PRELIMINARY REVIEW of GEOTHERMAL RESOURCES in KAZAKHSTAN Final Report Rev
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PRELIMINARY REVIEW OF GEOTHERMAL RESOURCES IN KAZAKHSTAN Final Report Rev. 2 Prepared for the World Bank and the Government of Kazakhstan May 2019 PRELIMINARY REVIEW OF GEOTHERMAL RESOURCES IN KAZAKHSTAN Final Report PROJECT NO.: 18163001 / REPORT NO.: TBC DISTRIBUTION: 18-0115 REVISION.: 2 ☐ OPEN DATE: 2019-05-10 ☐ CLOSED PAGES: 86 (90) ☒ SUBJECT TO CLIENTS APPROVAL COPIES: 1 REPORT TITLE: Preliminary Review of Geothermal Resources in Kazakhstan, Final Report AUTHOR(S): PROJECT MANAGER: Thorleikur Jóhannesson, Guðni Axelsson, Steinunn Thorleikur Jóhannesson Hauksdóttir, Carine Chatenay, Davíð Örn Benediktsson, Tobias B. Weisenberger CLIENT: CO-OPERATORS: World Bank Government of Kazakhstan SUPERVISION: ICEIDA Mitsunori Motohashi TYPE OF REPORT/STATUS: Final Report – Rev. 2 ABSTRACT: The Study was conducted in the fall 2018. It aimed at assessing potential utilisation of geothermal resources in Kazakhstan. Existing data concerning the geothermal potential of the country indicate that potentially exploitable geothermal resources are available, especially in the South and South-East part of the country. The study presents a review of available information on geothermal resources in Kazakhstan. Further to this, the report proposes an overview of the utilisation possibilities that the country geothermal resources offer. Based on these reviews, the authors focused on two hypothetical case studies: geothermal district heating in the city of Zharkent, and 10 MW binary power plant in the Zharkent sub-basin, to give an indication of the technical and economic viability of such applications. Finally, the report provides a set of recommendations to the Government of Kazakhstan on next steps for possible deployment of geothermal utilisation in the country. KEYWORDS (ENGLISH): KEYWORDS (ICELANDIC): GEOTHERMAL RESOURCE, SEDIMENTARY BASIN, GEOTHERMAL WELLS, DISTRICT HEATING, BINARY, LOAD DURATION, COST, FEASIBILITY PROJECT MANAGER´S SIGNATURE: REVIEWED BY: Carine Chatenay/Vilborg Yrsa Þórðardóttir © Content from this report may be copied in whole or in part but the sources must be mentioned. Geothermal resources Page | i i PRELIMINARY REVIEW OF GEOTHERMAL RESOURCES IN KAZAKHSTAN Final Report Contents Contents ...................................................................................................................................... 1 List of Figures ............................................................................................................................... 2 List of Tables ................................................................................................................................ 3 List of abbreviations and units ...................................................................................................... 4 Decimal point and digit grouping .................................................................................................. 4 Assumed values ........................................................................................................................... 4 Executive Summary ...................................................................................................................... 6 Introduction ................................................................................................................................. 9 Background .............................................................................................................................................. 9 Objective and Scope .............................................................................................................................. 10 1 Geothermal Resources Worldwide and Assessing their Potential ....................................... 12 1.1 Nature and Classification ..................................................................................................... 12 1.2 Sedimentary Geothermal Systems ...................................................................................... 16 1.3 Assessment of the Capacity of Geothermal Systems .......................................................... 18 2 Geothermal Resources in Kazakhstan ................................................................................ 21 2.1 Background and data........................................................................................................... 21 2.2 Geothermal research in Kazakhstan.................................................................................... 21 2.3 Overview of potential geothermal resources ..................................................................... 22 2.4 Previous estimates of geothermal potential ....................................................................... 24 2.5 Conclusions on status of exploration .................................................................................. 26 3 Sedimentary Geothermal Resources in South and SE-Kazakhstan ....................................... 27 3.1 Overview .............................................................................................................................. 27 3.2 Arys sub-basin / Syr-Darya basin ......................................................................................... 27 3.3 Almaty sedimentary sub-basin ............................................................................................ 30 3.4 Zharkent sedimentary basin ................................................................................................ 32 3.5 Sustainable utilization and reinjection ................................................................................ 42 3.6 Conclusion on potential of South and SE-Kazakhstan ......................................................... 43 4 Geothermal utilization ...................................................................................................... 45 4.1 Geothermal utilisation possibilities ..................................................................................... 45 4.2 Geothermal production ....................................................................................................... 46 4.3 Power generation with binary power cycles ....................................................................... 50 4.4 Direct use of geothermal resources .................................................................................... 56 4.5 Cascaded and integrated use of geothermal resources ...................................................... 63 5 Geothermal utilisation case studies in the Zharkent basin .................................................. 66 5.1 Local weather conditions .................................................................................................... 66 5.2 District heating in Zharkent ................................................................................................. 67 5.3 Binary power generation ..................................................................................................... 73 5.4 Conclusion on potential utilisation case studies ................................................................. 74 6 Strategy for implementation of geothermal utilization....................................................... 76 6.1 Benefits ................................................................................................................................ 76 6.2 Barriers ................................................................................................................................ 77 6.3 Recommendations............................................................................................................... 80 7 Conclusions ...................................................................................................................... 85 References ................................................................................................................................. 88 Geothermal resources Page | 1 PRELIMINARY REVIEW OF GEOTHERMAL RESOURCES IN KAZAKHSTAN Final Report List of Figures Figure 1 – Map of Kazakhstan ............................................................................................................... 10 Figure 2 – Schematic figures of the three main types of geothermal systems (A, B and C) along with typical temperature profiles. Note that the vertical scale for type C is exaggerated. ....................................................................................................................... 15 Figure 3 – Typical production and water level history of a sedimentary geothermal system during utilization with no reinjection (Axelsson G. S., 2005). ............................................. 18 Figure 4 – The main deep sedimentary basins of Kazakhstan classified on basis of their hydrocarbon exploration/exploitation status based on (KazEnergy Association, 2015) .. ................................................................................................................................ 23 Figure 5 – Geothermal atlas of Kazakhstan [A]. .................................................................................... 24 Figure 6 – A map of the Syr-Darya basin and the Arys river in southern Kazakhstan. .......................... 28 Figure 7 – Geothermal artesian basin boundaries within Arys sub-basin in SE-Kazakhstan (Source: (Kasymbekov, 2006)) ............................................................................................ 29 Figure 8 – Location of wells with geothermal indications/potential in the area