| 摘要 |
The present invention provides a more stable vertical lift structure that raises pre-assembled equipment with increased flexibility in the positioning in relation to the well head location. The invention includes pre-assembled drilling and well-head equipment, such as a blow-out preventer, a lubricator and a stripper, supported by a vertical support structure, all of which is transported to the drilling site on a trailer assembly. The pivot point for the pre-assembled equipment is placed on a rail transport mounted on the trailer assembly, and the pivot point is laterally pushed to a locking point on the rail assembly before the pre-assembled equipment is vertically raised to its vertical alignment near the well head. After being raised to its vertical alignment position, the pre-assembled equipment can be placed over the well head at the drilling site, which reduces the time needed for assembly of the equipment. Further, by positioning the pre-assembled equipment using the rail transport, there is greater flexibility in positioning the trailer relative to the well head and the vertical alignment operation can be conducted with increased stability compared to known oil and gas exploration transport assemblies.
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