Topic 7: Geophysical and Remote Sensing Models. Presenter: Greg Ussher Organisation:SKM
|
|
- Alexander Horn
- 6 years ago
- Views:
Transcription
1 Topic 7: Geophysical and Remote Sensing Models Presenter: Greg Ussher Organisation:SKM
2 Overview Surface-based imaging of subsurface characteristics That indicate geothermal system location That control system behaviour Multiple methods applied Each provide different information Relative value depends on geological environment and hydrothermal system type Integration in Concept Models Multi-method and multi-disciplinary integration Develop and refine concept models The basis for any 3D geological or numerical reservoir model Consider environments between systems
3 Objective Locate subsurface extent of geothermal systems Mapping effects caused by the presence of thermal fluids and associated hydrothermal alteration Resistivity fluids and alteration Magnetics alteration (demagnetization) Gravity densification from deposition Locate structures that control geothermal fluid movement Faults, calderas, basement structures Gravity offsets and infill structures Resistivity surface effects on fault traces and deep low permeable zones MEQ fault planes and active structure Subsidence map extent of pressure change Locate heat source Resistivity magma chamber Gravity major intrusives Seismics melt has significantly different structure Magnetics deep regional temperature
4 The toolbox Method Detection of : Sensitivity / factor Resistivity (MT) Gravity Magnetics Seismics / MEQ Hydrothermal alteration clay cap Hydrothermal alteration high T Direct temperature Salinity Structures Mineralisation Hydrothermal alteration Geology variation Curie point (thermal demagnetisation) Fracture location (Acoustic noise) Fracture / structure orientations Velocity model structure Temperature? 100 to to to 100 Depends on porosity High Low Surface high Surface high/low? V Low Low - Moderate Moderate Low - Moderate? Subsidence Reservoir pressure change - extent Moderate - High Gravity change Fluid saturation changes Moderate - High
5 RESISTIVITY
6 DC methods reliable mapping tool
7 DC Resistivity - Limitations Limited depth penetration Very long arrays required to get good depth AB/2=1000m probably gives depth of about 300m. Requires increasingly large power sources for greater depth Not so reliable in mountainous terrain Survey logistics are complex in difficult terrain Limits survey extent
8 Magneto telluric (MT) resistivity Now the main resistivity exploration tool Gives good depth penetration and reasonable horizontal resolution Complex data collection and processing Necessary that this is done well to get useful results Equipment relatively expensive Typically use specialist survey contractors Not do-it-yourself Unless surveying very large areas for several years
9 2D Inversion Modelling
10 3D Model Inversion Integrated modeling of all data 3D Visualisation and vertical & horizontal slicing Model Topographic effects Model shallow features that cause static shifts Avoiding need for TDEM corrections now Model cross -section Resistivity at 50 m
11 What we look for in the MT results A clear conductive layer (Low resistivity, clay cap) Top of conductor is probably C Bottom of conductor is probably C Probable Reservoir Extent of probable reservoir lies under strongest section of the conductive layer 11
12 Shallow and Deep conductors NW Source: S. M. Sewell, W. B. Cumming, L. Azwar & C. Bardsley, 2012 SE
13 Rotokawa 3D Interpretation N S Source: S. M. Sewell, W. B. Cumming, L. Azwar & C. Bardsley, 2012
14 Orakeikorako - Ngatamariki Source: O Brien, J.M., 2010 PhD thesis - Hydrogeochemical Characteristics of the Ngatamariki Geothermal Field and a Comparison with the Orakei Korako Thermal Area, Taupo Volcanic Zone, New Zealand. Source: GNS Ngatamariki Geoscience Report, 2008 (AEE Appendices)
15 Regional MT survey of Sth TVZ Source: Bertrand et al., 2012 (GNS)
16 Regional MT survey of Sth TVZ Source: Bertrand et al., 2012 (GNS)
17 Resistivity - Conclusions Shallow conductive alteration cap is a key indicator of presence of geothermal system Often indicating shallow reservoirs and outflows Useful system located where vertical permeability allows upflow to these shallower levels Temperature effect means that a strong conductor is not relict Deeper conductors found in TVZ indicate modhigh temperature but low permeability These are probably conductive heat flow areas No conductor (deep nor shallow) no temperature???
