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The Xs Drill
continuous casing system, from GéoRocFor Accessories Inc. The Xs
Drill System is simple in operation and has many advantages over
conventional techniques. The same large DTH hammer is used for setting
casing and for sub-casing drilling. For example, when setting 6 5/8”
O.D> casing, a full size 6” hammer is used, instead of a 5”
hammer. This adds more blow energy and greater flushing air at depth.
The result is faster drilling and greater casing depth capability. When
the casing has been set, the same 6” hammer and special 6” diameter
drill bit (Square Bit ™) can be passed through the casing crown to
continue drilling to a 6” diameter hole to the desired sub-casing
depth.
The Xs
Drill system consists of just three components, the driver bit,
crown bit, and the Square Bit ™. When you consider all of the
advantages to this overburden drilling system, why use anything else?
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