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Analysis of geothermal energy exploitation on Karlovac geothermal field

机译：卡洛瓦克地热田地热能开发分析

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摘要

Analiza iskori?tavanja geotermalne energije na geotermalnom polju Karlovac%Geothermal reservoir Re&ica was discovered with two wells: Ka-2 and Ka-3. Based on the results of investigations from abovementioned wells, the reservoir temperature of 140 Celsius degrees was determined. Ka-3 would be production well and Ka-2 injection well. Depth interval from 1 900 to 3 523 meters is designed for hot water production in Ka-3 well and depth interval from 3 200 to 4145 meters is designed for injection of chilled water in Ka-2 well. Gradual utilization of reservoir heat energy can be planned by, applying Clausius-Rankin process. In view of total efficiency factor, energy output of geothermal source should be expressed as maximum useful work or exergy where reversible processes lead working fluid into mechanical and thermal environment conditions equilibrium. Chilled geothermal water would be returned through injection well to the same reservoir what assures heating reproducibility and pressure maintenance in the reservoir. Economic analysis estimated total investment costs needed for development of geothermal power plant, and economic indicators of profitability of geothermal project. The production of electricity from Recica reservoir would be economically viable with cascade principle of heat energy utilization and a high annual degree of utilization
机译：发现了Re＆ica地热储层Re＆ica有两口井：Ka-2和Ka-3。根据上述井的调查结果，确定了140摄氏度的储层温度。 Ka-3将是生产井，Ka-2将是注入井。深度间隔为1900米至3 523米，用于在Ka-3井中生产热水，深度间隔为3200米至4145米，用于在Ka-2井中注入冷水。可以通过应用Clausius-Rankin过程来计划逐步利用储层热能。鉴于总效率因子，在可逆过程导致工作流体进入机械和热环境条件平衡的情况下，地热源的能量输出应表示为最大有用功或火用。冷却后的地热水将通过注入井返回同一储层，从而确保储层的加热再现性和压力维持。经济分析估算了开发地热发电厂所需的总投资成本，以及地热项目盈利能力的经济指标。利用热能利用的级联原理和较高的年利用度，从Recica水库生产电力将在经济上可行

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  • 来源
    《Nafta》 |2010年第4期|P.191-202|共12页
  • 作者

    T. Kurevija; Z. Kljaic; D. Vulin;

  • 作者单位

    Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, Zagreb, Croatia;

    rnINA - Industrija nafte d.d., SPC Oil and Gas Pro-duction Sector, Slavonija District;

    rnFaculty of Mining, Geology and Petroleum Engineer-ing, University of Zagreb, Pierottijeva 6, Zagreb, Croatia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    geothermal power production; geothermal energy; binary rankine cycle;

    机译：地热发电;地热能二元朗肯循环;

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