METHOD, ANALYSIS DEVICE AND PUMPING SYSTEM FOR DETECTING AN OIL LEAK IN A BEAM PUMP

摘要

The invention relates to a computer-implemented method for detecting an oil leak in a beam pump (1), wherein, during pumping movement of the rod linkage (5, 10) through the wellhead (6), a stroke region is formed, which is captured by a camera (22) by means of an image sequence, and wherein the following method steps are carried out: • a) capturing images of the image sequence containing at least the stroke region of the rod linkage, • b) detecting soiling in the stroke region of the rod linkage in comparison with a known clean state for an image in question of the image sequence, • c) ascertaining the position of the detected soiling for an image in question of the image sequence by means of the associated position of the rod linkage, • d) determining the change in the soiling at the ascertained position over at least one pumping cycle from the images of the image sequence, • e) checking if the change in the soiling exceeds a predefined limit value, and if applicable, outputting a warning of an oil leak.