Neftyanaya Provintsiya
electronic peer-reviewed scholarly publication
Neftyanaya provintsiya No.3(31),2022

Reinterpretation of the minimum horizontal stress profile, considering changes in the pore-stress component of reservoir mechanical stresses

I.G. Fattakhov, A.V. Kochetkov, R.R. Stepanova, F.A. Ikhsanova


The purpose of the work is to refine the initial construction of the minimum horizontal stress curve, considering the current pore pressure. Pore pressure is found in basic calculation equations, but published sources lack of a method for converting scalar values of pore pressure into a curve to build a geomechanical model as part of the input data of the hydraulic fracturing simulator.
The scientific novelty of the work lies in the construction of a pore pressure curve based on scalar quantities for use as input data for the hydraulic fracturing simulator. For the first time, a combined method was applied, including refinement of the components of the minimum horizontal stress equation using both the Bio constant and the tectonic influence coefficient, and the conversion of pore pressure data into a curve. As a result, we obtained a calculation method that allows us to obtain refined fracture simulator input data based on a standard data set.

Key words:

fracturing, geomechanics, minimum horizontal stress, fracture planning, fracture risks, pore pressure, fracture height prediction, Bio constant, Eaton's equation, fracture model calibration


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I.G. Fattakhov, Dr.Sc., Assistant Professor, Head of IOR Operations, Workover and IOR Department, PJSC TATNEFT
75, Lenin st., Almetyevsk, 423450, Russian Federation

A.V. Kochetkov, Master in Petroleum Engineering, Chief Specialist, Hydraulic Fracturing Division. Field Development Department, JV Tatneft-Dobycha PJSC TATNEFT
88, Telman st., Almetyevsk, 423450, Russian Federation

R.R. Stepanova, PhD, Associate Professor, Department of Humanities and Social Economics, Ufa State Petroleum Technological University, Oktyabrsky Branch
54 a, Devonskaya st., Oktyabrsky, 452607, Russian Federation

F.A. Ikhsanova, PhD, Associate Professor, Department of Information Technologies, Mathematics and Natural Sciences, Ufa State Petroleum Technological University, Oktyabrsky Branch
54 a, Devonskaya st., Oktyabrsky, 452607, Russian Federation

For citation:

.G. Fattakhov, A.V. Kochetkov, R.R. Stepanova, F.A. Ikhsanova Pereinterpretacija profilja minimal'nogo gorizontal'nogo naprjazhenija s uchetom izmenenija porouprogoj komponenty mehanicheskih naprjazhenij plasta [Reinterpretation of the minimum horizontal stress profile, considering changes in the pore-stress component of reservoir mechanical stresses]. Neftyanaya Provintsiya, No. 3(31), 2022. pp. 79-90. DOI EDN DXSJBV (in Russian)

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