Oil and Gas Glossary
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J
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joint |
A length of pipe, casing, or tubing usually from 20 to 30 feet long. On drilling rigs, drill pipe and tubing are run the first time (lowered into the hole) one joint at a time. When pulled out of the hole and stacked in the rig, they are usually pulled two, three, or four at a time depending upon the height of the derrick. These multiple-joint sections are called stands. |
junk |
Anything in the wellbore that is not supposed to be there. The term is usually reserved for small pieces of steel such as hand tools, small parts, bit nozzles, pieces of bits or other downhole tools, and remnants of milling operations. |
junk basket |
(1) A device made up on the bottom of the drill stem to cut a core into the bottom of the hole on which junk rests. As the core is cut, the junk enters a barrel in the tool and is held by metal projections, or catchers. When the basket is brought back to the surface, the junk is removed with the core. |
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