Induced polarization deep prospecting method

An IP and deep technology, applied in the field of deep prospecting by IP, can solve the problems of decreased success rate, high background interference of deep ore bodies, shallow prospecting depth by IP, etc. ability, suppress the effect of high background interference

Active Publication Date: 2015-09-09
SINOTECH MINERALS EXPLORATION
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Problems solved by technology

[0002] IP method is the main method of metal ore prospecting in my country, but in recent years the success rate of IP method has been declining year by year
The reasons for this are mainly due to the shallow prospecting depth of the IP method (about tens of meters to hundreds of meters), which is not suitable for the needs of the main body of prospecting that has entered a depth of 500 meters to 1000 meters.
Secondly, although the IP method is the only method that can discover disseminated sulfide deposits, its advantages often also bring disadvantages, that is, the IP method is not suitable for mineralization (pyrite, carbonaceous, graphitized) that is not of industrial grade. etc.) The rock stratum also has a sensitive response
In this way, the anomalous deep ore body is disturbed by the high background caused by the shallow mineralization

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Embodiment Construction

[0023] In order to make the technical features and effects of the present invention more obvious, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings. The present invention can also be described or implemented in other different specific examples. The equivalent transformations done within all belong to the protection category of the present invention.

[0024] Such as figure 1 As shown, it is a flow chart of the IP method deep prospecting method of the embodiment of the present invention, including:

[0025] Step S10: Using the two-pole device excitation method, using a current source to supply power to the two-pole device to obtain the shallow polarizability η 1 ;

[0026] Step S20: Use a voltage source to supply power to the dipole device, adjust the ratio of the current at time T of the power supply circuit to the current at time O, so that the equation I(T) / I(0)=1-η 1 established, it can elimina...

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Abstract

The invention provides an induced polarization deep prospecting method comprising: by using a dipolar device induced polarization method, using a current source to supply power to the dipolar device in order to acquire a shallow polarizability [eta]1; and using a voltage source to supply power to the dipolar device, adjusting a ratio of T-time current to 0-time current of a power supply loop in order to enable an equation I(T) / I(0) = 1-[eta]1, eliminating the shallow polarizability [eta]1 and measuring the abnormality of deep induced-polarization body apparent polarizability. The induced polarization deep prospecting method has a deep detecting capability, inhibits shallow mineralization high background interference, and highlights the abnormality of the deep induced-polarization body.

Description

technical field [0001] The invention relates to the field of geophysical induced polarization method (Induced Polarization Method, IP) ore prospecting, in particular to a method for deep ore prospecting by the induced polarization method. Background technique [0002] IP method is the main method of metal ore prospecting in my country, but in recent years the success rate of IP method has been declining year by year. The reason for this study is that the IP prospecting depth is relatively shallow (tens of meters to hundreds of meters), which is not suitable for the prospecting body that has entered a depth of 500 meters to 1000 meters. Secondly, although the IP method is the only method that can discover disseminated sulfide deposits, its advantages often also bring disadvantages, that is, the IP method is not suitable for mineralization (pyrite, carbonaceous, graphitized) that is not of industrial grade. etc.) rock formations are also sensitively reflected. In this way, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/00
Inventor 王庆乙王生
Owner SINOTECH MINERALS EXPLORATION
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