Andrew J. Blanchard
Engineering at Langford St, College Station, TX

License number
Louisiana EI.0002759
Issued Date
Jan 1, 1900
Category
Civil Engineer
Address
Address
2013 Langford St, College Station, TX 77840

Professional information

Andrew Blanchard Photo 1

Method And Apparatus For Underwater Detection Of Hydrocarbons

US Patent:
4394573, Jul 19, 1983
Filed:
Dec 15, 1980
Appl. No.:
6/216137
Inventors:
Aderbal C. Correa - Ponca City OK
John S. Gergely - Ponca City OK
Andrew J. Blanchard - College Station TX
Assignee:
Conoco Inc. - Ponca City OK
International Classification:
G01V 500, G01T 1167
US Classification:
250253
Abstract:
Method and apparatus for detecting the presence of hydrocarbons and other substance that fluoresces or absorbs light within a body of water which utilizes a controlled submersible vehicle scanning at or near the water bottom. The method utilizes a selected frequency light source as carried by the submersible to scan the water bottom, and the returned light energy, either at the wavelength of oil fluorescing in water or the source frequency backscatter, is detected and processed for the water bottom as well as a water region that is a selected distance above the water floor. Alternative forms of apparatus are disclosed for carrying out the functions of both oil fluorescence detection, and for obtaining differential absorption readings as to light source backscatter energy that is created by the ambient water and other factors in the water environmentsuch as marine life, turbidity, etc.


Andrew Blanchard Photo 2

Method And Apparatus For Underwater Detection Of Hydrocarbons

US Patent:
4434364, Feb 28, 1984
Filed:
Jan 3, 1982
Appl. No.:
6/454959
Inventors:
Aderbal C. Correa - Ponca City OK
John S. Gergely - Ponca City OK
Andrew J. Blanchard - College Station TX
Assignee:
Conoco Inc. - Ponca City OK
International Classification:
G01V 500
US Classification:
250253
Abstract:
Method and apparatus for detecting the presence of hydrocarbons and other substance that fluoresces or absorbs light within a body of water which utilizes a controlled submersible vehicle scanning at or near the water bottom. The method utilizes a selected frequency light source as carried by the submersible to scan the water bottom, and the returned light energy, either at the wavelength of oil fluorescing in water or the source frequency backscatter, is detected and processed for the water bottom as well as a water region that is a selected distance above the water floor. Alternative forms of apparatus are disclosed for carrying out the functions of both oil fluorescence detection, and for obtaining differential absorption readings as to light source backscatter energy that is created by the ambient water and other factors in the water environment such as marine life, turbidity, etc.