Technological advances in horizontal drilling and hydraulic fracturing have led to a re-evaluation of the UK Carboniferous sequences for shale oil and gas potential. In the Gainsborough Trough, hemipelagic mudstones known collectively as the Bowland Shale were deposited during the Pendleian Substage (Late Mississippian). In this study the interpretation of heritage 2D and recent 3D seismic data allowed the reconstruction of the tectonic evolution of the basin, which was simulated in a 3D basin and petroleum systems model. The model enabled the first prediction of generated, adsorbed, retained and expelled hydrocarbon volumes. Between 8 and 26 Bbbl of STOIIP, and between 11 and 38 tcf of GIIP have been estimated to lie within the Bowland Shale in the Gainsborough Trough. However, at the present time, there is considerable uncertainty concerning these in-place volumes, and no tests have proven the recoverability of oil and gas from the Bowland Shale in this area. Importantly, the Bowland Shale has been modelled as a single homogeneous layer, and the in situ volume numbers need to be corrected for a net to gross factor, once the criteria required for the definition for net reservoir in this formation are better understood.

中文翻译：

---

通过 3D 盆地和石油系统建模进行页岩油气资源评估。来自英国陆上东米德兰兹郡的案例研究

水平钻井和水力压裂的技术进步导致重新评估英国石炭纪层序的页岩油气潜力。在 Gainsborough 海槽中，在 Pendleian Substage（晚密西西比纪）期间沉积了统称为 Bowland 页岩的半远洋泥岩。在这项研究中，对遗产 2D 和最近的 3D 地震数据的解释允许重建盆地的构造演化，这是在 3D 盆地和石油系统模型中模拟的。该模型能够首次预测生成、吸附、保留和排出的碳氢化合物体积。据估计，8 至 26 Bbbl 的 STOIIP 和 11 至 38 tcf 的 GIIP 位于 Gainsborough 海槽的鲍兰页岩内。然而，就目前而言，这些就地体积存在相当大的不确定性，并且没有测试证明该地区鲍兰页岩的石油和天然气的可采性。重要的是，鲍兰页岩已被建模为单个均质层，一旦更好地理解了该地层中净储层定义所需的标准，就需要针对净到总因子对原位体积数进行校正。