为准确认识深部煤层气水平井压裂干扰行为，对大宁−吉县区块18组煤层气井间的压裂干扰事件及其对18口受扰井、13口干扰井的影响特征进行了系统梳理，揭示了压裂干扰作用机理及关键影响因素。结果表明：生产井受干扰后呈现井口压力上涨速度加快、产气量下降、产液量骤增的特征。受扰井的产气恢复程度反映压裂干扰程度，受扰前累产气量越低，受扰井的产气恢复程度越高；井距方向（垂直水平段轨迹方向）的干扰事件中，干扰井的压裂液量、加砂量越低，受扰井的产气恢复程度越高；相比于井距方向的受扰井，排距方向（与水平段轨迹相同方向）的受扰井产气恢复程度更高，且靠近干扰井水平段入靶点（A点）一侧的受扰井比水平段终点（B点）一侧的受扰井产气恢复程度更高。受扰井的地层能量衰竭程度和干扰井的微构造、地应力及储层各向异性共同作用，对干扰井的缝网形态造成影响。影响干扰井产量的主要因素为其自身的压裂参数，干扰井的段长越小、单段压裂液量和加砂量越大，产量比邻井更高。最后对压裂干扰机理进行了理论分析和探讨，压裂干扰对受扰的生产井主要产生两方面影响：一是打破气水相渗动态平衡，产水量大幅增加，外来液体被排出后，气量可恢复到受扰前产气水平；二是支撑剂、煤粉等固体颗粒堵塞孔喉，降低了缝网导流能力，气量难以恢复到原有产气水平。

In order to accurately understand the effects of fracturing interference on deep CBM horizontal wells, 18 groups of fracturing interference events and their effects on 18 disturbed wells and 13 interfering wells in Daning-Jixian block were systematically analyzed, the mechanism and key influencing factors of fracturing interference were revealed. The results show that: After the producing well is disturbed, the typical characteristics are the acceleration of wellhead pressure, the decrease of gas production and the sudden increase of liquid production. The gas production recovery degree of disturbed well directly reflects the light and heavy degree of fracturing interference. The lower the cumulative gas production before disturbed, the higher the gas production recovery degree of disturbed well. In the interference event in the direction of well spacing (vertical horizontal section track direction), the lower the fracturing fluid volume and sand volume in the interfering well, the higher the recovery degree of gas production in the disturbed well. Compared with the disturbed well in the interference event of the well spacing direction, the disturbed well in the interference event of the row spacing direction (the same direction as the horizontal segment trajectory) has a higher gas production recovery degree. In the interference event of the row spacing direction, the disturbed well near the target (point A) of horizontal segment of the interfering well has a higher gas production recovery than the disturbed well at the end of the horizontal segment (point B). The formation energy exhaustion degree of the disturbed well, the microstructure, ground stress and reservoir anisotropy of the interfering well work together to affect the fracture pattern of the interfering well. The main factor affecting the production of interfering well is its own fracturing parameters. Compared with the adjacent well without interference on the same well platform, the smaller the section length, the larger the amount of liquid and sand added in a single section of the interfering well, the higher the production is. Finally, theoretical analysis and exploration were conducted on the mechanism of fracturing interference. Fracturing interference mainly has two effects on the disturbed production wells: first, it breaks the dynamic balance of gas water phase permeability, significantly increases water production, and after the discharge of foreign liquids, the gas production can be restored to the pre disturbance gas production level; the second issue is that solid particles such as proppants and coal powder block the pore throats, reducing the flow capacity of the mesh and making it difficult to restore gas production to its original level.