Casing shoe
Encyclopedia
In oil drilling and borehole mining
, a casing shoe or guide shoe is a bull-nose shaped device which is attached to the bottom of the casing string
. A casing hanger
, which allows the casing to be suspended from the wellhead, is attached to the top of the casing.
Borehole mining
Borehole Mining is a remote operated method of extracting mineral resources through boreholes by means of high pressure water jets...
, a casing shoe or guide shoe is a bull-nose shaped device which is attached to the bottom of the casing string
Casing string
Casing string is a long section of connected oilfield pipe that is lowered into a wellbore and cemented. The pipe segments are typically about in length, male threaded on each end and connected with short lengths of double-female threaded pipe called couplings...
. A casing hanger
Casing hanger
The casing hanger is that portion of a wellhead assembly which provides support for the casing string when it is lowered into the wellbore. It serves to ensure that the casing is properly located. When the casing string has been run into the wellbore it is hung off, or suspended, by a casing...
, which allows the casing to be suspended from the wellhead, is attached to the top of the casing.