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Determination of Residual Water Content in Unconventional Low-Permeable Oil Reservoirs on the Example of the Bazhenov Formation
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE/SPE Workshop on Shale Science 2019, Apr 2019, Volume 2019, p.1 - 6
Abstract
Summary
The article presents a comparative analysis of the results obtained using the Dean-Stark method and the evaporation method for rock samples of the Bazhenov formation of the Nizhnevartovsk arch (West Siberia, Russia). The research results show that the Dean-Stark method is not effective for determining the residual water content of low-permeable (tight) Bazhenov reservoir rocks with low pore water content. The residual water content in the samples obtained by the evaporation method ranges from 0.11 to 1.63 wt.% and varies unevenly with the depth. The amount of free water according to the evaporation method falls in the range of 0–0.99 wt.%.
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