鄂尔多斯盆地东缘神府区块历经近20年非常规天然气勘探，于2023年发现了千亿方深部煤层气储量。深部煤层气勘探初期，面临地质规律认识不足、压裂技术不成熟、排采工艺经验欠缺等难题。

通过管理和技术创新，双轮驱动，取得了良好的勘探成效。管理上，开创性施行了深部煤层气、致密砂岩气“互补式”和“立体式”勘探，打破专业壁垒、组织壁垒和业务壁垒，坚持“一井一策”，高效推进“钻−压−排”一体化。技术上，提出“微相控煤、源热控烃、温压控态”的深部煤层气成藏模式，建立选区标准并落实富集区，形成了地质−工程“甜点”评价技术，并探索应用复合立体缝网改造技术实现煤储层的改造体积最大化和渗流能力最优化，因地制宜地提出“快速返排−多级控压−阶梯稳步提产”的排采思路，形成欠饱和井、饱和井两大类排采制度，明确不同排采阶段的目标原则，建立3类井底流压下降模式，支撑探井达产稳产。

通过一系列的管理和技术创新，神府大气田成功发现，展示了鄂尔多斯盆地东缘深部煤层气勘探开发的广阔前景，对我国类似盆地资源勘探和非常规油气增储上产具有重要指导意义。

After explorations of unconventional natural gas for nearly two decades in the Shenfu block on the eastern margin of the Ordos Basin, deep coalbed methane (CBM) with reserves of 100 billion m³ was discovered in this block in 2023. However, the preliminary exploration of deep CBM in this block faces challenges of insufficient understanding of geological laws, immature fracturing technologies, and a lack of production technologies and experience.

Driven by both management and technological innovations, encouraging exploration results have been achieved. The management innovations include: (1) The implementation of a complementary and three-dimensional exploration mode of deep CBM and tight sandstone gas; (2) The removal of the barriers of disciplines, organization, and businesses; (3) The preformation of one strategy for one well; and (4) The efficient promotion of the drilling, fracturing, and drainage integration. The technical innovations encompass: (1) The deep CBM accumulation pattern featuring microfacies-controlled coal development, thermal maturity-controlled hydrocarbon generation, and temperature- and pressure-controlled occurrence states; (2) The criteria for exploration target selection, allowing for the identification of the enrichment areas of deep CBM, and the assessment technology for geological-engineering dual sweet spots; (3) The exploration of a composite technique for three-dimensional fracture network stimulation to maximize the stimulated volumes and optimize the seepage capacity of coal reservoirs; (4) A production approach comprising rapid backflow of fracturing fluids, multi-stage pressure control, and stepped steady increase in production developed according to local conditions. This assists in forming two production systems, namely undersaturated- and saturated-CBM wells, determining the targets and principles of different stages, and establishing three decline modes of bottomhole flow pressure to achieve the designed capacity and steady production of exploration wells.

These management and technological innovations have contributed to the discovery of the large gas field in the Shenfu block, demonstrating great prospects for the exploration and production of deep CBM on the eastern margin of the Ordos Basin. Therefore, this study serves as a significant guide for resource exploration in similar basins, along with the reserve growth and production addition of unconventional oil and gas, in China.