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:
Jul. 07, 2020
Filed:
Jul. 26, 2011
Philip Duncan Church, Bexley Heath, GB;
Robert Peter Claridge, Sevenoaks, GB;
Peter John Gould, Bristol, GB;
Richard Gordon Townsley, Tonbridge, GB;
Philip Duncan Church, Bexley Heath, GB;
Robert Peter Claridge, Sevenoaks, GB;
Peter John Gould, Bristol, GB;
Richard Gordon Townsley, Tonbridge, GB;
QINETIQ LIMITED, Hampshire, GB;
Abstract
An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (), a high explosive (), and a reactive liner () where the high explosive is positioned between the reactive liner and the housing. The reactive liner () is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.