Drill string arranging method for push-supporting-type pipe string treatment equipment under top-drive-free working condition

Abstract

The invention discloses a drill string arranging method for push-supporting-type pipe string treatment equipment under the top-drive-free working condition. The drill string arranging method mainly comprises the technological processes that step 1, a large hook is connected to the lower part of a traveling block of a push-supporting-type pipe string treatment system; step 2, a drill string is lifted away from the drill floor surface by using a winch through the hook, a drill floor push-supporting arm is placed at the lower end of the drill string, and drill string arranging work is prepared; 3, the lower end of the drill string is pushed and supported to the drill string arranging position through the drill floor push-supporting arm; 4, the large hook falls through the traveling block, andthe lower end of the drill string falls to the position near the designated position; step 5, a tackle assembly of a manipulator is moved to the inner side of a track, a mechanical arm assembly extends out, and the upper end of the drill string is supported through a tong head; and step 6, the large hook falls again, the lower end of the drill string is placed in place, and meanwhile the manipulator is operated to place the upper end of the drill string to the drill string arranging position specified on a racking platform. Through two times of falling of the large hook, the offset of the upper end of the drill string in the drill string arranging process is effectively controlled, and the reliability of the drill string arranging process is improved.

Description

technical field [0001] The invention belongs to the technical field of petroleum machinery manufacturing, and in particular relates to a method for arranging drill strings of push-and-support pipe string processing equipment under the working condition of no top drive. Background technique [0002] According to the different types of drill string grasped by the manipulator of the oil drilling rig, the pipe string handling equipment can generally be divided into two types: suspension type and push-support type. The manipulator of the suspension type pipe string handling equipment can vertically grab the drill string and move it to the In the process of arranging the drill string, the manipulator mainly bears the vertical gravity of the drill string without lateral additional force; while the manipulator of the push-support pipe string processing equipment only supports the upper end of the drill string in the process of arranging the drill string, and the inclined drill string...

AI Technical Summary

Problems solved by technology

In order to avoid problems such as excessive investment, manufacturers of push-support pipe string automation processing equipment often design and manufacture in-plant test devices without a top drive system

When there is no top drive, when the drill floor pushes and supports the lower end of the drill string, the upper end of the drill string will generate a lateral force on the traveling crane system, and the traveling crane system will be pushed away from the wellhead, making the manipulator lose the ability to grasp the drill string In severe cases, it will cause overload damage to the manipulator

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