Impregnated Diamond Reaming Shell
Wireline & Conventional Core Barrels
Diamond Drilling
Diamond reaming shells are connected
& worked together with bits. Its main
functions are maintaining borehole
gage, improving rods string stability and
protecting lower rods string from
excessive wear.
Reaming shells are also classified into different types, lengths and rings according to different series and applications. Reaming shells are classified into categories of wireline core drilling & conventional core drilling of double tubes & single tube.
There are mainly two types: impregnated reaming shell & surface-set reaming
shell. And reaming shells can be made into 2, 3 & 4 matrix rings.
There are also front reaming shell & back
reaming shell. The front reamer is
connected with bit at front end of core
barrels, and back reamer is the locking
coupling with matrix ring at back end of
core barrels.