Experimental Evaluation of Shale Oil Development Effectiveness by Air Injection
نویسندگان
چکیده
In recent years, as an important part of unconventional resources, the effective development shale oil has been a key area research in petroleum engineering. Given widespread availability and low cost air, evaluation air injection reservoirs is topic worth exploring. This paper analyzes production performance different methods reservoir, including flooding huff puff (HnP), based on full-diameter core experiments. Meanwhile, characteristics residual produced are revealed by forming systematic method that includes nuclear magnetic resonance (NMR), laser scanning confocal microscopy (LSCM), gas chromatographic (GC) analysis. The results show characterized early breakthrough, long period, “L” shape decline; while HnP first producing then oil, rapid production, high recovery efficiency round. Compared with flooding, replacement round significantly higher, demonstrating higher feasibility stages development, although cumulative three rounds (17.17%) lower than (23.36%). large pores (T2 > 10 ms) main source recovery, mainly concentrated medium (1–10 ms). Air factor for light components (C15?), resulting level heavy oil. discusses effectiveness reservoirs, its further clarified.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15249513