Patents Assigned to Standard Oil Proppants Company
  • Use of uncalcined/partially calcined ingredients in the manufacture of sintered pellets useful for gas and oil well proppants
    Patent number: 4658899
    Abstract: A composite, sintered, spherical pellet and a method for its manufacture are described. The pellet is prepared from at least one uncalcined or partially calcined ingredient selected from the group consisting of clay and bauxite materials, dust collector fines and alumina. The pellet may have an alumina-to-silica ratio from about 9:1 to about 1:1. The pellet has a specific gravity of less than 3.40. Use of such pellets in propping hydraulically fractured subterranean formations is also described.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: April 21, 1987
    Assignee: Standard Oil Proppants Company, L.P.
    Inventor: Jeremiah J. Fitzgibbon
  • Use of uncalcined/partially calcined ingredients in the manufacture of sintered pellets useful for gas and oil well proppants
    Patent number: 4623630
    Abstract: A composite, sintered, spherical pellet and a method for its manufacture are described. The pellet comprises clay and a member of the group of bauxite, alumina, or mixtures thereof; the pellet being prepared from at least one uncalcined or partially calcined ingredient. The pellet may have an alumina-to-silica ratio from about 9:1 to about 1:1. The pellet has a specific gravity of less than 3.40. Use of such pellets in propping hydraulically fractured subterranean formations is also described.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: November 18, 1986
    Assignee: Standard Oil Proppants Company
    Inventor: Jeremiah J. Fitzgibbon