The invention provides an oil-
water well oil
pipe thread profile measurement method based on three-dimensional
point cloud adaptive
slicing. The method comprises the following steps: step 1, obtaining an oil
pipe thread three-dimensional
point cloud image; 2, normalizing the 3D
point cloud data; 3, extracting a global
feature recognition point cloud image, carrying out point cloud positioning, and segmenting point
cloud data; step 4, extracting the labeled detection area for denoising
processing; step 5, segmenting the 3d point cloud image into a plurality of square blocks; step 6, performing
projection mapping processing on the plurality of point cloud blocks from front view, top view and side view angles to obtain a pseudo picture; and step 7, carrying out pseudo
image matching and combining with a
loss function to judge whether the image is qualified. According to the oil-
water well oil
pipe thread profile measurement method based on the three-dimensional point cloud self-adaptive
slicing, operation reworking caused by oil pipe sealing leakage is reduced, the working efficiency is improved, the
crude oil yield loss is reduced, and it is avoided that the liquid supply capacity of an
oil well is reduced due to leakage.