- Aboveground crossing
- Accident
- Air cooler
- Arctic pipelines
- Associated petroleum gas
- Comprehensive gas treatment unit
- Compressed natural gas filling stations
- Compressing
- Compressor station
- Connector
- Core sample
- Corrosion
- Directional drilling
- Drilling
- Drilling rig
- Dry gas
- Expander
- Failure in gas industry
- Field development techniques
- Flammability limit
- Formation
- Formation pressure
- Formation testing
- Fuel equivalent
- Gas condensate fields
- Gas consumption rate
- Gas distribution network
- Gas engines
- Gas flare
- Gas hydrates
- Gas linepipe
- Gas macrojamming
- Gas processing plant
- Gas separation
- Gas stripping
- Gas supply to consumers
- Gas throttling
- Gas transmission system
- Gas trunkline
- Gasholder
- Geological exploration risk
- Geological prospecting
- Gravity exploration
- Greenhouse gases
- Helium
- Hydraulic fracturing
- Hydrocarbons
- Kharasaveyskoye field
- Kovykta field
- Liquefied natural gas
- Long-distance gas transmission
- Looping
- Low-temperature separation of gas
- Magnetic prospecting
- Medvezhye field
- Methane
- Methanol
- Mobile CNG station
- Natural gas dew point
- Natural gas production
- Natural gas purification
- Natural pressure gas lift operation
- Natural reservoir
- Octane rating
- Odorant
- Offshore fields exploration
- Oil and gas formation
- Oil and gas reservoir
- Pad distribution
- Pipelaying vessel
- Pipeline route
- Pipeline watercourse
- Pipelines ballasting
- Prospective resources
- Raw gas
- Regasification
- Reserves
- Reserves-to-Production Ratio (RPR)
- Seismic exploration
- Subsurface use licensing
- Synthesis gas
- Unified Gas Supply System
- Well
- Well deviation
- Well recompletion
- Well stock
- Well suspension
- Western Siberia oil and gas bearing province
- Working gas
- Zapolyarnoye field
Well deviation is well drifting during the process of drilling from the specified direction caused by geological conditions, specifics of a drilling technology and process conditions. The magnitude of well deviation is determined by an inclinometer (a device for measuring an inclination angle and azimuth of well deviation in order to control its three-dimensional position). It may reach several meters.