10.20 Jun 18, 2026
ISO
ISO/TC 263
International Standard
This document specifies the technical requirements for injection/falloff testing in coalbed methane wells, covering test design, equipment configuration, operating procedures, data interpretation, and well test report preparation. It is applicable to testing during drilling or after completion of coalbed methane wells, with the aim of obtaining key reservoir parameters including permeability, formation pressure, skin factor, and radius of investigation.
PROJECT
ISO/NP 26857
10.20
New project ballot initiated
Jun 18, 2026