Robert Edward Kramm
Engineering at Nocona Dr, Plano, TX
License number
Louisiana PE.0032584
Issued Date
Jul 26, 2006
Expiration Date
Mar 31, 2018
Category
Civil Engineer
Type
Civil Engineer
Address
Address
4704 Nocona Dr, Plano, TX 75024
Professional information
Method For Fracturing Coal Seams
US Patent:
4995463, Feb 26, 1991
Filed:
Jun 4, 1990
Appl. No.:
7/532830
Inventors:
Robert C. Kramm - Plano TX
Robert H. Lane - Plano TX
Robert H. Lane - Plano TX
Assignee:
Atlantic Richfield Company - Los Angeles CA
International Classification:
E21B 43267
US Classification:
166308
Abstract:
Method for fracturing coal seams to improve the production (e. g. methane and/or water) therefrom. A water-based fracturing fluid is injected into the coal seam under pressure wherein the fracturing fluid contains both a wetting agent and a dispersant. The wetting agent contacts the fines which are formed during the fracturing of the coal and converts them from "hydrophobic" to "hydrophilic" while the dispersant serves to disperse and suspend the fines within the fracturing fluid. This prevents early screen-out of the fines from the fracturing fluid which allows the fluid to propagate fractures of longer lengths into a coal seam before the fines settle out to block further flow through a fracture.