Patents by Inventor Terence Robert Morrell

Terence Robert Morrell 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).

  • Through-tubing lateral re-entry
    Patent number: 6029747
    Abstract: A method for allowing entry of an existing lateral offshoot from a main borehole, without removal of downstream completion tubing from the mai the use of both a liner (14) and a whipstock (28) inserted through the completion tubing (10) to a position within the liner (14), characterized in that an intermediate device (18) has been provided which, in use, is located between the liner (14) and the whipstock (28) so that the whipstock (28) merely needs to locate with the intermediate device (18) rather than the liner (14), the intermediate device (18) preferably having a passageway extending linearly therethrough, and the whipstock (28) preferably being provided with locator keys which are of different profile for different intermediate devices (18).
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: February 29, 2000
    Assignee: Tuboscope I/P Inc.
    Inventors: Terence Robert Morrell, Robert Martin Norris