Patents by Inventor Ronald M. Willett

Ronald M. Willett 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 of isolating hydrajet stimulated zones
    Patent number: 7766083
    Abstract: The present invention is directed to a method of isolating hydrajet stimulated zones from subsequent well operations. The method includes the step of drilling a wellbore into the subterranean formation of interest. Next, the wellbore may or may not be cased depending upon a number of factors including the nature and structure of the subterranean formation. Next, the casing, if one is installed, and wellbore are perforated using a high pressure fluid being ejected from a hydrajetting tool. A first zone of the subterranean formation is then fractured and stimulated. Next, the first zone is temporarily plugged or partially sealed by installing an isolation fluid into the wellbore adjacent to the one or more fractures and/or in the openings thereof, so that subsequent zones can be fractured and additional well operations can be performed.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: August 3, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ronald M. Willett, Jim B. Surjaatmadja, Billy W. McDaniel, Leldon Mark Farabee, David M. Adams, Lloyd E. East
  • Methods of Isolating Hydrajet Stimulated Zones
    Publication number: 20080110622
    Abstract: The present invention is directed to a method of isolating hydrajet stimulated zones from subsequent well operations. The method includes the step of drilling a wellbore into the subterranean formation of interest. Next, the wellbore may or may not be cased depending upon a number of factors including the nature and structure of the subterranean formation. Next, the casing, if one is installed, and wellbore are perforated using a high pressure fluid being ejected from a hydrajetting tool. A first zone of the subterranean formation is then fractured and stimulated. Next, the first zone is temporarily plugged or partially sealed by installing an isolation fluid into the wellbore adjacent to the one or more fractures and/or in the openings thereof, so that subsequent zones can be fractured and additional well operations can be performed.
    Type: Application
    Filed: April 24, 2007
    Publication date: May 15, 2008
    Inventors: Ronald M. Willett, Jim B. Surjaatmadja, Billy W. McDaniel
  • Methods of isolating hydrajet stimulated zones
    Patent number: 7225869
    Abstract: The present invention is directed to a method of isolating hydrajet stimulated zones from subsequent well operations. The method includes the step of drilling a wellbore into the subterranean formation of interest. Next, the wellbore may or may not be cased depending upon a number of factors including the nature and structure of the subterranean formation. Next, the casing, if one is installed, and wellbore are perforated using a high pressure fluid being ejected from a hydrajetting tool. A first zone of the subterranean formation is then fractured and stimulated. Next, the first zone is temporarily plugged or partially sealed by installing an isolation fluid into the wellbore adjacent to the one or more fractures and/or in the openings thereof, so that subsequent zones can be fractured and additional well operations can be performed.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: June 5, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ronald M. Willett, Jim B. Surjaatmadja, Billy W. McDaniel, Leldon Mark Farabee, David M. Adams, Loyd E. East