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Место гравиразведки в комплексе геологоразведочных работ при решении задач поиска нефти и газа

Место гравиразведки в комплексе геологоразведочных работ при решении задач поиска нефти и газа

Abstract

The efficiency analysis of leading technologies interpretation of gravity data in solving problems of constructing models of the geological environment has been conducted. Up-to-date technologies and methods for environment modeling are mostly based on the correlation analysis of seismic and gravity data. The discrepancy between the model built on such techniques and the observed field is obvious, which is related to the fact that the correlation and statistical relationship between the gravitational field and geological boundary (density) does not reflect the physical nature of the geological environment. It is shown that while interpreting the geophysical data the information contained in a gravitational field is not fully utilized. The conclusion is that they do not allow to efficiently solve the problem of studying complex structures such as sedimentary basins in the conditions of fragmentary data. In this context we need to develop a specialized technique based on the solution of inverse problems in this situation. The involvement in the process of inverse problems solution of geophysical methods will allow to provide meaningful results.

Проведён анализ эффективности ведущих технологий интерпретации гравиметрических данных при решении задач построения моделей геологических сред. Используемые сегодня технологии и методики для построения моделей среды в большинстве своём основаны на корреляционном анализе сейсмогравиметрических данных. Выявлено несоответствие построенной по таким методикам модели наблюдаемому полю, что связано с тем, что корреляционно-статистические связи между гравитационным полем и геологической границей (плотностью) не отражают физической природы геологической среды. Показано, что при интерпретации геофизических данных не в полной мере используется информация, содержащаяся в гравитационном поле. Сделан вывод о том, что они не позволяют качественно решать задачу изучения сложнопостроенных образований типа осадочных бассейнов в условиях фрагментарности данных. В этой связи необходимо развитие специализированной методики, основанной на решении обратных задач в этой ситуации с вовлечением комплекса геофизических методов.

Keywords

ГРАВИРАЗВЕДКА, СЛОЖНОПОСТРОЕННЫЕ СРЕДЫ, ГЕОЛОГО-ГЕОФИЗИЧЕСКИЕ МОДЕЛИ, ГЕОФИЗИЧЕСКИЕ МЕТОДЫ, ОБРАТНЫЕ ЗАДАЧИ, КРИТЕРИАЛЬНЫЙ ПОДХОД

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold