The Netherlands has ample geothermal resources. During the last decade, development of these resources has picked up fast. In 2007 one geothermal system had been realised; to date (1 January 2019), 24 have been. Total geothermal heat production in 2018 was 3.7 PJ from 18 geothermal systems. The geothermal sources are located in the same reservoirs/aquifers in which the oil and gas accumulations are hosted: Cenozoic, Upper Jurassic – Lower Cretaceous, Triassic and Rotliegend reservoirs. Additionally, the yet unproven hydrocarbon play in the Lower Carboniferous (Dinantian) Limestones delivered geothermal heat in two geothermal systems. This is in contrast to the Upper Cretaceous and Upper Carboniferous with no producing geothermal systems but producing hydrocarbon fields. Similar to hydrocarbon development, developing the geothermal source relies on fluid flow through the reservoir. For geothermal application a transmissivity of 10 Dm is presently thought to be a minimum value for a standard doublet system. Regional mapping of the geothermal plays, with subsequent resource mapping, by TNO discloses the areas with favourable transmissivity within play areas for geothermal development. The website www.ThermoGis.nl provides the tool to evaluate the geothermal plays on a sub-regional scale. The Dutch geothermal source and resource portfolio can be classified using geothermal play classification of, for example, Moeck (2014). An appropriate adjective for play classification for the Dutch situation would be the predominant permeability type: matrix, karst, fracture or fault permeability. The Dutch geothermal play is a matrix-permeability dominated ‘Hot Sedimentary Aquifer’, ‘Hydrothermal’ or ‘Intra-cratonic Conductive’ play. The Dutch ‘Hot Sedimentary Aquifer’ play is subdivided according to the lithostratigraphical annotation of the reservoir. The main geothermal plays are the Delft Sandstone and Slochteren Sandstone plays.

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介绍荷兰的地热带和储层地质

荷兰拥有丰富的地热资源。在过去十年中，这些资源的开发速度加快。2007 年实现了一个地热系统；迄今为止（2019 年 1 月 1 日），已有 24 次。2018 年地热总产热为 3.7 PJ，来自 18 个地热系统。地热源位于油气聚集所在的同一储层/含水层中：新生代、上侏罗统 - 下白垩统、三叠系和 Rotliegend 储层。此外，下石炭统（迪南田）石灰岩中尚未证实的碳氢化合物带在两个地热系统中传递地热热量。这与没有生产地热系统但生产碳氢化合物田的上白垩统和上石炭统形成对比。与油气开发类似，开发地热源依赖于流经储层的流体。对于地热应用，目前认为 10 Dm 的透射率是标准双峰系统的最小值。TNO 对地热带进行区域测绘以及随后的资源测绘，揭示了在地热开发的游乐区内具有良好透射率的区域。网站www.ThermoGis.nl提供了评估次区域尺度地热资源的工具。荷兰地热资源和资源组合可以使用 Moeck (2014) 等地热资源分类法进行分类。荷兰情况下的一个合适的分类形容词是主要的渗透率类型：基质、岩溶、裂缝或断层渗透率。荷兰地热区是一个以基质渗透率为主的“热沉积含水层”、“热液”或“克拉通内传导”区。荷兰“热沉积含水层”区域根据储层的岩石地层注释进行细分。主要的地热区是代尔夫特砂岩区和斯洛赫特伦砂岩区。