Patent ID: 8998532
Filing Date: 2015-04-07
Classification: B65G,C01B,E21B,Y02C

Abstract:
1. A retention device for retaining a retained substance including at least one from carbon dioxide, a substance having larger solubility to water than carbon dioxide, and methane under the ground, comprising: an infusion well reaching to a saltwater aquifer; a pump device that pumps the retained substance to the infusion well; a horizontal well that is formed toward a substantially horizontal direction in at least one part of the infusion well inside the saltwater aquifer; a porous member that (i) is provided in a lower part of the horizontal well, (ii) is formed by mixing and calcining particles made of ceramics and binder, and (iii) has a mode of aperture distribution of 4.5 micrometers or less; and a ring member fixed in the horizontal well, the ring member comprising: wherein the retained substance is pumped into the horizontal well and infused into the saltwater aquifer through the porous member, and wherein microbubbles of the retained substance are generated when the retained substance is infused from the porous member to the saltwater aquifer.