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:
Sep. 08, 2026

Filed:

May. 02, 2025
Applicant:

Protostar Group Ltd., London, GB;

Inventors:

Hammad Tariq Janjuhah, Haripur, PK;

Amin Amin, Tehran, IR;

Juerg Matter, Winchester, GB;

Assignee:

PROTOSTAR GROUP LTD., London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 41/00 (2006.01); C04B 18/08 (2006.01); C04B 18/14 (2006.01); C04B 24/02 (2006.01); C04B 28/04 (2006.01); C04B 40/02 (2006.01); E21B 33/14 (2006.01); E21B 43/16 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
E21B 41/0064 (2013.01); C04B 18/08 (2013.01); C04B 18/146 (2013.01); C04B 24/023 (2013.01); C04B 28/04 (2013.01); C04B 40/0277 (2013.01); E21B 43/261 (2013.01); E21B 33/146 (2013.01); E21B 43/164 (2013.01);
Abstract

An injection well bored in a mafic and/or ultramafic rock used for carbon dioxide sequestration and a method of cementing a COinjection well are described. The injection well may include a surface casing and an injection casing placed in a drilled borehole. The injection well may have an open interval permitting fluid communication f into the mafic and/or ultramafic rock. A cured cement may be present between the mafic and/or ultramafic rock and the injection casing and may be formed from a cementitious slurry mixture containing a class G cement, fly ash, microsilica, additives, and an epoxy resin blend. An injection tubing is disposed in the interior of the injection casing, having fluid communication with the interior of the injection casing. A packer connected to the injection tubing may be present as a fluid seal within the injection casing.


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