Patents by Inventor Sandra E. Baranet

Sandra E. Baranet 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).

  • Stabilized fracture fluid and crosslinker therefor
    Patent number: 4780223
    Abstract: Various organometallic crosslinkers containing titanium or zirconium atoms in the +4 oxidation (valence) state have been used to crosslink solvatable polysaccharides (e.g., hydroxypropyl guar) in aqueous media. The crosslinked gels are useful as fracturing fluids. Aqueous solutions of the organometallic crosslinkers are stabilized against deterioration upon storage by adding an alkanolamine (e.g., triethanolamine). Additionally, the alkanolamines also stabilize the crosslinked gels against shear degradation at elevated temperatures.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: October 25, 1988
    Assignee: Dowell Schlumberger Incorporated
    Inventors: Sandra E. Baranet, Richard M. Hodge, Clare H. Kucera
  • Stabilized fracture fluid and crosslinker therefor
    Patent number: 4686052
    Abstract: Various organometallic crosslinkers containing titanium or zirconium atoms in the +4 oxidation (valence) state have been used to crosslink solvatable polysaccharides (e.g., hydroxypropyl guar) in aqueous media. The crosslinked gels are useful as fracturing fluids. Aqueous solutions of the organometallic crosslinkers are stabilized against deterioration upon storage by adding an alkanolamine (e.g., triethanolamine). Additionally, the alkanolamines also stabilize the crosslinked gels against shear degradation at elevated temperatures.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: August 11, 1987
    Assignee: Dowell Schlumberger Incorporated
    Inventors: Sandra E. Baranet, Richard M. Hodge, Clare H. Kucera