Electromagnetic sounding method using a transient field spatial derivation on several separations
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 电法勘探有限公司俄罗斯联邦
- Publication Date
- 2011-07-27
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
Technical field
[0001] The invention belongs to the category of electrical exploration. This method uses a controllable electromagnetic field source, which is used in the comprehensive exploration work of exploring and delineating oil and gas deposits according to the secondary change response of the rock under the action of hydrocarbon migration. It can be used for both ground exploration and ocean exploration. The use of the invention can ensure that a series of technical methods are adopted for the layered measurement of unit resistance and the measurement of indicators of the polarization excitation process of the medium, such as the polarization coefficient, time constant, and spectral relaxation width. Background technique
[0002] The currently known geoelectric exploration methods, whether based on artificial electromagnetic fields or natural electromagnetic fields, are to measure the layer-by-layer distribution of unit resistance, that is, resistivity method. These meth...