Patents by Inventor Lan Xinwei

Lan Xinwei 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).

  • Wellbore Distributed Acoustic Sensing System Using A Mode Scrambler
    Publication number: 20180284304
    Abstract: A wellbore distributed acoustic sensing system can include a mode scrambler and a multimode circulator. The mode scrambler can be coupled to a multimode optical fiber for outputting to the multimode optical fiber a multimode optical signal generated from a single-mode optical signal. The multimode circulator can be coupled to the multimode optical fiber for routing the multimode optical signal to a distributed acoustic sensing optical fiber positioned downhole in the wellbore. The multimode circulator can further be communicatively coupled to an optical receiver for routing a backscattered multimode optical signal received from the distributed acoustic sensing optical fiber to the optical receiver.
    Type: Application
    Filed: November 17, 2016
    Publication date: October 4, 2018
    Inventors: David Barfoot, Jason Edward Therrien, Lan Xinwei, Yenny Natali Martinez