Forecasting Hydraulic Fracturing Results Using Information Amount Theory

Author details
  • Perm National Research Polytechnic University, Perm, Russian Federation
  • Perm National Research Polytechnic University, Perm, Russian Federation
  • China University of Petroleum (East China), Qingdao, China

Abstract

Hydraulic fracturing allows you to increase production from wells and reduce the time it takes to extract oil from reservoirs. The article examines the carbonate formations of the Perm region. Hydraulic fracturing is being actively carried out on these formations. To properly plan hydraulic fracturing, it is necessary to determine the main factors that affect oil production after hydraulic fracturing. The study used information amount theory to identify the main factors that influence the results of hydraulic fracturing. For the area considered, the main factors were: pre-frac water cut, fracture width, fracture length, pre-frac oil production rate. Having data on these parameters, it is possible to predict hydraulic fracturing with high reliability. The regression model is built by the method of multiple linear regression. To determine the group features, a statistical analysis of the key parameters was performed to draw box plots of the mean, maximum, median, quartile and minimum values for each parameters. First, we analyzed the results for all parameters. The graph show that the productivity increases with increasing the oil production rate after fracking and the fracture width, and the group B had the largest amount; therefore its production is expected to be large. The others parameters were similar in the groups A and B. The absolute deviation of the second model calculated values of the oil production rate after hydraulic fracturing from its values in the field regress from 1,287 to 0,662 compared in the first model calculated values. The relative deviation from 4.1 % in first model to 2.4 % in the second model calculated values. The results obtained will allow us to quickly predict hydraulic fracturing in new wells.

Keywords

oil reservoirhydraulic fracturinginformation amount theorywater cut

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Article information

Published
28 June 2024
Issue date
28 June 2024
Issue
Vol. 24, No. 2 (2024)
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