Construction of 3D geological and in-situ stress model of coal roof based on Petrel

LIU Tongqing; SONG Yulong; MOU Yi; HUANG Tao; RU Liang; ZHOU Shaohui; CAO Feng; MENG Guoqiang

Safety in Coal Mines > 2023 > 54(5): 100-105.

LIU Tongqing, SONG Yulong, MOU Yi, HUANG Tao, RU Liang, ZHOU Shaohui, CAO Feng, MENG Guoqiang. Construction of 3D geological and in-situ stress model of coal roof based on Petrel[J]. Safety in Coal Mines, 2023, 54(5): 100-105.

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Construction of 3D geological and in-situ stress model of coal roof based on Petrel

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Published Date: May 19, 2023

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Abstract

The simulation of the initial stress field of coal rock generally generalizes the coal seam, roof and floor and overlying rock layer into isotropic plates, and the stress field simulation of the entire wellfield scale has certain limitations if this method is adopted. In order to accurately construct the coal and rock physical property parameters model under complex geological conditions, the 3D model that conforms to the fluctuation of coal seam was constructed by using Petrel software platform, well point data interpolation, seismic data liaison control, well logging data calculation and laboratory test data correction. The bending energy index of the coal seam roof in the study area is calculated, the bursting liability of the roof is preliminarily evaluated, and the roof is divided according to the evaluation criteria.

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Construction of 3D geological and in-situ stress model of coal roof based on Petrel

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