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Optimistic and Effective Reservoir Bottoms: An Example From Karaha-Telaga-Bodas, Indonesia

机译：乐观和有效的水库底部：来自印度尼西亚的Karaha-Telaga-Bodas的示例

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The depth to the brittle/ductile boundary, calculated normal stresses on fractures and the estimated compressional strength of the wall rocks have been integrated to determine the base of the fractured reservoir in the Karaha-Telaga-Bodas geothermal field, Indonesia. The brittle/ductile boundary deepens from a depth of 1.5 km in the south to ～3 km in the north. It is a sharp transition located near the top of the intrusion beneath the field. This boundary is considered the "optimistic" base of the fractured reservoir. In contrast, the "effective" reservoir base is controlled by the interplay of fracture orientation, stresses resolved on the fracture walls and the compressional strength of the wall rock. If the normal stress is larger than compressional strength, fractures will be effectively closed. If the normal stress is smaller than compressional strength, fractures will be open. The "effective" reservoir base is a relatively broad boundary that can overlap the "optimistic" reservoir base or be located above it.
机译：脆性/延性边界的深度，计算了骨折上的正常应力和墙壁岩石的估计压缩强度，以确定卡拉哈拉 - 博德斯地热场，印度尼西亚的裂缝储层的基础。脆性/延性边界深入从南方1.5公里的深度深入到北〜3公里。它是位于领域下方的入侵顶部附近的急剧过渡。该边界被认为是骨折储层的“乐观”底座。相反，“有效”储层基座由断裂取向的相互作用来控制，应力在骨折壁上和壁岩的压缩强度上分离。如果正常应力大于压缩强度，则将有效地关闭裂缝。如果正常应力小于压缩强度，则裂缝将是开放的。 “有效”储层基座是一个相对宽的边界，可以重叠“乐观”储层底座或位于其上方。

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