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Replaceable filter for in-situ leaching uranium mining drilling

A technology for in-situ leaching of uranium and filters, which is applied in the fields of mining fluids, earth-moving drilling, wellbore/well components, etc., to facilitate replacement and reduce failure rates

Inactive Publication Date: 2017-07-07
XINJIANG TIANSHAN URANIUM IND CO LTD CNNC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of well completion and filter cleaning and replacement in the in-situ leaching drilling construction process, and provide a replaceable filter for in-situ leaching uranium mining drilling

Method used

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  • Replaceable filter for in-situ leaching uranium mining drilling
  • Replaceable filter for in-situ leaching uranium mining drilling
  • Replaceable filter for in-situ leaching uranium mining drilling

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 and figure 2 As shown, a replaceable filter for in-situ leaching uranium drilling, including a guide head 1, an upper sealing sand stop back rubber tube 2, an upper adjustment pipe collar 3, a lower sand sealing back stop rubber tube 4, and a lower adjustment tube Hoop 5, connecting pipe 6, upper reducing pipe hoop 7, filter pipe 8, filter ring frame 9, lower reducing pipe hoop 10, suspension snap ring 11, sand settling pipe 12 and anchoring head 13.

[0020] The pilot head 1 is ring-shaped as a whole, with a stepped cross-section. The outer diameter of the upper part is larger than the outer diameter of the lower part. With external thread. The upper sand-sealing anti-retreat rubber cylinder 2 has a circular shape as a whole, and its outer diameter gradually decreases from top to bottom. The upper sealing sand anti-retreat ...

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Abstract

The invention belongs to the technical field of in-situ leaching uranium mining and particularly relates to a replaceable filter for in-situ leaching uranium mining drilling to solve the cleaning and replacing problems of a well completion filter and a latter filter in an in-situ leaching drilling construction process. The replaceable filter is characterized by comprising a righting head, an upper sand-closed retaining rubber drum, an upper adjustment pipe hoop, a lower sand-closed retaining rubber drum, a lower adjustment pipe hoop, a connecting pipe, an upper reducing pipe hoop, a filtering pipe, a filter annular skeleton, a lower reducing pipe hoop, a suspension clamp ring, a sand setting pipe and an anchoring head. The replaceable filter has the characteristic of convenient replacement, and the filter can be rapidly and conveniently pulled out from a drilling hole to be cleaned or repaired or directly replaced when needing to be cleaned or failing so that the in-situ leaching drilling hole can keep a normal working state at any time. The replaceable filter is already applied to scientific research and production work of the Tianshan Uranium Industry Company, the failure rate of the in-situ leaching drilling hole is greatly decreased, and carrying-out of in-situ leaching uranium mining work is facilitated.

Description

technical field [0001] The invention belongs to the technical field of uranium mining by in-situ leaching, and in particular relates to a drill-hole replaceable filter for in-situ leaching uranium mining. Background technique [0002] In-situ leaching mining of sandstone-type uranium deposits is a uranium mining process in which a leaching solution is injected into the ore layer through a borehole, and a uranium-containing solution is formed through a chemical reaction between the ore layer and the ore, which migrates to the pumping hole, and is finally pumped to the surface for extraction. In-situ leaching drilling is one of the key underground projects in this process. Well-forming technology and drilling quality have an important impact on the amount of drilling water and the migration of leaching solution in the ore seam. After more than 20 years of development, my country's in-situ leaching uranium mining technology has become an important technical process for uranium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/08E21B23/01
CPCE21B43/086E21B23/01
Inventor 王旨儒周义朋张勇易志刚杨正伟吉宏斌陈梅芳贾新玉
Owner XINJIANG TIANSHAN URANIUM IND CO LTD CNNC
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