| Annotation |
It is noted that galvanic measurements of a low-frequency electric field have fundamental limitations when working in conditions of impossibility or ineffectiveness of grounding, therefore, the only way to solve such problems is the technology of contactless measurement of the electric field (BIEP). A principal physics of a method is that tangential components of strength of an electromagnetic field on both sides of a demarcation of «surface – to-air» are equal. Respectively, measuring horizontal components of an electric field over the Earth\'s surface, we thereby define the same components of an electric field in the earth at its surface. Results of the experienced and methodical works which are carried out by the author and other staff of the prospecting organization LLC “Vostokgeologiya” by method of non-contact measurements of an electric field on the drainage system of a reservoir in the period of low temperatures, snow cover and lack of galvanic grounding are given in this article. The geophysical works as method of non-contact measurements of an electric field in Transbaikalia were performed for the first time. Prerequisites of realization of electroprospecting works as method of non-contact measurements of an electric field are proved by the set geological task and existence of the corresponding electroprospecting equipment. The basis for field observations the method of non-contact measurements of an electric field is B.G. Sapozhnikov researches with the instrument ERA-MAX complex. By results of field observations in specialized programs geoelectric cuts are constructed and interpretation is carried out. During interpretation results of a method of non-contact measurements of an electric field are compared with engineering-geological data on a result of drilling operations. Thereof the engineering and geophysical section on a profile of observations is constructed. On the basis of the received results the description of the engineering-geological situation operating on an object of researches is executed. By results of works the results are summed up and the relevance of the performed research works is proved
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