18 GRAVITY & MAGNETICS
19 Gravity caldera mapping Supri Soengkono Gravity Modelling Of Reporoa Basin, Eastern Taupo Volcanic Zone (Tvz), New Zealand. NZGW
20 Gravity mapping a pull-apart basin Gravity models can identify basement structure that can be critical for understanding deeper controls on permeability
21 Gravity 2D Model 21
22 Densification due to Geothermal Activity This is a subtle effect and only identifiable when geology is consistent and terrain flat
23 Airborne Gravity - Gradiometry Enables accurate measurement from a moving vehicle / aircraft Can cover large areas
24 Aeromagnetic anomaly maps near surface alteration Low magnetic anomaly (Reduced to pole) where hydrothermal alteration is exposed near surface. Areas of fresh rock cover have magnetic high even though underlain by hydrothermal alteration
25 Gravity & Magnetics - Conclusions Gravity Has value in determining major structures Basement and sediment layers can be a critical control on permeability at depth in systems Good density of data is required to resolve structures An undervalued and neglected tool Magnetics Shallow effects strongest Probably lower value for deeper investigation
26 SEISMICS / MEQ
27 MEQ Locating stucture MEQ hypocentres can mark faults (often confirming surface mapping). In this case highlighted an offset in the active structure Basemap : GeothermEx 2005 Catherine Lewis Kenedi, Eylon Shalev, Alan Lucas, and Peter Malin, WGC 2010
28 MEQ Velocity models Velocity models can indicate variations of geology at depth. Reportedly temperature effect (Vp reduction at high T) Basemap : GeothermEx 2005 Catherine Lewis Kenedi, Eylon Shalev, Alan Lucas, and Peter Malin, WGC 2010
29 MEQ Darajat, Indonesia Base level activity Activity during injection
30 MEQ induced by injection - Darajat MEQ induced by injection can be effective in identifying active permeable zones. This can work even where natural activity is very low
31 SUBSIDENCE AND GRAVITY CHANGE
32 Reservoir change
33 Leyte Geothermal Field, Philippines Nilo A. Apuada, Rhoel Enrico R. Olivar and Noel D. Salonga (PNOC )
34 Leyte Reservoir changes Pressure change Elevation change
35 Leyte Gravity change Gravity Gravity change due to expansion of 2-phase zone
36 Wairakei - Tauhara Subsidence from levelling Subsidence from InSAR
37 InSAR: Svartsengi-Reykjanes, Iceland Svartsengi Reykjanes Long term production at Svartsengi. Gradual pressure decline. Thóra Árnadóttir, Sigrún Hreinsdóttir, Marie Keiding, Sigurjón Jónsson, Judicael Decriem, Karolina Michalczewska, Martin Hensch, Halldór Geirsson, Andy Hooper, Benedikt G. Ófeigsson. GPS and InSAR observations on Reykjanes
38 InSAR: Svartsengi-Reykjanes, Iceland Svartsengi Reykjanes 100 MW production at Reykjanes since Small production area, rapid pressure decline but wider subsidence effect Thóra Árnadóttir, Sigrún Hreinsdóttir, Marie Keiding, Sigurjón Jónsson, Judicael Decriem, Karolina Michalczewska, Martin Hensch, Halldór Geirsson, Andy Hooper, Benedikt G. Ófeigsson. GPS and InSAR observations on Reykjanes
39 Conclusions Geophysics exploration methods are: Describing the presence and extent of hydrothermal systems Defining areas of high conductive heatflow (and low!) Defining major geological features including Upflow controlling structures Basement and lateral permeability controls Geophysics monitoring is indicating : Extent of pressure change (lateral recharge areas) Areas of mass change Fluid flow paths at depth Consider a suite of exploration methods, regardless of any pre-conceived model for a target area
40 Implications for modelling systems Geophysics interpretations are part of a sound multidisciplinary approach to system modelling Geophysical methods provide key constraints on concept models Indicating depths and extent of key characteristics that can only otherwise be speculated upon beyond wells Provide indications of deeper parameters (beyond drilling depth) that may affect long term behaviour Indicating conditions between adjacent hydrothermal systems Considering wider constraints on hydrothermal systems may have value in modelling more localised reservoir performance
Geophysics for Geothermal Exploration
Geophysics for Geothermal Exploration Dr. Hendra Grandis Geofisika - ITB Agenda Basic concept of Geophysics: : Review Geophysical signatures of a geothermal system Geophysical methods for geotermal exploration
More informationThe Role of Magnetotellurics in Geothermal Exploration
The Role of Magnetotellurics in Geothermal Exploration Adele Manzella CNR - Via Moruzzi 1 56124 PISA, Italy manzella@igg.cnr.it Foreword MT is one of the most used geophysical methods for geothermal exploration.
