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What (who) is drill stem formation tester - definition
FOR TESTING DURING OIL DRILLING
Drill Stem Test
Drill stem test
A drill stem test (DST) is a procedure for isolating and testing the pressure, permeability and productive capacity of a geological formation during the drilling of a well. The test is an important measurement of pressure behaviour at the drill stem and is a valuable way of obtaining information on the formation fluid and establishing whether a well has found a commercial hydrocarbon reservoir.
hammer drill
TYPE OF DRILL
Hammerdrill; Percussion drill; Impact drill; Percussion drilling
¦ noun a power drill that delivers a rapid succession of blows.
Muster drill
![A muster drill in progress on the ''[[Coral Princess]]''](https://commons.wikimedia.org/wiki/Special:FilePath/Coral Princess Muster Drill.jpg?width=200 "A muster drill in progress on the ''[[Coral Princess]]''")
![[[International Maritime Organization]] muster station sign](https://commons.wikimedia.org/wiki/Special:FilePath/IMO Muster station sign.jpg?width=200 "[[International Maritime Organization]] muster station sign")
DRILL
Lifeboat drill; Muster station; Assembly drill
A muster drill, sometimes referred to as a lifeboat drill or a boat drill, is an exercise that is conducted by the crew of a ship prior to embarking on a voyage. A muster drill prepares passengers for safe evacuation, in the event of an emergency on board the ship, and familiarizes the crew and the passengers with escape routes.
Wikipedia
Drill stem test
A drill stem test (DST) is a procedure for isolating and testing the pressure, permeability and productive capacity of a geological formation during the drilling of a well. The test is an important measurement of pressure behaviour at the drill stem and is a valuable way of obtaining information on the formation fluid and establishing whether a well has found a commercial hydrocarbon reservoir.
