Thomas Matthew Dea
Engineers in Denver, CO
License number
Colorado 56781
Issued Date
May 9, 2003
Renew Date
May 9, 2003
Expiration Date
Dec 29, 2003
Type
Engineer Intern
Address
Address
4043 So Wisteria Way, Denver, CO 80237
Professional information
Vice President At Tza Water Engineers
Location:
Greater Denver Area
Industry:
Civil Engineering
Method And Apparatus For Enhancing Well Performance
US Patent:
5988284, Nov 23, 1999
Filed:
Oct 14, 1997
Appl. No.:
8/950352
Inventors:
Thomas M. Dea - Denver CO
Assignee:
Layne Christensen Company - Mission Woods KS
International Classification:
E21B 4302
US Classification:
166369
Abstract:
A shroud which surrounds a submersible pump is lowered into a water well along with a column pipe which carries the pump. The pump is located below the top of a screen which provides a perforated portion of the well casing. The shroud has an open bottom end located below the pump. An inflatable bladder attached to the shroud can be inflated through an inflation hose extending to the surface. The shroud may be connected with the column pipe by radial arms which maintain an open flow path between the column pipe and shroud. Water which falls in the casing when the pumping level drops below the top of the screen is not subject to aeration from the surface because of the seal provided by the bladder. The shroud around the pump creates a vacuum effect which increases the well capacity.