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:
Jun. 25, 2019
Filed:
Aug. 19, 2018
Bisn Tec Ltd, Birchwood, Warrington, GB;
Paul Carragher, Cheshire, GB;
Leo Richards, Merseyside, GB;
BiSN Tec Ltd, Cheshire, GB;
Abstract
Apparatus, in the form of a eutectic alloy plug () and a deployment heater () are provided. The plug () and the deployment heated () are provided with means () for releasably retaining the deployment heater () within a cavity () in the plug (). The nature of the retaining means is such that once the plug () is secured in a well the heater () can be recovered without the plug (). An extraction heater (), which is also receivable within the cavity () of the plug (), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.