Wu Fang Chen

US Patent:

20110308386, Dec 22, 2011

Filed:

May 13, 2011

Appl. No.:

13/106913

Inventors:

Jerome Claracq - Oostakker, BE
James F. Sturnfield - Rosharon TX, US
Peter Cate - Blockley, GB
Wu Chen - Lake Jackson TX, US
Leonardo C. Lopez - Midland MI, US

International Classification:

B03C 3/28
B23P 11/00
B03C 3/00

US Classification:

95 57, 96 17, 29428

Abstract:

The present invention generally relates to an efficiency-enhanced gas filter medium comprising at least two fiber layers comprising a combination of two or more electrostatically-interacting fiber layers such that the efficiency-enhanced gas filter medium is characterizable by a gas filtration efficiency enhancement from the combination of the two or more electrostatically-interacting fiber layers, and related manufactured articles, processes and methods.

US Patent:

20170241250, Aug 24, 2017

Filed:

Mar 18, 2015

Appl. No.:

15/115293

Inventors:

- Midland MI, US
Naoko Akiya - Missouri City TX, US
Wu Chen - Lake Jackson TX, US
Paul A. Gillis - Lake Jackson TX, US
Abu Mokhtarul Hassan - Pearland TX, US
Zubin B. Kuvadia - Houston TX, US
Biplab Mukherjee - Pearland TX, US
Jorge H. Pazmino - Pearland TX, US
Defne Kayrak Talay - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

E21B 43/24
C09K 8/584
C09K 8/592

Abstract:

The present invention relates to an in situ staged steam extraction method for removing petroleum products from a heavy oil or bitumen reservoir from subterranean locations. Specifically, each injection stage comprises a different steam composition. A steam composition may consist essentially of steam or may comprise one or more enhanced oil recovery agent.