PACKER COMPACTION ASSEMBLY Russian patent published in 2004 - IPC

FIELD: oil extractive industry.

SUBSTANCE: device has cylindrical body with moveable and fixed stops mounted on it and strut disk springs consecutively located between them, as well as moveable support washers. Contact surfaces of moveable and fixed stops and moveable support washers are directed towards each other in pairs and made in conical shape. Inner ends of strut disk springs are made rounded-off with forming of watertight pairs like "torus along cone". Outer ends of strut disk springs are made slanted in form of ring-shaped cutting edges, which form a watertight compaction and anchor connection during interaction with inner surface of casing pipe.

EFFECT: preservation of compaction reliability at practically any level of inner well temperatures, providing for resistance of compacting elements to effect of well fluid and combination of functions of compacting and anchoring in one assembly.

4 dwg