Learning path
Oil & Gas Upstream Operations learning path: everything to study, topic by topic
Comprehensive oil and gas upstream assessment covering fundamentals, exploration and appraisal, drilling and completions, production operations, facilities and processing, HSE and integrity, and economics and decommissioning.
Short answer
To learn Oil & Gas Upstream Operations, work through 7 modules and 24 topics in the order they build on each other. It starts with Upstream Fundamentals, then moves on to Exploration & Appraisal and Drilling & Completions. Use the map as a checklist, or measure your level and study only what is missing.
What you will study
Topics are grouped by module. Open one to see its objectives and key concepts.
1 · Upstream Fundamentals4 topics
Petroleum System Basics
The geological elements that must combine to form a hydrocarbon accumulation: source rock, migration, reservoir, seal, and trap.
Objectives
- Explain the elements required for a working petroleum system
- Describe how hydrocarbons migrate from source to reservoir
Key concepts
- source rock
- reservoir rock
- trap
- seal
- migration
- maturation
Upstream Value Chain
The sequence of upstream phases from exploration through appraisal, development, and production, and how it differs from midstream and downstream.
Objectives
- Describe the phases of the upstream field life cycle
- Distinguish upstream activities from midstream and downstream
Key concepts
- exploration
- appraisal
- development
- production
- upstream vs downstream
- field life cycle
Industry Terminology & Units
Core units, measures, and naming conventions used across upstream operations including barrels, API gravity, and gas-oil ratio.
Objectives
- Use common upstream units and conversions correctly
- Interpret basic field and well terminology
Key concepts
- barrel of oil equivalent
- API gravity
- gas-oil ratio
- wellhead
- field nomenclature
- standard conditions
Hydrocarbon Properties
Classification and behaviour of reservoir fluids - crude oil, gas, and condensate - and how composition drives phase behaviour.
Objectives
- Classify reservoir fluids by type and phase behaviour
- Relate fluid properties to production characteristics
Key concepts
- crude oil
- natural gas
- condensate
- phase behaviour
- fluid composition
- black oil vs volatile
2 · Exploration & Appraisal4 topics
Seismic Acquisition & Interpretation
Acquisition, processing, and interpretation of seismic data to image the subsurface and identify prospective structures.
Objectives
- Interpret a seismic section to identify structural traps
- Explain how seismic data reduces exploration uncertainty
Key concepts
- seismic survey
- amplitude
- two-way time
- horizon mapping
- structural interpretation
- seismic attributes
Prospect Evaluation & Risking
Assessing the geological chance of success and resource volume of a prospect to support drill-or-drop decisions.
Objectives
- Estimate the probability of geological success for a prospect
- Rank prospects within a play fairway by risk and volume
Key concepts
- probability of success
- play fairway
- prospect risking
- volumetrics
- chance of success
- exploration portfolio
Reserves & Resources Estimation
Classifying and estimating hydrocarbon volumes using recognized frameworks, distinguishing reserves from contingent resources.
Objectives
- Classify volumes using the PRMS framework
- Estimate recoverable volumes from a volumetric calculation
Key concepts
- proved reserves
- probable reserves
- possible reserves
- contingent resources
- recovery factor
- PRMS classification
Appraisal Drilling Strategy
Planning appraisal wells to delineate a discovery, confirm fluid contacts, and reduce uncertainty before development sanction.
Objectives
- Design an appraisal program that reduces subsurface uncertainty
- Apply value-of-information logic to appraisal well decisions
Key concepts
- appraisal well
- reservoir connectivity
- fluid contacts
- value of information
- data acquisition plan
- field delineation
3 · Drilling & Completions3 topics
Drilling Operations
The mechanics of rotary drilling, including rig systems, drilling fluids, and the parameters that govern penetration and hole stability.
Objectives
- Describe the main components of a drilling operation
- Explain how mud weight controls wellbore stability
Key concepts
- drilling rig
- drilling fluid
- rate of penetration
- bottom hole assembly
- mud weight
- tripping
Well Design & Casing
Engineering the well architecture - casing strings, cementing, and trajectory - to safely isolate formations and reach the target.
Objectives
- Design a casing program for a given well profile
- Justify casing seat selection from pressure constraints
Key concepts
- casing program
- cementing
- well trajectory
- kick tolerance
- casing seat
- directional drilling
Well Completions
Preparing the well to produce: completion architecture, perforation, stimulation, and sand control to optimize inflow.
Objectives
- Select a completion type for given reservoir conditions
- Explain how perforation and stimulation affect inflow
Key concepts
- completion design
- perforation
- sand control
- hydraulic fracturing
- production tubing
- flow assurance at completion
4 · Production Operations4 topics
Reservoir Behaviour & Management
Understanding how reservoirs deplete and respond to production, and the management strategies that maximize recovery.
Objectives
- Identify the dominant drive mechanism from production data
- Explain how pressure maintenance extends field life
Key concepts
- drive mechanism
- reservoir pressure
- material balance
- depletion
- sweep efficiency
- reservoir simulation
Production Optimization
Maximizing well and field deliverability by balancing inflow and outflow performance and removing production bottlenecks.
