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相比美国海相致密油气，我国陆相致密油气地质条件更复杂、非均质性更强 [1]。针对非常规油气开发中水平井体积压裂存在的地层破裂压力过高、全井或者部分目的层无法压裂，最大与最小水平主应力关系难以协调，分段分簇之间相互压裂干扰导致水平段产液不均衡，单井初期产量低等问题 [2]，提出了水力割缝压裂联作技术，现场 4 口井试验表明，同水平井体积压裂相比，水力割缝压裂联作技术提高单井产量是前者的 1.7 倍，作业时间是前者的 1/5，说明水力割缝压裂联作技术能一定程度提高非常规致密油气产量，减少地层污染，对中国陆相致密油气的有效开发具有重要的理论和生产意义。“,”Compared with the marine tight oil and gas in the United States, China’s terrestrial tight oil and gas geological conditions are more complex and heterogeneous. For unconventional oil and gas development, the formation fracture pressure of horizontal well volume fracturing is too high, all or part of the well the target layer cannot be fractured, the relationship between the maximum and minimum horizontal principal stresses is difficult to coordinate, the mutual fracturing interference between the subu0002clusters causes the uneven fluid production in the horizontal section, and the initial low production of a single well. The field test of 4 wells shows that, compared with horizontal well volume fracturing, the combined hydraulic cutting and fracturing technology can increase the single well production by 1.7 times, and the operation time is 1/5 of the former, indicating that hydraulic cutting The combined fracturing technology can increase unconventional tight oil and gas production to a certain extent, reduce formation pollution, and has important theoretical and production significance for the effective development of China’s continental tight oil and gas.