Types and Preventive Measures of Volume Fracturing Interference in Horizontal Shale Oil Wells in Yingxiongling

The Yingxiongling shale oil in the Qaidam Basin achieved exploration breakthroughs through “horizontal well + volume fracturing”, but there was severe disturbance during the fracturing process of the shale oil platform, and the fracturing did not achieve the expected effect. In order to reduce the risk of hydraulic fracturing disturbance on shale oil platforms, a study was conducted on the types of volume fracturing disturbance and preventive measures for horizontal wells in Yingxiongling shale oil. The results indicate that: ① The disturbance caused by hydraulic fracturing in horizontal wells of Yingxiongling shale oil is mainly due to the communication between artificial fractures and natural fractures; ② Horizontal well spacing is an important factor affecting interference. When the horizontal well spacing is between 200-300m, the risk of interference between target wells is high, and when the horizontal well spacing is 500m, the risk of fracturing interference between wells is reduced. ③ Measures such as early shut in of neighboring wells for energy storage, avoiding natural fracture development sections, and adopting synchronous fracturing can effectively reduce the risk of pressure breakthrough. Research suggests that horizontal well fracturing interference affects the effectiveness of shale oil development. Scientific and reasonable measures to prevent fracturing interference can effectively reduce the risk of fracturing interference and improve the effectiveness of shale oil development.