Patents by Inventor Keith A. Rutkowski

Keith A. Rutkowski 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).

  • METHOD OF USING MULTI-COMPONENT FIBERS AS LOST-CIRCULATION MATERIAL
    Publication number: 20130284518
    Abstract: A method of forming a subterranean well and a method of reducing lost circulation in a subterranean well while drilling the subterranean well are disclosed. The methods include using multi-component fibers as lost-circulation materials. The multi-component fibers having external surfaces and include at least a first polymeric composition and a second polymeric composition. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition, which at least partially adhesively bonds the mud cake formed during the method.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 31, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yong K. Wu, Keith A. Rutkowski, Clara E. Mata, Ignatius A. Kadoma, Michael D. Crandall