Petropedia Terms beginning with S
- Safe Working Load
- Safety Manager
- Safety Relief Valve
- Safety Wire
- Salinity Log
- SALM
- Saltwater Disposal
- Sand Production
- Satelite Well
- Saturation
- Scale Inhibitor
- scf
- scf/d
- Scientific Drilling
- Scintillator
- SCO
- Scrubbing
- Secondary Well Control
- Sedimentary Rock
- Seismic Interpretation
- Seismic While Drilling Vertical Seismic Profile
- Selective Running Tool
- Semisubmersible
- Semisubmersible Drilling Rig
- Separator
- Separator Units
- Sequestration
- Service Rig
- Set Point
- Setting Depth
- Seven Sisters
- Severance Tax
- Sewage Treatment Plant
- Shaker Tank
- Shale Gas
- Shale Oil
- Shale Shaker
- Shale Shaker Screen
- Shallow Gas
- Shear Pin
- Shear Ram Preventer
- Shear Relief Valve
- Shear Stock
- Shear Stress
- Shear Thinning
- Sheave Gauge
- Shifting Tool
- Shock Loading
- Shortwave Radiation
- Shot Blasting
- Shrouded Jet Nozzle
- Shut Down
- Shut Off
- Shut-In Drill Pipe Pressure (SIDPP)
- Shutdown Rate
- Shuttle Vessel
- SI
- SIC
- SIDPP
- Silica Gel
- Siliceous
- Silicon Tetrafluoride
- Single Anchor Leg Mooring (SALM)
- Sleeve
- Slick Boring
- Slick Drill Collar
- Slickline
- Slickline Equipment
- Slickline Seals
- Slickline Tools
- Sliding Sleeve Nipple
- Slim Hole Drilling
- Slimhole Well
- Slip Ring
- Slippage
- Slurry Density
- Slurry Viscosity
- Slurry Volume
- Slurry Weight
- Slurry Yield
- Slush Pump
- Small Tank
- Smart Pig
- Snatch Block
- SNG
- SNG
- Snubber
- Snubbers
- Snubbing
- Snubbing Basket
- Snubbing Force
- Snubbing Jack
- Snubbing Unit
- SO2
- Society of Petroleum Engineers (SPE)
- Sock Filter
- Sodium Bicarbonate
- Sodium Bichromate
- Sodium Bromide
- Sodium Carboxymethyl Cellulose
- Sodium Hydroxide
- Sodium Phosphate
- Sodium Silicate Mud
- Sodium Vapor Lamp
- Soil Stress
- Solar Radiation
- Solid Master Bushing
- Solid Solution
- Solid WireIine
- Solids Concentration
- Solids Control
- Solids Removal Equipment
- Solution Gas
- Solvent
- Sonic Flow Nozzle
- Sonic Logging
- Sonic Meter
- SOR
- Sorbent
- Sour Crude
- Sour Crude Oil
- Sour Gas
- Sour Hole
- Source Rock
- SPC
- SPE
- Specific Gravity Unit
- Square Metre (m2)
- Squeeze Tool
- Stabilized Gas Well
- Standard Cubic Feet (scf)
- Standard Cubic Feet Per Day (scf/d)
- Standard Industrial Classification (SIC)
- Standing Valve
- Standpipe Pressure
- Static Pressure
- Statistical Process Control (SPC)
- Steam to Oil Ratio (SOR)
- Stock-tank Oil Initially in Place
- Structural Engineer
- Structure
- Stuffing Box
- Submersible Drilling Rig
- Subsea Processing
- Subsea ROV
- Subsea Solutions
- Subsea Well
- Substitute Natural Gas (SNG)
- Subsurface Pressure
- Sucker Rod
- Sucker Rod Pump
- Sulfur Dioxide (SO2)
- Sulphuric Acid (H2SO4)
- Superficial Velocity
- Surface Casing
- Surface Pressure
- Swaging Tool
- Sweet Crude Oil
- Sweet Gas
- Synthetic Crude Oil (SCO)
- Synthetic Natural Gas (SNG)