Statoil Asa

Statoil Petroleum As

Equinor Energy As

Equinor Asa

Lars Høier

Bamshad Nazarian

Eimund Gilje

Jostein Alvestad

Aurelie Lagisquet

A process for the recovery of hydrocarbon such as bitumen/EHO from a hydrocarbon bearing formation in which are situated an upper injection well and a lower production well, the method comprising the steps: A non-condensable gas may be injected into the solvent chamber created by the hydrocarbon solvent.

Solvent and gas injection recovery process

A method and arrangement are proposed for introducing a COcomposition into a subterranean geological formation for storage of COtherein. The COcomposition is initially injected into the formation using a first set of injection parameters at which the COcomposition is a supercritical fluid having first viscosity and density values. The injection parameters are then modified such that the COcomposition is injected into the formation using at least one second set of injection parameters at which the COcomposition is a supercritical fluid having second viscosity and density values that are different from said first viscosity and density values, wherein said injection parameters include the injection temperature, injection pressure and hydrocarbon content of the COcomposition.

Methods for storing carbon dioxide compositions in subterranean geological formations

A method of introducing a COcomposition into an aquifer for storage of COtherein, said method comprising injecting COin a supercritical state into said aquifer at one or multiple first vertical positions; and withdrawing brine solution from said aquifer at one or multiple second vertical positions; wherein any one of said first vertical positions is distinct from any one of said second vertical positions is disclosed. An arrangement for introducing a COcomposition into an aquifer is also disclosed.

Methods for storing carbon dioxide compositions in subterranean geological formations and arrangements for use in such methods

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Stavanger, Norway

Lars Høier