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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.:

US 10240420 B1

PDFFull Text
Date of Patent:
Mar. 26, 2019

Filed:

Dec. 15, 2015

Method for recovering tubular structures from a well and a downhole tool string

Applicant:

Qinterra Technologies As, Stavanger, NO;

Inventor:

Georges Emile Arnaly, Abu Dhabi, AE;

Assignee:

Qinterra Technologies AS, Stavanger, NO;

Attorney:

Gable Gotwals

Primary Examiner:

Robert E Fuller

Assistant Examiner:

Christopher J Sebesta

Int. Cl.
CPC ...
E21B 31/00 (2006.01); E21B 29/00 (2006.01); E21B 31/16 (2006.01); E21B 23/01 (2006.01); E21B 29/02 (2006.01); E21B 29/08 (2006.01); E21B 23/00 (2006.01);
U.S. Cl.
CPC ...
E21B 31/00 (2013.01); E21B 23/01 (2013.01); E21B 29/00 (2013.01); E21B 29/002 (2013.01); E21B 29/02 (2013.01); E21B 29/08 (2013.01); E21B 31/16 (2013.01); E21B 2023/008 (2013.01);
Abstract

This invention relates to a method for recovering a tubular structure () from a well (), wherein a so-called free point is defined as the location where the tubular structure is stuck in the well. The method comprising providing a downhole tool string comprising a pipe-severing tool and an upper part of the downhole tool string; lowering the downhole tool string into the tubular structure to release the free pipe. Before the step of triggering the pipe-severing tool to sever the tubular structure, the method includes releasing the pipe-severing tool and subsequent withdrawing the upper part, of the downhole tool string away from the free point towards the surface over at least a predefined distance. The invention relates to a downhole tool string for use in such method.

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Arnaly, Georges. (2019). Method for recovering tubular structures from a well and a downhole tool string (U.S. Patent No. 10240420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10240420

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