An Interactive 5-Day Training Course
Natural Gas Reservoir Engineering
From Reserves Estimation and Well Testing to Field Development and Gas Storage
Natural Gas Reservoir Engineering
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Natural Gas Reservoir Engineering - RE-NGR-PEA27
| Code | Date | Time | Duration | Location | Currency | Early Bird Fee Per Person |
|---|---|---|---|---|---|---|
| RE-NGR-PEA27 | 01 - 05 Feb 2027 | 10 AM CST | 4 Hours / Day |
Online |
USD |
3500 |
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Natural Gas Reservoir Engineering
Description
This course presents the concepts and applications of reservoir engineering essential to the sound development of natural gas reservoirs. It begins with the estimation of gas reserves — volumetric methods, the material balance equation, p/z pressure decline analysis, and the treatment of abnormally pressured reservoirs. Gas condensate reservoirs are then covered in depth, including vapour-liquid equilibrium, retrograde behaviour, and performance prediction under pressure depletion and pressure maintenance.
The course gives rigorous treatment to production decline curve analysis and to the two pillars of gas well testing: deliverability testing (flow-after-flow, isochronal, and modified isochronal tests) and pressure transient analysis using pressure-squared and pseudo-pressure techniques. It closes with gas field development — matching reservoir deliverability to well count, spacing, and equipment capacity to find the optimum development pattern — and the underground storage of natural gas in depleted reservoirs, aquifers, and caverns. Throughout, the reservoir, wells, and surface system are treated as one connected system, since a change in any component affects the performance of the others.
By the end of this training, participants will be able to:
- Estimate gas in place and reserves using volumetric and material balance methods, including p/z analysis and straight-line techniques
- Handle abnormally pressured gas reservoirs in reserves estimation
- Predict the performance of gas condensate reservoirs under depletion, pressure maintenance, and gas cycling
- Classify and apply production decline curves — exponential, harmonic, and hyperbolic
- Design and analyse gas well deliverability tests: flow-after-flow, isochronal, and modified isochronal
- Account for non-Darcy flow in gas well performance
- Analyse drawdown and buildup tests using pressure-squared and pseudo-pressure methods, including wellbore storage and average reservoir pressure determination
- Determine optimum gas field development patterns from reservoir deliverability, well spacing, and equipment capacity
- Understand the engineering of underground gas storage in depleted reservoirs, aquifers, and caverns
Organisations sending participants to this training will:
- Strengthen in-house capability to estimate gas reserves reliably across normal, abnormally pressured, and condensate reservoirs
- Improve the quality of deliverability forecasts and production profiles used in development and commercial decisions
- Get more value from well test data through correct design and analysis of deliverability and transient tests
Participants will:
- Build a complete, structured command of gas reservoir engineering.
- Gain confidence in performing and defending material balance, decline curve, and well test calculations
- Learn to select the right analysis method and recognise when a standard method does not apply
- Understand gas condensate behaviour well enough to anticipate retrograde effects before they cost recovery
- Develop the systems view that links reservoir performance, well deliverability, and surface capacity
- Advance their standing in one of the most commercially important disciplines in petroleum engineering
- Reservoir engineers working on gas and gas condensate fields
- Petroleum engineers moving into gas asset teams
- Production engineers responsible for gas well performance and testing
- Well test and surveillance engineers
- Reserves and planning engineers responsible for gas asset forecasts
- Geoscientists involved in gas field evaluation and development
- Engineers working in or moving into underground gas storage
Module 1 — Estimation of Gas Reserves
Gas in place by the volumetric equation
The material balance equation: assumptions, derivation, and application
Reserves and performance prediction: p/z pressure decline and straight-line methods
Associated and dissolved gas reserves
Abnormally pressured gas reservoirs
Module 2 — Gas Condensate Reservoirs
Vapour-liquid equilibrium, bubble-point and dew-point pressure
Condensate testing and sampling
Single-phase and two-phase condensate behaviour; retrograde condensation
Performance prediction under pressure depletion and pressure maintenance (cycling)
Economics of gas condensate recovery
Module 3 — Production Decline Curves
Economic limit and classification of decline curves
Constant percentage, harmonic, and hyperbolic decline
Reserves produced at restricted rates
Module 4 — Deliverability Testing of Gas Wells
Horizontal flow equations and non-Darcy flow
Flow-after-flow, isochronal, and modified isochronal tests
Deliverability plots, performance coefficient and exponent
Analysis methods for isochronal test data and future inflow performance relationships
Module 5 — Transient Testing of Gas Wells
Transient flow of real gases through porous media
Pressure-squared and pseudo-pressure approaches — and when to use each
Drawdown and buildup test analysis
Average reservoir pressure determination
Wellbore storage, fractured wells, and type-curve matching
Module 6 — Gas Field Development
Reserves, deliverability, and field development pattern
Well spacing and equipment capacity limitations
Predicting reservoir performance: reservoir versus flow-line capacity
Optimum development patterns and production rate
Module 7 — Storage of Natural Gas
Purpose and segments of underground gas storage
Storage in depleted reservoirs and aquifers
Storage in salt caverns and mined caverns
Storage reservoir considerations and operation
Upon successful completion of this training course, delegates will be awarded an official Certificate of Completion issued by the Petroleum Engineers Association (PEA), an ISO 9001:2015 certified training organization. The certificate carries 10 Credits and formally records the total learning hours completed.
Each certificate is signed by the Course Facilitator and the CEO of the Petroleum Engineers Association, and serves as verifiable proof of professional training that delegates can present to employers and professional bodies worldwide.
A veteran Reservoir Engineer with over 40 years of international experience across leading operators including Shell International E&P, Petroleum Development Oman (PDO), BG Group, and Oil India Limited. He is a recognized authority in reservoir engineering with deep expertise in field development planning, waterflood and chemical EOR, resource volume estimation and audits, production forecasting, and technical assurance.
At PDO, he served as Reservoir Engineering Coach and Technical Authority, mentoring over 250 engineers and designing a 3-year Graduate Development Program. As Subsurface Instructor, he built internal reservoir engineering courses that replaced 12 commercial courses and saved the company USD 0.5 million annually. Earlier, as Discipline Lead at Shell, he led standards and training for 75+ engineers and oversaw production forecasting for fields producing over 300,000 BOPD.
His hands-on field experience includes leading the implementation of one of the world's largest polymer floods in a 3-billion-barrel heavy oil field, simulation of complex coning-prone reservoirs, SEC reserves management, and FDP approvals with JV partners and regulators.
He holds B.Tech and M.Tech degrees in Petroleum Engineering from IIT (ISM) Dhanbad, serves as a reviewer for the SPE Reservoir Engineering Journal, and has authored numerous papers presented at SPE, IPTC, and SPWLA conferences worldwide. He has delivered 50+ international technical training programs and continues to consult and lecture globally, including guest lectures at IIT Dhanbad and IIT Madras.
Frequently Asked Questions
All course bookings made through PEA are strictly non-refundable. By registering for a course, you acknowledge and accept that all fees are payable in full and are not subject to refund under any circumstances, including changes in personal or professional commitments or partial attendance.
PEA reserves the right to make reasonable adjustments to course content, trainers, or schedules where necessary, without entitling delegates to a refund. Comprehensive details of each course — including objectives, target audience, and content — are clearly outlined before enrolment, and it is the responsibility of the delegate to ensure the course's suitability prior to booking.
For any inquiries related to cancellations or bookings, please contact our support team, who will be happy to assist you.
