Downhole sealing tool
AssigneeSchlumberger Technology Corporation
InventorOscar RIVAS DIAZ
Life of this patent
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Abstract
A sealing tool for conveyance within a tubular member within a wellbore extending into a subterranean formation. The sealing tool includes a mandrel and a eutectic sealing material disposed about the mandrel. The eutectic sealing material has a eutectic temperature at which the eutectic sealing material melts. The sealing tool also includes means for heating the eutectic sealing material to at least the eutectic temperature. The eutectic sealing material is transferred onto an inner surface of the tubular member by activating the heating means to heat the eutectic sealing material to at least the eutectic temperature to melt the eutectic sealing material.
Claims35
An apparatus, comprising:
- a sealing tool for conveyance within a tubular member within a wellbore extending into a subterranean formation, wherein the sealing tool comprises:
- a mandrel;
- a eutectic sealing material disposed about the mandrel, wherein the eutectic sealing material has a eutectic temperature at which the eutectic sealing material melts;
- and
- means for heating the eutectic sealing material to at least the eutectic temperature.
A method, comprising:
- conveying a sealing tool within a tubular member within a wellbore extending into a subterranean formation, wherein the sealing tool comprises:
- a mandrel;
- a eutectic sealing material disposed about the mandrel, wherein the eutectic sealing material has a eutectic temperature at which the eutectic sealing material melts;
- and
- means for heating the eutectic sealing material to at least the eutectic temperature;
- and
- transferring the eutectic sealing material onto an inner surface of the tubular member by activating the heating means to heat the eutectic sealing material to at least the eutectic temperature to melt the eutectic sealing material.
Dependencies are inferred from the claim text.