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. 27, 2007
Filed:
Oct. 29, 2003
Richard A. Sukup, Fort Worth, TX (US);
William T. Bell, Huntsville, TX (US);
Richard A. Sukup, Fort Worth, TX (US);
William T. Bell, Huntsville, TX (US);
Other;
Abstract
The weight of a shaped charge carrier is predetermined as a buoyancy control parameter for perforating guns. Each charge carrier comprises a co-axial assembly of inner and outer carrier units. Both carrier units may be fabricated from low density metals or composite materials comprising high strength fibers in a polymer matrix. The outer carrier wall thickness may be a weight control parameter. Shaped charge units having no independent casement are formed into sockets within a light-weight inner carrier unit. Alternatively, the shaped charge units may be formed within light-weight material cases and seated within sockets in the light-weight inner carrier unit. Materials and dimensions are selected to substantially achieve the desired carrier buoyancy in the specific well fluid whereby a perforating gun assembled from a plurality of the carriers may be substantially floated into a completion position and allowed to settle along the floor or ceiling of the wellbore as predetermined by the perforation direction.