Standardization of the principle, equipment and material requirements, sampling, experimental steps, data calculation and report of determination of porosity of shale by helium pycnometry.
This document can be used for resource evaluation, fine characterization of reservoirs, reserve calculation, target selection, etc. in shale gas exploration and development.
PROJECT
ISO/DIS 25426
40.20
DIS ballot initiated: 12 weeks
Jun 11, 2026
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