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Oil & gas
Terms concerning oil and gas as a fossil fuel and natural resource.
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Oil & gas > Drilling 
oil-water interface
Oil & gas; Drilling
The surface of contact between a water layer and an oil layer.
interfacial tension
Oil & gas; Drilling
The surface free energy that exists between two immiscible liquid phases, such as oil and water. (Surface tension is the term for the energy barrier between a liquid and air. ) ...
shut-in pressure
Oil & gas; Drilling
The surface force per unit area exerted at the top of a wellbore when it is closed at either the Christmas tree or the BOP stack. The pressure may be from the formation or an ...
yield stress
Oil & gas; Drilling
The stress that must be applied to a material to make it begin to flow (or to yield). Yield stress is a parameter in the Herschel-Bulkley rheological model.
Sub-categories
- corrosion inhibition (0)
- Downhole (49)
- Drilling (9514)
- Environmental management (93)
- Fuel handling (16)
- Horizontal directional drilling (7)
- Offshore oil exploration (2047)
- Oil (4406)
- Oil & gas instrumentation (856)
- Oilfield (22159)
- Pipeline related (90)