CPC E21B 21/003 (2013.01) [E21B 17/1078 (2013.01); E21B 33/138 (2013.01); E21B 34/14 (2013.01); E21B 37/00 (2013.01)] | 11 Claims |
1. A tool for use in drilling operations comprising:
a cylindrical tool body having connecting portions at first and second ends thereof for connection of said tool body into a drill string;
a central bore extending through the tool body from said first end to said second end;
a port extending through said tool body and providing fluid communication between said central bore and an external environment outside of said tool; and
a displaceable cover slidably positioned within the central bore, movable from a first position in which said cover sealingly closes and prevents fluid communication through said port, to a second position in which said port is open for allowing said fluid communication between said central bore and an external environment outside of said tool,
wherein said tool body is configured to receive a container comprising a sealant, and
wherein said container, when received by said tool body, displaces said displaceable cover from said first position to said second position.
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