| Barrel |
A unit of volume measurement used for petroleum and its products (7.3 barrels = 1 ton: 6.29 barrels = 1 cubic metre). |
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| bbl |
One barrel of oil; 1 barrel = 35
Imperial gallons (approx.), or 159 litres (approx.); 7.5 barrels = 1
tonne (approx.); 6.29 barrels = 1 cubic metre. |
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| bcf |
Billion cubic feet; 1 bcf = 0.83 million tonnes of oil equivalent. |
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| bcm |
Billion cubic metres (1 cubic metre = 35.31 cubic feet). |
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| Bit |
Cutting or boring element used in drilling oil and gas wells. |
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| blow-down |
Condensate and gas is produced simultaneously from the outset of production. |
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| Blow-out |
When well pressure exceeds the ability of the wellhead valves to control it. Oil and gas "blow wild" at the surface. |
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| Blow-out preventers (BOPs) |
High pressure wellhead valves, designed to shut off the uncontrolled flow of hydrocarbons. |
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| Borehole |
The hole as drilled by the drill bit. |
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| bpd |
Barrels Per Day |
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| Bubble Point |
The temperature and pressure at which part of a liquid begins to convert to gas. |
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| Bullnose |
Lowest part of the toolstring if no bottom spinner is run. For Ultrawire™ tools, contains a terminator circuit. |
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