Movable drill pipe lay-down machine for oil field drilling and workover

Abstract

A movable drill pipe lay-down machine for oil field drilling and workover comprises a drilling and workover platform, a left drill pipe vertical storage box, a grabber, a lay-down machine body, a right drill pipe vertical storage box, a track frame, a track base, a rotary frame, a transfer track frame and a ramp. The lay-down machine body can travel from the track frame to the rotary frame and then travel from the rotary frame to the transfer track frame, and thus the lay-down machine body is evacuated conveniently, a construction passage is available, and other work can be performed conveniently. The left side and the right side of the track base are each provided with two flat clamping blocks. The transfer track frame can be conveniently dismounted from the right side of the track base and then installed on the left side of the track base. The drilling and workover platform can be arranged more reasonably, so that construction is facilitated. An elastic pressing device is installed behind the grabber, and grabbed drill pipes can be concentric with a borehole when the grabber is centralized. The lay-down machine body is evacuated conveniently and rapidly in a time and labor saving mode, working efficiency is high, the labor intensity of operators is relieved, the rescue passage can be available in time, blowout accidents are prevented, and economic benefits and social benefits are remarkable.

Description

technical field [0001] The invention belongs to the field equipment for drilling and repairing wells in oil fields, and relates to a movable drilling rod discharging machine for drilling and repairing wells in oil fields. Background technique [0002] In the process of drilling and repairing wells in the oil field, it is necessary to carry out the work of tripping the drill pipe, which is to lift the drill pipe out of the well and then move the drill pipe into the drill pipe vertical storage box. Move from the drill pipe stand to the wellhead. This work is currently done by the discharge machine. Since the layout and functional areas on the drilling and workover platform are fixed, the discharge machine can only be installed between the two drill pipe vertical storage boxes on the drilling and workover platform, and other work is required instead of tripping and unloading the drill pipe. At that time, the location of the discharge machine blocked the construction passage, ...

AI Technical Summary

Problems solved by technology

This method is time-consuming and labor-intensive, the labor intensity of the operators is high, and the work efficiency is low. In case of a blowout and emergency rescue is required, the rescue channel cannot be opened in time, which will cause a major blowout accident.

Because the gripper on the existing discharge machine needs to meet the requirements of drill pipes with different diameters, the inner ring of the gripper is generally designed to be larger, so that the drill pipe can move freely in the gripper, and the concentricity between the drill pipe and the wellbore cannot be guaranteed. Make stabbing between drill pipes difficult

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