More informationRenewability Assessment of the Reykjanes Geothermal System, SW-Iceland. Gudni Axelsson et al. (see next slide) Iceland GeoSurvey (ÍSOR)
Renewability Assessment of the Reykjanes Geothermal System, SW-Iceland (see next slide) Iceland GeoSurvey (ÍSOR) Contributors Iceland GeoSurvey (ÍSOR): Gudni Axelsson, Egill Á. Gudnason, Ragna Karlsdóttir
More informationGNS Science Update. New Zealand Geothermal Workshop Dr. Greg Bignall. Department of Geothermal Sciences Wairakei Research Centre
GNS Science Update New Zealand Geothermal Workshop 2012 Dr. Greg Bignall 1 Department of Geothermal Sciences Wairakei Research Centre Crown Research Institute : New Zealand s leading supplier of earth
More informationIntegrated Geophysical Model for Suswa Geothermal Prospect using Resistivity, Seismics and Gravity Survey Data in Kenya
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Integrated Geophysical Model for Suswa Geothermal Prospect using Resistivity, Seismics and Gravity Survey Data in Kenya
More informationOverview of geophysical methods used in geophysical exploration
Overview of geophysical methods used in geophysical exploration Lúdvík S. Georgsson United Nations University Geothermal Training Programme Orkustofnun Reykjavík ICELAND The role of the geophysicist Measuring
More informationWestern EARS Geothermal Geophysics Context Mar-2016 William Cumming
Western EARS Geothermal Geophysics Context Mar-2016 William Cumming Cumming Geoscience, Santa Rosa CA wcumming@wcumming.com Office: +1-707-546-1245 Mobile: +1-707-483-7959 Skype: wcumming.com Kibiro Geophysics
More informationMagnetic and Gravity Methods for Geothermal Exploration
Magnetic and Gravity Methods for Geothermal Exploration Dr. Hendra Grandis Geophysics - ITB method and survey procedure Aero- or ground magnetic (covers a large area) Schlumberger resistivity mapping and
More informationMT Prospecting. Map Resistivity. Determine Formations. Determine Structure. Targeted Drilling
MT Prospecting Map Resistivity Determine Formations Determine Structure Targeted Drilling Cross-sectional interpretation before and after an MT survey of a mineral exploration prospect containing volcanic
More informationOVERVIEW OF THE WAIRAKEI-TAUHARA SUBSIDENCE INVESTIGATION PROGRAM
PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31 - February 2, 2011 SGP-TR-191 OVERVIEW OF THE WAIRAKEI-TAUHARA SUBSIDENCE INVESTIGATION
More informationOverview of Indonesian Geothermal System
Overview of Indonesian Geothermal System The Resources Beyond High Enthalpy Magmatic/Volcanic Systems By Dr.Eng. Suryantini ITB 4/3/2017 1 Outline Current Condition of Indonesian Geothermal Resources and
More informationNOTICE CONCERNING COPYRIGHT RESTRICTIONS
NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used
More informationDeep Roots of Geothermal Systems Understanding and Utilizing
Deep Roots of Geothermal Systems Understanding and Utilizing Gudni Axelsson, Iceland GeoSurvey Warwick Kissling, GNS Science Chris Bromley, GNS Science Central and South American Workshop on Geothermal
More informationGeothermal Systems: Geologic Origins of a Vast Energy Resource
Geothermal Systems: Geologic Origins of a Vast Energy Resource Energy From the Earth Energy-Land-Water Connections Speaker Series James E. Faulds, PhD Nevada State Geologist and Professor Nevada Bureau
More informationHeat (& Mass) Transfer. conceptual models of heat transfer. large scale controls on fluid movement. distribution of vapor-saturated conditions
Heat (& Mass) Transfer conceptual models of heat transfer temperature-pressure gradients large scale controls on fluid movement distribution of vapor-saturated conditions fluid flow paths surface manifestations
More informationEarly Identification and Management of Calcite Deposition in the Ngatamariki Geothermal Field, New Zealand
PROCEEDINGS, 42nd Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 13-15, 2017 SGP-TR-212 Early Identification and Management of Calcite Deposition in the
More informationGlobal occurrence of geothermal systems in different geologic settings: their identification and utilization
Global occurrence of geothermal systems in different geologic settings: their identification and utilization Mar-2016 William Cumming Cumming Geoscience, Santa Rosa CA wcumming@wcumming.com Office: +1-707-546-1245
More informationBULLS-EYE! - SIMPLE RESISTIVITY IMAGING TO RELIABLY LOCATE THE GEOTHERMAL RESERVOIR
BULLS-EYE! - SIMPLE RESISTIVITY IMAGING TO RELIABLY LOCATE THE GEOTHERMAL RESERVOIR Errol Anderson, Daryl Crosby and Greg Ussher PB Power GENZL Division, P O Box 3935, Auckland, New Zealand Key Words:
More informationMagneto-telluric (MT) surveys in a challenging environment at Lihir Island, PNG
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Magneto-telluric (MT) surveys in a challenging environment at Lihir Island, PNG Greg Ussher 1, Jacques Charroy 1, Jose (Jun)
More informationGeophysics Course Introduction to DC Resistivity
NORAD supported project in MRRD covering Capacity Building and Institutional Cooperation in the field of Hydrogeology for Faryab Province Afghanistan Geophysics Course Introduction to DC Resistivity By
More informationGeothermal Application of Borehole Logging in New Zealand
Geothermal Application of Borehole Logging in New Zealand D. McNamara, C. Massiot, M. Lawrence HADES 2011, 25th May New Zealand s High Temperature Geothermal Logging Drilling Parameters e.g. rate of penetration
More informationLawrence Berkeley Laboratory, MS 74R316C, One Cyclotron Road, Berkeley CA 94720, USA.
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 The Importance of Full Impedance Tensor Analysis for 3D Magnetotelluric Imaging the Roots of High Temperature Geothermal
More informationThe Afar Rift Consortium
The Afar Rift Consortium University of Bristol University of Oxford University of Cambridge British Geological Survey University of Rochester University of Auckland, NZ Opportunistic programme following
More informationExploration of Geothermal High Enthalpy Resources using Magnetotellurics an Example from Chile
Exploration of Geothermal High Enthalpy Resources using Magnetotellurics an Example from Chile Ulrich Kalberkamp, Federal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, 30655 Hannover,
More informationINTERGRATED GEOPHYSICAL METHODS USED TO SITE HIGH PRODUCER GEOTHERMAL WELLS
Presented at Short Course VII on Exploration for Geothermal Resources, organized by UNU-GTP, GDC and KenGen, at Lake Bogoria and Lake Naivasha, Kenya, Oct. 27 Nov. 18, 2012. GEOTHERMAL TRAINING PROGRAMME
More informationRepeat Microgravity and Leveling Surveys at Leyte Geothermal Production Field, North Central Leyte, Philippines
Proceedings World Geothermal Congress 25 Antalya, Turkey, 24-29 April 25 Repeat Microgravity and Leveling Surveys at Leyte Geothermal Production Field, North Central Leyte, Philippines Nilo A. Apuada and
More informationA DEEP (5 km?) GEOTHERMAL SCIENCE DRILLING PROJECT FOR THE TAUPO VOLCANIC ZONE WHO WANTS IN?
