Patent Document ID: 20090166029
Application ID: 12302399
Patent Flag: 0

Claim One:
1. Method to determine the formation fracturing crack including the process of creating a fracturing crack in the borehole zone in which a portion of the fracturing fluid across the crack surface penetrates the formation producing filtrate zone around the crack; peculiar by the fact the prior to its implementation a numerical model of the fracturing fluid withdrawal from the crack and filtrate zone with the formation fluid is made up for the set formation parameters, fracturing data and supposed crack dimensions in order to calculate the change of the fracturing fluid concentration in the total production during the well post-fracturing commissioning; during the well commissioning, throughout the entire fracturing fluid ousting, period samples of the fluid produced are periodically taken from the well mouth and the fracturing fluid concentration in the samples taken iis measure, then the measurement results are compared with the model calculations and the crack length is determined based on the best match of the measurement results and the model calculations.