The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2000
Filed:
Jan. 18, 1998
Douglas G Durst, Katy, TX (US);
Robert E Robertson, Tomball, TX (US);
Thurman B Carter, Houston, TX (US);
Paul J Johantges, Deer Park, TX (US);
Charles W Pleasants, Cypress, TX (US);
William A Blizzard, Jr, Houston, TX (US);
Dale E Langford, Lafayette, LA (US);
Guy L McClung, III, Spring, TX (US);
Other;
Abstract
Wellbore apparatus has been invented that includes a whipstock with a top and a bottom, the whipstock disposed in a wellbore extending down from an earth surface into the earth, the wellbore having an inner surface, a mill guide with a body having an upper end, a lower end, and a channel therethrough from the upper end to the lower end, and a portion of the lower end of the mill guide disposed between and held between the inner surface of the wellbore and an outer surface of the top of the whipstock. A method for stabilizing a mill guide in a wellbore extending from an earth surface into the earth has been invented, the wellbore having an inner surface, the method including setting a whipstock at a location in the wellbore, the whipstock having a top and a bottom, moving a mill guide down into the wellbore to contact the whipstock, the mill guide having a body with an upper end, a lower end, and a channel therethrough from the upper end to the lower end, and positioning the mill guide so that a portion of the lower end of the mill guide is stabilizinglyconnected to and/or received and held between the inner surface of the wellbore and an outer surface of the top of the whipstock. A method has been invented for milling within a whipstock set in a wellbore extending from an earth surface down into the earth, the whipstock having a body with a top and a bottom, the method including introducing a mill guide into the wellbore above the whipstock, moving the mill guide into stabilizing contact with the whipstock, the mill guide having a top and a bottom and a channel therethrough from top to bottom, guiding a mill with the mill guide to mill down into the whipstock and through at least a longitudinal portion thereof, the mill having at least a portion thereof in contact with the mill guide while milling the at least a longitudinal portion of the whipstock.