Recently, Shengli Oilfield's drilling institute successfully completed the casing windowing operation of Jiaoling 22-3HF well in Chongqing Liling by adopting the technology of high-angled well windowing, which solved the drilling construction difficulties of this well. The Jiaozuo 22-3HF well is located in Chongqing's Fuling area and was drilled by the 50810 drilling team of the Southwest Branch of Jianghan Drilling Company. The well was stuck in the drilling process and the card was unsuccessful. Party A took the solution of casing drilling after the well was filled. The first windowing operation was performed by a manufacturer's tilter and windowing tool. The tilting position of the tilter was 2563 meters, and the inclination angle of the well was 48.3 degrees. Because the tilter of the factory was affected by the inclination of the well, the orientation The measurement was inaccurate and it failed to complete the sidetracking for a month. Under this circumstance, Party A took the initiative to contact the Shengli Oilfield Drilling Institute and hoped that the Drilling Institute could solve this drilling problem. After receiving the mission, the drilling institute paid great attention and sent experienced experts to form the project team. After careful analysis of the situation of the well, the project team elaborated the construction plan and selected the SZ-210 type leaner and XZ-216 compound milling cone independently developed by the drilling institute. The SZ-210 omnidirectional MWD can be used to determine the azimuth, but it can also use the cable gyro to measure the azimuth and has a wide range of application. The XZ-216 compound milling cone adopts an integrated design to complete casing opening and window repair operations at one time, with cutting. Good performance, high milling speed, milled window rules, smoothness, etc. During the construction, the project team worked closely with the technical person in charge of the drilling company and the well team staff to timely optimize the structure of the drilling tool, reasonably adjust the drilling parameters, and successfully completed the tilting of the pedestal hanger and the casing window, and the leaner seated position 2518 meters, 46.8 degrees from the hanging position of the well, and 2513.00 meters to 2158.66 meters from the opening well. The correct orientation of the tilting device, the window quality is good, and the requirements for opening the window of the casing of Party A have been met, which is praised by Party A. (Correspondent Liang Zibo and Xue Liang) Furniture Handle,Exterior Door Handle,Nordic Brushed Gold Handle,Space Aluminum Alloy Handle Guangzhou Junpai Hardware Co., Ltd , https://www.junpaihardware.com