REASONING THE USE OF ELECTROMAGNETIC SCANNING THE OIL-SATURATED SEAM BY BOREHOLE ANTENNAS ARRAY
A. P. Khmelinin, A. I. Konurin, M. I. Konurina
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Hydraulic fracturing, microseismic monitoring, fased antenna array, Butler matrix, borehole probe, electrical scanning
Abstract
An overview of methods for mapping disturbances in a rock mass is given on the example of determining systems of hydraulic fractures in an oil-saturated reservoir. Methods of passive and active microseismic monitoring, as well as electromagnetic methods for examining rock massifs for the presence of inhomogeneities in it are considered. A promising option for the development of hydraulic fracture mapping systems is proposed - the creation of borehole probes, which are a ground penetrating radar that implements the mode of electrical scanning of the studied massif. The calculation of the antenna array of the borehole design based on the Butler matrix is performed. The calculated parameters of a phased array antenna with a Butler matrix can be used to design a downhole probe for mapping hydraulic fractures, as well as to perform a survey of engineering structures, for example, building foundations.
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