Pipe rod coupling detection device, winch control system comprising same and workover rig

• Main Authors: LI XIN, ZHU DEFENG, WU JINGHUA, WANG XINMING, ZHU KE, ZHOU WEIKE
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2022
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a pipe rod coupling detection device which comprises the components of a fixer which is of a hollow cylindrical structure; the at least three sensors are arranged on the same cross section of the fixator at equal intervals at the positions away from the inner wall of the fixator by a preset radial distance and are oriented towards the center of the cross section, and each sensor is configured to detect the vertical distance between the sensor and the outer surface of the pipe rod to be detected; and the controller is configured to perform summation calculation on the vertical distance detected by each sensor and compare a summation result with a theoretical value to judge whether a coupling structure appears or not. The utility model further discloses a winch control system comprising the pipe rod coupling detection device and a workover rig comprising the winch control system. According to the automatic detection device for the coupling, misjudgment of the position of the coupling