Method of Retrieving a Flow Back Jet Pump from an Oil Well
AssigneeTech Flo Consulting, LLC
InventorsWilliam J. Jackson, Erik J. Reissig
Life of this patent
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Abstract
A jet pump assembly is adapted to be releasably attached to a tubular member of a tubular string in an oil well. The jet pump may be pumped out of the tubular string to the surface by a reverse flow of power fluid down the well between the tubular string and the casing of the well. Consequently the jet pump may be serviced or reconfigured to a direct pumping mode without the necessity of a wire line or other apparatus. An attachment tool is provided that attaches to a fishing neck on the jet pump and also includes a plurality of seal cups. The attachment tool includes a rod which is adapted to release a locking mechanism positioned in the jet pump.
Claims5
A method of retrieving a jet pump from an oil well, the jet pump including a locking mechanism to prevent upward movement of the jet pump within the well and a fishing neck comprising;
- a) pumping down into the well an attachment tool having laches for engagement with the fishing neck of the jet pump,
- b) unlocking the locking mechanism of the jet pump,
- c) attaching the attachment tool to the fishing neck of the jet pump,
- d) pumping up the attachment tool and jet pump to a top portion of the oil well.
Dependencies are inferred from the claim text.