Open AccessModeling of the stress-strain state at the Shtokman gas condensate field accounting its block structure
Author(s) -
А. И. Калашник,
N A Kalashnik
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2094/2/022015
Subject(s) - geology , rock mass classification , fault (geology) , tectonics , stress (linguistics) , displacement (psychology) , magnetic dip , roof , stress field , fault block , block (permutation group theory) , overburden pressure , stress–strain curve , stiffness , geotechnical engineering , seismology , geophysics , deformation (meteorology) , geometry , finite element method , structural engineering , engineering , psychology , linguistics , philosophy , oceanography , mathematics , psychotherapist
The stress-strain state of the Shtokman gas condensate field has been studied using mathematical modeling and accounting its block structure. It is assumed that the rock mass’s structure has a vertical block structure, which is under the influence of gravity and tectonic force fields. It has been revealed that the stress-strain state of the rocks depends essentially on relationships of initial operating efforts and in-situ gas pressure, which magnitude varies with its production; direction of the maximum forces and dip of angles of fault zones; and elastic characteristics of the main rock mass and fault zones. It has been established that the change in the dip of angle of fault zones and reducing the rocks’ stiffness increases tensile stress in the roof of a horizontal seam and near the sea bottom. A forecast assessment has been performed of the vertical displacement of a rock block contoured with faults relatively to the main rock mass.