A DEEP (5 km?) GEOTHERMAL SCIENCE DRILLING PROJECT FOR THE TAUPO VOLCANIC ZONE WHO WANTS IN? G. Bignall and B. Carey Wairakei Research Centre, GNS Science, Taupo, New Zealand g.bignall@gns.cri.nz Keywords:
More informationCharacterizing a geothermal reservoir using broadband 2-D MT survey in Theistareykir, Iceland
KMS Technologies KJT Enterprises Inc. An EMGS/RXT company Characterizing a geothermal reservoir using broadband 2-D MT survey in Theistareykir, Iceland Yu, G., Strack, K. M., Allegar, N., Gunnarsson, Á.
More informationEnvironmental Research Helps Enable Rapid Growth of Geothermal Generation in New Zealand. Chris Bromley
Environmental Research Helps Enable Rapid Growth of Geothermal Generation in New Zealand JOGMEC International Geothermal Conference, Tokyo, 14-Oct-2014 Chris Bromley, Wairakei Research Centre c.bromley@gns.cri.nz
More informationGeophysical Surveys of The Geothermal System of The Lakes District Rift, Ethiopia
Geophysical Surveys of The Geothermal System of The Lakes District Rift, Ethiopia By: Befekadu Oluma By: Geophysics Department Geological Survey of Ethiopia The formation of the rift was preceded by a
More informationNOTICE CONCERNING COPYRIGHT RESTRICTIONS
NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used
More informationA 3D MULTI-DISCIPLINARY INTERPRETATION OF THE BASEMENT OF THE TAUPO VOLCANIC ZONE, NEW ZEALAND
PROCEEDINGS, Thirty-Seventh Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 30 - February 1, 2012 SGP-TR-194 A 3D MULTI-DISCIPLINARY INTERPRETATION OF THE
More informationChapter 13. Groundwater
Chapter 13 Groundwater Introduction Groundwater is all subsurface water that completely fills the pores and other open spaces in rocks, sediments, and soil. Groundwater is responsible for forming beautiful
More informationJapan Engineering Consultants, Inc., Energy and Industrial Technology Development Organization,Tokyo, Japan
DEEP GEOTHERMAL STRUCTURE AND THE HYDROTHERMAL SYSTEM THE GEOTHERMAL FIELD, JAPAN M. H. K. MATSUDA', T. K. Japan Engineering Consultants, Inc., Japan Energy and Industrial Technology Development Organization,Tokyo,
More informationGeophysics for Environmental and Geotechnical Applications
Geophysics for Environmental and Geotechnical Applications Dr. Katherine Grote University of Wisconsin Eau Claire Why Use Geophysics? Improve the quality of site characterization (higher resolution and
More informationTaller de Geotermica en Mexico Geothermal Energy Current Technologies
Taller de Geotermica en Mexico Geothermal Energy Current Technologies presented by Paul Brophy, President/CEO EGS Inc. Mexico City October 10 th 2011 Presentation Topics General Geothermal Discussion Exploration
More informationAPPLICATION OF GEOPHYSICS TO GEOTHERMAL ENERGY EXPLORATION AND MONITORING OF ITS EXPLOITATION
Presented at Short Course III on Exploration for Geothermal Resources, organized by UNU-GTP and KenGen, at Lake Naivasha, Kenya, October 24 - November 17, 2008. GEOTHERMAL TRAINING PROGRAMME Kenya Electricity
More informationHorizontal gradient and band-pass filter of aeromagnetic data image the subsurface structure; Example from Esh El Mellaha Area, Gulf of Suez, Egypt.
Horizontal gradient and band-pass filter of aeromagnetic data image the subsurface structure; Example from Esh El Mellaha Area, Gulf of Suez, Egypt. Essam Aboud 1, Serguei Goussev 2, Hassan Hassan 2, Suparno
More informationSTRATIGRAPHY AND HYDROTHERMAL ALTERATION ENCOUNTERED BY MONITOR WELLS COMPLETED AT NGATAMARIKI AND ORAKEI KORAKO IN 2011
STRATIGRAPHY AND HYDROTHERMAL ALTERATION ENCOUNTERED BY MONITOR WELLS COMPLETED AT NGATAMARIKI AND ORAKEI KORAKO IN 2011 Catherine Boseley 1, Greg Bignall 2, Andrew Rae 2, Isabelle Chambefort 2, Brandon
More informationNumerical Simulation Study of the Mori Geothermal Field, Japan
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Numerical Simulation Study of the Mori Geothermal Field, Japan Kazuyoshi Osada 1, Mineyuki Hanano 2, Kei Sato 1, Tatsuya Kajiwara
More informationGEOPHYSICAL STUDY OF THE NORTHERN PART OF TE KOPIA GEOTHERMAL FIELD, TAUPO VOLCANIC ZONE, NEW ZEALAND
Proceedings 20th Geothermal Workshop 1998 GEOPHYSICAL STUDY OF THE NORTHERN PART OF TE KOPIA GEOTHERMAL FIELD, TAUPO VOLCANIC ZONE, NEW ZEALAND Institute, The University of Auckland, Auckland, SUMMARY
More informationPUBLISHED VERSION.
