Iron roughneck makeup-breakout torque testing method

Abstract

The invention discloses an iron roughneck makeup-breakout torque testing method. The method comprises steps: a hydraulic pressure control mechanism connected with the iron roughneck is started, the iron roughneck is operated to adjust the position of each clamp body assembly of the iron roughneck, the back-up wrench of the iron roughneck clamps a lower simulation drilling tool, a clamping clamp or a fastening clamp of the iron roughneck clamps an upper simulation drilling tool, and torque test is chosen to be carried out on the clamping clamp or on the fastening clamp according to test demands; a static torque sensor transmits data signals to a data acquisition mechanism in real time, and the data acquisition mechanism stores and displays a well-processed torque value; and in the case of test, the back-up wrench clamps the lower simulation drilling tool, the clamping clamp is rotated to obtain a torque value which is the torque value of the clamping clamp of the iron roughneck, and the fastening clamp is rotated to obtain a torque value which is the torque value of the fastening clamp of the iron roughneck, and the test is completed. By using the method of the invention, the actually-outputted makeup-breakout torque values when the iron roughneck operates can be accurately tested.

Description

technical field [0001] The invention belongs to the technical field of oil drilling and production equipment, and relates to a method for testing iron driller's make-up and breakout torque. Background technique [0002] The iron drill is an important tool for making up and breaking out drilling tools in the process of automatic drilling. Its one-button automatic operation mode greatly improves the safety of drilling operations and reduces the labor intensity of drilling operations. It is extremely important to accurately control the torque value of the iron driller during the drilling process. Excessive torque will damage the surface of the drilling tool and reduce the service life of the drilling tool. If the torque is too small, the drilling tool will not be tightened tightly and cannot be unloaded, which will affect the drilling efficiency. Iron drillers have three torque-applying devices, which are back vise, clamping pliers and turnbuckle pliers. The back vise plays the...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a test method for iron driller's make-up and breakout torque, which solves the problem that there is a large error between the torque value and the actual torque value obtained according to the pressure conversion of the hydraulic system in the prior art, which cannot accurately reflect the iron driller's torque. The actual output torque value of the problem

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