GEOTHERMICS International Journal of Geothermal Research and its Applications VOLUME CONTENTS AND AUTHOR INDEX VOLUME 27 (1998) PERGAMON GEOTHERMICS International Journal of Geothermal Research and its Applications IIRG Editor E. BARBIER—National Research Council—International Institute for Geothermal Research, Pisa, Italy Associate Editor for the Americas S. E. INGEBRITSEN—U.S. Geological Survey, Menlo Park, California, U.S.A. Managing Editor Mary H. DICKSON (Editorial Office in Pisa, see below) Editorial Board Terms expire December 1998 H. ARMANNSSON—National Energy Authority, Reykjavik, Iceland A. DE JEsuUS—PNOC Energy Development Corporation, Manila, Philippines R. DiPippo—Dept. Mechanical Engineering, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts, U.S.A. ‘ F. Gorr—Los Alamos National Laboratory, Los Alamos, New Mexico, U.S.A. aI| q A. JupE—CSM Associates Limited, Penryn, Cornwall, U.K. M. O’SULLIVAN—Department of Engineering Science, University of Auckland, New Zealand @ Terms expire December 1999 mm P. R. L.B RowNeE—Geothermal Institute, University of Auckland, Auckland, New Zealand | D. DEMING—School of Geology & Geophysics, University of Oklahoma, Norman, Oklahoma, U.S.A. |e M. GRANT—GENZL, Auckland, New Zealand M. HANANO—JMC Geothermal Engineering Co. Ltd, Morioka, Japan M. P. HocHSTEIN—Geothermal Institute, University of Auckland, Auckland, New Zealand M. SASADA—Geological Survey of Japan, Tsukuba, Japan Terms expire December 2000 S. BACHU—Alberta Geological Survey, Edmonton, Alberta, Canada C. CLAUSER—Joint Geoscientific Research Institute (GGA), Geological Survey (NLfB), Hannover, Germany W. C. EvANS—U:S. Geological Survey, Menlo Park, California, U.S.A. S. K. GARG—Maxwell Technologies, Inc., San Diego, California, U.S.A. J. L. QUIJANO LEON—Comision Federal de Electricidad, Morelia, Michoacan, Mexico B. STEINGRIMSSON—National Energy Authority, Reykjavik, Iceland Advisory Board V. CERMAK—Geophysical Institute, Czech Academy of Sciences, Prague, Czech Republic D. H. FREESTON—Geothermal Institute, University of Auckland, Auckland, New Zealand I. B. FRIDLEIFSSON—President, International Geothermal Association, Auckland, New Zealand V. I. KoNoNov—Laboratory of Geothermics, Institute of Geology, Academy of Sciences, Moscow, Russia < . J. LipPMANN—Lawrence Berkeley Laboratory, University of California, Berkeley, California, U.S.A. . MAEJIMA—Japan Geothermal Energy Association, Tokyo, Japan . MONGELLI—Institute of Geodesy and Geophysics of the University, Bari, Italy . J. P. MUFFLER—U.S. Geological Survey, Menlo Park, California, U.S.A. esede. eP ANICHI—CNR National Geological Advisory Committee, Rome, Italy . L. REPETTO—Division of Earth Sciences, UNESCO, Paris, France RyBACH—Institute of Geophysics, ETH-Federal Institute of Technology, Zurich, Switzerland .S QUARCI—CNR— International Institute for Geothermal Research, Pisa, Italy sOoNG eW EI—Geology Dept., Geothermal Research Section, University of Beijing, Beijing, People’s Republic of China > . H. TRUESDELL—Menlo Park, California, U.S.A. P. M. WrIGHT—President, Geothermal Resources Council, Davis, California, U.S.A. © 1998 CNR—lIstituto Internazionale per le Ricerche Geotermiche. All rights reserved Published 6 issues/annum in February, April, June, August, October and December Cover design by Silvia Barbier Publishing and Advertising