Development of Geological and Statistical Models for Forecasting the Confirmability of Structures in the Territory of the South of Perm Krai

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Abstract

Today, 3D seismic surveys carried out in the south of Perm Krai are increasingly focused on identifying and preparing for deep drilling local geological structures, the amplitude of which is often comparable to the accuracy of structural constructions. Based on this, there is a need to develop a new geological and statistical approach that allows assessing the risks associated with the problem of unconfirmability of prepared objects by deep drilling. Minimizing such risks would reduce the number of negative results of exploration and appraisal drilling, which would directly affect the efficiency of the oil and gas producing enterprise in the field of geological exploration for oil and gas. This article proposes one of the options for developing a geological-statistical approach to assessing the accuracy of the structural constructions of the studied area, which allows drawing conclusions about the degree of exploration of the territory under consideration. Based on the results obtained, conclusions were drawn about the correspondence of the structural plans of the reflecting horizons of the southern part of the Perm region with each other. A comparison of the obtained boundary values of discrepancies with the errors of structural constructions estimated from the results of 3D CDP seismic surveys in the south of Perm Krai. This geological and statistical approach can be used to clarify the risks associated with the problem of unconfirmation of the geological and morphological characteristics of structures.

Keywords

geological and morphological characteristicsamplitude of the structuregeological explorationconfirmability of structures by deep drillingrisk assessmentreflecting horizongeological and statistical approach

Bibliography

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Article information

Published
30 August 2024
Issue date
30 August 2024
Issue
Vol. 24, No. 3 (2024)
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