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:
Sep. 18, 2018
Filed:
Nov. 07, 2013
Applicant:
Petrowell Limited, Aberdeen, GB;
Inventors:
Assignee:
PETROWELL LIMITED, Aberdeen, Aberdeenshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 34/00 (2006.01); E21B 34/02 (2006.01); E21B 23/04 (2006.01); E21B 34/10 (2006.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
E21B 34/02 (2013.01); E21B 23/04 (2013.01); E21B 34/10 (2013.01); E21B 34/103 (2013.01); E21B 41/00 (2013.01); E21B 2034/007 (2013.01);
Abstract
An activation apparatus () for activating a downhole tool comprising a top sub (), a bottom sub (), an outer sleeve () having a port () and an inner sleeve () having a port (). The apparatus () is configurable between a run-in configuration in which the ports () are not aligned and an activated configuration in which the ports () are aligned and permit lateral passage of fluid through the apparatus (), the activation apparatus () being configured such that application of at least two forces to the activation apparatus () transitions the activation apparatus () from the run-in configuration to the activated configuration.