Numerous experimental and field studies have established that during the development of oil and gas fields, there are deformations of rocks that occur due to changes in reservoir pressure. It is established that with a drop in reservoir pressure, the volume of the pore space of the formation decreases due to the elastic expansion of the rock grains and an increase in compressive forces transmitted to the skeleton from the masses of the overlying rocks. As a result, there is a change in the deformation processes in the porous medium, accompanied by a decrease in its porosity and permeability, and a more significant change, compared with the porosity of the formation, is the permeability under one and the same pressure change. The manifestation of these anomalies in reservoir conditions, which cause nonlinear effects, can significantly affect the entire process of reservoir development and lead to various qualitative and quantitative discrepancies between the observed facts and the indicators that were calculated.
The paper uses the method of economic, environmental and mathematical modeling. The management methods that are most effective in terms of “environmental” and “production” criteria are selected. This selected most effective method of management is not an easy task.it is proposed to use the method of economic, environmental and mathematical modeling on a computer to solve it. The results of this simulation can be used in decision-making in the fields of ecology, health, industry medicine, investment planning, urban planning, and other areas of industry.
В статье приводятся последовательность и результаты анализа геолого-технологической информации о бурении скважин, показаны пути принятия концептуального решения по выбору наилучших типов долот и режимных параметров. При этом используется два критерия: рейсовая скорость и стоимость метра проходки с применением положений теории нечётких множеств. Результаты выполненных исследований при наличии предварительных показателей работы долота, позволяющих строить в различной степени однотипные математические модели, принимаются как базовые с возможностью развития. Однако при конкретных геологических условиях практическое применение этих моделей было затруднено вследствие специфических особенностей рассматриваемых условий, различного рода неопределенностей, неоднородности геологического разреза. Последнее обусловило необходимость расчленения геологических разрезов методами математической статистики на пачки одинаковыми категориями буримости горных пород.
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