A frame with two, or sometimes four, arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the _______.
A
drill stem guide
B
guide frame
C
drill string frame
D
casing guide
E
İlgili Sorular
The first point of Aries is the point where the Sun is at __________.You are on a vessel that has a metacentric height of 4 feet, and a beam of 50 feet. What can you exp...A vessel that tows astern must have a/an ___________ .Yesterday your chronometer read 11h 59m 59s at the 1200 GMT time tick. Today the chronometer reads ...The effects of free surface on initial stability depend upon the dimensions of the surface of the fr...