Multifunctional downhole tool maintenance assembling rack and using method

Abstract

The invention discloses a multifunctional downhole tool maintenance assembling rack and a using method. The multifunctional downhole tool maintenance assembling rack includes a main body, wherein a min clip assembly and a back-up clip assembly are arranged on a guide rail on the front part of the main body, a trailer connected to a first hydraulic winch and a second hydraulic winch through a wirerope is arranged on the rear part of the main body, and a liftable supporting rack is arranged between the back-up clip assembly and the trailer; and the main clip assembly, the back-up clip assembly,a torque controlling and collecting system on the back-up clip assembly, the first hydraulic winch, the second hydraulic winch, the trailer, a push-pull effort data collecting system on the trailer,a hydraulic control device of the main body and the guide rail are connected with a hydraulic control platform through a hydraulic line, and the hydraulic control platform is provided with a control panel and a data displaying device for the torque controlling and collecting system. The multifunctional downhole tool maintenance assembling rack has the advantages that continuous long distance push-pull operation can be horizontally realized for a long tubular column tool above 10 m, assembly speed and data monitoring and collecting are accurately controlled, threaded connection between a downhole tool with a part is convenient, and then screw-on torque of thread during screwing on and off is controlled, the current situation of muti-player collaboration is improved, thus labour intensity isreduced, and the work efficiency is improved.

Description

technical field [0001] The invention relates to the technical fields of oil drilling and natural gas well completion, and more specifically, the invention relates to a multifunctional downhole tool maintenance assembly frame suitable for assembly and maintenance of well completion sand control service tools. Background technique [0002] At present, in domestic and foreign oil drilling and production industries, due to the limitation of wellbore space, downhole tools are usually set as slender parts with connecting threads between parts. Such an arrangement has two functions: one is to provide sufficient connection strength; the other is to provide reliable sealing. Generally speaking, downhole tools need to be lowered into the ground for several thousand meters, and need to withstand high pressure, tension, compression, and torsional loads. Therefore, there are special standards for the connecting threads between parts. For threads of different specifications and buckle typ...

AI Technical Summary

Problems solved by technology

[0004] (1) Continuous long-distance push-pull operation in the horizontal direction cannot be realized for long-string downhole tools longer than 10 m, which makes it difficult to assemble long-string downhole tools, and the manual operation of forklifts and pipe wrench not only has safety risks, but also is difficult to guarantee Assembly accuracy and assembly quality

[0005] (2) Only the threaded connection between parts of the downhole tool can be realized, but the twisting torque when the thread is threaded and undone cannot be controlled. In order to ensure the reliable and effective performance of the downhole tool, the downhole tool that has been connected must be transferred to the Strength inspection of tension, compression and torsion on other inspection equipment

[0006] (3) The maintenance and assembly process of downhole tools requires the cooperation of multiple people, which is labor-intensive and low-efficiency

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