Ha San Nguyen

20110278024, Nov 17, 2011

May 13, 2011

13/107074

Sunder Ramachandran - Sugar Land TX, US
Vladimir Jovancicevic - Richmond TX, US
Ha M. Nguyen - Pearland TX, US

BAKER HUGHES INCORPORATED - Houston TX

E21B 43/16
C01B 31/20

166402, 4234371

Recovering oil and gas from subterranean oil and gas reservoirs using gas injection can serve an additional purpose of capturing and sequestering carbon dioxide. This can be accomplished where the feed gas for the gas injection is, at least in part, carbon dioxide from a carbon dioxide capture and sequestration process. Corrosion of steel in a gas transportation system due to the presence of carbon dioxide and water and oxygen may be prevented or at least mitigated by employing a corrosion inhibitor effective at preventing or mitigating steel corrosion in the presence of oxygen and carbon dioxide. The corrosion inhibitors may incorporate alkyl succinic acids, alkyl succinic anhydrides, and trimer acids.

20200361888, Nov 19, 2020

May 13, 2020

15/931051

- Houston TX, US
Daniel F. White - Houston TX, US
Ha H. Nguyen - Houston TX, US
Robert J. Rebman - Pearland TX, US
Chelsee A. Arceneaux - Deer Park TX, US

Lyondell Chemical Technology, L.P. - Houston TX

C07D 301/32

Methods of drying streams that include propylene oxide. The methods may include contacting a stream that includes propylene oxide with molecular sieves. The molecular sieves may be in a drying unit, and may be regenerated. The streams that include propylene oxide may include one or more other organic compounds.

20190276579, Sep 12, 2019

Mar 8, 2019

16/297254

- Houston TX, US
David S. Mannel - Humble TX, US
Larry W. Arndt - Humble TX, US
Ha H. Nguyen - Houston TX, US
Barbara Kimmich - Houston TX, US

Lyondell Chemical Technology, L.P. - Houston TX

C08G 4/00
C07C 41/58
C07C 41/56
C07C 43/04
B01D 3/14
B01D 3/06

A method of producing dimethoxymethane oligomers (DMMn), the method comprising: reacting a formaldehyde source and dimethoxymethane monomer (DMM1) in the presence of an acidic catalyst to produce a reaction effluent comprising DMMn and unreacted DMM1; and separating, from the reaction effluent, DMM1-2 including unreacted DMM1 and DMMn having a chain length n equal to 2 (DMM2), dimethoxymethane oligomers having a chain length n in the range of from 2-5 (DMM2-5), dimethoxymethane oligomers having a chain length n of ≥5 (DMM5+), or a combination thereof, wherein the separating comprises distillation in the presence of at least one alcohol, a distillate fuel, or both.

20190113640, Apr 18, 2019

Oct 10, 2018

16/156725

Ha Dinh Nguyen - Katy TX, US

G01V 1/30

A method for estimating reservoir quality from a reflection seismic survey includes determining seismic interval velocity (or their inverse, interval transit time “ITT”) with respect to depth from the reflection seismic survey. A normal compaction trend of the seismic interval velocity with respect to depth is determined. A fractional amount of sand and a fractional amount of shale at at least one depth is determined based on deviation of the seismic interval velocity (or ITT) at the at least one depth from the normal compaction trend.

20180312764, Nov 1, 2018

Apr 24, 2018

15/961651

- Houston TX, US
Dan D. Lindsey - Houston TX, US
Barbara Kimmich - Houston TX, US
Justin E. Turner - Conroe TX, US
Nicholas Bruschi - Houston TX, US
Ha H. Nguyen - Houston TX, US
Pranit S. Metkar - Houston TX, US
Anthony S. Dearth - Houston TX, US

Lyondell Chemical Technology, L.P. - Houston TX

C10G 45/08
C07C 15/46
C07C 5/56
C07D 303/04
C07D 301/08
B01J 27/051

The present disclosure relates to a method including subjecting an organic stream comprising at least one oxygenate to hydrotreatment, whereby a hydrotreatment product comprising ethylbenzene is produced, wherein the organic stream is a product of a process for the production of propylene oxide; and separating an ethylbenzene product stream from the hydrotreatment product, to yield a residual stream.

20180221787, Aug 9, 2018

Feb 1, 2018

15/886446

- Houston TX, US
Ha H. Nguyen - Houston TX, US
Dan D. Lindsey - Houston TX, US
Barbara Kimmich - Houston TX, US
Nicholas Bruschi - Houston TX, US
Justin E. Turner - Houston TX, US
Debra L. Jackson - Houston TX, US
Anthony S. Dearth - Houston TX, US

Lyondell Chemical Technology, L.P. - Houston TX

B01D 11/04
C07D 301/32
C07C 15/46
C07C 7/10
C07C 7/12

A method including contacting an organic stream with water and carbon dioxide, whereby sodium is extracted from the organic stream, and separating an aqueous sodium salt-containing phase from an organic phase comprising a reduced sodium content. The organic stream can be a heavy residue formed in the co-production of propylene oxide and styrene. Contacting can include combining the carbon dioxide with the water to form a CO-saturated water stream and contacting the CO-saturated water stream with the organic stream, and/or combining the organic stream and the water to form a mixture and injecting the carbon dioxide as a gas thereinto. The method can further include repeating the contacting and the separating one or more times on the organic phase, subjecting the organic phase to ion exchange, or both, to obtain an organic phase having a further reduced sodium content. A system for carrying out the method is also provided.

20150267527, Sep 24, 2015

Mar 21, 2014

14/221681

- Houston TX, US
Ha Dinh Nguyen - Katy TX, US

CONOCOPHILLIPS COMPANY - Houston TX

E21B 47/06

The invention relates to a method for estimating pore pressure in subterranean shale formations such as gas- or organic-rich shale where pore pressure predictions based on either a resistivity log or a porosity-indicative log such as sonic tend to be inaccurate. The method involves combining the resistivity log with the porosity-indicative log using a Eaton formula to give an estimate of pore pressure which is accurate both for conventional water wet shale and for organic-rich shale.