Case Study: Tauhara New Zealand. Santiago de Chile, May 2014

Size: px
Start display at page:

Download "Case Study: Tauhara New Zealand. Santiago de Chile, May 2014"

Transcription

1 Case Study: Tauhara New Zealand The Geothermal Institute University of Auckland Bridget Lynne Santiago de Chile, May 2014

2 Bridget Y. Lynne Mick Pender Trystan Glynn-Morris Tauhara Subsidence Case Study

3 Analytical techniques traditionally used for rock analysis XRD identifies mineralogy Petrography Primary vs secondary minerals Alteration mineralogy Fluid/rock interaction XRF/microprobe - composition All techniques contribute to our understanding of subsurface processes

4 TALK AIMS: 1. To show how the addition of SEM enhances our understanding of subsurface processes and fluid-rock interactions 2. COMPARE 2D imaging (petrography) 3D imaging (SEM)

5 3. Combine SEM with compressibility testing Information on rock strength + subsurface processes Subsidence in geothermal areas (Case Study)

6 Case Study known subsidence bowls Tauhara Geothermal Field Tauhara Tauhara geothermal field Taupo township

7 Prior to consent for further geothermal development Cause of known subsidence bowls must be understood Extensive drilling program

8 Drilling Aims Determine subsurface processes responsible for subsidence Identify weak horizons and possible future subsidence sites Establish physical characteristics of subsurface rocks

9 Continuous core drilling program Spa Bowl Rakanui Bowl Outside Margin Inside Crown Rd Bowl

10 Multiple testing approach undertaken Physical Characteristics XRD Clay analysis Petrography Porosity Scanning Electron Microscopy (SEM) Geotechnical Tests Pocket penetrometer tests Shear Vane tests Stiffness tests Atterberg Limit tests Compressibility tests to evaluate rock strength

11 For each slide Drill hole with stratigraphic column I = inside subsidence bowl M = margin O = outside Sample site Compressibility Value (CV) High CV = strong rock (1700 MPa) Low CV = weak rock (30 MPa) 2D vs 3D imaging Petrography vs SEM

12 22m THM16 (I) TI po HEB 12m 48m 30m THM16 (I) TI po HEB 12m 48m 215m 215m W Taupo Ignimbrite W 804m Pumice-rich 804m

13 Taupo Ignimbrite Pumice horizon 22 m 30 m CV = 294 MPa CV = 108 MPa Unaltered?? Process?? Dissolution Environmental change at 30 m to acidic conditions 1 mm 1 mm 20 µm 20 µm

14 Hydrothermal Eruption Breccia THM16 (I) TI po HEB 12m 59m 215m 59m CV = 36 MPa (very weak) Kaolinite ph ~3 T <120 C Acidic conditions W 804m

15 THM m Kaolinite platelets 36 MPa 2 µm

16 Petrographic image THM16 (I) TI po 48m 98m 215m Clay matrix Crystals Hydrothermal Eruption Breccia 98m CV = 65 MPa W 804m

17 98m CV = 65 MPa Petrographic image THM16 (I) TI po HE B 48m 98m 215m W SEM image 804m

18 Clay 1 = illite ph 5-6 T~ 220 C Environmental change ph decrease 98m CV = 65 MPa THM 16 (I) Clay 2 = kaolinite ph = 3-4 T <120 C 100µm

19 chlorite THM13 (O) H hornblende Chlorite coating fragments Lithic fragment 89m CV = 490 MPa Oranui Fmn O U M 24m 89m 130m 245m L 368m 381m

20 Fractured crystals Etched edges THM12 (M) O 25m U 160m 263m 263m CV = 84 MPa Chlorite + illite + feldspars M L 360m 381m

21 381 m CV = 522 MPa Chlorite/illite THM12 (M) O 25m U 160m M 268m L 360m 381m

22 THM14 (O) po 28m O 93m 325m CV = 390 MPa Illite + crystals U M M L W 186m 277m 325m 388m

23 THM13 (O) O 24m 130m U Crystals etched edges in a clay groundmass (illite) 411m CV = 1730 MPa Illite/feldspar M L 245m 368m 411m

24 411m CV = 1730 MPa Illite/feldspar

25 20 µm THM m CV = 1730 MPa

26 50 µm THM m CV = 1730 MPa

27 Crystal structural integrity contributes to rock strength 2 µm 5 µm 10 µm 263 m CV = 84 MPa THM m CV = 522 MPa THM m CV = 1730 MPa THM 13

