Detailed engineering studies of the surface installations of fifty (50) raw gas wells, Twelve (12) manifolds, One (01) inlet manifold to the existing gas CPF at Ohanet and a gathering network made up of flowlines and trunklines with a total length of 328 km at Tinrhert

Detailed engineering studies for the EGPDF 48 '' El Aricha - Beni Saf gas pipeline that mainly consists of a Ø48 '' pipe with a length of 200 km allowing gas to flow in both directions (bidirectional).

Detailed engineering studies for the PS 04/GR5 - Adrarf gas pipeline that mainly consists of a Ø28 '' pipe with a length of 110 km.

Updating of the As in plans of the production units of Hassi Messaoud, Mesdar, El and Bir Berkine SH-DP including PFD, P&ID, Fire prevention network plans, electrical diagrams and compliance reports.

Detailed engineering of the GR6 gas pipeline Rhourd nouss –Hassi R’mel , consisting mainly of a Ø48 pipeline of 531 Km length, One (01) Departure Terminal at TFT, One (01) Departure Terminal at Rhoud Nouss, One (01) Arrival Terminal at Hassi R'Mel, Six (06) block valve Stations, Twenty-two (22) Sectioning Stations.

Detailed engineering for the GR5 gas Pipeline consisting essentially of a pipeline, a loop and two (02) compressor stations with all the related installations. This structure transports gas from nine (09) fields discovered south-west of Hassi R’Mel for delivery to the CNDG from the Departure Terminal located in Reggane. It mainly consists of a Ø48 "pipe with a length of 765 km, One (01) Departure Terminal at Reggane, One (01) Arrival Terminal at Hassi R'Mel, Sept (07) Injection stations, Sept (07) block valve Stations, Twenty eight Disconnecting Stations.

More than 30 HSE studies of oil and gas installations approved by the competent authorities. FERA, QRA, EDD, EIE, PII, SGE, SGS type studies for various national and foreign clients (Sonatrach, Cosider, Petrofac, Bonatti, Artelia, Conoco Phillips Samsung, etc.)