Patents by Inventor Edwin Rooyakkers

Edwin Rooyakkers 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).

  • Method of removing a downhole casing
    Patent number: 11193343
    Abstract: Method and apparatus for removing a downhole casing from a well on a single trip. A downhole tool assembly is arranged on a work string having a downhole pull tool, a spear tool, motor unit and cutting device. The downhole pull tool is set inside a first casing string and the spear tool, motor unit and cutting device are located inside a second casing string, located through the first casing string. The downhole pull tool and spear tool can be configured to grip the respective casings during cutting of the second casing string. The cut casing section can then be pulled using the downhole pull tool to dislodge the casing section, whereupon via attachment to the spear tool, the cut casing section can be removed from the well. The assembly can be re-set at shallower depths in the event that the cut casing section cannot be dislodged for removal.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: December 7, 2021
    Assignee: ARDYNE HOLDINGS LIMITED
    Inventors: Frode Sunde, Edwin Rooyakkers, Arnstein Wathne, Steffen Hansen, Steffen Evertsen, Eirik Enerstvedt
  • Method of Removing A Downhole Casing
    Publication number: 20200347687
    Abstract: Method and apparatus for removing a downhole casing from a well on a single trip. A downhole tool assembly is arranged on a work string having a downhole pull tool, a spear tool, motor unit and cutting device. The downhole pull tool is set inside a first casing string and the spear tool, motor unit and cutting device are located inside a second casing string, located through the first casing string. The downhole pull tool and spear tool can be configured to grip the respective casings during cutting of the second casing string. The cut casing section can then be pulled using the downhole pull tool to dislodge the casing section, whereupon via attachment to the spear tool, the cut casing section can be removed from the well. The assembly can be re-set at shallower depths in the event that the cut casing section cannot be dislodged for removal.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Frode Sunde, Edwin Rooyakkers, Arnstein Wathne, Steffen Hansen, Steffen Evertsen, Eirik Enerstvedt
  • Method of removing a downhole casing
    Patent number: 10781653
    Abstract: Method and apparatus for removing a downhole casing from a well on a single trip. A downhole tool assembly is arranged on a work string having a downhole pull tool, a spear tool, motor unit and cutting device. The downhole pull tool is set inside a first casing string and the spear tool, motor unit and cutting device are located inside a second casing string, located through the first casing string. The downhole pull tool and spear tool can be configures to grip the respective casings during cutting of the second casing string. The cut casing section can then be pulled using the downhole pull tool to dislodge the casing section, whereupon via attachment to the spear tool, the cut casing section can be removed from the well. The assembly can be re-set at shallower depths in the event that the cut casing section cannot be dislodged for removal.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: September 22, 2020
    Assignee: ARDYNE HOLDINGS LIMITED
    Inventors: Frode Sunde, Edwin Rooyakkers, Arnstein Wathne, Steffen Hansen, Steffen Evertsen, Eirik Enerstvedt
  • Method of Removing A Downhole Casing
    Publication number: 20190257168
    Abstract: Method and apparatus for removing a downhole casing from a well on a single trip. A downhole tool assembly is arranged on a work string having a downhole pull tool, a spear tool, motor unit and cutting device. The downhole pull tool is set inside a first casing string and the spear tool, motor unit and cutting device are located inside a second casing string, located through the first casing string. The downhole pull tool and spear tool can be configures to grip the respective casings during cutting of the second casing string. The cut casing section can then be pulled using the downhole pull tool to dislodge the casing section, whereupon via attachment to the spear tool, the cut casing section can be removed from the well. The assembly can be re-set at shallower depths in the event that the cut casing section cannot be dislodged for removal.
    Type: Application
    Filed: November 2, 2017
    Publication date: August 22, 2019
    Inventors: Frode Sunde, Edwin Rooyakkers, Arnstein Wathne, Steffen Hansen, Steffen Evertsen, Eirik Enerstvedt