Larry Joe Douglas
Nursing at Idalia, Denver, CO
License number
Colorado 439114
Issued Date
Oct 3, 1997
Renew Date
Jan 31, 1998
Expiration Date
Jan 31, 1998
Type
Certified Nurse Aide
Address
Address
1600 S Idalia St APT G, Denver, CO 80017
Professional information
Ses Product Manager At Eriks Usa
Position:
SES Product Manager at ERIKS USA
Location:
Greater Denver Area
Industry:
Plastics
Work:
ERIKS USA
since May 2008
-
SES Product Manager
Douglas Polymers
2005 - 2008
-
President
Education:
Colorado School of Mines 1990 - 1994
Bachelor, Engineering
Bachelor, Engineering
Designing Micellar Displacement Systems To Minimize Adsorption
US Patent:
3971439, Jul 27, 1976
Filed:
Mar 31, 1975
Appl. No.:
5/563437
Inventors:
Larry J. Douglas - Denver CO
Assignee:
Marathon Oil Company - Findlay OH
International Classification:
E21B 4322, E21B 4700, E21B 4900
US Classification:
166252
Abstract:
Where a micellar displacement fluid interacts with the rock of a particular reservoir to produce a negative surface potential, the least adsorption of surfactant occurs and slug instability due to surfactant loss is minimized. Thus, micellar displacement fluid integrity can be increased by selecting slug components which produce a more negative surface potential at the fluid-rock interface compared to the surface potential of the rock formation fluids prior to injection of the micellar system.
Optimizing Petroleum Recovery Micellar Systems Utilizing Zeta Potential
US Patent:
3976582, Aug 24, 1976
Filed:
Sep 13, 1973
Appl. No.:
5/397025
Inventors:
Larry J. Douglas - Denver CO
Charles B. Wenger - Denver CO
Charles B. Wenger - Denver CO
Assignee:
Marathon Oil Company - Findlay OH
International Classification:
E21B 4320, E21B 4322
US Classification:
252 855D
Abstract:
Micellar systems having maximum zeta potential are utilized for the recovery of petroleum. The invention involves the discovery that, on varying the composition of micellar systems, the point of maximum zeta potential corresponds with the point of minimum sulfonate adsorption, e. g. , on the formation rocks, and also corresponds with the point of maximum oil recovery by said micellar system.