Path detection mechanism

Abstract

The invention discloses a drift diameter detection mechanism which comprises a handle (3), a first semicircular cylinder (4), a second semicircular cylinder (5), a third semicircular cylinder (6), a fourth semicircular cylinder (7), an upper semicircular steel column (1) and a lower semicircular steel column (2). One edge of the upper semicircular steel column (1) is movably connected with one edge of the lower semicircular steel column (2). The first semicircular cylinder (4) and the third semicircular cylinder (6) are fixed to the two ends of the upper semicircular steel column (1) respectively, the second semicircular cylinder (5) and the fourth semicircular cylinder (7) are fixed to the two ends of the lower semicircular steel column (2) respectively, and the handle (3) is connected between the end face of the third semicircular cylinder (6) and the end face of the fourth semicircular cylinder (7). By means of the structure, the inner diameter of an oil tube and the inner diameter of a sleeve can both be detected, the maximum geometric sizes of objects capable of passing through the deformed oil tube and the deformed sleeve can be detected, the multiple functions are achieved through one tool, and well repairing work detection is conveniently achieved.

Description

technical field [0001] The invention relates to the field of petroleum machinery detection, in particular to a diameter detection mechanism. Background technique [0002] The oil pipe is a pipeline that transports crude oil and natural gas from the oil and gas layer to the surface after the drilling is completed, and it is used to withstand the pressure generated during the production process. The sleeve is a piece of pipe that is set outside other shafts or rod parts. It also has many functions. It has different functional requirements according to different environments. It is used as a protective sleeve for shafts or rod parts and a support sleeve for support. Tubes, and some sleeves can also be used as sliding bearings, which are essential components in pipeline connections in the petroleum field. In the construction of oil well operations, in order to ensure that the inner diameter of the tubing and casing in the well meets the design requirements, the inner diameter d...

AI Technical Summary

Problems solved by technology

The currently used diameter gauges can only test the inner diameter of the tubing alone, or can only test the inner diameter of the casing to determine whether the inner diameter meets the standard, and cannot detect the maximum geometric size that the deformed tubing or casing can pass , which brings inconvenience to the detection of workover operations

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