Earth loop installed with sonic apparatus

Wells – Processes – Cementing – plugging or consolidating

Reexamination Certificate

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Details

C165S045000, C166S302000, C175S056000, C175S057000

Reexamination Certificate

active

07093657

ABSTRACT:
A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by the sonic drill head to drill the borehole, pumping fluid into the casing and up to earth surface in an annular space in the borehole so that drilled material flows to the earth surface, lowering a heat exchange pipe loop having a lowermost U/bend member down into the casing, introducing grout into the casing around the heat exchange pipe loop, and extracting the casing from the borehole.

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