Software for geomechanical simulation

UDK: 004.9:622.24.026.3
DOI: 10.24887/0028-2448-2021-7-49-52
Key words: geomechanical simulation, strain-stress state, software development, petroleum geomechanics
Authors: A.A. Lutfullin (Tatneft PJSC, RF, Almetyevsk), I.I. Girfanov (TatNIPIneft, RF, Bugulma), I.T. Usmanov (TatNIPIneft, RF, Bugulma), O.S. Sotnikov (TatNIPIneft, RF, Bugulma)

Variety of producing field conditions and engineering challenges facing oil and gas producers necessitate development and implementation of innovative solutions based on scientific advances, including geomechanics development. In view of the problems to solve, Tatneft Company has decided to develop its own software for geomechanical simulation. This software will make it possible to consider specific features of productive formations at Tatneft’s assets, to meet the requirement for improved quality of operations digitization, to provide import substitution, and to reduce possible risks of sanction restrictions.

The paper presents the first results of developing proprietary software for geomechanical simulation. The software package includes traditional 1D modeling tools, such as calculation of pore pressure and borehole stability, determining safe mud weight range, as well as a complete set of 3D modeling tools, including geological modeling tools and 3D stress-strain behavior calculation considering over-passed elastic yield. It also has an interface for changing stress-strain properties depending on temperature and pressure. The geomechanical model helps to identify the impact of changing in-situ stress state and stress-strain properties on the reservoir rock, overlying and basement rocks during the development process, as well as to establish reservoir production conditions that will eliminate any adverse effects on ultimate oil recovery. Pilot testing of the developed software is currently being underway at Tatneft’s assets to obtain feedback from the technicians who use the results of geomechanical simulation in practice.


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