Solinst Canada Limited

John Howard Parent

Jamieson Edward Champ

James Gerard Pianosi

The borehole packer is for sealing the annular space around a pipe in a borehole. The packer is pre-manufactured, in-factory. To give the packer the rigidity it needs for handling and transport, the packer is built around an inner sleeve of rigid (metal) mesh. Alternatively, the packer may be built around a cardboard tube, which is discarded as the packer is assembled onto the pipe. When the packing material is bentonite, the bentonite may be compression-moulded into annular-rings, and the packer is built up from the rings.

Expandable borehole packer

The packer includes the usual outer bladder, which is inflated against the sides of the borehole, to seal around a work-pipe. But the packer also includes an inner bladder. The packer is mechanically secured to the work-pipe by the grip of the inner bladder around the work-pipe. The inner bladder is sucked outwards by a vacuum pump, to enable the packer to be moved along the work-pipe. The same port through which vacuum was admitted to the inner bladder can then be used to admit pressurized fluid to the outer bladder.

Growing community of inventors

Brampton, Canada

John Howard Parent