Self-elevating mast employing drive carriage
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United States of America Patent
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Aug 16, 2016
Grant Date -
Mar 19, 2015
app pub date -
Nov 20, 2014
filing date -
Mar 13, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A method includes attaching a carriage support to a platform, the platform comprising a platform floor having an opening therein, with the carriage support located proximate the opening, attaching a drive carriage to the carriage support, and operably coupling to the drive carriage a first mast section of a mast comprising a plurality of mast sections, and wherein the first mast section is located above the opening. The method also includes arranging a second mast section below the first mast section, lowering, using the drive carriage, the first mast section through the opening, attaching the first mast section to the second mast section, and raising, using the drive carriage, the first mast section and the second mast section through the opening. In an exemplary embodiment, the platform floor is a rig floor.
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