Patents by Inventor Siddhartha F. Lunkad

Siddhartha F. Lunkad 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 contacting a surface with a fluid containing a marker to determine the wettability of the surface
    Patent number: 8375773
    Abstract: Methods of determining the wettability of a surface under predetermined conditions, wherein the surface simulates or is a downhole surface for use in an oil or gas operation. The methods include the steps of: (A) contacting the surface with at least a first fluid; and then (B) observing the surface for the presence or absence of a marker to determine the wettability of the surface. According to a first aspect of the inventions, the first fluid comprises a first marker, and the step of contacting is under first predetermined conditions. This aspect also includes the additional step of contacting the surface with a second fluid comprising a second marker. According to a second aspect of the inventions, the step of contacting the surface with the first fluid is under predetermined conditions, and the surface is contacted with a second fluid comprising a second marker.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: February 19, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Siddhartha F. Lunkad, Balasundaram Balaraman, Abhimanyu Deshpande, Christopher L. Gordon
  • METHODS FOR CONTACTING A SURFACE WITH A FLUID CONTAINING A MARKER TO DETERMINE THE WETTABILITY OF THE SURFACE
    Publication number: 20110005310
    Abstract: Methods of determining the wettability of a surface under predetermined conditions, wherein the surface simulates or is a downhole surface for use in an oil or gas operation. The methods include the steps of: (A) contacting the surface with at least a first fluid; and then (B) observing the surface for the presence or absence of a marker to determine the wettability of the surface. According to a first aspect of the inventions, the first fluid comprises a first marker, and the step of contacting is under first predetermined conditions. This aspect also includes the additional step of contacting the surface with a second fluid comprising a second marker. According to a second aspect of the inventions, the step of contacting the surface with the first fluid is under predetermined conditions, and the surface is contacted with a second fluid comprising a second marker.
    Type: Application
    Filed: July 13, 2009
    Publication date: January 13, 2011
    Inventors: Siddhartha F. Lunkad, Balnsuravani Balaranza, Abhimanyu Deshpande, Christopher L. Gordon