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:
Oct. 26, 2021

Filed:

Mar. 31, 2017
Applicant:

Metrol Technology Ltd, Aberdeen, GB;

Inventors:

Steven Martin Hudson, Aberdeen, GB;

Leslie David Jarvis, Aberdeen, GB;

Axel May, Aberdeen, GB;

Assignee:

METROL TECHNOLOGY LTD., Aberdeenshire, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/13 (2012.01); E21B 41/00 (2006.01); E21B 17/00 (2006.01); E21B 17/02 (2006.01); E21B 17/10 (2006.01); E21B 47/00 (2012.01); E21B 36/04 (2006.01); E21B 33/13 (2006.01); H04B 7/155 (2006.01); E21B 33/134 (2006.01);
U.S. Cl.
CPC ...
E21B 41/0085 (2013.01); E21B 17/003 (2013.01); E21B 17/028 (2013.01); E21B 17/1078 (2013.01); E21B 33/13 (2013.01); E21B 36/04 (2013.01); E21B 47/00 (2013.01); E21B 47/13 (2020.05); H04B 7/155 (2013.01); E21B 33/134 (2013.01);
Abstract

A monitoring well installation comprising metallic casing () running down from the surface into a borehole and a sealing material plug () provided downhole for blocking the interior of the casing and sealing the borehole against the egress of fluid from a zone below the plug. There is an axial spacing (A) between adjacent casing portions () in the region of the plug () such that there is an uncased length of borehole in which the material of the plug seals against the formation. There is provided a sensing tool () located below the plug () for sensing at least one parameter below the plug () and a communication arrangement () for use in transmitting data from the sensing tool () towards the surface. The communication arrangement comprises across plug communication apparatus () for facilitating transmission of signals carrying data across the plug () towards the surface.


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