A type of well drilling device on an oil or gas drilling rig that employs a section of pipe with a polygonal or splined outer surface.
Search words containing
5-letter words containing n
5-letter words containing o
5-letter words containing r
5-letter words containing p
5-letter words starting with t
5-letter words starting with p
5-letter words starting with k
5-letter words starting with e
5-letter words in the middle l
5-letter words in the middle y
5-letter words in the middle i
5-letter words in the middle c
5-letter words in the middle o
5-letter words ending with n
5-letter words ending with h
5-letter words ending with m
5-letter words ending with t
5-letter words excluding a
5-letter words excluding i
5-letter words excluding r
5-letter words excluding n
5-letter words excluding p
Related topics