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The Drillers Club
The drillfloor with its
associated equipment is designed for sole purposes of drilling
and if productive completing oil or gas wells, a well designed
drillfloor should have a simple layout with plenty of working
space. The Drill Floor is the heart of drilling rig and is
also referred to as the Rig Floor. It is here where the drill
string and drilling bit, and various other tools are connected
together and tested before its trip into the hole.
When drilling, the tools used are
made up as the BHA (Bottom Hole Assemble) and transported
into the hole using a drill string, (Drill Pipe) however once on
bottom the BHA can be dived into two sections,
a), to apply weight to the drill
bit, the weight applied to the bit is a proportion of the weight
that is made up from the drill collars that are picked up to
form the BHA, The BHA can consist of many tools and subs, most
are installed in the lower 90 feet and are spaced out using
drill collars, other drill collars and Heavy weight drill pipe
are installed that maybe used to add weight to the bit or:
b). to keep the drill string in
tension , traditionally the drill string is made up of drill
pipe and once picked up will be run into the hole in stands,
one stand of drill pipe is normally 3 joints of pipe of an
average length of 31.2 feet, hence an average stand would be 93
+/- feet
Why make the drill string up into
stand, the truth is that no drill bit or tool will last forever,
therefore once the bit or tool is dull it will have to be
removed from the well and a new one run back in, to do this the
string has to be pulled from the hole (tripped) the pipe is
racked back as stands The stands are stored in the set back area
of the rig floor and held in place by the finger board mounted
85 feet up in the derrick
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