ALAN J DEAN
Electrician at Chimney Sweep Dr, Houston, TX
License number
Texas 141942
Expiration Date
Aug 28, 2016
Category
Apprentice Electrician
Address
Address
13119 Chimney Sweep Dr, Houston, TX 77041
Phone
(713) 412-2101
Professional information
Precision Positioning Agm System
US Patent:
6816110, Nov 9, 2004
Filed:
Jul 30, 2003
Appl. No.:
10/629747
Inventors:
Ziwen W. Liu - Katy TX
Alan P. Dean - Houston TX
Alan P. Dean - Houston TX
Assignee:
Varco I/P, Inc. - Houston TX
International Classification:
H04B 785
US Classification:
34235703, 34235706
Abstract:
A precision positioning AGM system is provided for detecting the location of an AGM device, as well as the time of a smart pig passing the location. The practice combines two processes into one by using a GPS receiver at the AGM location to record raw GPS measurements at each AGM location. A second GPS receiver is provided at a remote known base location. These position signals and a pig-passage time signal from the AGM provide high accuracy positioning and pig passage time, with only one crew being required. These signals are broadcast to a remote monitoring site. This makes real-time pig tracking unnecessary and eliminates the need for more than one crew visiting the same site.