Patents Assigned to Chemergy Ltd.
  • Patent number: 7399732
    Abstract: An improved method and fracturing fluid for hydraulic fracturing of a subterranean formation, the fracturing fluid including a surfactant, a water soluble or dispersible anionic organic salt, an acid and a low molecular weight organic solvent.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: July 15, 2008
    Assignees: Calfrac Well Services Ltd., Chemergy Ltd.
    Inventors: Travis L. Allan, Junad Amin, Alan K. Olson, Ronald G. Pierce
  • Patent number: 6844297
    Abstract: An improved method and fracturing fluid for hydraulic fracturing of a subterranean formation, the fracturing fluid comprising a surfactant, a water soluble or dispersible anionic organic salt, an acid and a low molecular weight organic solvent.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: January 18, 2005
    Assignees: Calfrac Well Services Ltd., Chemergy Ltd.
    Inventors: Travis L. Allan, Junad Amin, Alan K. Olson, Ronald G. Pierce
  • Patent number: 6838418
    Abstract: There is described a fracturing fluid comprising a polar base, 0.1-5.0% of a mid-molecular weight polyacrylate, and an activator for ionizing the polyacrylate to a hydroscopic state.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: January 4, 2005
    Assignees: Calfrac Well Services Ltd., Chemergy Ltd.
    Inventors: Travis L. Allan, Junad Amin, Alan K. Olson, Ronald G. Pierce, Dwight M. Bobier
  • Patent number: 6387569
    Abstract: An electric storage battery having a solid phase Fe(VI) salt cathode. The anode may be any of a large variety of conventional anode materials capable of being oxidized. The cathode and anode are located in separate half-cells which are in electrochemical contact through an electrically neutral ionic conductor. Small material additions to the Fe(VI) salt containing half cell can be used to control the conductance and electrochemical characteristics of the battery.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: May 14, 2002
    Assignee: Chemergy Ltd.
    Inventor: Stuart Licht
  • Patent number: 6033343
    Abstract: An electric storage battery having a solid phase Fe(VI) salt cathode. The anode may be any of a large variety of conventional anode materials capable of being oxidized. The cathode and anode are located in separate half-cells which are in electrochemcial contact trough an electrically neutral ionic conductor. Optionally means may be provided for impeding the transfer of chemically reactive species between the two half-cells. Also optionally gas separator means may be provided for preventing the build-up of oxygen, hydrogen and other gases.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: March 7, 2000
    Assignee: Chemergy Ltd.
    Inventor: Stuart Licht