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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 10711587 B1

PDFFull Text
Date of Patent:
Jul. 14, 2020

Filed:

Aug. 24, 2016

Oxidizing agent injection equipment for underground coal gasification process and application thereof

Applicant:

Zhongwei (Shanghai) Energy Technology Co. Ltd, Shanghai, CN;

Inventors:

Casper Jan Hendrik Burger, Shanghai, CN;

Zhenhua Min, Shanghai, CN;

Yuanli Wang, Shanghai, CN;

Assignee:

ZHONGWEI (SHANGHAI) ENERGY TECHNOLOGY CO. LTD, Shanghai, CN;

Attorney:

Dunlap, Bennett & Ludwig, PLLC

Primary Examiner:

Zakiya W Bates

Int. Cl.
CPC ...
E21B 43/295 (2006.01); E21B 43/16 (2006.01); E21B 43/243 (2006.01);
U.S. Cl.
CPC ...
E21B 43/295 (2013.01); E21B 43/164 (2013.01); E21B 43/166 (2013.01); E21B 43/168 (2013.01);
Abstract

An oxidant injection device for an underground coal gasification process includes an oxidant pathway which includes a swivel joint, coiled tubing, and a mechanical shear-off device which are in gas tight connection with each other in that sequence. Attached to the mechanical shear-off device is an oxidant nozzle, wherein the shear-off device is adapted to shear the oxidant nozzle to allow retraction of the coiled tubing when necessary, and wherein the swivel joint causes the surface oxidant source to be in gas tight connection with the coiled tubing reel center shaft, thereby allowing continuous oxidant injection during the process of moving the oxidant nozzle via the movement of the coiled tubing when rotating the coiled tubing reel.

Find Patent Forward Citations

Burger, Casper Jan Hendrik. (2020). Oxidizing agent injection equipment for underground coal gasification process and application thereof (U.S. Patent No. 10711587). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10711587

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