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About the Need for Geochemical Data Accounting When Assessing Reserves and Resources of Shale Oil by the Volumetric Method
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE/SPE Workshop on Shale Science 2019, Apr 2019, Volume 2019, p.1 - 4
Abstract
Summary
From January 1, 2018 Temporary methodological guidance on the calculation of oil reserves in fractured and fissured-porous reservoirs in the sediments of the Bazhenov strata of the West Siberian oil and gas province (TMG) is valid. In source rocks, part of the pore volume is occupied by solid hydrocarbons. They should not be taken into account when reserves/resources calculating. The open porosity of rocks, determined according to TMG, should be decreased by the amount of pore volume occupied by solid high-molecular hydrocarbons. This value can be estimated by pyrolytic data. Evaluation methods are discussed.
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