Comprehensive assessment of the geological heterogeneity of reservoir systems in the process of regulating the development of oil fields
Introduction. Today, a detailed study of the geological structure of oil and gas fields is essential. The study and understanding of the geological structure can be achieved through the analysis of geological heterogeneity. This has a significant impact on the degree of involvement of the reserv...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
OOO "CNT «NanoStroitelstvo»
2024-10-01
|
| Series: | Нанотехнологии в строительстве |
| Subjects: | |
| Online Access: | https://nanobuild.ru/en_EN/journal/Nanobuild-5-2024/473-484.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Introduction. Today, a detailed study of the geological structure of oil and gas fields is essential. The study and understanding of the
geological structure can be achieved through the analysis of geological heterogeneity. This has a significant impact on the degree of
involvement of the reservoir volume in the drainage process, determines the dominant directions of filtration flows and the nature
of oil displacement in the process of formation flooding. Methods and materials. The paper presents statistical indicators of the
main reservoir characteristics – porosity, permeability, dissection, sandiness, as well as complex indicators of macro- and microheterogeneity in permeability distribution. The given characteristics allow estimating the variability of the reservoir, both by area and by
section, i.e. in the volume of the oil-and-gas bearing reservoir. Results. This paper highlights the results of a comprehensive analysis
of the micro- and macroheterogeneity of the studied object and a comparison of the identified zones with production data on
well operation. The purpose of the study is to develop, using the example of studying the UV1
formation, an algorithm for selecting
geological and technological measures, including the use of horizontal well drilling with aphron-containing drilling muds, based
on identifying geological and industrial causes of premature water cut in the extracted products, and determining the geological
factors that control the distribution of residual hydrocarbon reserves. Determining the causes of premature water cut will help not
only to eliminate premature water cut, but also to carry out work to prevent it. Conclusion. The established causes of premature
well water cuttings as a result of the analysis will allow to determine promising areas for optimizing the development system – revision of the well grid, drilling of new horizontal production and injection wells, changing operating modes, using flow-diverting
technologies, etc. Establishing the directions of fluid movement using heterogeneity analysis helps to determine the sources of
water that prematurely enters the well (bottom or injected waters). |
|---|---|
| ISSN: | 2075-8545 |