| 摘要 |
The present invention generally relates to a method and apparatus for performing an operation in a tubular. In one aspect, a method comprises positioning an apparatus in the tubular, the apparatus having a tractor portion and an auxiliary module. The method further includes operating the tractor portion to move the apparatus through the tubular and operating the auxiliary module to perform the operation in the tubular. In another aspect, an apparatus for use in a tubular is provided. The apparatus comprises a tractor having a drive member for moving the apparatus in a desired direction, a turbine member adapted to be driven by moving fluid and a conversion member for converting movement of the turbine member to power the drive member. The apparatus further includes an auxiliary module for use in performing an operation in the tubular.
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