PUBLISHED VERSION S. Thiel, J.R. Peacock, J. MacFarlane and G. Heinson Electromagnetic monitoring of fluid injection - lessons learned Proceedings of the 2012 Australian Geothermal Energy Conference, 2012
More informationGEOTHERMAL ENERGY POTENTIAL FOR LONGONOT PROSPECT, KENYA. By Mariita N. O. Kenya Electricity Generating Company
GEOTHERMAL ENERGY POTENTIAL FOR LONGONOT PROSPECT, KENYA By Mariita N. O. Kenya Electricity Generating Company PRESENTATION OUTLINE INTRODUCTION REGIONAL SETTING GEOLOGY GEOTHERMAL MANIFESTATIONS HYDROGEOLOGY
More informationGEOTHERMAL POTENTIAL OF ST. KITTS AND NEVIS ISLANDS
GEOTHERMAL POTENTIAL OF ST. KITTS AND NEVIS ISLANDS By Gerald W. Huttrer Geothermal Management Company, Inc. For the Eastern Caribbean Geothermal Energy Project ( Geo- Caraibes ; G-C ) Presented Using
More informationCharacterizing a Geothermal Reservoir Using Broadband 2-D MT Survey in Theistareykir, Iceland
Proceedings World Geothermal Congress 2 Bali, Indonesia, 259 April 2 Characterizing a Geothermal Reservoir Using Broadband 2-D MT Survey in Theistareykir, Iceland Gang Yu, Árni Gunnarsson 2, Zhanxiang
More informationFigure 1: Location of principal shallow conductors at Alpala (anomalies C0-C10; 5 Ohm/m surfaces, red) and shallow zones of electrical chargeability
Figure 1: Location of principal shallow conductors at Alpala (anomalies C0-C10; 5 Ohm/m surfaces, red) and shallow zones of electrical chargeability (85 msecs, yellow-green) shown on iso-surfaces of MVI
More informationRenewability Assessment of the Reykjanes Geothermal System, SW-Iceland
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Renewability Assessment of the Reykjanes Geothermal System, SW-Iceland Gudni Axelsson 1),2), Andri Arnaldsson 3), Jean-Claude
More informationDoes the SDCP need inputs from geology?
The British Geological Survey s Experience and Expertise in Supporting Projects such as the Sirte Depression Connection Project David Ovadia Director of International Kingsley Dunham Centre Keyworth Nottingham
More informationCHAPTER 5 GEOPHYSICAL SURVEY. 5.1 Purpose of Survey
CHAPTE 5 GEOPHYSICAL SUVEY 5.1 Purpose of Survey The objective of the Time Domain Electro- Magnetic (TDEM) survey was to define the electrical structure of the Stampriet Artesian Basin and relate this
More informationEarthquakes. Earthquakes are caused by a sudden release of energy
Earthquakes Earthquakes are caused by a sudden release of energy The amount of energy released determines the magnitude of the earthquake Seismic waves carry the energy away from its origin Fig. 18.1 Origin
More informationSubsurface Characterization of the Leyte Geothermal Field, Philippines using Magnetotellurics
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Subsurface Characterization of the Leyte Geothermal Field, Philippines using Magnetotellurics David Carlo S. Austria, Randy
More informationBRGM. Power from volcanic areas. started in Italy 1903 (Larderello, tuscany) ca 800 MWe today
Power from volcanic areas started in Italy 1903 (Larderello, tuscany) ca 800 MWe today Conversion efficiency [%] 2 10 januari 2011 TNO Nieuwe huisstijl BRGM Geothermal power: Conversion Efficiency 25 20
More information2) First Order Resistivity Effects. The first order effects discussed above in the main reflect vertical resistivity features. (1) Surficial Zone (R3)
The first and second order effects represent clear and obvious features in the data, while the third order effects are subtle, appearing real and consistent, but on the limit of interpretability. A number
More informationGeophysical exploration methods at European sites
Geophysical exploration methods at European sites David Bruhn, GFZ Potsdam, Section 5.2 Geothermics, 14473 Potsdam, Germany Most geophysical exploration methods have been developed for the oil and gas
More informationGEOTHERMAL EXPLORATION PHASE
Presented at Short Course on Geothermal Project Management and Development, organized by UNU-GTP, KenGen and MEMD-DGSM, at the Imperial Botanical Beach Hotel, Entebbe, Uganda, November 20-22, 2008. GEOTHERMAL
More informationSUB-SURFACE GEOLOGY AND HYDROTHERMAL ALTERATION OF WELLS LA-9D AND LA-10D OF ALUTO LANGANO GEOTHERMAL FIELD, ETHIOPIA
