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
Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 2...If you fail to notify the Coast Guard of an oil spill, you may be imprisoned up to ____________.You will be advised of any hazardous areas due to the fallout of a nuclear explosive by a message wi...A relative bearing is always measured from __________.As you hold a piece of manila line vertically in front of you, the strands run from the lower right ...