Fast positioning device for derrick moving

Abstract

The invention belongs to the field of petroleum equipment, and particularly relates to a fast positioning device for derrick moving. The fast positioning device for derrick moving is characterized inthat a derrick supporting seat can move in the transverse direction and the longitudinal direction of a chassis vehicle, and the derrick supporting seat integrates a blowout preventer group; and the blowout preventer group can lift, move and rotate around the center of the blowout preventer group, and a lifting cylinder of a derrick is supported on the derrick supporting seat, moves along with thesupporting seat and keeps unchanged relative to the position of the derrick. According to the fast positioning device for derrick moving, well opening aligning is conducted by adjusting the front, back, left and right positions of the derrick on a vehicle, fast and accurate positioning is achieved, in conclusion, a derrick supporting seat structure has the advantages of being reasonable in design, convenient and reliable to use, precise in positioning, automated in control and the like, the derrick can be fast aligned with a well opening, meanwhile, the well opening blowout preventer group isfixed to a fast positioning device, a telescopic liquid cylinder is collected during transported, the blowout preventer group is transported along with the vehicle, the efficiency of workover preparation work is improved, and the labor intensity of operators is reduced.

Description

technical field [0001] The invention belongs to the field of petroleum equipment, in particular to a fast moving positioning device for a derrick. Background technique [0002] In the traditional oilfield workover operations, the wellhead alignment of the workover rig is a key step to ensure the workover operation. The current practice is that the workover rig arrives at the well site, and the driver visually observes the position of the wellhead and drives the vehicle to move back and forth, left and right to realize the workover Wellhead alignment, this method requires constant adjustment of the vehicle position, difficult operation, poor precision, and low efficiency, and often takes half a day to adjust the vehicle position. At present, there is no good technology to solve such problems. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mechanism for quickly aligning the wellhead of the derrick so as to impro...

AI Technical Summary

Problems solved by technology

[0002] In the traditional oilfield workover operations, the wellhead alignment of the workover rig is a key step to ensure the workover operation. The current practice is that the workover rig arrives at the well site, and the driver visually observes the position of the wellhead and drives the vehicle to move back and forth, left and right to realize the workover Wellhead alignment, this method requires constant adjustment of the vehicle position, difficult operation, poor precision, and low efficiency. It often takes half a day to adjust the vehicle position. At present, there is no good technology to solve such problems

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