Offices The Americas: Elsevier Science Inc., 655 Ave of the Rest of the World: Elsevier Science Ltd, The Boulevard, Americas, New York, NY10010, U.S.A. [Tel. +1-212- Langford Lane, Kidlington, Oxford OX5 1GB, U.K. 633-3730; Fax: +1-212-633-3680] [Tel. (01865) 843000; Fax (01865) 843010. Editorial Addresses The Americas: Dr S. E. Ingebritsen, U.S. Geological Rest of the World: Dr E. Barbier, International Institute Survey, MS 439, 345 Middlefield Road, Menlo Park, for Geothermal Research, 2 Piazza Solferino, 56126 CA 94025, U.S.A. [Tel. (650) 329-4422; Fax (650) Pisa, Italy [Tel. (050) 41503; Fax (050) 47055; e-mail 329-4463; e-mail [email protected]] [email protected] or [email protected]] CONTENTS NUMBER 1 ill In Memoriam: W. F. Giggenbach vIn Memoriam: L. Stegena O. KOLDITz and C. CLAUSER 1 Numerical simulation of flow and heat transfer in fractured crystalline rocks: application to the Hot Dry Rock site in Rosemanowes (UK) F. OGINO and M. YAMAMURA 25 Pressure drop of water flow between injection and production wells intersected by a circular fracture Y. NAKASHIMA, S. NAKASHIMA, 43 NMR imagining of 'H in hydrous minerals D. Gross, K. WIEss, K. YAMAUCHI P. A. OMENDA 55 The geology and structural controls of the Olkaria — geothermal system, Kenya M. R. ALVES-DUQUE, F. MONTEIRO SANTOS 75 Heat flow and deep temperatures in the Chaves and L. A. MENDES VICTOR geothermal system, Northern Portugal L. AIRES-BARROS, J. M. MARQUES, 89 Hot and cold CO,-rich mineral waters in the Chaves R. CORES GRAGA, M. J. MATIAS, geothermal area (Northern Portugal) | C. H. VAN DER WEIJDEN, R. KREULEN and H. G. M. EGGENKAMP H. H. Quy 109 Overview of the geothermal potential of Vietnam 117. Book reviews 119 Recent Geothermal Literature 123 Patgnts Alert 129 Calendar of Meetings NUMBER 2 K. W. WISIAN, D. D. BLACKWELL, 131 Field comparison of conventional and new tech- S. BELLANI, J. A. HENFLING, nology temperature logging systems R. A. NORMANN, P. C. LYSNE, A. FORSTER and J. SCHROTTER S. TAMANYU, S. FUJIWARA, 143 Fracture system related to geothermal reservoir J.-I. ISHIKAWA and H. JINGU based on core samples of slim holes. Example from the Uenotai geothermal field, Northern Honshu, Japan M. E. INMAN, R. M. SHARP, 167 On-line corrosion monitoring in geothermal steam P. T. WILSON and G. A. WRIGHT pipelines E. K. MROCZEK and R. B. GLOVER 183 Changes in silica chemistry and hydrology across the Roturua geothermal field, New Zealand ill F. D’Amorg, D. GIUsTI and 197 Geochemistry of the high-salinity geothermal field A. ABDALLAH of Asal, Republic of Djibouti, Africa A. LAHLOU MIMI, H. BEN DHIA, 211 Application of chemical geothermometers to thermal S. Bourti, A. LAHRACH, L. BEN ABIDATE springs of the Maghreb, North Africa and F.-Z. BOUCHAREB-HAOUCHIM A. BERCKMANS and N. VANDENBERGHE 235 Use and potential of geothermal energy in Belgium 243 Recent Geothermal Literature 249 Patents Alert 255 Calendar of Meetings NUMBER 3 M. E. Cox and P. BROWNE 259 Hydrothermal alteration mineralogy as an indicator of hydrology at the Ngawha geothermal field, New Zealand G. AXELSSON and Z. DONG 271 The Tanggu geothermal reservoir (Tianjin, China) S. Lopp! and J. NASCIMBENE 295 Lichen bioindication ofa ir quality in the Mt. Amiata geothermal area (Tuscany, Italy) E. R. IGLESIAS and S. L. Moya 305 Applicability of Geothermal Inflow Performance Reference