Patents by Inventor Antony Stephen Aldridge

Antony Stephen Aldridge 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).

  • DOWN-HOLE PLACEMENT OF WATER-SWELLABLE POLYMERS
    Publication number: 20130000900
    Abstract: Methods and fluids are provided for the placement of a water-swellable polymer into a subterranean formation. The methods and fluids include a placement fluid that has an acidic aqueous phase. The water-swellable polymer does not substantially swell in the acidic aqueous phase. The acid is allowed or caused to be spent downhole, whereby the water-swellable polymer can then swell in the formation. In an embodiment, an oil-external emulsion having an internal acidic water phase is provided for placement of a water-swellable polymer into a subterranean formation. Preferably, the oil-external emulsion is adapted to break as the acid contained in the internal water phase is allowed or caused to be spent downhole.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 3, 2013
    Inventors: Rajendra A. Kalgaonkar, Anupom Sabhapondit, Antony Stephen Aldridge