Proceedings, 6 th African Rift Geothermal Conference Addis Ababa, Ethiopia, 2 nd -4 th November 2016 SUB-SURFACE GEOLOGY AND HYDROTHERMAL ALTERATION OF WELLS LA-9D AND LA-10D OF ALUTO LANGANO GEOTHERMAL
More informationGeothermal Energy Resources Exploration using Gravity and magnetics. By Mariita, N.O. KenGen
Geothermal Energy Resources Exploration using Gravity and magnetics By Mariita, N.O. KenGen What is Geothermal Energy? Geothermal Energy = heat from the Earth Transmitted by fluids via fractures and pores
More informationANN ROBERTSON TAIT PRESENT POSITION. Business Development Manager / Senior Geologist EXPERTISE
ANN ROBERTSON TAIT PRESENT POSITION Business Development Manager / Senior Geologist EXPERTISE Integration of geoscientific and engineering analyses to solve resource development and management problems
More informationMODELLING OF CONDITIONS CLOSE TO GEOTHERMAL HEAT SOURCES
MODELLING OF CONDITIONS CLOSE TO GEOTHERMAL HEAT SOURCES Sæunn Halldórsdóttir (ÍSOR), Inga Berre (UiB), Eirik Keilegavlen (UiB) and Guðni Axelsson (ÍSOR) Photo: Auður Agla, ÍSOR Heat transfer in geothermal
More informationSeismic Reflection Imaging across the Johnson Ranch, Valley County, Idaho
Seismic Reflection Imaging across the Johnson Ranch, Valley County, Idaho Report Prepared for the Skyline Corporation Lee M. Liberty Center for Geophysical Investigation of the Shallow Subsurface (CGISS)
More informationPreliminary Microgravity Measurement Of Paka Geothermal Prospect
Preliminary Microgravity Measurement Of Paka Geothermal Prospect Presented by: Levi Shako and Calistus Ndongoli Date: 4/November/2016 Venue: Addis Ababa, Ethiopia Introduction Microgravity is a geophysical
More informationTHE GEOTHERMAL POTENTIAL OF BILIRAN ISLAND, PHILIPPINES
Proceedings of the 8th Asian Geothermal Symposium, December 9-10, 2008 THE GEOTHERMAL POTENTIAL OF BILIRAN ISLAND, PHILIPPINES Nilo A. Apuada 1 and Gudmundur F. Sigurjonsson 1 1 Envent Holding Philippines,
More informationPART A: Short-answer questions (50%; each worth 2%)
PART A: Short-answer questions (50%; each worth 2%) Your answers should be brief (just a few words) and may be written on these pages if you wish. Remember to hand these pages in with your other exam pages!
More informationTHREE DIMENSIONAL INVERSIONS OF MT RESISTIVITY DATA TO IMAGE GEOTHERMAL SYSTEMS: CASE STUDY, KOROSI GEOTHERMAL PROSPECT.
Proceedings, 6 th African Rift Geothermal Conference Addis Ababa, Ethiopia, 2 nd 4 th November 2016 THREE DIMENSIONAL INVERSIONS OF MT RESISTIVITY DATA TO IMAGE GEOTHERMAL SYSTEMS: CASE STUDY, KOROSI GEOTHERMAL
More informationComparison of 1-D, 2-D and 3-D Inversion Approaches of Interpreting Electromagnetic Data of Silali Geothermal Area
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Comparison of 1-D, 2-D and 3-D Inversion Approaches of Interpreting Electromagnetic Data of Silali Geothermal Area Charles
More informationApplied Geophysics for Environmental Site Characterization and Remediation
Applied Geophysics for Environmental Site Characterization and Remediation MSECA Webinar September 24, 2015 John Mundell, P.E., L.P.G. Ryan Brumbaugh, L.P.G. MUNDELL & ASSOCIATES, INC. Webinar Objective
More informationTHREE DIMENSIONAL MODELING OF GEOELECTRICAL STRUCTURE BASED ON MT AND TDEM DATA IN MORI GEOTHERMAL FIELD, HOKKAIDO, JAPAN
THREE DIMENSIONAL MODELING OF GEOELECTRICAL STRUCTURE BASED ON MT AND TDEM DATA IN MORI GEOTHERMAL FIELD, HOKKAIDO, JAPAN Tatsuya Kajiwara 1, Tohru Mogi 2, Elena Fomenko 3 and Sachio Ehara 4 1 JMC Geothermal
More informationGeothermal Potential Assessment in Northern Rwanda
Geothermal Potential Assessment in Northern Rwanda 2 nd African Rift Geothermal Conference Entebbe, Uganda Ngaruye, Jean-Claude 1) Jolie, Egbert 2) 1) Rwanda Geology and Mining Authority, OGMR 2) Federal
More informationGeothermometer, Geoindicator and Isotope Monitoring in Lahendong Wells during
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Geothermometer, Geoindicator and Isotope Monitoring in Lahendong Wells during 2010-2012 Azka G., Suryanto S. and Yani A.
