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:
Mar. 13, 2007
Filed:
Feb. 13, 2004
Terrance Dean Maxwell, Leduc, CA;
Julio Garcia, Edmonton, CA;
Nestor Humberto Gil, Edmonton, CA;
Bryan James Restau, Beaumont, CA;
Richard T. Hay, St. Albert, CA;
Edward James Cargill, Devon, CA;
Terrance Dean Maxwell, Leduc, CA;
Julio Garcia, Edmonton, CA;
Nestor Humberto Gil, Edmonton, CA;
Bryan James Restau, Beaumont, CA;
Richard T. Hay, St. Albert, CA;
Edward James Cargill, Devon, CA;
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A variable gauge drilling apparatus and a method for assembling a variable gauge drilling apparatus for insertion in a subject borehole. The variable gauge drilling apparatus includes: an apparatus housing having a housing size which is suitable for insertion in a subject borehole which has a subject borehole size within a design range of borehole sizes; a plurality of interchangeable borehole engaging devices having different device sizes for mounting on the apparatus housing to provide the drilling apparatus with a drilling apparatus size within a range of drilling apparatus sizes, wherein the range of drilling apparatus sizes is compatible for use of the drilling apparatus within the design range of borehole sizes; and a universal borehole engaging device mount located on the apparatus housing, wherein the mount is configured to accept for mounting any one of the plurality of interchangeable borehole engaging devices.