CO2 sequestration monitoring and verification technologies applied at Krechba, Algeria

Abstract

The In Salah project in Algeria is an industrial-scale [Formula: see text] storage project that has been in operation since 2004. [Formula: see text] from several gas fields, which have a [Formula: see text] content of 5–10%, is removed from the production stream to meet the sales gas-export specification of 0.3% [Formula: see text]. Rather than vent that separated [Formula: see text] to the atmosphere (as was normal industry practice for such gas plants), BP and its joint venture (JV) partner, Sonatrach, invested an incremental US$100 million in a project to compress, dehydrate, transport, and inject that [Formula: see text] into a deep saline formation downdip of the producing gas horizon. Statoil then joined the JV at production start-up in August 2004.