Drill pipe positioning, assembling and disassembling calipers

Abstract

Drill pipe positioning, assembling and disassembling calipers belong to the mechanical field of oilfields. Due to the drill pipe positioning, assembling and disassembling calipers, working time of workers at a wellhead is shortened as much as possible, the distance from the workers to equipment at the wellhead is lengthened during operation, drill pipe assembling and disassembling precision is improved, and the drill pipe positioning, assembling and disassembling calipers can replace manual drill pipe assembling and disassembling operation. The drill pipe positioning, assembling and disassembling calipers consist of an assembling and disassembling portion, a positioning portion and an auxiliary portion. The drill pipe positioning, assembling and disassembling calipers not only meet requirements of reducing oil and gas well production costs and increasing engineering quality, but also meet requirements of guaranteeing personal safety of the oil workers and increasing working conditions of the workers. The drill pipe positioning, assembling and disassembling calipers can replace manual drill pipe assembling and disassembling operation. By the aid of existing mature technology, two sets of hydraulic calipers grip and tighten a drill pipe, the horizontal positions of the calipers are controlled by two axial lead screws, displacement is monitored by inductive guide tracks, and an effect of automatically assembling and disassembling the drill pipe is achieved.

Description

technical field [0001] The invention belongs to the field of oilfield machinery. Background technique [0002] The drill pipe loading and unloading operation of oil and gas drilling is mainly carried out by manpower. The oil drill pipe is suspended above the wellhead by the derrick. The oil workers will straighten the drill pipe to the correct position, and manually install the drill pipe and the next-level drill pipe turnbuckle in place. This method of operation not only requires high-intensity physical labor, but the installation accuracy depends on the operator's level of operation, and it is also very dangerous. [0003] In the current drilling operation, the drill pipe is generally hoisted to the top of the wellhead rotating mechanism, and several technicians hand-hold it to align the thread, position it with the help of tongs, and manually tighten it to the next level of drill pipe for drilling operations. This way of working requires a lot of physical labor, and a lo...

AI Technical Summary

Problems solved by technology

poor security

On the one hand, if a blowout occurs in the drilling, it is easy to cause injury to the workers working at the wellhead; on the other hand, if the heavy drill pipe falls sideways or falls, it will also pose a major threat to the life safety of the workers below.

Safety accidents at the wellhead of the drilling platform are unpredictable and unavoidable. Even if the operating procedures are strictly followed in the production process and the equipment parts are manufactured up to the standard, there are still uncontrollable geological factors or other natural factors that can cause safety accidents

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