Blowout preventer transfer device and method suitable for dual-wellhead drilling machine

Abstract

The invention discloses a blowout preventer transfer device suitable for a dual-wellhead drilling machine. The blowout preventer transfer device comprises a pair of longitudinal tracks and three pairs of transverse tracks. Two sets of longitudinal traveling mechanisms are installed on the pair of longitudinal tracks. Each set of longitudnal traveling mechanism comprises two pairs of longitudinal transfer racks, and a section of assisting track is fixedly connected to the lower portions of the two pairs of longitudinal transfer rack of each set of longitudinal traveling mechanism, and the two sections of assisting tracks in total, also called one pair of assisting tracks, are spaced in parallel. The three pairs of transverse tracks are upwards connected with the lower surface of a drilling machine base workbench, and as for the three pairs of transverse tracks, sequentially, each pair of transverse tracks is symmetrically arranged on the two sides of the center of the corresponding wellhead in the transverse direction. Each assisting track is sleeved with a set of transverse traveling mechanism, and each set of transverse traveling mechanism is downwards connected with a lifting mechanism. The lower ends of the lifting mechanisms of the pair of assisting tracks are jointly connected with a suspension frame. The invention further discloses a blowout preventer transfer method suitable for the dual-wellhead drilling machine. The blowout preventer transfer device is simple in structure, the method is easy to implement, and working is reliable.

Description

technical field [0001] The invention belongs to the technical field of petroleum machinery, and relates to a blowout preventer transfer device suitable for a double wellhead drilling rig, and also relates to a blowout preventer transfer method suitable for a double wellhead drilling rig. Background technique [0002] With the application of factory operations in the development of cluster wells, drilling rigs with dual wellhead operation capabilities have appeared in the petroleum exploration equipment industry. Such as figure 1 As shown, after completing the second spud drilling operation of the first well, the drilling rig can move one well position as a whole, carry out the second spud drilling operation in the second well, and simultaneously run the casing operation in the first well. The blowout preventer was installed in the third well by the injector transfer device. After the first and second wells are completed, the drilling rig will move to one well position as a...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a blowout preventer transfer device suitable for double wellhead drilling rigs, which solves the problem that the blowout preventer transfer device in the prior art can only transfer the blowout preventer to one wellhead position in one direction. Unable to meet the requirements of double wellhead drilling rig operation

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