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. 15, 2005
Filed:
Feb. 18, 2003
Edward C. Kash, Sugarland, TX (US);
Edward C. Kash, Sugarland, TX (US);
Other;
Abstract
The borehole of many wells, including oil and gas production wells, is frequently cased with a steel or similar metal casing. In order to extract oil or other material existing within the surrounding geologic formation, it is necessary to puncture the casing. Currently, this is accomplished with tubes (guns) containing explosive charges being lowered into the well bore and detonated, causing the tube and well casing to be punctured and the geologic formation shattered. The guns are made from high strength, thick-walled and machined metal. This invention discloses a multi-layered or composite tube that enhances the directional orientation of the explosive charges utilizing less costly and more easily fabricated material. The invention also discloses a gun having properties to allow the desired directionally oriented perforation by the explosive charge without being deformed and jammed within the well casing. Other advantageous are also disclosed.