Objectives/scope: The deterioration of oil and gas resources in Jilin Oilfield is becoming increasingly serious, and the difficulty of building production efficiency is increasing. It is urgent to comprehensively reduce costs and increase efficiency. Methods, Procedures, Process: Horizontal well platform construction is carried out in the Miaoxi area of Xinli Oilfield, forming an intensive well factory production model, significantly reducing drilling costs, and achieving efficient development. Two horizontal well platforms have been deployed, totaling 20 horizontal wells. The maximum platform size is 12 wells, with a maximum offset of 1061 m. The platform has a large offset, shallow vertical depth (1500 m), and a long horizontal section. Result, Observations, Conclusions: Difficulties such as friction, high torque, difficulty in trajectory control, difficulty in extending the horizontal section, and difficulty in running casing during the drilling process. In response to the above issues, key technological breakthroughs have been made in optimizing the layout of the well site, optimizing the trajectory of horizontal wells, matching acceleration tools, optimizing drilling parameters, and ensuring safe casing insertion. Novel/Additive Information: the average drilling cycle of the two platforms is 21 days, with the fastest drilling cycle of 13.75 days, which is 50% shorter than the previous period. The maximum number of wells on the platform is 12, and the maximum offset reaches 1061 m. The successful implementation of the horizontal well platform has explored new ways for low-cost and efficient development of unconventional oil and gas resources. basis, key drilling matching technologies were studied, including wellbore trajectory optimization, personalized drill bits and matching speed-up tools selection, and performance optimization of high-temperature resistant water-based polymer drilling fluids. Result, Observations, Conclusions: this technology has been applied in the Changshen 47 well, the completed drilling depth is 5950 m, the vertical depth is 4906 m, the horizontal section is 982 m, solving the problem that 70 drilling rigs is unable to meet the requirements of conventional wellbore structure, significantly shortening the drilling cycle, and saving drilling costs of 9.15 million yuan. Novel/Additive information: the research results indicate that the unconventional three opening wellbore structure design is reasonable, and the drilling matching technology has a significant speed increasing effect. It can be promoted and applied in ultra deep horizontal well drilling, significantly reducing drilling costs.