Adjustable bearing section core barrel
Patent
·
OSTI ID:5623810
An apparatus is described in a coring tool including an outer tube and inner tube consisting of: cartridge cap means disposed in the outer tube and longitudinally adjustable within the outer tube, the inner tube coupled to the cartridge cap means; and locking means for locking the cartridge cap means within the outer tube in a selected longitudinal position therein. The cartridge cap means comprises locking fingers defined at an upper end of the cartridge cap means, the locking fingers being formed in a cylindrical open array, and wherein the locking means comprises a jam nut axially disposed within the cylindrical array of locking fingers and coupled thereto, the jam nut having an exterior frustoconical shape, the jam nut radially expanding the fingers, as the jam nut is selectively longitudinally displaced with respect to the plurality of fingers. The longitudinal placement of the inner tube within the outer tube is selectively adjustable and lockable without disassembly of the coring tool.
- Assignee:
- Norton Christensen Inc., Salt Lake City, UT
- Patent Number(s):
- US 4580643
- OSTI ID:
- 5623810
- Country of Publication:
- United States
- Language:
- English
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