Running A Drill String
Most components in a drill string are manufactured in 31 foot lengths (range 2) although they can also be manufactured in 46 foot lengths (range 3). Each 31 foot component is referred to as a joint. Typically 2, 3 or 4 joints are joined together to make a stand. Modern onshore rigs are capable of handling ~90 ft stands (often referred to as a triple).
Pulling the drill string out of or running the drill string into the hole is referred to as tripping. Drill pipe, HWDP and collars are typically stood back in stands in the derrick if they are to be run back into the hole again after, say, changing the bit. The disconnect point ("break") is varied each subsequent round trip so that after three trips every connection has been broken apart and later made up again with fresh pipe dope applied.
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Famous quotes containing the words running a, running, drill and/or string:
“Gossip is news running ahead of itself in a red satin dress.”
—Liz Smith (b. 1923)
“Swan/Mary Rutledge: Oh no, no. I’m not running away. I came here to get something, and I’m going to get it.
Col. Cobb: Yes, but San Francisco is no place for a woman.
Swan: Why not? I’m not afraid. I like the fog. I like this new world. I like the noise of something happening.... I’m tired of dreaming, Colonel Cobb. I’m staying. I’m staying and holding out my hands for gold—bright, yellow gold.”
—Ben Hecht (1893–1964)
“Swift blazing flag of the regiment,
Eagle with crest of red and gold,
These men were born to drill and die.
Point for them the virtue of slaughter,
Make plain to them the excellence of killing
And a field where a thousand corpses lie.”
—Stephen Crane (1871–1900)
“The string quartet plays for itself,
gently, gently, sleeves and waxy bows.”
—Anne Sexton (1928–1974)