Expandable borehole packer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 24, 2003
Grant Date -
N/A
app pub date -
Sep 28, 2000
filing date -
Sep 30, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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