Determination of Unfrozen Water Content in Frozen Soils by The Acoustic Method

Summary The transient electromagnetic method in the near field zone in shallow mode (sTEM) has established itself as an effective method for mapping aquifers in the territory of Yakutia. This is well known that in this region permafrost rocks can negatively affect the water availability of reservoirs developed in the upper part of the section. To map of the permafrost distribution and the position of water-bearing reservoirs the sTEM survey was carried out, capable of studying the geoelectric structure of the section to depths of 500 m. The relevance of the study is due to lack of technical water for reservoir pressure maintenance in the botuobinsky horizon. The waterbearing reservoirs prediction approach is based on a comprehensive analysis of geological and geophysical data (seismic, electromagnetic, drilling data and geophysical studies in wells), allows you to recommend areas of well location for technical water supply, to predict the intervals of possible geohazards during drilling.