Patents by Inventor Rahul Chamdrakant Patil

Rahul Chamdrakant Patil 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).

  • Alkyl polyglycoside derivative as biodegradable spacer surfactant
    Patent number: 9796901
    Abstract: A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: October 24, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ramesh Muthusamy, Abhimanyu Pramod Deshpande, Rahul Chamdrakant Patil, Sandip Prabhakar Patil
  • Alkyl Polyglycoside Derivative As Biodegradable Spacer Surfactant
    Publication number: 20150080272
    Abstract: A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well.
    Type: Application
    Filed: July 21, 2014
    Publication date: March 19, 2015
    Inventors: Ramesh Muthusamy, Abhimanyu Pramod Deshpande, Rahul Chamdrakant Patil, Sandip Prabhakar Patil