MAIN TOPIC
Gas Production, Reservoirs and Underground Gas Storage
Our activities include the construction, operation and decommissioning of underground gas storage facilities (UGS), as well as the exploration, development and enhanced recovery of gas and oil reservoirs. We address all aspects of underground gas storage facilities and reservoirs throughout their entire life cycle.
Our services combine geological and geophysical evaluations, laboratory investigations, 3D geological modelling, reservoir simulation, well engineering and general engineering services. We support cavern and porous-media storage facilities as well as gas and oil reservoirs – from initial assessment and operation through to repurposing or safe abandonment.
Comprehensive services from a single source
- Planning, design, tendering, construction, commissioning and operational support for underground gas storage facilities (UGS), depleted gas and oil reservoirs, aquifers and caverns, as well as oil and gas fields
- Geological exploration and the development of reservoir models, including laboratory analyses of geological, petrophysical and reservoir engineering properties
- Field development, construction supervision and support with procurement procedures
- Monitoring, analysis and optimisation of operations
- Development of reservoir models and performance of reservoir simulations
Underground gas storage
We provide engineering services for the construction, simulation and optimisation of cavern and porous-media storage facilities:
- Determination of effective storage pressures
- Determination of storage capacities for different storage media, such as natural gas, hydrogen and carbon dioxide
- Integrity assessment of the caprock, including laboratory investigations
- Analysis and modelling of flow processes within the reservoir
- Application of reservoir simulation models for the development planning and operation of natural gas storage systems
- Forecasting pressure development, gas deliverability and cushion gas requirements during cyclic injection and with drawal operations
- Optimisation of storage operations, including injection and withdrawal strategies and the control of water production
- Assessment of operational risks and support with long-term performance evaluation
- Design and monitoring of solution mining and initial gas filling
- Design, supervision and evaluation of tightness tests
- Decommissioning of storage facilities with maximum withdrawal of AGV and KGV volumes, as well as planning for subsequent use or safe abandonment
Gas and Oil Reservoirs
We work throughout the entire reservoir life cycle – from development to enhanced recovery:
- Evaluation of geological and geophysical exploration data
- Analysis and interpretation of well tests
- Laboratory investigations of petrophysical and fluid properties
- 3D geological modelling and 3D reservoir simulation
- Enhanced oil and gas recovery
Reservoir Simulation
We provide services for the analysis and optimisation of subsurface systems in the fields of underground gas storage (UGS), carbon dioxide storage (CCS), geothermal energy and depleted oil and gas fields.
Our work focuses on understanding reservoir behaviour under different operating conditions and developing efficient and safe operating strategies. The results support informed decision-making and reliable project implementation.
- Integrated modelling
Integration of geological and dynamic reservoir models to represent subsurface complexity - Capacity Assessment
Quantification of total, working, and cushion gas volumes under realistic operating conditions - Flow Analysis
Assessment of injectivity and deliverability - Reservoir Fluid characterization
Analysis of phase behaviour and composition - Operating Scenarios
Establishment of safe pressure limits and operating boundaries - Performance forecasting
Short-term Long-term prediction of reservoir behavior across multiple operational scenarios - Risk and uncertainty assessment
Systematic sensitivity analyses to support robust, risk-informed decision-making
Well integrity
- Well design
- Material selection
- Mechanical, hydraulic and thermal load analysis
- Technologies for well abandonment
Well completion
Connection of the reservoir to the borehole
- “Open hole” and “cased hole” completion
- Well inclination and trajectory
- Sand control and requirements
- Simulation of injection and production performance of well completion
- Production optimization (single or multiple zones)
Production completion and technology
- Artificial lift methods (gas lift, submersible centrifugal pump (ESP), etc.)
- Single and dual completion
- Tubing isolation (packer or equivalent)
- Annular production and injection
- Optimization of tube sizes
- Wellhead equipments
Well analysis
- Analysis of well tests
- Interpretation of well pressure data
- Productivity and injectivity tests
- Evaluation of reservoir parameters
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