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:
Jan. 20, 2026
Filed:
Nov. 23, 2022
Archer Oiltools As, Stavanger, NO;
Arve Byberg, Klepp Stasjon, NO;
ARCHER OILTOOLS AS, Stavanger, NO;
Abstract
A spear and packer tool is arranged for being conveyed on a drill pipe string. The tool has a mandrel having a through bore, a spear anchor mechanism configured to grip a section of casing in a wellbore for removal therefrom, the spear anchor mechanism being arranged to be set by differential pressure, said spear anchor mechanism being rotational relative to the mandrel, and a packer assembly being a mechanical rotational-set retrievable packer configured to seal an annulus between the spear and packer tool and the casing. The packer assembly is arranged to be set by applying left hand rotation to the mandrel while the slips segments are engaging the casing, the packer assembly being arranged below the spear anchor mechanism. A downhole casing cutting and retrieval assembly including the spear and packer tool and a method for operating the tool and assembly are disclosed.