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. 29, 2021
Filed:
May. 03, 2018
Ardyne Holdings Limited, Aberdeen Aberdeenshire, GB;
Alan Fairweather, Aberdeenshire, GB;
ARDYNE HOLDINGS LIMITED, Aberdeen, GB;
Abstract
A method and apparatus for single-trip casing cutting and pulling for well abandonment and slot recovery. Perforations () are made in the casing () at a maximum depth using a punch tool () and fluid circulated through the perforations to determine a return at surface. In the event of a return at surface being detected, the casing () is cut and pulled. When no return is detected, perforations are made at increasingly shallower depths until a return is detected and the casing () is then cut and pulled. This ensures the maximum length of casing () is cut and pulled on a single trip in the well bore ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile