IMPROVEMENT OF DOWNHOLE PROBE CONTROL SYSTEM FOR THE MEASUREMENT OF HYDRAULIC FRACTURING AT CONSIDERABLE DISTANCES FROM THE WORKING CONTOUR
A. V. Leont’ev, E. V. Rubtsova, Y. M. Lekontsev
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Гидроразрыв, скважинный зонд, напорный трубопровод, гидравлический распределитель, уплотнительный элемент, деформация, герметизация, Hydraulic fracturing, downhole probe, pressure pipeline, hydraulic distributor, sealing element, deformation, sealing
Abstract
Actual issues of improving the design of the downhole probe as part of equipment for the practical implementation of the method of measuring hydraulic fracturing in mine conditions were discussed. The variants of the probe operation control schemes are presented using a single press pipeline, designed to simplify the installation of the equipment in the borehole, especially at considerable distances from the working contour. The new design map for controlling the process of probe packing is considered. Its application eliminates unstable deformation of sealing elements, in case of the well diameter increase above the nominal value, ensuring reliable sealing of the test area.
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