Michael C Curtis

6715551, Apr 6, 2004

Jun 19, 2001

09/885454

Michael P. Curtis - Houston TX
Nicida L. Maerefat - Sugar Land TX
Bruce E. Cornish - Spring TX

Halliburton Energy Services, Inc. - Houston TX

E21B 4700

16625016, 166 64, 166249, 1662541, 166364, 166150, 166151

Subterranean reservoir monitoring method, computer system with programming code for implementing the method, and computer readable media and data signal embodying such programming code, the method including one or more of: (a) reservoir screening; (b) reservoir modeling; (c) generating model seismic data from a model; (d) model modification based on current VSP data; (e) repeating step (c) and step (d) until differences between the model and VSP data are as desired; (f) obtaining model production data from a reservoir model, and if necessary modifying the model and returning to step (c); (g) generating seismic model data for time t; and (h) comparing seismic model data with actual seismic data for time t, and if necessary modify the reservoir model and return to step (f) or modify the model of the subteranean and return to step (c).

7102961, Sep 5, 2006

Apr 24, 2002

10/131688

Michael P. Curtis - Houston TX, US
Tacio Jose de Oliveira DaSilva - Houston TX, US

Halliburton Energy Services, Inc. - Houston TX

G01V 1/02
G01V 1/16

367 58, 367 37, 181106

The specification discloses a system and related method for installing seismic sensors in shallow, low-angle boreholes for obtaining conventional three-dimensional and four-dimensional seismic surveys. Installing seismic sensors in shallow, low-angle boreholes removes the sensing devices from surface anomalies that may affect seismic sensing performance. Moreover, installation of the seismic devices in this manner may be done in environmentally sensitive areas without undue environmental impact.

20060173191, Aug 3, 2006

Jan 5, 2006

11/325819

Michael Curtis - Houston TX, US

C07C 69/52
C07D 233/70

548316400, 560205000

This invention utilizes multiple charges of a transesterification catalyst in a transesterification process for the production of esters of alkyl (meth)acrylate monomers. The multiple catalyst charge addition strategy and reaction conditions provide for higher productivity and enhanced consistency.

20090209783, Aug 20, 2009

Feb 19, 2008

12/070507

Michael A. Curtis - Houston TX, US

C07C 67/48

560218

The present invention relates to a process for producing high purity hydroxyalkyl (meth)acrylates. Specifically, the present invention relates to an improved process which can commercially and advantageously yield high purity hydroxyalkyl (meth)acrylates from (meth)acrylic acid and alkylene oxides.

20130217914, Aug 22, 2013

Oct 13, 2011

13/881498

Michael A. Curtis - Houston TX, US
David A. Flosser - Missouri City TX, US
Jamie J. Juliette - Houston TX, US
Philippe P. Maillot - Kingwood TX, US
Donna Williams - Pearland TX, US

ROHM AND HAAS COMPANY - Philadelphia PA

C07C 67/48

560218

This invention provides a process for reducing biacetyl in alpha-, beta-unsaturated carboxylic acid esters, particularly in acrylic or methacrylic (hereinafter “(meth)acrylic”) esters, which comprise low levels of weak acid.

20140200366, Jul 17, 2014

Jun 1, 2012

14/119904

Michael A. Curtis - Houston TX, US
Michael S. Decourcy - Houston TX, US
David A. Flosser - Missouri City TX, US
Melissa Harris - Sugar Land TX, US
Jamie J. Juliette - Houston TX, US
Philippe P. Maillot - Kingwood TX, US

ROHM AND HAAS COMPANY - Philadelphia PA

C07C 51/44

562600

The present invention provides a method for reducing accumulation of solid materials when manufacturing a (meth)acrylic acid ester having low biacetyl content (less than 2 ppm) by adding an aromatic diamine under conditions which provide sufficient residence time and thorough mixing to react up to 100% by weight of the biacetyl in the crude (meth)acrylic acid ester stream, prior to separation and purification. A feedback method is also provided for reducing solids accumulation in the separation and purification equipment of such processes by measuring the biacetyl content and adjusting the aromatic diamine addition rate so that excess aromatic diamine can be minimized. A third embodiment provides a method for reversing an accumulation of solid materials during such processes, while still producing a (meth)acrylic acid ester having low biacetyl content (less than 2 ppm), by reducing or ceasing the addition rate of aromatic diamine for a period of time.