Engineering and Petroleum Development
Fluid Systems Analysis
De-risk exploration with better understanding of fluid system elements
Gas Subsea has developed comprehensive fluid systems analysis capabilities, for exploration of petroleum, hydrogen, and helium, as well as contributing to geothermal and CCUS, ensuring close collaboration. Our integrated approach ensures we can tailor projects to project-specific needs and challenges, leveraging a wide-range of expertise:
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- 1D, 2D and 3D basin modeling using industry-standard software
- Multi-phase and multi-species fluid behavior.
- Source facies and fluid bulk properties.
- Integrated, in-house capabilities; geophysics, geoscience, geochemistry, sedimentology, stratigraphy, and rock physics-petrophysics-seismic inversion.
- Establish the presence and effectiveness of conventional and unconventional reservoirs, source faciesand character, seal, and trap for a host of sub-surface fluids (hydrocarbons, hydrogen, helium, geothermal and CCUS)
- Characterize reservoir effectiveness by looking at the type, quality, extent, and connectivity in relation to a host of sub-surface fluid types.
- Ascertain the processes of diagenesis that alter the reservoir following deposition.
- Study your seal to understand the integrity and column height potential using fault seal analysis, sedimentology, and basin modeling techniques.
- Characterize your source rock facies and generation processes to better understand extent, thermal history including transformation and estimated expulsion compositions and volume distributions (multi-fluid and phase).
- Improve understanding of the trapping mechanism and controls on column height distributions of your fluid system.
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Characterize the full fluid system
Fluid Systems studies
Develop E&P assets confidently with accurate subsurface knowledge.
Maximize field potential and optimize production by starting with a comprehensive geological understanding. GAS SUBSEA field development consultancy services, which include fully integrated static and dynamic model building, seismic inversion, and other data-enhancing workflows, help you model the best scenarios for optimal production.
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Key Expertise to help maximize asset value.-
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- Structural and petroleum geology
- Geochemistry
- Geophysics
- Geomechanics
- Sedimentology
- Seismic reservoir characterization
- Petrophysics
- Reservoir engineering
- Petroleum engineering
- Facilities engineering
Reserves Certification & Valuation
Trusted multi-disciplinary advice to support your strategic decisions.
Gas Subsea has a long history of providing high-quality reserves certification & valuation services, from fast evaluations for time-critical M&A decisions to detailed reserves assessment studies and field development planning. We have provided Reserves Certification and Competent Persons Reports (CPR) to AIM and LSE listed companies. Our valuation services cover the whole of the valuation chain, from exploration blocks to mature producing fields, both onshore and offshore.
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Reporting and reserves certification-
- Reserves and economics evaluation and reporting (SEC, SPE PRMS) for stock market listing, and project and bank finance.
- Competent persons report (CPR) for company right issues and for stock market flotation and listing.
Geological & Static Data Analysis
We tailor our workflows to our clients’ needs, considering the nature of the asset and the available data, to deliver enhanced subsurface understanding that supports strategic decisions. We bring a huge range of regional knowledge and technical expertise to achieve this:
All the available regional and field-specific geological, geophysical and petrophysical data is reviewed, analyzed, and integrated to increase understanding and mitigate risk for the target sequence, license block or farm-in opportunity.- A clear structural and stratigraphic framework is developed and used to map existing discoveries and potential traps.
- Workflow deliverables include a range of in-place volumes and the associated geological risks.
Dynamic Reservoir Engineering
We provide expertise in classical reservoir engineering disciplines and analysis, including material balance, well test analysis and nodal analysis for our dynamic model building and reservoir engineering workflows:
- Equation of state modeling
- Pressure surveys: RFT, MDT, XPT
- Transient test modeling
- Material balance
- Decline curve analysis.
- Inflow – outflow performance analysis
- The available dynamic data is reviewed, analyzed, and integrated with the static data and model by our experienced reservoir engineers. Standard deliverables from the dynamic reservoir
modeling will include: - Recoverable volumes and recovery factors (RF)
- Production forecasts based on a selection of development scenarios.
Facilities Costing & Economics
Once the production forecasts have been generated, our petroleum economists generate cost profiles for operating costs (OPEX), capital costs (CAPEX) and abandonment costs. An economics model based on the fiscal terms is created and used to model cash flow, NPV, rate of return, EMV (for exploration and prospects) and any other operational economic metrics required. These form the basis of our reporting deliverables:
- Reserves and economics reporting (SEC, SPE PRMS)
- Reserves evaluation reports for project and bank finance
- Competent Persons Report (CPR) for company right issues and for stock market flotation and listing
- Public domain studies and valuations
- Bank and project finance.
Asset evaluation
- Exploration license round economics, evaluations and bid advice.
- Exploration and appraisal technical and commercial evaluations.
- Field commercialization studies.
- Asset acquisition, farm-in and divestment evaluation, support and advice.
- Rapid company merger and acquisition (M&A) evaluations.
Drilling services
GAS SUBSEA offers expertise in drilling to advise on planning, costing and execution for exploration, appraisal, and development wells in cooperation with subsurface and engineering disciplines.
Drilling operations require a detailed appreciation of the geology of formation surrounding the r- Vertical, Deviated, and Horizontal well design.
- HPHT Consultancy, Operations, and post drill analysis.
- Safety and risk assessment.
- Onshore and offshore drilling experience
- planning procurement and contract negotiations.
- Cement and mud services, Planning, and workover design.
- Multiple software expertise.
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