Curves to CO,-bearing reservoirs S. L. Moya, A. ARAGON, 317 Prediction of mass deliverability from a single well- E. R. IGLESIAS and E. SANTOYO head measurement and Geothermal Inflow Perfor- mance Reference Curves L. MARINI, R. CIONI and M. Guip1 331 Water chemistry of San Marcos area, Guatemala S. V. OSTAPENKO, S. V. SPEKTOR and 361 San Jacinto-Tizate geothermal field, Nicaragua: Y. P. NETESOV exploration and conceptual model 379 Recent Geothermal Literature 385 Calendar of Meetings NUMBER 4 T. SUGAMA 387 Interfaces between geothermal brine-induced scales { and SiC-filled polymer linings i} S. NAKAO and T. ISHIDO 401 Pressure-transient behavior during cold water 4 injection into geothermal wells IV G. J. MoRIDIS and K. PRUESS 415 T2SOLV: an enhanced package of solvers for the TOUGH2 family of reservoir simulation codes D. BANKS, R. S. SLETTEN, S. HALDORSEN, 445 The thermal springs of Bockfjord, Svalbard: occur- B. DALE, M. HEIM and B. SWENSEN rence and major ion hydrochemistry G. CORRADO, S. DE LORENZO, F. MONGELLI, 469 Surface heat flow density at the Phlegrean Fields A. TRAMACERE and G. ZITO caldera (southern Italy) D. L. GALLUP 485 Aluminum silicate scale formation and inhibition (2): scale solubilities and laboratory and field inhi- bition tests 503 Calendar of Meetings NUMBER 5/6 Special Issue: Deep Geothermal Systems, Japanese National Project at Kakkonda M. SASADA, N. Dol, L. J. P. MUFFLER 505 Preface and J. W. HEDENQUIST H. MURAOKA, T. UCHIDA, M. SASADA, 507 Deep geothermal resources survey program: igneous, M. YAGI, K. AKAKU, M. SASAKI, metamorphic and hydrothermal processes in a well K. YASUKAWA, S.-I. MIYAZAKI, encountering 500°C at 3729m depth, Kakkonda, N. Dor, S. SAITO, K. SATO and S. TANAKA Japan O. NAKAGOME, T. UCHIDA and 535 Seismic reflection and VSP in the Kakkonda geo- T. HORIKOSHI thermal field, Japan: fractured reservoir characteri- zation T. TOSHA, M. SUGIHARA and Y. NISHI 553 Revised hypocenter solutions for microearthquakes in the Kakkonda geothermal field, Japan S. SAITO, S. SAKUMA and T. UCHIDA 573 Drilling procedures, techniques and test results for a 3.7 km deep, 500°C exploration well, Kakkonda, Japan K. IkKEUCHI, N. Dol, Y. SAKAGAWA, 591 High-temperature measurements in well WD-1A H. KAMENOSONO and T. UCHIDA and the thermal structure of the Kakkonda geothermal system, Japan O. KaTo, N. Dol, Y. SAKAGAWA, 609 Fracture systematics in and around well WD-1, and T. UCHIDA Kakkonda geothermal field, Japan K. KASAI, Y. SAKAGAWA, R. KOMATSU, 631 The origin of hypersaline liquid in the Quaternary M. SASAKI, K. AKAKU and T. UCHIDA Kakkonda granite, sampled from well WD-1A, Kakkonda geothermal system, Japan V M. TATENO, M. TAKAHASHI, I. SUZUKI, Estimation of deep reflectors using triaxial drill bit K. AKAKU, T. UCHIDA, H. NIITSUMA and VSP in NEDO “Deep-Seated Geothermal Resources H. ASANUMA Survey”, Kakkonda, Japan N. Dol, O. KATO, K. IKEUCHI, Genesis of the plutonic-hydrothermal system around R. KOMATSU, S.-I. MIYAZAKI, K. AKAKU Quaternary granite in the Kakkonda geothermal and T. UCHIDA system, Japan M. SUGIHARA, T. TOSHA and Y. NISHI An empirical Green’s function study of a micro- earthquake swarm in the deeper part of Kakkonda geothermal reservoir, Japan Y. YANO and T. ISHIDO Numerical investigation of production behavior of deep geothermal reservoirs at super-critical condi- tions