Patents by Inventor Petronella Theodora Maria Reijrink

Petronella Theodora Maria Reijrink 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).

  • Compositions for use in well construction, repair and/or abandonment
    Patent number: 6196316
    Abstract: Method for carrying out well construction, repair and/or abandonment operations using an addition-curing silicone formulation, in particular for forming a permanent plug in a well bore or in one or more subterranean formations penetrated by the well bore by placing a mixture of cement and an addition-curing silicone formulation in the one or more subterranean formations or in the well bore at a desired location therein or placing an addition-curing silicone formulation on top of an existing non-gas tight plug and allowing the silicone formulation to set thereby producing a gas tight plug.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: March 6, 2001
    Assignee: Shell Oil Company
    Inventors: Martin Gerard Rene Bosma, Erik Kerst Cornelissen, Paul William Edwards, Petronella Theodora Maria Reijrink