为评价鄂尔多斯盆地东缘杨家坡区块煤层气开发潜力，优化其开发地质单元划分方法，采用储层精细描述技术、类比法与多层次模糊综合评价法，对区块4+5号与8+9号煤层地质、资源、储层、水文及合采地质条件进行描述，开展与北部保德区块地质条件对比，剖析总结杨家坡区块煤层气开发难点，优化煤层气开发潜力评价与开发地质单元划分方法。结果表明：杨家坡区块单煤层资源条件较差，两煤层累计资源丰度为1.08×10⁸ m³/km²。储层渗透性较好，层间物性差异较小，具备合层开发潜力。断层对300 m范围内煤储层含气量、渗透率具有重要影响，同时增加沟通顶板含水层的风险。应用煤层气开发地质单元划分方法，评价了杨家坡区块煤层气开发潜力与合采兼容性，划分了3个级别潜力区6个开发地质单元，指出杨家坡区块中部适合合层开发，西北部的部分区域适合合层开发，东北部适合接替开发。

In order to evaluate the development potential of coalbed methane in Yangjiapo block on the eastern margin of Ordos Basin and optimize the division method of its development geological units, the geological, resource, reservoir, hydrological and commingled production geological conditions of No. 4 + 5 and No. 8 + 9 coal seams in the block were described by reservoir fine description technology. By using the analogy method and multi-level fuzzy comprehensive evaluation method, the geological conditions of the Baode block in the north were compared, the difficulties of CBM development in the Yangjiapo block were analyzed and summarized, and the evaluation of CBM development potential and division method of development geological units were optimized. The results show that the resource conditions of a single coal seam in the Yangjiapo block are poor, and the cumulative resource abundance of the two coal seams is 1.08 × 10⁸ m³/km². The reservoir permeability is good, the difference in physical properties between the layers is small, and it has the potential for combined layer development. Faults have an important influence on the gas content and permeability of coal reservoirs within 300 m, and increase the risk of communicating with roof aquifers. The geological unit division method of coalbed methane development was applied to evaluate the development potential and commingled production compatibility of coalbed methane in the Yangjiapo Block. The six geological development units were divided into three levels of potential areas. It is pointed out that the middle part of Yangjiapo block is suitable for commingled development, some areas in the northwest are suitable for commingled development, and the northeast is suitable for replacement development.