Patents by Inventor Calfrac Well Services Ltd.

Calfrac Well Services Ltd. 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).

  • Publication number: 20130153232
    Abstract: The present application is directed to an aqueous composition made up of an alkali metal silicate; a hardener containing at least one dibasic ester, at least one nonionic surfactant, at least one terpene or terpene derivative and optionally at least one polyalkylene glycol; and a retarder. The composition is useful for reducing the permeability in a subterranean formation, so as to reduce or prevent water flow and circulation loss of well fluids such as drilling fluids or cement.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 20, 2013
    Applicant: CALFRAC WELL SERVICES LTD.
    Inventor: Calfrac Well Services Ltd.
  • Publication number: 20130157904
    Abstract: The invention describes improved environmentally friendly, non-toxic, CBM friendly, green fracturing compositions, methods of preparing fracturing compositions and methods of use. Importantly, the subject invention overcomes problems in the use of water-based mists as an effective fracturing composition particularly having regard to the ability of a mist to transport an effective volume of proppant into a formation. As a result, the subject technologies provide an effective economic solution to using high ratio gas fracturing compositions that can be produced in a continuous (i.e. non-batch) process without the attendant capital and operating costs of current pure gas fracturing equipment.
    Type: Application
    Filed: February 15, 2013
    Publication date: June 20, 2013
    Applicant: CALFRAC WELL SERVICES LTD.
    Inventor: CALFRAC WELL SERVICES LTD.
  • Publication number: 20130153234
    Abstract: Described is a slickwater fracturing fluid containing base water having up to 300,000 ppm total dissolved solids; a viscosifier; a scale inhibitor; and a surfactant composition. The surfactant composition contains at least one dibasic ester, at least one non-ionic surfactant, at least one terpene or terpene derivative and optionally at least one polyalkylene glycol.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 20, 2013
    Applicant: CALFRAC WELL SERVICES LTD.
    Inventor: CALFRAC WELL SERVICES LTD.
  • Publication number: 20130137609
    Abstract: An aphron-containing fracturing fluid containing a polar fluid; a gas; a hydrocarbon fluid; a viscosifier; and a surfactant and methods for preparing the aphron-containing fracturing fluid.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 30, 2013
    Applicant: CALFRAC WELL SERVICES LTD.
    Inventor: Calfrac Well Services Ltd.
  • Publication number: 20130137611
    Abstract: Described is an additive composition made up of at least one dibasic ester, at least one non-ionic surfactant, at least one terpene or terpene derivative and optionally, at least one polyalkylene glycol and/or water. The composition is useful as an additive for well treatment fluids used for cleaning or stimulation of oil or gas wells.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 30, 2013
    Applicant: CALFRAC WELL SERVICES LTD.
    Inventor: Calfrac Well Services Ltd.