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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

cataclastic

Oil & gas; Drilling

Pertaining to a type of metamorphic rock with shearing and granulation of minerals caused by high mechanical stress during faulting or dynamic metamorphism, typically during ...

sintered

Oil & gas; Drilling

Pertaining to a type of filter medium in which the particles are fused together to give a designed permeability. Sintered filters are used in the API high-pressure, ...

drag-bag

Oil & gas; Drilling

Pertaining to a technique in which a packer flowmeter is partially inflated and dragged up the hole to give a continuous flow log. This obsolete technique was introduced in the ...

sinistral

Oil & gas; Drilling

Pertaining to a strike-slip or left-lateral fault in which the block across the fault moves to the left; also called a sinistral strike-slip fault. If it moves to the right, the ...

dextral

Oil & gas; Drilling

Pertaining to a strike-slip fault or right-lateral fault in which the block across the fault moves to the right. If it moves left, the relative motion is described as sinistral. ...

spectral

Oil & gas; Drilling

Pertaining to a spectrum. The spectral content of a wavetrain or wavelet usually refers to its amplitude and phase as a function of frequency.

impermeable

Oil & gas; Drilling

Pertaining to a rock that is incapable of transmitting fluids because of low permeability. Shale has a high porosity, but its pores are small and disconnected, so it is relatively ...