More informationEAS 116 Earthquakes and Volcanoes
EAS 116 Earthquakes and Volcanoes J. Haase Forecasting Volcanic Eruptions Assessment of Volcanic Hazard Is that volcano active? Mount Lassen: 12000 BP and 1915 Santorini, IT: 180,000 BP, 70,000 BP, 21000
More information1D and 2D Inversion of the Magnetotelluric Data for Brine Bearing Structures Investigation
1D and 2D Inversion of the Magnetotelluric Data for Brine Bearing Structures Investigation Behrooz Oskooi *, Isa Mansoori Kermanshahi * * Institute of Geophysics, University of Tehran, Tehran, Iran. boskooi@ut.ac.ir,
More informationHigh Resolution Seismic for Minerals
High Resolution Seismic for Minerals Greg Turner HiSeis Pty Ltd MEGWA April 2013 WELCOME HiSeis Pty Ltd, Suite 4 Enterprise Unit 3, 9 DeLaeter Way, Bentley, WA 6102 Ph: +61 8 9470 9866 www.hiseis.com Used
More informationProf. Giuseppe Mandrone Prof. Cesare Comina dott. Luca Guglielmetti Dept. Earth Science, Univ. Torino (ITA)
Prof. Giuseppe Mandrone Prof. Cesare Comina dott. Luca Guglielmetti Dept. Earth Science, Univ. Torino (ITA) Multidisciplinary approach of geothermal prospection at Terme di Vinadio/Valdieri (Cuneo - Italy):
More informationSeismic Reflection Data and Conceptual Models for Geothermal Development in Nevada
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Seismic Reflection Data and Conceptual Models for Geothermal Development in Nevada Glenn Melosh 1, William Cumming 2, John Casteel
More informationPrinciples of Applied Geophysics
Principles of Applied Geophysics Fifth edition D.S. Parasnis Professor emeritus of Applied Geophysics Department of Applied Geophysics, University ofluled, Lulea, Sweden Fellow of the Royal Swedish Academy
More informationUNDERSTANDING THE RESISTIVITIES OBSERVED IN GEOTHERMAL SYSTEMS
UNDERSTANDING THE RESISTIVITIES OBSERVED IN GEOTHERMAL SYSTEMS Greg Ussher, Colin Harvey, Roy Johnstone, Errol Anderson PB Power GENZL Division, New Zealand Key Words: geothermal, resistivity, rock properties.
More informationPRELIMINARY. Select Geophysical Methods and Groundwater Modeling: Examples from USGS studies. Claudia Faunt and a cast of others
Select Geophysical Methods and Groundwater Modeling: Examples from USGS studies Claudia Faunt and a cast of others Current Preliminary Studies Stanford Water in the West Groundwater Data Workshop Series:
More information. Slide 1. Geological Survey of Ethiopia, P.O.Box 2302, Addis Ababa, Ethiopia
The electrical resistivity structure of the Southern Main Ethiopian Rift (around the Lake Abaya geothermal prospect) revealed by magneto-telluric telluric imaging Mohammednur Desissa and Yohanes Lema Geological
More informationGEOTHERMAL RESOURCE CONCEPTUAL MODELS USING SURFACE EXPLORATION DATA
PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009 SGP-TR-187 GEOTHERMAL RESOURCE CONCEPTUAL MODELS USING SURFACE EXPLORATION
More informationNUMERICAL MODELING STUDY OF SIBAYAK GEOTHERMAL RESERVOIR, NORTH SUMATRA, INDONESIA
PROCEEDINGS, Twenty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 29-31, 21 SGP-TR-168 NUMERICAL MODELING STUDY OF SIBAYAK GEOTHERMAL RESERVOIR,
More informationAirborne gravity gradiometer surveying of petroleum systems under Lake Tanganyika, Tanzania
Airborne gravity gradiometer surveying of petroleum systems under Lake Tanganyika, Tanzania D. Roberts Beach Energy P. Roy Chowdhury CGG S. J. Lowe CGG A. N. Christensen CGG Outline Introduction Geology
More informationGEOPHYSICAL EXPLORATION OF SABALAN GEOTHERMAL PROSPECTS IN IRAN
GEOPHYSICAL EXPLORATION OF SABALAN GEOTHERMAL PROSPECTS IN IRAN Christopher Bromley 2, Khosrow Khosrawi and Behnam Talebi Renewable Energy Organisation of Iran (SUNA), Ministry of Energy, P.O. Box 455-6398,
More informationGeophysics and Mapping. presented by: Stephen Brown
Geophysics and Mapping presented by: Stephen Brown Recommended book for INIGEMM Geophysics for the mineral exploration geoscientist, by Michael Dentith and Stephen Mudge, Cambridge University Press, 2014.
