alexa 3D Geochemical Modeling With The Use Of Vertical And Horizontal Relative Concentrations Of Oil Biomarkers For The Heavy Oil Fields Development Monitoring
ISSN:2157-7463

Journal of Petroleum & Environmental Biotechnology
Open Access

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3rd International Conference and Expo on Oil and Gas
July 13-14, 2017 Berlin, Germany

Artyom Chemodanov, Akhmadullin Robert, Vladislav Sudakov and Sergey Usmanov
Kazan Federal University, Russia
Tatneft, Russia
Posters & Accepted Abstracts: J Pet Environ Biotechnol
DOI: 10.4172/2157-7463-C1-035
Abstract
Statement of the Problem: All heavy oil reservoirs under development in Tatarstan are presented by sands and heterogeneous, with respect to geology and, thus, the conformance of steam in the reservoir is not uniform. The purpose of this study is to detect lateral and vertical gradients of relative concentrations of biomarkers presented in oil, which allows assessing potential drainage zones in the reservoir during the reservoir production by steam injection. In this research, new method for monitoring of steam chamber development in 3D model was developed and tested. Methodology & Theoretical Orientation: Total hydrocarbon fraction was isolated from core extracts and analyzed by GCMS method (TIC) for detection of various biomarkers and assessment of lateral and vertical gradients of their concentration in lateral. Findings: It was found that the proportion of 4- and 1-methyldibenzothiophenes (MDBT) changes in lateral and in vertical directions. These changes are caused by biodegradation of organic matter. Laboratory research shows that 1-MDBT/4-MDBT ratio in native reservoir rocks is stable under high temperatures and pressure, so it can be measured in the samples of oil produced by SAGD method. This measurement will allow assessment of location and direction of steam chamber propagation. Conclusion & Significance: In this work the authors have developed geochemical model which can be used for assessment of oil flow directions during the development of heavy oil fields by SAGD method.
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