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| Acid stimulation |
Form of hydrochloric acid is pumped down well hole to enlarge pore space in oil bearing rocks to increase flow and recovery. |
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| Acoustic log |
Record of time take by a sound wave to ravel over a certain distance through geological formations. |
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| Adandonmnet / Decommissioning |
Process of dismantling wellhead, production and transportation facilities and restoration of de pleated producing areas in accordance with licence requirements and /or legislation. |
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| Air injection |
An enhanced recovery technique in which air is injected into hydrocarbon formation to increase reservoir pressure. |
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| Artificial lift |
Any techniques, other than natural drives, for bringing oil to surface. |
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| Blow-down |
Condensate and gas produced simultaneously from outset of production. |
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| Casing perforation |
Holes made in liner of a finished well to allow hydrocarbons to flow into production tube. |
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| Cathodic protection |
Method used to minimize rate of electrochemical corrosion of structures, for example, installations offshore, pipelines and storage tanks. |
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| Christmas tree |
Branching series of pipes, gauges and valves on top end of each production well to control flow of oil or gas. |
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| Closed-in |
Descriptive of a well that is capable of producing, but is not currently producing. |
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| Coiled tubing |
Used to carry production equipment to bottom of well. |
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| Commingling |
Producing oil and gas from two or more reservoirs at different depths, or where product of two or more fields is transported via a common pipeline. |
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About Permian 
