Automatic groove milling method for sand control screen

Abstract

The invention relates to an automatic groove milling method for a sand control screen. A sand control screen automatic groove milling machine with a control mechanism, a rotary feeding mechanism, a bearing mechanism, a clamping mechanism and a groove milling mechanism is adopted, and according to the groove milling method of mounting, alignment, clamping, groove milling, feeding and secondary groove milling of the sand control screen, the aim that a plurality of grooves which are linearly arranged in the length direction are automatically machined in the wall of the sand control screen is achieved. According to the method, the aim of automatic groove milling of the wall of the sand control screen is achieved, the production cost and the labor intensity are greatly reduced, the production efficiency is improved, the production requirements of low cost and high efficiency of an enterprise are well met, and the good technical support is provided for large-scale and automatic production of an enterprise.

Description

[0001] This case is a divisional application based on the invention patent with the filing date of 2013-06-25, the application number of 201310255062.2, and the title of "An Automatic Slot Milling Machine for Sand Control Screen". technical field [0002] The invention relates to the technical field of petroleum mechanical processing, in particular to an automatic groove milling method for a sand control screen used to automatically process a filter assembly installation groove on the pipe wall of the sand control screen. Background technique [0003] In the process of crude oil extraction in the petroleum industry, mechanical sand control devices are required. The previous mechanical sand control devices generally used slotted screens and wire-wrapped screens. The slotted screen is directly processed on the pipe wall, and the minimum gap width is 0.25mm, which limits the sand control of powder and fine sand, and its flow area is small, so it cannot achieve the self-cleaning ...

AI Technical Summary

Problems solved by technology

In the process of making the sand control screen described in the above patent, it is necessary to process the installation groove of the filter assembly on the pipe wall of the sand control screen. At present, the processing of the installation groove is usually done manually, and the labor cost is high and the production efficiency is high. Low, and the weight of the sand control screen is heavy. In the process of manual processing, it is necessary to rotate the sand control screen to process installation grooves on the periphery of the sand control screen or move the sand control screen to process multiple edges on the sand control screen. The installation grooves arranged in a straight line in the length direction are very time-consuming and labor-intensive, and cannot meet the low-cost and high-efficiency production needs of enterprises, nor do they meet the development needs of large-scale and automated production of enterprises

Images