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Geochemical Analysis for Understanding Prospectivity of Low Enthalpy Geothermal Reservoirs of Dholera

机译：高焓地热水库理解前瞻性地球化学分析

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Geochemical Methods are crucial methods applied during various stages of exploration and exploitation to evaluate reservoir characteristics. It is used concurrently with geological and hydro-geological appraisals to supplement available information regarding the prospectivity of potential region of investigation at relatively low costs compared to geophysical methods or drilling. Dholera is an ancient port city which has historically been associated with natural thermal springs and wells with hot water flowing at appreciably high temperatures. Studies from pre-existing wells and surveys have suggested the presence of a sizable low enthalpy geothermal resource base. Geochemical methods are applied to waters, gases, and secondary minerals. One of the most prominent use of geochemical sampling is the determination of subsurface temperatures using Geothermometry. In this study commonly accepted concepts of Ionic and Silica Geothermometry are applied to understand conditions in the reservoir. Care has been taken to undertake tests while preserving native conditions by preserving sample using accepted standards. This paper seeks to present an interpretation on the results obtained as well as a give an outlook of the resource in place waiting to be utilized in this region. Interpretation of the data has given us some input on the Reservoir characteristics like: Reservoir Temperature, Type of reservoir rock, mixing process, multiple fluid origin and elevation of the basin.
机译：地球化学方法是在勘探和剥削的各个阶段应用于评估储层特征的关键方法。它与地质和水力地质评估同时使用，以补充有关地球物理方法或钻井的潜在调查区域的前景的可用信息。 Dholera是一座古老的港口城市，历史上与天然热弹簧和井有井，热水在明显高温​​下流动。预先存在的井和调查的研究表明存在相当大的低焓地热资源基础。地球化学方法应用于水，气体和次级矿物质。地球化学采样最突出的使用之一是使用地热测定法测定地下温度。在该研究中，普遍接受的离子和二氧化硅地质测量法的概念用于了解储层中的条件。通过使用已接受标准保留样品，已经采取了护理，同时通过保护样品来保存原生条件。本文旨在提出对获得的结果的解释，以及给予在该地区等待使用的资源的前景。对数据的解释已经给了我们一些关于储层特性的输入，如：储层温度，储层型岩，混合过程，多种流体来源和盆地的升高。

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