Well fishing method and system
AssigneeHydrus, Inc.
InventorAlbert P. Davis
Life of this patent
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Abstract
A well fishing method and system is described. In at least one example of the invention, a method of retrieval of material (e.g., a tubing string) having broken control or monitoring lines from a cased well is provided. The method comprises: isolating, from the well casing, broken lines above the material to be retrieved, thereby creating a substantially axial work passage; grasping the material to be removed through the substantially axial work passage; and pulling the material to be retrieved and the restrained lines from the well. Example shrouds, probes and other members are also described.
Claims6
A method of retrieval of material, having broken lines above the material, from a cased well, the method comprising:
- isolating, from the well casing, the broken lines above the material to be retrieved, thereby creating a substantially axial work passage;
- grasping the material to be removed through the substantially axial work passage;
- and
- pulling the material to be retrieved from the well;
- wherein said isolating comprises:
- lowering, into the well, a shroud having a lower splayed end, wherein the outer diameter of the splayed end is sized to the inner diameter of the casing of the well and the lines such that the gap between the casing and the splayed end is less than the thickness of the lines;
- rotating in an oscillatory motion the lower splayed end at least a portion of the time when the lower splayed end is in contact with at least one of the broken lines;
- covering at least a portion of the material to be retrieved with the shroud;
- and
- resting the shroud on the material to be retrieved.
Dependencies are inferred from the claim text.