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:
Dec. 01, 2020
Filed:
Nov. 21, 2018
Peter Knight, Calgary, CA;
Grant George, Calgary, CA;
Curtis Ring, Calgary, CA;
Other;
Abstract
An apparatus and method for preparing a casing of a subterranean well and injecting a sealing mixture therein. The apparatus comprises an elongate body extending between top and bottom ends connectable to a wireline at the top and having a plurality of nozzles extending therethrough proximate to the bottom. A plurality of scrapers within the body each have a first retracted position and a second radially extended position engageable with the casing. A cavity is operable to contain the sealing mixture and a piston is movable therein so to eject the sealing mixture through the nozzles. The method comprises positioning the body in the well at a location to be sealed, extending the scrapers to engage with the casing, displacing the body so to scrape against the casing and retracting the scrapers. The piston is displaced so to eject the sealing mixture through the nozzles.