Objectives
- Apply nodal analysis to diagnose a production constraint
- Optimize a well's operating point across the system
Key concepts
- nodal analysis
- well performance
- production allocation
- bottleneck analysis
- choke management
- inflow performance
Artificial Lift
Adding energy to lift fluids when natural reservoir pressure is insufficient, and selecting among ESP, gas lift, and rod pump.
Objectives
- Select an artificial lift method for given well conditions
- Diagnose underperformance in an artificial lift system
Key concepts
- electric submersible pump
- gas lift
- rod pump
- lift selection
- pump efficiency
- drawdown
Well Intervention & Workover
Restoring or enhancing well productivity through interventions such as workovers, wireline, coiled tubing, and stimulation.
Objectives
- Plan a workover to restore a declining well
- Choose an intervention technique for a given production problem
Key concepts
- workover
- wireline
- coiled tubing
- well stimulation
- scale removal
- recompletion
5 · Facilities & Processing3 topics
Surface Production Facilities
The surface plant that gathers, processes, and routes produced fluids, from manifolds through utilities to export.
Objectives
- Describe the main process blocks of a production facility
- Relate facility capacity to field production targets
Key concepts
- manifold
- process flow diagram
- facility capacity
- flowlines
- production header
- utilities
Separation & Treatment
Splitting and conditioning produced fluids into oil, gas, and water streams that meet export and disposal specifications.
Objectives
- Explain how a three-phase separator splits oil, gas, and water
- Specify treatment steps to meet export quality
Key concepts
- three-phase separator
- dehydration
- water treatment
- gas processing
- emulsion breaking
- produced water
Export & Metering
Measuring and transferring produced hydrocarbons at the custody boundary, including fiscal metering and export logistics.
Objectives
- Describe how custody transfer metering ensures accurate allocation
- Compare pipeline and tanker export options
Key concepts
- custody transfer
- fiscal metering
- export pipeline
- tanker loading
- allocation metering
- measurement uncertainty
6 · HSE & Integrity3 topics
Process Safety Management
Preventing major accidents in hydrocarbon facilities through hazard identification, barrier management, and safety cases.
Objectives
- Apply barrier thinking to a major accident hazard
- Explain the role of a safety case in process safety
Key concepts
- hazard identification
- barrier model
- safety case
- major accident hazard
- HAZOP
- process safety indicators
Well Integrity
Maintaining two independent barriers against uncontrolled flow throughout the well life cycle, from drilling to abandonment.
Objectives
- Evaluate well barrier status from annulus pressure data
- Design a well integrity management strategy across the life cycle
Key concepts
- well barrier
- annulus pressure
- sustained casing pressure
- integrity envelope
- barrier verification
- blowout prevention
Environmental Management
Managing the environmental footprint of upstream operations, including emissions, flaring, spills, and produced water.
Objectives
- Develop a flaring and emissions reduction plan
- Assess environmental risks of a produced water disposal route
Key concepts
- emissions management
- flaring reduction
- spill prevention
- produced water disposal
- environmental impact assessment
- methane monitoring
7 · Economics & Decommissioning3 topics
Project Economics
Evaluating the economic viability of upstream projects through discounted cash flow, NPV, IRR, and breakeven analysis.
Objectives
- Build a discounted cash flow model for a field development
- Interpret NPV and IRR to support an investment decision
Key concepts
- net present value
- internal rate of return
- discounted cash flow
- breakeven price
- capital expenditure
- operating cost
Fiscal Regimes & Contracts
How host governments capture value through royalties, taxes, and production sharing, and how regimes shape project economics.
Objectives
- Compare government take across fiscal regime types
- Model cost recovery and profit split in a production sharing contract
Key concepts
- production sharing contract
- royalty
- tax and royalty regime
- cost recovery
- government take
- concession agreement
Decommissioning & Abandonment
Safely retiring fields at end of life - well plug-and-abandonment, facility removal, and managing decommissioning liabilities.
Objectives
- Plan a plug-and-abandonment program for end-of-life wells
- Estimate and provision for decommissioning liabilities
Key concepts
- plug and abandonment
- decommissioning liability
- asset retirement obligation
- facility removal
- end of field life
- decommissioning provision
Levels: Junior, Mid, Senior, and Expert
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Frequently asked questions
Where should I start studying Oil & Gas Upstream Operations?
Start with Upstream Fundamentals: Petroleum System Basics, Upstream Value Chain, and Industry Terminology & Units. The map orders topics by what they depend on, so each one prepares the next.
How long does a full Oil & Gas Upstream Operations assessment take?
A full assessment of this path takes about 50 minutes. Study time depends on where you start; a diagnostic shows which topics you can skip.
Do I need an account to use this page?
No. The map, objectives and key concepts are open. You only need an account to be measured, get your gap by topic and receive a plan.