METHODS AND ARRANGEMENTS FOR CARBON DIOXIDE STORAGE IN SUBTERRANEAN GEOLOGICAL FORMATIONS

摘要

The invention concerns an arrangement (1) for injecting CO2 in a supercritical state into a subterranean geological formation (2), said arrangement comprising: a conduit (3) having a proximal portion (4) and a distal portion (5), at least part of said distal portion (5) extending in a substantially horizontal direction; multiple openings (6a-6z) being provided in said distal portion (4) of said conduit (3) for injection of CO2 into said geological formation (2);wherein said multiple openings (6a-6z) are provided with outflow limiting means (7) for limiting the flow rate of CO2 through respective said opening (6a-6z) into said geological formation (2). The invention also concerns a method for storage of CO2 by said arrangement.