Patents by Inventor Randall Edgeman

Randall Edgeman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of treating subterranean formations using sequential proppant stages
    Patent number: 8127850
    Abstract: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: March 6, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Harold Dean Brannon, William Dale Wood, Randall Edgeman, Allan Ray Rickards, Christopher John Stephenson, Doug Walser, Mark Malone
  • METHOD OF TREATING SUBTERRANEAN FORMATIONS USING MIXED DENSITY PROPPANTS OR SEQUENTIAL PROPPANT STAGES
    Publication number: 20110180260
    Abstract: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.
    Type: Application
    Filed: April 4, 2011
    Publication date: July 28, 2011
    Inventors: Harold Dean Brannon, William Dale Wood, Randall Edgeman, Allan Ray Rickards, Christopher John Stephenson, Doug Walser, Mark Malone
  • Method of treating subterranean formations using mixed density proppants or sequential proppant stages
    Patent number: 7918277
    Abstract: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: April 5, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Harold Dean Brannon, William Dale Wood, Randall Edgeman, Allan Ray Rickards, Christopher John Stephenson, Doug Walser, Mark Malone
  • Method of Treating Subterranean Formations Using Mixed Density Proppants or Sequential Proppant Stages
    Publication number: 20090107674
    Abstract: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.
    Type: Application
    Filed: December 31, 2008
    Publication date: April 30, 2009
    Inventors: Harold Dean Brannon, William Dale Wood, Randall Edgeman, Allan Ray Richards, Christopher John Stephenson, Doug Walser, Mark Malone
  • Method of treating subterranean formations using mixed density proppants or sequential proppant stages
    Patent number: 7472751
    Abstract: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: January 6, 2009
    Assignee: BJ Services Company
    Inventors: Harold Dean Brannon, William Dale Wood, Randall Edgeman, Allan Ray Rickards, Christopher John Stephenson, Doug Walser, Mark Malone
  • Method of treating subterranean formations using mixed density proppants or sequential proppant stages
    Publication number: 20080032898
    Abstract: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.
    Type: Application
    Filed: February 20, 2007
    Publication date: February 7, 2008
    Inventors: Harold Brannon, William Wood, Randall Edgeman, Allan Rickards, Christopher Stephenson, Doug Walser, Mark Malone
  • Method of treatment subterranean formations using multiple proppant stages or mixed proppants
    Patent number: 7210528
    Abstract: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: May 1, 2007
    Assignee: BJ Services Company
    Inventors: Harold Dean Brannon, William Dale Wood, Randall Edgeman, Allan Ray Rickards, Christopher John Stephenson, Doug Walser, Mark Malone