Expandable earth boring apparatus using impregnated and matrix materials for enlarging a borehole
A tool for enlarging a borehole that includes an elongated tubular body; at least one movable arm affixed to the tubular body, the at least one movable arm comprising an outer surface formed of at least one of a matrix material and an abrasive material; and at least one actuating member for expandin...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
21.06.2011
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| Online Access | Get full text |
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| Summary: | A tool for enlarging a borehole that includes an elongated tubular body; at least one movable arm affixed to the tubular body, the at least one movable arm comprising an outer surface formed of at least one of a matrix material and an abrasive material; and at least one actuating member for expanding at least one movable arm from the collapsed state to an expanded state is disclosed. |
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