E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/00 (2006.01)
Patent
CA 2326268
An apparatus for axially displacing a downhole tool or a tubular in a well bore equipped with a wellhead is described. The apparatus includes a lifting mechanism such as an hydraulic cylinder or a mechanical jack that is connected to a lift rod string. The lift rod string includes a latch for engaging the tubular or the downhole tool. The apparatus further preferably includes a motor for rotating the lift rod string to permit rotationally releasable downhole equipment to be released by rotational movement of the lift rod string. The apparatus is also useful for removing obstructions in a casing of the well bore, and for removing soluble solids from a tubular in the well bore. The advantage is a simple, light weight, lifting apparatus that is versatile, yet inexpensively manufactured and readily transported from one wellhead to another.
Haynes Michael Jonathon
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
LandOfFree
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