With the deepening of the concept of low-carbon environmental protection, sidetracking branch wells and fishbone wells that can greatly increase the production of a single well are more and more popular in oil fields, and sidetracking branch wells and fishbone wells require the guidance of window sidetracking tools. The oblique device can be recovered, so the existing one-piece windowing sidetracking tool cannot fully meet the market demand.

During the use of the fenestration sidetracking tool, because there are upper and lower cones in the setting anchor device, the small end of the upper cone faces upward and the small end of the lower cone faces downward, so it is under pressure after setting When the upper cone and the slips evenly distributed on its outer edge are pressed tighter and tighter, it ensures that the setting anchor device cannot move downward; while under tension, the lower cone and the slips evenly distributed on its outer edge are pulled tighter and tighter to ensure that the set anchor device cannot move downward. The sealing and anchoring device cannot move upwards; so the one-piece window sidetracking tool cannot be taken out once it is set, that is, it cannot be recovered, so the sidetracking tool can only be used for ordinary window sidetracking, not sidetracking Drilling branch wells and fishbone wells, for sidetracking branch wells and fishbone wells, if the window sidetracking tool cannot be recovered or fails to recover, it will cause the sidetracking branch well or fishbone well to fail to be completed, or even cause the original well to be scrapped.