| 摘要 |
A fluid conduit sheath for a wellbore tractor can provide transportation of a working fluid external to a wellbore tractor in a downhole environment. The fluid conduit sheath can further provide cooling to electrical devices in the wellbore tractor. The fluid conduit sheath can be configured to be disposed around the body of the wellbore tractor, defining a fluid conduit between the sheath and the wellbore tractor. Spacers can be used to maintain the position of the sheath relative to the tractor and also to couple the tractor to the sheath. The fluid conduit sheath can be advantageous in tractors whose internal components substantially preclude the use of an internal fluid conduit, such as tractors with electrically-actuated grippers.
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