2019-02-222019-02-222019-01-15Tour, James M., Genorio, Bostjan, Lu, Wei, Hoelscher, Katherine Price, Friedheim, James and Patel, Arvind D., "Wellbore fluids incorporating magnetic carbon nanoribbons and magnetic functionalized carbon nanoribbons and methods of using the same." Patent US10181370B2. issued 2019-01-15. Retrieved from <a href="https://hdl.handle.net/1911/105168">https://hdl.handle.net/1911/105168</a>.https://hdl.handle.net/1911/105168A wellbore fluid may include an oleaginous continuous phase, one or more magnetic carbon nanoribbons, and at least one weighting agent. A method of performing wellbore operations may include circulating a wellbore fluid comprising a magnetic carbon nanoribbon composition and a base fluid through a wellbore. A method for electrical logging of a subterranean well may include placing into the subterranean well a logging medium, wherein the logging medium comprises a non-aqueous fluid and one or more magnetic carbon nanoribbons, wherein the one or more magnetic carbon nanoribbons are present in a concentration so as to permit the electrical logging of the subterranean well; and acquiring an electrical log of the subterranean well.83engUtility patentUS10181370B2