公开(公告)号：US20240026767A1

公开(公告)日：2024-01-25

申请号：US18356889

申请日：2023-07-21

Applicant: Beijing Research Institute of CH.E. and Metall.

Inventor： Xuebin Su ,  Meifang Chen ,  Yihan Yang ,  Yufeng Cui ,  Mingtao Jia ,  Yongguo Xing ,  Weimin Que ,  Zhiming Du ,  Lixin Zhao ,  Yahui Tan ,  Zhaokun Li ,  Zhenqian Wen ,  Zhengbang Liu ,  Ying Xu ,  Chuanfei Zhang ,  Yu Feng ,  Tingting Xie ,  Ruyi Wang ,  Daye Liang

IPC: E21B43/30 ,  E21B43/28 ,  E21B47/04 ,  E21B49/00

CPC classification number: E21B43/30 ,  E21B43/28 ,  E21B47/04 ,  E21B49/00

Abstract: The present disclosure relates to a method and a system for determining a well spacing for in-situ leaching mining of a high-permeability sandstone-type uranium/copper deposit. The method includes: constructing a three-dimensional geological model of a sandstone reservoir in a mining region, constructing a spatially-discretized volume element model, a lithology model and a grade model of the sandstone reservoir, and obtaining a fused space model; adding drilling engineering in the fused space model, and setting filter parameters of a pump well and an injection well; carrying out solute particle transport simulation computation on the injection well and the pump well, computing well spacing related parameters; obtaining a current well spacing, and continuously carrying out solute particle transport simulation computation until the current well spacing exceeds a set threshold, and drawing relation curves according to a plurality of groups of well spacing related parameters, so as to determine an optimal well spacing.

公开(公告)号：US20240191608A1

公开(公告)日：2024-06-13

申请号：US18526559

申请日：2023-12-01

Applicant: Beijing Research Institute of CH.E. and Metall.

Inventor： Xuebin Su ,  Weimin Que ,  Meifang Chen ,  Yufeng Cui ,  Yihan Yang ,  Lixin Zhao ,  Wensheng Liao ,  Yongguo Xing ,  Chuanfei Zhang ,  Ying Xu ,  Zhiming Du ,  Jiandang Huo ,  Mingtao Jia ,  Zhengbang Liu ,  Zhaokun Li

IPC: E21B43/28 ,  E21B43/14

CPC classification number: E21B43/28 ,  E21B43/14

Abstract: A rapid mining method for sandstone-type uranium resources in a uranium and coal superposed area, which relates to the technical field of mining engineering is provided. The method includes: arranging a high-density adjustable well pattern in an in-situ leaching mining area; determining a length and a position of a filter located on the in-situ leaching mining area through a digital well construction technology; and in a production stage, carrying out operations such as pumping/injection centralized filtration, intensified leaching, high-intensity extraction, high-intensity injection, and change of layout of the high-density adjustable well pattern to rapidly obtain sandstone-type uranium resources in a uranium and coal superposed area. A recovery speed of the sandstone-type uranium resources can be improved, and service life of the in-situ leaching mining area can be shortened.