a downhole apparatus for detecting and removing deposits from a surface exposed to wellbore fluids. The apparatus can monitor the rate of deposition and subsequently remove the deposited material. The combination of detection apparatus and removal apparatus provides a downhole instrument with self-cleaning operation mode.

7112783, Sep 26, 2006

Sep 8, 2003

10/657391

Darwin Ellis - Ridgefield CT, US
Benoit Couet - Weston CT, US
Michael Evans - Missouri City TX, US
Charles R. Case - West Redding CT, US
Françoise Allioli - Paris, FR

Schlumberger Technology Corporation - Sugar Land TX

G01V 5/10

2502694, 2502696, 2502697

The invention concerns a neutron measurement method for determining porosity of an earth formation surrounding a borehole comprising:.

7512543, Mar 31, 2009

Dec 23, 2002

10/328212

Bhavani Raghuraman - Wilton CT, US
Benoit Couet - Weston CT, US

Schlumberger Technology Corporation - Ridgefield CT

G06F 9/44
G06F 7/60
G06G 7/48

705 7, 703 2, 703 9, 703 10

The present invention discloses a method for performing a stochastic analysis of one or more hydrocarbon reservoir exploitation strategies taking into consideration one or more uncertain parameters. The method optimizes an objective function that considers the gain in value of a reservoir management goal attributable to these exploitation strategies. The methodology may be used to decide whether or not to implement a strategy. Alternatively, it may be used to decide which competing strategy will yield the maximum benefit. In another embodiment of the present invention, the value of information obtained from the installation of additional sensors or new measurements is also considered.

7716029, May 11, 2010

Jan 23, 2007

11/656840

Benoit Couet - Weston CT, US
Michael Prange - Danbury CT, US
William Bailey - Danbury CT, US
Hugues Djikpesse - Stamford CT, US
Vladimir Druskin - Brookline MA, US

Schlumberger Technology Corporation - Houston TX

G06G 7/48

703 10

A method is disclosed for performing optimal gridding in reservoir simulation, the method comprising: establishing an optimal coarse grid proxy that can replace all or parts of a fine grid with a coarse grid while preserving an accuracy of a predefined simulation model output, the step of establishing an optimal coarse grid proxy including finding, by using an optimizer, a best fit of a coarse grid output to the output of a training set.

7801707, Sep 21, 2010

Aug 2, 2006

11/461911

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

Schlumberger Technology Corporation - Sugar Land TX

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

703 2, 703 10

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.

7908230, Mar 15, 2011

Feb 6, 2008

12/026589

William John Bailey - Somerville MA, US
Joseph Ayoub - Katy TX, US
Benoit Couet - Belmont MA, US
Vincent Dury - Oslo, NO
Wenyu Kong - Cheltenham, GB
David J Wilkinson - Ridgefield CT, US

Schlumberger Technology Corporation - Sugar Land TX

G06N 5/00

706 13, 706 45

A method for optimizing fracture treatments includes interpreting a nominal pump schedule corresponding to a nominal value for each fracture control parameter. The method further includes interpreting environmental variables, and interpreting probability distributions for each of the environmental variables that is uncertain. The method further includes defining an objective function such as a net present value of each fracture treatment over a 365 day period following the fracture treatment. The method includes determining an optimal value for each fracture control parameter according to the objective function by determining the fracture control parameter values that yield the best mean net present value given the variability in the environmental variables as described by their probability distributions.