Various National & International Oil Companies
Maximize asset value by accurately understanding reservoir behavior, reducing subsurface uncertainty, identifying additional reserves, and developing technically and economically optimized field development strategies.
OGS has completed integrated subsurface studies for more than 60 oil and gas fields worldwide. Our multidisciplinary teams combine geological modelling, seismic interpretation, petrophysical evaluation, reservoir simulation, production forecasting, uncertainty analysis, and economic evaluation to support investment decisions and optimize field development.
• Successful Recompletion of 147 High-pressure Gas Wells (107 in Galmaz and 40 in Garadag UGS Fields) in Azerbaijan in 2023-2024
• 16 Oil and Gas-Condensate Fields in Azerbaijan (Mishovdag, Kelameddin, Buzovna-Mashtaga, Gala, Zire, Kirhovdag, Neftcala, Neftdaslari, Balakhani, Bibiheybat, Karacukur, Siyazen, Bahar, GumDenizi, Bahar-2 Exploration, Umid-Babek)
• 2 Heavy Oil Carbonate Fields in Türkiye (Shellmo, Perenco Fields in Diyarbakir)
• 3 Oil (Arpatepe, Kozluk, Alaşehir) / 9 Gas Fields (Göçerler, Adatepe, Çayırdere, Alpullu, Pasaköy, Eskitaslı,Reisdere, Velimeşe, Dikilitaş ) in Türkiye
• 1 Underground Gas Storage Simulation Project in Türkiye
• 1 Ground Water Pollution Modelling Project in south eastern Türkiye
• 1 Reservoir Characterization Study of Bitumen Carbonate Reservoir in Canada
• 2 Thermal Recovery Simulation Projects (SAGD) in Canada
• 2 CO2 Sequestration Simulation Projects in Europe (EC-Project)
• 1 Oil Field in Turkmenistan (Burun)
• 6 Oil Fields in Kazakhstan (Karakuduk, Karacambaz, Kozhan, Morskoe, Karatal and Dauletaly)
• 7 Oil Fields in Iraq (Chia-Surkh, Rumalia, AinZalah, Butmah, Cemcamal, Anfal, Pulkano)
• Exploration Blocks in Niger
• 2 Exploration Blocks in Sudan (Block-10, 12)
• 3 Geothermal Development – Power Plant Projects in Türkiye
• Short courses in Production & Reservoir Engineering Topics in Türkiye, Kazakhstan, Azerbaijan, Qatar, Canada
• Subsurface Project Management, Iraq (Sarta Oil Field)
Basra Oil Company
Iraq
Accelerate the drilling of multiple development wells while maintaining the highest standards of operational safety, well quality, and cost efficiency in one of the world's largest producing oil fields.
OGS managed the complete turnkey drilling campaign, including drilling engineering, operational planning, contractor coordination, HSE management, logistics, and performance optimization. Advanced drilling practices and continuous performance monitoring enabled significant reductions in drilling time without compromising safety or well integrity.
SOCAR
Azerbaijan
Increase underground gas storage capacity in mature reservoirs experiencing declining injectivity, aging wells, and operational constraints.
OGS developed fully integrated geological and reservoir simulation models, identified production bottlenecks, designed the pressure maintenance strategy, planned one of the region's largest workover campaigns, and managed drilling and field execution.
PetOil International
Iraq
Transform a newly discovered oil field into a producing asset through an integrated development approach covering subsurface, facilities, and production operations.
OGS provided end-to-end project delivery, including reservoir modelling, field development planning, well engineering, production facility design, FEED management, EPC supervision, commissioning, and production optimization.
SOCAR
Azerbaijan
Increase production from mature reservoirs experiencing declining pressure and reduced recovery efficiency.
OGS developed integrated 3D geological and dynamic reservoir models, optimized injector-producer patterns, and designed a field-wide waterflood strategy focused on maximizing sweep efficiency and long-term recovery.
Chevron / Genel Energy
Iraq
Safely commission a new central processing facility while establishing efficient production operations and project governance.
OGS led operational readiness, commissioning, engineering management, procurement coordination, budgeting, integrity management, and project assurance throughout the facility startup phase.