David Speir Mccormick

US Patent:

7630517, Dec 8, 2009

Filed:

Jul 13, 2005

Appl. No.:

11/180191

Inventors:

Piotr Mirowski - New York NY, US
Daniel Tetzlaff - Houston TX, US
David McCormick - Acton MA, US
Nneka Williams - Boston MA, US
Claude Signer - Somerville MA, US

Assignee:

Schlumberger Technology Corporation - Ridgefield CT

International Classification:

G06K 9/00
G06G 7/48
G01V 1/40
G01V 3/18
G01V 5/04
G01V 9/00
G06F 17/18
G06F 19/00

US Classification:

382109, 702 6, 702179, 703 10

Abstract:

A computer-implemented method is provided that automatically characterizes and verifies stationarity of a training image for use in multipoint geostatistical analysis. The stationarity is preferably characterized by statistical measures of orientation stationarity, scale stationarity, and category distribution stationarity.

US Patent:

8311779, Nov 13, 2012

Filed:

Dec 22, 2008

Appl. No.:

12/341735

Inventors:

Stein Inge Pedersen - Stavanger, NO
Tuanfeng Zhang - Lexington MA, US
Christen Knudby - Cambridge MA, US
David S McCormick - Acton MA, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

G06F 7/60
G06F 17/10

US Classification:

703 2, 703 10

Abstract:

A multipoint geostatistics computer-implemented method for modeling of discrete properties, comprising acquiring by a computer software program a training image made from at least one dimensional array of discrete property values, the values depicting the spatial relationship and variability considered to be typical of a n-dimensional surface to be modeled; constructing a search tree, the tree representing the probability of occurrence of combinations of values of a discrete property value, the construction being performed by counting these occurrences in the training image. The non-branching sequences of the search tree are compressed to what essentially amounts to a single node, by keeping only the relevant information the sequences contain.

US Patent:

20150134255, May 14, 2015

Filed:

Nov 7, 2014

Appl. No.:

14/536289

Inventors:

- Sugar Land TX, US
Neil F. Hurley - Boston MA, US
Ridvan Akkurt - Lexington MA, US
David McCormick - Acton MA, US
Shu Zhang - Riverside CA, US

International Classification:

G01V 99/00
G01V 9/00
G01V 3/38
G01V 5/04
G01V 1/28
G01V 1/40

US Classification:

702 7, 702 8, 702 14

Abstract:

Methods of generating structural models of highly deviated or horizontal wells may be generated from the measurement of true stratigraphic thickness in three dimensions (TST3D). In one aspect, methods may include generating a structural model from one or more deviation surveys of a horizontal well, one or more single channel log measurements, and a three-dimensional reference surface.

US Patent:

20150114633, Apr 30, 2015

Filed:

Jun 5, 2013

Appl. No.:

14/405512

Inventors:

- Sugar Land TX, US
- Stavanger, NO
David S. McCormick - Acton MA, US
Hartmut Hubertus Schutt - Stavanger, NO
Mark Thompson - Trondheim, NO
Richard Tøndel - Trondheim, NO

International Classification:

E21B 47/00
E21B 43/24

US Classification:

1662521, 7315239

Abstract:

A methodology and system promote hydrocarbon production from a reservoir using steam assisted gravity drainage. The technique comprises deploying sensors in a subsurface environment containing the reservoir. The sensors are used to obtain data on properties related to a steam assisted gravity drainage region of the reservoir. Based on the data collected from the sensors, the amount of steam injected into areas of the reservoir may be adjusted to facilitate, e.g., optimize, production of hydrocarbons.