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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 12735970 B1

PDFFull Text
Date of Patent:
Sep. 15, 2026

Filed:

Jan. 26, 2026

Well pattern arrangement method for in-situ leaching of low-permeability sandstone-type uranium deposit

Applicant:

Shijiazhuang Tiedao University, Shijiazhuang, CN;

Inventors:

Qinghe Niu, Shijiazhuang, CN;

Jiangfang Chang, Shijiazhuang, CN;

Wei Wang, Shijiazhuang, CN;

Wei Yuan, Shijiazhuang, CN;

Yongxiang Zheng, Shijiazhuang, CN;

Meng Wang, Shijiazhuang, CN;

Songhua Shang, Shijiazhuang, CN;

Assignee:

Shijiazhuang Tiedao University, Shijiazhuang, CN;

Attorney:
Primary Examiner:

Yong-Suk (Philip) Ro

Int. Cl.
CPC ...
E21B 43/30 (2006.01); E21B 43/263 (2006.01);
U.S. Cl.
CPC ...
E21B 43/30 (2013.01); E21B 43/263 (2013.01); E21B 2200/20 (2020.05);
Abstract

A well pattern arrangement method for in-situ leaching (ISL) of a low-permeability sandstone-type uranium deposit includes the steps of: performing a geological survey of a target area to delineate a spatial distribution of an ore-bearing layer; arranging horseshoe-shaped horizontal wells based on a horizontal extent of a main ore layer; conducting permeability enhancement by lowering and detonating explosives within the horseshoe-shaped horizontal wells; determining a spacing between the horizontal wells and intervals for explosive placement according to a blast-induced fracturing radius; performing well flushing on the horizontal wells; arranging vertical wells between the horizontal wells, where the horizontal wells are configured for leaching solution injection and the vertical wells are configured for pregnant leach solution (PLS) extraction; and optimizing a spacing between the vertical wells to maximize leaching coverage.

Find Patent Forward Citations

Niu, Qinghe. (2026). Well pattern arrangement method for in-situ leaching of low-permeability sandstone-type uranium deposit (U.S. Patent No. 12735970). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12735970

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