Mark Delestatius
Engineering in New Orleans, LA
License number
Louisiana PE.0014047
Issued Date
Nov 27, 1973
Expiration Date
Mar 31, 2017
Category
Civil Engineer
Type
Civil Engineer; Petroleum Engineer
Address
Address
PO Box 19302, New Orleans, LA 70179
Professional information
Method And Apparatus To Improve The Displacement Of Drilling Fluid By Cement Slurries During Primary And Remedial Cementing Operations, To Improve Cement Bond Logs And To Reduce Or Eliminate Gas Migration Problems
US Patent:
5377753, Jan 3, 1995
Filed:
Jun 24, 1993
Appl. No.:
8/080547
Inventors:
John P. Haberman - Houston TX
Mark Delestatius - New Orleans LA
Dan G. Brace - Needville TX
Mark Delestatius - New Orleans LA
Dan G. Brace - Needville TX
Assignee:
Texaco Inc. - White Plains NY
International Classification:
E21B 4300
US Classification:
166249
Abstract:
Cement bonding and bond logs in wells are significantly improved by imparting random or periodic, pulsating, oscillating or vibrating pressure to the fluids present during all stages of a cementing operation. The effect is to eliminate gelation of the fluids to improve cement placement and to enable consolidation of the cement slurry. The pressure pulses can also be detected to monitor the condition of the setting slurry.