PAUL R LEMIEUX
Engineering in Fort Smith, AR
License number
Massachusetts 21919
Issued Date
Mar 29, 1968
Expiration Date
Jun 30, 1998
Type
Mechanical Engineer
Address
Address
Fort Smith, AR 72903
Professional information
Method For Making Lightweight Proppant For Oil And Gas Wells
US Patent:
4977116, Dec 11, 1990
Filed:
Feb 21, 1990
Appl. No.:
7/482632
Inventors:
David S. Rumpf - North Tonawanda NY
Paul R. Lemieux - Fort Smith AR
Paul R. Lemieux - Fort Smith AR
Assignee:
Norton-Alcoa - Ft. Smith AR
International Classification:
C04B 3510
US Classification:
501128
Abstract:
A lightweight oil and gas well proppant made by simultaneously mixing and compacting a mixture of kaolin clay which has been calcined at a temperature low enough to prevent the formation of mullite and crystobalities to an LOI of 12 or less when tested at 1400. degree. C. , and amorphous to microcrystalline silica both of which have been milled to an average agglomerated particle size of 7 microns or less to form green pellets, and then drying, screening and sintering the pellets to form proppant pellets having a specific gravity of 2. 7 or less, the proppant having a conductivity of at least 3,000 millidarci-feet as measured by the StimLab Technique after 50 hours at 8,000 psi and 275. degree. F. , in the presence of deoxygenated aqueous 2% solution of KCl using sandstone shims.