DR. JOHN BRITTON WRIGHT, O.D.
Optometry at Medical Plaza Dr, Spring, TX
License number
Texas 5287TG
Category
Optometry
Type
Optometrist
Address
Address
1001 Medical Plaza Dr SUITE 100, Spring, TX 77380
Phone
(281) 367-2020
(281) 292-2297 (Fax)
(281) 292-2297 (Fax)
Professional information
John B Wright, The Woodlands TX - OD (Doctor of Optometry)
Specialties:
Optometry
Address:
1001 Medical Plaza Dr SUITE 100, The Woodlands 77380
(281) 367-2020 (Phone), (281) 292-2297 (Fax)
(281) 367-2020 (Phone), (281) 292-2297 (Fax)
Languages:
English
Spectral Gamma Ray Logging-While-Drilling System
US Patent:
7253401, Aug 7, 2007
Filed:
Mar 15, 2004
Appl. No.:
10/809066
Inventors:
Medhat W. Mickael - Sugar Land TX, US
Dale A. Jones - Houston TX, US
Donald A. Phelps - Arlington TX, US
John E. Wright - Spring TX, US
Dale A. Jones - Houston TX, US
Donald A. Phelps - Arlington TX, US
John E. Wright - Spring TX, US
Assignee:
Weatherford Canada Partnership
International Classification:
G01V 5/00
US Classification:
250261, 2502693, 2502521
Abstract:
A method for determining concentrations of naturally occurring radioactive elements in earth formation by analysis of gamma ray energy spectra measured by at least one gamma ray detector while the borehole is being drilled. Gain of the gamma ray detector is controlled automatically through analysis of the spectra. The one or more gamma ray detectors are disposed at the periphery of the downhole instrumentation to maximize sensitivity. Elemental concentrations of naturally occurring radioactive elements such as potassium, uranium and thorium are measured either as a function of depth in the borehole, or as a function of aximuthal sectors around the borehole wall, or as a function of both depth and azimuthal sectors.