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:
Nov. 03, 2009
Filed:
May. 24, 2007
Timothy Edward Lagrange, Rainbow, TX (US);
Dan W. Pratt, Fort Worth, TX (US);
Jeffrey Michael West, Benbrook, TX (US);
Lesley Alan Weisner, Granbury, TX (US);
Christopher Hoelscher, Arlington, TX (US);
Timothy Edward LaGrange, Rainbow, TX (US);
Dan W. Pratt, Fort Worth, TX (US);
Jeffrey Michael West, Benbrook, TX (US);
Lesley Alan Weisner, Granbury, TX (US);
Christopher Hoelscher, Arlington, TX (US);
Owen Oil Tools LP, Houston, TX (US);
Abstract
A carrier tube for use in a wellbore perforating gun has inner and outer layers selected from materials of different, comparative physical properties. The inner layer has a higher compressive strength, and the outer layer has a higher yield strength. The inner layer enables the tube to withstand wellbore compressive pressures, which may, depending upon the material selected, include relatively high pressures, while the outer layer contains any fragments of the inner layer that result upon detonation of the gun. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.