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.

Date of Patent:
Jun. 07, 2022

Filed:

Sep. 18, 2018
Applicant:

Metrol Technology Limited, Aberdeen, GB;

Inventors:

Shaun Compton Ross, Aberdeen, GB;

Leslie David Jarvis, Stonehaven, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/06 (2006.01); E21B 34/16 (2006.01); E21B 47/12 (2012.01); E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
E21B 34/066 (2013.01); E21B 34/063 (2013.01); E21B 34/16 (2013.01); E21B 47/12 (2013.01); E21B 33/1212 (2013.01);
Abstract

A well () in a geological structure (), the well () comprising: a first casing string () and a second casing string () inside the first casing string () and defining a first inter-casing annulus () therebetween. A wirelessly controllable valve (), in the second casing string () provides fluid communication between the first inter-casing annulus () and a second casing bore (). The first or second casing string are less than 250 meters longer in length than the second or first casing string respectively and may be the same length. The distal ends of the first and second casing strings may be in a substantially impermeable formation (). A number of benefits can be realised from such an arrangement. For example, in the event of a 'blow-out', kill fluid may be introduced into the well bore without the need to drill a relief well.


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