28 Compare SEM to Petrographic Microscopy

29 Summary SEM = greater detail than petrographic imaging SEM = detailed information on fluid-rock interactions subsurface processes + environments

30 Summary Compressibility testing Combination of SEM rock strength + compressibility testing Useful method in establishing: (1) rock strength (2) subsurface processes responsible for altering the rock which affects its strength

31 Subsidence (SEM + Constrained Modulus Values) Subsidence studies can be applied to pre-exploitation phases Environmental Impact Studies producing fields Evaluate potential risk of subsidence following fluid extraction Identification of preexploitation rock characteristics e.g. natural vs induced subsidence Identify lithologies susceptible to subsidence in existing fields Useful study to identify subsurface processes showing why some lithologic units subside and others do not

32 Acknowledgements Good Method to use when trying to understand subsidence in geothermal areas Contact Energy Catherine Hobbis FEI

A Closer Look At Hydrothermal Alteration and Fluid-Rock Interaction Using Scanning Electron Microscopy

A Closer Look At Hydrothermal Alteration and Fluid-Rock Interaction Using Scanning Electron Microscopy Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 A Closer Look At Hydrothermal Alteration and Fluid-Rock Interaction Using Scanning Electron Microscopy Bridget Y. Lynne

More information

OVERVIEW OF THE WAIRAKEI-TAUHARA SUBSIDENCE INVESTIGATION PROGRAM

OVERVIEW 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 information

GEOTECHNICAL INVESTIGATIONS OF SUBSIDENCE IN THE WAIRAKEI- TAUHARA GEOTHERMAL FIELD

GEOTECHNICAL INVESTIGATIONS OF SUBSIDENCE IN THE WAIRAKEI- TAUHARA GEOTHERMAL FIELD GEOTECHNICAL INVESTIGATIONS OF SUBSIDENCE IN THE WAIRAKEI- TAUHARA GEOTHERMAL FIELD Graham Ramsay 1, Trystan Glynn-Morris 2, Michael Pender 3 and Melvyn Griffiths 4 1 Beca Infrastructure Limited P O Box

More information

SUB-SURFACE GEOLOGY AND HYDROTHERMAL ALTERATION OF WELLS LA-9D AND LA-10D OF ALUTO LANGANO GEOTHERMAL FIELD, ETHIOPIA

SUB-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 information

CHARACTERIZING 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 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 information

GEOTHERMAL FIELDS, NEW ZEALAND

GEOTHERMAL FIELDS, NEW ZEALAND Proceedings 24* New Zealand Geothermal Workshop 2002 POROSITY AND PERMEABILITY IN THE BASEMENT ROCKS AT THE AND GEOTHERMAL FIELDS, NEW ZEALAND R.L. K. Institute of Geological of Geological 1 Nuclear Sciences,

More information

STRATIGRAPHY 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 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 information

SUBSURFACE HYDROTHERMAL ALTERATION AT THE ULUBELU GEOTHERMAL FIELD, LAMPUNG, SOUTHERN SUMATRA, INDONESIA. Suharno 1, 2 and PRL Browne 2

SUBSURFACE HYDROTHERMAL ALTERATION AT THE ULUBELU GEOTHERMAL FIELD, LAMPUNG, SOUTHERN SUMATRA, INDONESIA. Suharno 1, 2 and PRL Browne 2 PROCEEDINGS, Twenty-fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 24-26, 2000 SGP-TR-165 SUBSURFACE HYDROTHERMAL ALTERATION AT THE ULUBELU GEOTHERMAL

More information

DRA-3a. DISTRIBUTION OF CLAY MINERALS AND CLAY SIZE MATERIAL IN THE QUESTA ROCK PILES AND ANALOG MATERIAL

DRA-3a. DISTRIBUTION OF CLAY MINERALS AND CLAY SIZE MATERIAL IN THE QUESTA ROCK PILES AND ANALOG MATERIAL . DISTRIBUTION OF CLAY MINERALS AND CLAY SIZE MATERIAL IN THE QUESTA ROCK PILES AND ANALOG MATERIAL V.T. McLemore, March 3, 28 1. STATEMENT OF THE PROBLEM What is the difference between clay and clay sized

More information

Drill Cuttings Analysis: How to Determine the Geology of a Formation and Reservoir

