DETERMINATION OF PARAMETERS OF BOTTOMHOLE FRACTURE PART OF FRACTURE WITH USE OF ELECTROMAGNETIC WELDING OF BOTTOMHOLE FRACTURE PART OF FRACTURE FILLED WITH CONDUCTIVE PROPPANT Russian patent published in 2018 - IPC E21B43/267 G01V3/08 

FIELD: mining.

SUBSTANCE: invention relates to downhole systems for the production of various fluids, in particular for the production of fluid from a hydrocarbon containing formation using fracturing. Method for determining the parameters of the bottomhole portion of a fracture of a formation includes steps, on which a cased well with a cemented column and with perforation clusters is provided within a predetermined fracturing zone or a well with an open barrel; then electromagnetic logging is performed prior to hydraulic fracturing of the formation; injecting into the well a fracturing fluid that does not contain a proppant, and injecting a fluid fracturing fluid containing a non-conductive proppant into the well. Thereafter, the step of pumping a fluid fracturing fluid containing an electrically conductive proppant into the well is carried out. After that, the reverse current of the fracturing fluid and the cleaning of the fracture are provided and electromagnetic logging within the predetermined fracturing zone to record the measured responses from the bottomhole fracture portion of the formation fracture and determine the parameters of the bottomhole fracture portion of the fracture.

EFFECT: technical result consists in increasing the efficiency of determining the parameters of the bottomhole fracture part of the fracture.

9 cl, 9 dwg