More information3D MAGNETOTELLURIC SURVEY AT THE YANAIZU-NISHIYAMA GEOTHERMAL FIELD, NORTHERN JAPAN
3D MAGNETOTELLURIC SURVEY AT THE YANAIZU-NISHIYAMA GEOTHERMAL FIELD, NORTHERN JAPAN Toshihiro Uchida 1, Shinichi Takakura 1, Takumi Ueda 1, Masaho Adachi 2, Hitoshi Ozeki 2, Kunikazu Kamada 3, Tatsuya
More informationGroundwater Sustainability at Wadi Al Bih Dam, Ras El Khaimah, United Arab Emirates (UAE) using Geophysical methods
Groundwater Sustainability at Wadi Al Bih Dam, Ras El Khaimah, United Arab Emirates (UAE) using Geophysical methods Ahmed Murad, Amir Gabr, Saber Mahmoud, Hasan Arman & Abdulla Al Dhuhoori Geology Department
More informationGeothermal Surface Exploration in Iceland
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Geothermal Surface Exploration in Iceland Bjarni Richter, Benedikt Steingrímsson, Magnús Ólafsson and Ragna Karlsdóttir Iceland
More informationApplication of Transient Electromagnetics for the Investigation of a Geothermal Site in Tanzania
Application of Transient Electromagnetics for the Investigation of a Geothermal Site in Tanzania Gerlinde Schaumann, Federal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, 30655 Hannover,
More informationTECHNICAL REVIEW OF GEOTHERMAL POTENTIAL OF NGOZI AND SONGWE GEOTHERMAL PROSPECTS, TANZANIA.
Proceedings, 6 th African Rift Geothermal Conference Addis Ababa, Ethiopia, 2 nd 4 th November 2016 TECHNICAL REVIEW OF GEOTHERMAL POTENTIAL OF NGOZI AND SONGWE GEOTHERMAL PROSPECTS, TANZANIA 1 Kenneth
More informationGEOPHYSICAL METHODS USED IN GEOTHERMAL EXPLORATION
Presented at Short Course IV on Exploration for Geothermal Resources, organized by UNU-GTP, KenGen and GDC, at Lake Naivasha, Kenya, November 1-22, 2009. Kenya Electricity Generating Co., Ltd. GEOTHERMAL
More informationDeformation, Strength, and Failure Mode of Deep Geothermal Reservoir Rocks
European Geothermal Congress 2016 Strasbourg, France, 19-24 Sept 2016 Deformation, Strength, and Failure Mode of Deep Geothermal Reservoir Rocks Paul A. Siratovich 1, Marlène C. Villeneuve 2, Michael J.
More informationB7 Applications of DC resistivity exploration
B7 Applications of DC resistivity exploration Modern DC resistivity surveys collect data for generating a 2-D or 3-D geoelectric model of the Earth. A simple 1-D analysis does not often yield results that
More informationGRAVITY AND MAGNETIC METHODS
Presented at Short Course IX on Exploration for Geothermal Resources, organized by UNU-GTP, GDC and KenGen, at Lake Bogoria and Lake Naivasha, Kenya, Nov. 2-24, 2014. Kenya Electricity Generating Co.,
More informationCHARACTERIZING FEED ZONES IN GEOTHERMAL FIELDS: INTEGRATED LEARNINGS FROM COMPLETION TESTING, IMAGE LOGS AND CONTINUOUS CORE
CHARACTERIZING FEED ZONES IN GEOTHERMAL FIELDS: INTEGRATED LEARNINGS FROM COMPLETION TESTING, IMAGE LOGS AND CONTINUOUS CORE Trystan Glynn-Morris, Katie Mclean and Kerin Brockbank Contact Energy Ltd, Wairakei
More informationGeophysical Methods in Geothermal Exploration
Geochemical and Geophysical Methodologies in Geothermal Exploration Geophysical Methods in Geothermal Exploration by Adele Manzella Italian National Research Council International Institute for Geothermal
More informationMODELLING GEOTHERMAL CIRCULATION IN A TVZ-LIKE SETTING
MODELLING GEOTHERMAL CIRCULATION IN A TVZ-LIKE SETTING David Dempsey 1, Julie Rowland 2, Rosalind Archer 1 and Susan Ellis 3 1 Department of Engineering Science, University of Auckland, Private Bag 92019,
More informationNumerical Simulation of Devolution and Evolution of Steam-Water Two-Phase Zone in a Fractured Geothermal Reservoir at Ogiri, Japan
GRC Transactions, Vol. 37, 2013 Numerical Simulation of Devolution and Evolution of Steam-Water Two-Phase Zone in a Fractured Geothermal Reservoir at Ogiri, Japan Yohei Tateishi 1, Ryuichi Itoi 1, Toshiaki
More informationAn Introduction to Geophysical Exploration
An Introduction to Geophysical Exploration Philip Kearey Department of Earth Sciences University of Bristol Michael Brooks Ty Newydd, City Near Cowbridge Vale of Glamorgan Ian Hill Department of Geology
More informationGeodiversity of geothermal fields in the Taupo Volcanic Zone
Geodiversity of geothermal fields in the Taupo Volcanic Zone Ashley D. Cody DOC Research & Development Series 281 Published by Science & Technical Publishing Department of Conservation PO Box 10420, The
More informationIwan Yandika Sihotang, Tommy Hendriansyah, Nanang Dwi Ardi
Proceedings Indonesia International Geothermal Convention & Exhibition 2014 Jakarta Convention Center, Indonesia 4-6 June 2014 FOCAL MECHANISM FOR DETERMINING FAULT PLANES ORIENTATION IN GAMMA GEOTHERMAL
More informationResistivity Model Based on 2D Inversion of Magnetotelluric Sounding Data in Bacon- Manito, Southern Luzon, Philippines
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Resistivity Model Based on 2D Inversion of Magnetotelluric Sounding Data in Bacon- Manito, Southern Luzon, Philippines
More information