What is aPI pup joint?
API pup joint is a short casing or tubing used for handling production tubing assemblies and for spacing out full length tubing and casing strings. Pup joints are also known as saver sub, spacer and pup.
How much does a pup joint weight?
Its weight depends on its size - length, outside diameter, and wall thickness. Small-diameter joints can weigh 100 pounds or less.
Why is it called a pup joint?
It gets its name from the fact that they are much shorter than the "parent" joints of drill pipe or casing that make up the majority of the string. Like a puppy is much smaller than a full grown dog, a joint is much shorter than a typical 30-40 foot length of drill pipe.
What are the specs of a pup joint?
Sizes: 2 ⅜" – 4 ½" Weight: Standard or Requested Weights. Typical Lengths: 1, 2, 3, 4, 6, 8, 10, 12' (other lengths available upon request) Grades: J-55, N-80, L-80, P-110.
How long is a section of drill pipe?
Conventional drill pipe comes in sections that make up drill strings. While most are cut in 31-foot sections, they can range from 18-45 feet in length. Heavy drill pipes are tubular pieces that add weight or serve a transitional purpose in the drill string.