Drill Cuttings Analysis: How to Determine the Geology of a Formation and Reservoir Drill Cuttings Analysis: How to Determine the Geology of a Formation and Reservoir Chuck Stringer ASA Manager Southern Region 2015 TECH MKT_2014-BD-REG-1673 1 The one item that has lacked serious consideration

More information

Leo G. Giannetta, Shane K. Butler, Nathan D. Webb Illinois State Geological Survey University of Illinois Urbana-Champaign

Leo G. Giannetta, Shane K. Butler, Nathan D. Webb Illinois State Geological Survey University of Illinois Urbana-Champaign Identification of Clay Microporosity in the Reservoir Characterization of the Cypress Sandstone: Implications for Petrophysical Analysis, Reservoir Quality, and Depositional Environment Leo G. Giannetta,

More information

NOTICE CONCERNING COPYRIGHT RESTRICTIONS

NOTICE 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 information

Using Clay Microporosity to Improve Formation Evaluation in Potential ROZs: Cypress Sandstone, Illinois Basin

Using Clay Microporosity to Improve Formation Evaluation in Potential ROZs: Cypress Sandstone, Illinois Basin Using Clay Microporosity to Improve Formation Evaluation in Potential ROZs: Cypress Sandstone, Illinois Basin Leo G. Giannetta, Nathan D. Webb, Shane K. Butler, and Nathan P. Grigsby Illinois State Geological

More information

Modelling of Subsidence at the Wairakei Geothermal Field, New Zealand

Modelling of Subsidence at the Wairakei Geothermal Field, New Zealand Modelling of Subsidence at the Wairakei Geothermal Field, New Zealand Wesley Koros 1, John O Sullivan 1, Justin Pogacnik 1 and Mike O Sullivan 1 1 Department of Engineering Science, University of Auckland,

More information

WAMUNYU EDWARD MUREITHI I13/2358/2007

WAMUNYU EDWARD MUREITHI I13/2358/2007 WAMUNYU EDWARD MUREITHI I13/2358/2007 Olkaria geothermal area is situated south of Lake Naivasha on the floor of the southern segment of the Kenya rift. The geology of the Olkaria Geothermal area is subdivided

More information

Applicability of Near-Infrared (NIR) spectroscopy for sensor based sorting of a porphyry copper ore.

Applicability of Near-Infrared (NIR) spectroscopy for sensor based sorting of a porphyry copper ore. Applicability of Near-Infrared (NIR) spectroscopy for sensor based sorting of a porphyry copper ore. OCM conference presentation 07-03-2013 TU Delft, Resource Engineering section M.Dalm MSc. 1 Table of

More information

Chapter 4 Implications of paleoceanography and paleoclimate

Chapter 4 Implications of paleoceanography and paleoclimate Age ka / Chapter 4 Implications of paleoceanography and paleoclimate 4.1 Paleoclimate expression 4.2 Implications of paleocirculation and tectonics 4.3 Paleoenvironmental reconstruction MD05-2901 (Liu

More information

I.S. 398 GEOLOGICAL TESTING PROCEDURES, RESULTS and BACKGROUND

I.S. 398 GEOLOGICAL TESTING PROCEDURES, RESULTS and BACKGROUND I.S. 398 GEOLOGICAL TESTING PROCEDURES, RESULTS and BACKGROUND EurGeol Dr John Kelly, PGeo, MIMMM, MIQ Engineers Ireland 5 th November 2013 SWELLING RISK BASICS Pyrite is a form of iron sulphide (FeS 2

More information

A Technique for Microscopical Soil Examinations

A Technique for Microscopical Soil Examinations A Technique for Microscopical Soil Examinations Skip Palenik Microtrace LLC Elgin, IL USA www.microtracescientific.com Edmond Locard Preliminary Separation Color (dry) Sieving Low Power Microscopy Seeds,

More information

Mercia Mudstone Formation, caprock to carbon capture and storage sites: petrophysical and petrological characteristics

Mercia Mudstone Formation, caprock to carbon capture and storage sites: petrophysical and petrological characteristics Mercia Mudstone Formation, caprock to carbon capture and storage sites: petrophysical and petrological characteristics 1: University of Liverpool, UK 2: University of Newcastle, UK 3: FEI, Australia 4:

