Rake-type exploring process method of deep mineral resource

Abstract

The invention relates to an exploring and coring mining process method of mineral resources comparatively deeply buried, in particular suitable for exploring and coring mining thin mineral resources comparatively deeply buried under a thick covering layer with a high dip angle. According to the method, branch holes are derived and drilled from a parent drilling hole, to avoid an invalid drilling working amount that the drilling hole group repeatedly penetrates the covering layer from the ground, therefore, an effective distance between a drilling starting point and the mine is closer and the exploring footage is greatly reduced; a ''true / false'' exploring result among critical holes of a high-angle objective is avoided. The method is a rake-type drilling exploring method which realizes multiple branches on a main, greatly shortens the exploring cycle, reduces the exploring cost and greatly reduces an influence of a mud pit pollution on the environment, and brings considerable social environmental-friendly benefits and economic benefits in the exploration of the deep resource.

Description

Technical field [0001] The method relates to the exploration and drilling technology of deeply buried mineral resources, and is especially suitable for the exploration and coring of thin and multi-layered ore layers, dykes, and vein-type mineral resources with deep buried depths and high dip angles. Background technique [0002] In today's energy-saving, green, environmentally-friendly and sustainable development, human survival and development are completely dependent on earth resources. It can be said that the history of human civilization development is a history of utilizing and developing earth resources. At this stage, with the shortage of global resources and the improvement of mining technology capabilities, people are turning their attention to the deep resources of the earth. my country has taken the expansion of deep mineral exploration as a national policy at the present stage, relying on scientific and technological innovation to promote deep ore prospecting wor...

AI Technical Summary

Problems solved by technology

[0004] When the buried depth of the ore body (vein) is relatively shallow, the traditional vertical drilling method is used to carry out the multi-stage exploration of general, general, detailed, detailed, and supplementary exploration by using the traditional vertical drilling method. Long construction period and high drilling cost

In the implementation of exploration, with the increase of drilling depth, the cost of drilling operations will increase exponentially, and the shallow geological conditions are complex and unstable, and drilling exploration accidents such as hole collapse are prone to occur. The one-time master hole cementing method solves the problem of porous duplication Problems that need to be resolved, while non-directional drilling will also produce more inaccurate results, blind hole drilling (drilling holes that do not see the ore body target layer) is common

Before getting enough details of the ore body, it is usually necessary to carry out multiple dense hole group vertical drilling, and the depth of single hole drilling can reach hundreds to kilometers. There is simply no comparable value for rock properties and drilling costs will skyrocket

And for some ore bodies with high dip angle and thin layer, the effect of vertical drilling method will be greatly reduced

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