An Analysis of Pore Network of Drilling Core from Pohang Basin for Geological Storage of CO2

이산화탄소 지중저장을 위한 포항분지 시추코어의 공극구조 분석

  • Received : 2016.05.23
  • Accepted : 2016.06.09
  • Published : 2016.06.30


In geological storage of $CO_2$, the behavior of $CO_2$ is influenced by pore network of rock. In this study, the drilling cores from Pohang Basin were analyzed quantitatively using three-dimensional images acquired by X-ray micro computed tomography. The porosities of sandstone specimens around 740 m-depth (T1), 780 m-depth (T2) and 810 m-depth (T3) which were target strata were 25.22%, 23.97%, 6.28%, respectively. Equivalent diameter, volume, area, local thickness of pores inside the sandstone specimens were analyzed. As a result, the microstructural properties of T1 and T2 specimens were more suitable for geological storage of $CO_2$ than those of T3 specimens. The result of the study can be used as input data of the site for decision of injection condition, flow simulation and so on.


Supported by : 한국에너지기술평가원(KETEP)


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