Yu Jiun Chen

US Patent:

20180334897, Nov 22, 2018

Filed:

Dec 31, 2015

Appl. No.:

15/779494

Inventors:

- Houston TX, US
Zhengchun LIU - Sugar Land TX, US
Yu CHEN - Houston TX, US
Jie HE - College Station TX, US

International Classification:

E21B 44/02
E21B 49/00
E21B 7/04
G01V 5/10
G01V 1/30

Abstract:

Automated planning, control and/or geosteering assistance for a subterranean drilling operation is performed using an analytical drilling performance model that is a function of a rock brittleness index that is correlated with a corresponding formation property metric which serves as brittleness correlate and for which applicable measurement values are available from log data pertaining to the relevant formation. Correlation between the brittleness index and the brittleness correlate is such that a particular brittleness correlate value indicates a unique corresponding brittleness index value. One embodiment of the drilling performance model expresses rate of penetration as a function of a B4 brittleness index correlated with a sonic log brittleness correlate provided by pressure-wave velocity.

US Patent:

20170183450, Jun 29, 2017

Filed:

Mar 13, 2017

Appl. No.:

15/456624

Inventors:

- Duesseldorf, DE
Timothy M. Champagne - Orange CA, US
Yu Chen - Eastvale CA, US
John Killoran - Dublin, IE

International Classification:

C08G 73/02
C08L 79/02

Abstract:

A curable composition is provided, which includes a benzoxazine component; and a cationic catalyst comprised of a lithium cation and an anion comprising a hexahalogenated Group 15 element.

Address:

2826 Ann Arbor Dr, Houston, TX 77063

VIN:

1HGCM56167A017471

Make:

HONDA

Model:

ACCORD

Year:

2007