POWER RETRIEVING TOOL
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United States of America Patent
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N/A
Issued Date -
May 28, 2015
app pub date -
Nov 19, 2014
filing date -
Nov 25, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Apparatuses and methods for retrieving a tool or bottom hole assembly. The apparatus may include a latching device that couples to a tool or bottom hole assembly to be retrieved and at least one seal extending radially from the apparatus to engage an inner diameter of a tubular, such as a casing string. A pump inlet is disposed in or through an outer surface of the apparatus uphole of the at least one seal. A pump outlet is disposed in or through an outer surface of the apparatus downhole of the at least one seal. The apparatus may also include a pump for pumping a drilling fluid from the pump inlet to the pump outlet in order to generate a differential pressure across the at least one seal and provide a hydraulic force to effect retrieval of the tool or bottom hole assembly.
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