3D CT scan image analysis of wormholes
Cylindrical carbonate specimens of approximately 65-70 mm length and 25 mm diameter were treated with chemical stimulants, an acid and a biodegradable, non-hazardous liquid. Our task was to carry out CT scanning and to construct 3D models of both the plugs. The aim was to visualize the pathways and interconnected pore space (or “wormholes”) which both the agents created in the limestone. Our 3D reconstruction revealed that the acid dissolves much more carbonate rock and forms a much broader channel than the biogradable liquid. However, the fine network of wormholes created by this liquid is much more suitable as a pathway for hydrocarbons and consequently, the non-hazardous liquid serves as the more appropriate stimulant compared to the acid.
News
DGMK/ÖGEW spring conference 2025 goes on tour and we are part of it!
Meet us on booth 2, we look forward to a lively exchange in Papenburg.
Gesteinslabor Dr. Eberhard Jahns is project and research partner within the HENRI (Hydrogen Energy Reservoir) project.
Main focus of us is the impact of H2 on the cap rock. Besides other parameters, we determine the capillary threshold pressure with different gases and gas mixtures.
First preliminary results could be presented at the 2nd HENRI conference.
Recently, the article "Determination of capillary threshold pressure with hydrogen gas" was published in the journal EEK.
Article from the journal EEK 01/2023
Gesteinslabor has successfully completed the development of a new test rig to determine the capillary threshold pressure with hydrogen.
Read more … Determination of capillary threshold pressure using hydrogen gas