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:
Sep. 10, 1991
Filed:
Nov. 07, 1989
Applicant:
Inventors:
William T Engel, Arlington, TX (US);
Hector A Tamayo, Ft. Worth, TX (US);
Assignee:
Jet Research Center, Inc., Alvarado, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166297 ; 102310 ;
Abstract
A cutting tool to cut a tubular element in a well is constructed of pellets of less sensitive explosive material detonated by a pellet of a more sensitive explosive material. All the explosive material is packaged in individual packages which qualify for a lower cost, faster, safer transportation classification, but which explosive material is consolidated and assembled at a field location into a cutting tool capable of generating a sufficient force to cut the tubular element. A corresponding method is also disclosed.