Patents by Inventor Chengil Dong

Chengil Dong 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).

  • Methods for characterizing asphaltene instability in reservoir fluids
    Patent number: 9255475
    Abstract: A methodology for reservoir understanding that performs investigation of asphaltene instability as a function of location in a reservoir of interest. In the preferred embodiment, results derived as part of the investigation of asphaltene instability are used as a workflow decision point for selectively performing additional analysis of reservoir fluids. The additional analysis of reservoir fluids can verify the presence of asphaltene flocculation onset conditions and/or determine the presence and location of phase-separated bitumen in the reservoir of interest.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: February 9, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Youxiang Zuo, Oliver C. Mullins, Chengil Dong, Denise Freed, Andrew Pomerantz, Eric Lehne, Dingan Zhang