Device and method for conveying pipe column to center of wellhead in horizontal state

Abstract

The invention discloses a device for transporting pipe strings from a horizontal state to the center of the wellhead, which comprises a plurality of pipe racks arranged outside the catwalk body, and each pipe rack is hinged with a pipe rack liquid cylinder; An inclined beam is hinged on the inner side of the catwalk frame body corresponding to the pipe rack, and the inner end of each inclined beam is hinged with a flip tongue platform, and the front end of the inclined beam is also placed with a support bar; The liquid cylinder is hinged to the frame of the catwalk; the inner end of each inclined beam is hinged to the end of the piston rod of the liquid cylinder along the tongue table and the flip tongue table; The outer ear seat at the lower end is hinged with the catwalk frame through the large arm hydraulic cylinder, the ear seat at the upper end of the large arm is hinged with the forearm, the small arm hydraulic cylinder is also hinged between the small arm and the large arm, and the small arm is equipped with multiple claws. The invention also discloses a method for pipe column delivery. The device and method of the invention have simple structure and high working efficiency.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling equipment, and relates to a device for transporting a pipe string from a horizontal state to the center of a wellhead, and also relates to a method for carrying out pipe string transportation. Background technique [0002] Pipe string conveying operation is the process of conveying various pipe strings from the ground to the drilling floor or completing the reverse transportation during oil drilling. At present, there are two commonly used pipe string transportation operations: one is to use the wind winch to pull the steel wire rope along the ramp to drag the pipe string up and down the drilling floor, which is less efficient; the other is to use the power catwalk to transport pipe column, higher efficiency. After these two methods transport the pipe string to the drilling floor, the floating lifting system of the drilling rig needs to go down and approach the drill floor elevator to ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device for transporting the pipe string from the horizontal state to the center of the wellhead, which solves the problem of the time taken for the hoisting and lowering of the elevator to fasten the pipe string traveling crane system when the existing pipe string is transported, which affects the drilling operation efficiency problem

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