Device and method for measuring contour line of pipe wall thickened section of drill rod

Abstract

The invention discloses a device for measuring a contour line of a pipe wall thickened section of a drill rod. The device comprises a measuring platform and a control part; a tensile displacement sensor, a tilt sensor and a stepper motor are arranged on the measuring platform; the control part comprises a lower computer, an upper computer, a display and a control panel; the lower computer is respectively connected with the upper computer, the display and the control panel simultaneously; and the lower computer is also connected with the tensile displacement sensor, the tilt sensor and the stepper motor simultaneously. The invention also discloses a method for measuring the contour line of the pipe wall thickened section of the drill rod. The method comprises the following steps of: measuring original data consisting of a linear displacement quantity and an angular displacement quantity by using the device to obtain a set of linear displacement-angular displacement coordinate data points at each sampling moment; connecting the series of coordinate points in sequence to form a measurement contour of the section to be measured of a bus of the drill rod; and performing data processingto obtain a measurement value of the contour line of the pipe wall thickened section of the drill rod. By the device and the method, the precision is guaranteed, and the measurement efficiency is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of measurement, and relates to a measuring device for the contour line of the thickened section of the pipe wall of a drill pipe, and also relates to a method for measuring the contour line of the thickened section of the pipe wall of the drill pipe. Background technique [0002] At present, the exploitation of oil has basically entered the period of deep mining. In addition, with the development of drilling technology and the intensification of oil exploration and development, the drilling workload of complex wells is showing an increasing trend year by year, and the accompanying failure accidents of drilling tools happens sometimes. The occurrence of drilling tool failure accidents will directly lead to serious consequences such as prolonging the drilling cycle, increasing mining costs, causing huge economic losses and personal safety. Therefore, strict testing of drill pipe parameters is imperative. [...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a measuring device for the contour line of the thickened section of the drill pipe wall, which solves the problems of low manual detection efficiency, poor precision, and large influence of human factors on the detection results in the prior art

Images