- Aboveground crossing
- Accident
- Aeration tank
- Aggressive (corrosive) water
- Air cooler
- Arctic pipelines
- Associated petroleum gas
- Back-stripping analysis
- Barbotage
- Barrage
- Barrel
- Bio-indication
- Bottomhole zone
- Box-and-pin joint (tool joint)
- Carbon black
- Casing string
- Catagenesis of organic substance
- Cavernosity
- Clogging
- Column equipment
- Comprehensive gas treatment unit
- Compressed natural gas filling stations
- Compressing
- Compressor station
- Condensate recovery factor
- Connector
- Core sample
- Correlation
- Corrosion
- Cratering
- Directional drilling
- Distillation-based separation of multi-component fluids
- Diversification
- Drilling
- Drilling (penetration) rate
- Drilling rig
- Dry gas
- Expander
- Extreme anhydrous depression
- Failure in gas industry
- Field development techniques
- Fishing tool
- Flammability limit
- Flare unit
- Fluid
- Fluid dynamics
- Flushing out of well
- Fore deep
- Formation
- Formation pressure
- Formation testing
- Fossil (stratum, reservoir, formation) water
- Free (non-associated) gas
- Free-piston pumping
- Fuel equivalent
- Gas absorption
- Gas adsorption
- Gas cap
- Gas condensate fields
- Gas consumption rate
- Gas deposit water cut
- Gas desorption
- Gas disposition terminal
- Gas distribution network
- Gas distribution plant (GDP)
- Gas engines
- Gas hydrates
- Gas hydrates self-conservation
- Gas interchangeability
- Gas jet ejector
- Gas linepipe
- Gas macrojamming
- Gas processing plant
- Gas separation
- Gas stripping
- Gas supply to consumers
- Gas throttling
- Gas tongue
- Gas transmission system
- Gas trunkline
- Gas-water contact (GWC)
- Gasholder
- Geological exploration risk
- Geological formation
- Geological prospecting
- Gravity exploration
- Greenhouse gases
- Helium
- Horizon
- Hydraulic fracturing
- Hydrocarbons
- Hydrogen index (pH)
- Hydrogenation
- Injection capacity of a well
- Kharasaveyskoye field
- Kovykta field
- Lateral coning
- Lift string
- Line pipe operation center
- Liquefied natural gas
- Lithology
- Logging
- Long-distance gas transmission
- Looping
- Low-temperature separation of gas
- Magnetic prospecting
- Main gas generation phase (MGGP)
- Main oil generation phase (MOGP)
- Medvezhye field
- Membrane technology
- Methane
- Methanol
- Mobile CNG station
- Mofettes
- Natural gas dew point
- Natural gas production
- Natural gas purification
- Natural gas vehicles (NGV)
- Natural pressure gas lift operation
- Natural reservoir
- Octane rating
- Odorant
- Offshore fields exploration
- Oil and gas formation
- Oil and gas reservoir
- Oil rim
- Oil-water contact (OWC)
- Oil/gas blowout
- Orenburg helium refinery
- Packer
- Pad distribution
- Passivization
- Phase
- Phase transitions of hydrocarbon gases
- Pipelaying vessel
- Pipeline accessories (valves and fittings)
- Pipeline route
- Pipeline watercourse
- Pipelines ballasting
- Plugging material (backfill)
- Preventer (blow-out equipment, BOE)
- Producing (pay) horizon
- Prospective resources
- Raw gas
- Reamer
- Regasification
- Repression funnel
- Reserves
- Reserves-to-Production Ratio (RPR)
- Reservoir depression
- Reservoir energy
- Reservoir gas of condensate accumulations
- Reservoir impermeable seal
- Reservoir temperature
- Retrograde phenomena
- Riser string
- Rock gas saturation
- Satellite soils monitoring
- Secondary (enhanced) recovery methods
- Seismic exploration
- Skin-effect
- Sorption
- Spot trading
- Stabilized condensate
- Standard conditions
- Stray currents
- Subsurface use licensing
- Swivel
- Synthesis gas
- Take-or-pay
- Tubing string
- Unified Gas Supply System
- Unstabilized condensate
- Viscosity
- Well
- Well cementing
- Well deviation
- Well recompletion
- Well stock
- Well suspension
- Wellhead pressure
- Western Siberia oil and gas bearing province
- Working gas
- Zapolyarnoye field
Remaining working gas volume is the gas volume which can be withdrawn from an underground gas storage (UGS) facility in the forthcoming autumn-winter period provided that there is a certain gas volume in the UGS facility. The working gas volume essentially determines all parameters of a UGS facility. Its potential volume is determined by geometric sizes of the trap, capacity properties of the formation, pressure range in the formation during gas withdrawal.
In the process flow diagram of a UGS facility construction the working gas volume is determined on the basis of technological calculations with mathematical modeling. Upon that, it is necessary to take into account gas-saturated volume variation during operation of the storage facility as well as presence of a pressure sink in the formation. Working gas volume can be regulated by changing the pressure range and the pore volume (for storage facilities with active water drive). To provide gas withdrawal during the autumn-winter period and gas injection during the spring-summer period, the storage facility must have the adequate equipment and number of operational wells with a certain rated capacity. Operating conditions of the storage facility (maximum allowable pressure, injection and withdrawal rates, their profiles) have a substantial impact on the working gas volume.