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Method for quickly positioning sandstone-type uranium mineralization by using coal field drilling information

A sandstone type, coalfield technology, applied in the field of uranium metallogenic prediction, can solve the problems of inaccurate indication of uranium mineralization, indistinguishable between true and false anomalies, loss of uranium metallogenic information, etc.

Pending Publication Date: 2021-04-30
BEIJING RES INST OF URANIUM GEOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, many key sandstone-type uranium mineralization information was lost, true and false anomalies were not distinguished, indicating inaccurate uranium mineralization

Method used

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  • Method for quickly positioning sandstone-type uranium mineralization by using coal field drilling information
  • Method for quickly positioning sandstone-type uranium mineralization by using coal field drilling information
  • Method for quickly positioning sandstone-type uranium mineralization by using coal field drilling information

Examples

Experimental program
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Effect test

Embodiment 1

[0073] Example 1 Taking the Chagan Sag in the Erlian Basin as an example, using coalfield drilling information to locate sandstone-type uranium mineralization, the specific steps are as follows:

[0074] Step (1), analyze the stratum structure in the coalfield drilling area and check the stratum color to identify the ore-bearing target stratum

[0075] There are a large number of coalfield boreholes in the Chagan Sag of the Erlian Basin, and the strata exposed by the coalfield boreholes include the Lower Cretaceous Saihan Formation and the Eocene Yierdingmanha Formation. Among them, there is a sedimentary discontinuity of about 60 Ma between the Saihan Formation and the Yirdinmanha Formation, and the Saihan Formation is a gray stratum, and the Yirdinmanha Formation is a variegated stratum.

[0076] Therefore, the Saihan Formation is determined as the ore-bearing target layer in the Chagan Sag.

[0077] Step (2), analyze the resistivity information of the ore-bearing target la...

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Abstract

The invention belongs to the technical field of uranium mineralization prediction, and particularly relates to a method for quickly positioning sandstone-type uranium mineralization by using coal field drilling information. The method comprises the following steps: analyzing the stratum structure of a coal field drilling area, checking the stratum color, and identifying an ore-bearing target stratum; analyzing resistivity information of an ore-bearing target layer, and determining a favorable deposition environment; analyzing a natural gamma logging curve in the coal field drill hole in the favorable deposition environment, and determining an oxidation-reduction transition zone; setting a soil radon gas profile in the oxidation-reduction transition zone, measuring a soil radon gas value, and positioning a uranium mineralization part; and performing drilling verification, and determining a uranium mineralization position. The method provided by the invention can accurately, efficiently and quickly position sandstone type uranium mineralization.

Description

technical field [0001] The invention belongs to the technical field of uranium mineralization prediction, and in particular relates to a method for quickly locating sandstone-type uranium mineralization by using coal field drilling information. Background technique [0002] In recent years, coal-uranium combined exploration has made great progress, forming a new coal-uranium prospecting combination mode, breaking the traditional prospecting thinking, breaking through the coalfield, petroleum and nuclear industry systems in the past. State, establish a coordinated development of various energy minerals in sedimentary basins, overall planning, multi-party cooperation, continuous improvement of ore prospecting capabilities, and major breakthroughs in energy and mineral exploration, avoiding the repeated waste of manpower, financial resources, and material resources required for exploration research. Broad prospects for energy and mineral comprehensive prospecting. [0003] How...

Claims

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Application Information

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IPC IPC(8): G01V11/00G01N33/24
CPCG01V11/00G01N33/24
Inventor 刘武生史清平张文东张梓楠
Owner BEIJING RES INST OF URANIUM GEOLOGY
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