More information

A COMPARATIVE STUDY OF SHALE PORE STRUCTURE ANALYSIS

A COMPARATIVE STUDY OF SHALE PORE STRUCTURE ANALYSIS SCA2017-092 1 of 9 A COMPARATIVE STUDY OF SHALE PORE STRUCTURE ANALYSIS R. Cicha-Szot, P. Budak, G. Leśniak, P. Such, Instytut Nafty i Gazu - Państwowy Instytut Badawczy, Kraków, Poland This paper was

More information

Supplementary Materials Detail Petrographic Description

Supplementary Materials Detail Petrographic Description Supplementary Materials Detail Petrographic Description Figure S1 shows the results of a thin section analysis of all samples from Ijen Crater. All samples had a porphyritic texture composed of plagioclase,

More information

Determination of Reservoir Properties from XRF Elemental Data in the Montney Formation

Determination of Reservoir Properties from XRF Elemental Data in the Montney Formation Determination of Reservoir Properties from XRF Elemental Data in the Montney Formation Justin Besplug, Ron Spencer and Tom Weedmark - XRF Solutions - www.xrfsolutions.ca Abstract Portable X-Ray Fluorescence

More information

Using HyspIRI preparatory data for rapid classification of hydrothermal alteration

Using HyspIRI preparatory data for rapid classification of hydrothermal alteration Using HyspIRI preparatory data for rapid classification of hydrothermal alteration Betsy Littlefield Wendy Calvin Geological Society of America Annual Meeting Vancouver, BC October 29, 2014 HyspIRI Hyperspectral

More information

Geothermal Application of Borehole Logging in New Zealand

Geothermal 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 information

Effect of Hydrothermal Alteration on Rock Properties in the Tauhara Geothermal Field, New Zealand

Effect of Hydrothermal Alteration on Rock Properties in the Tauhara Geothermal Field, New Zealand Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Effect of Hydrothermal Alteration on Rock Properties in the Tauhara Geothermal Field, New Zealand P. Mielke, A. Prieto,

More information

Quartz Cementation in Mudrocks: How Common Is It?

Quartz Cementation in Mudrocks: How Common Is It? Quartz Cementation in Mudrocks: How Common Is It? Kitty L. Milliken Barnett Shale SE/CL image Woodford Shale SE/CL image Cements are Pore-filling Precipitates Specific definition differs with research

More information

IODP Expedition 376: Brothers Arc Flux. Site U1527 Summary. Background and Objectives

IODP Expedition 376: Brothers Arc Flux. Site U1527 Summary. Background and Objectives IODP Expedition 376: Brothers Arc Flux Site U1527 Summary Background and Objectives Site U1527 (proposed Site NWC-1A) is located on the rim of the northwest caldera wall of Brothers volcano in a water

More information

MINERAL DISTRIBUTION IN RESERVOIR ROCKS AND ITS IMPACT ON ENHANCED OIL RECOVERY

MINERAL DISTRIBUTION IN RESERVOIR ROCKS AND ITS IMPACT ON ENHANCED OIL RECOVERY SCA2011-57 1/6 MINERAL DISTRIBUTION IN RESERVOIR ROCKS AND ITS IMPACT ON ENHANCED OIL RECOVERY James J. Howard and Gary L. Lovell ConocoPhillips This paper was prepared for presentation at the International

More information

Subsidence: an Update on New Zealand Geothermal Deformation Observations and Mechanisms

Subsidence: an Update on New Zealand Geothermal Deformation Observations and Mechanisms Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Subsidence: an Update on New Zealand Geothermal Deformation Observations and Mechanisms Chris J. Bromley 1, Steve Currie

More information

PETROG. The best tool for digital petrography data collection, management, analysis, presentation and sharing

PETROG. The best tool for digital petrography data collection, management, analysis, presentation and sharing PETROG The best tool for digital petrography data collection, management, analysis, presentation and sharing Core material is retrieved at great expense. It is needed both because we want to see for ourselves

More information

I.S : What s in it and the role of the Geologist

I.S : What s in it and the role of the Geologist Institute of Geologists of Ireland Pyrite Course I.S. 398-1: What s in it and the role of the Geologist Michael L.J. Maher 4 December, 2013 Responsibilities of Geologist You re only the messenger! Classification

More information

Latasha Wyering 1, Marlene Villeneuve 1 and Irene Wallis 2.

Latasha Wyering 1, Marlene Villeneuve 1 and Irene Wallis 2. THE EFFECTS OF HYDROTHERMAL ALTERATION ON MECHANICAL ROCK PROPERTIES OF THE ANDESITE BRECCIA AND TAHORAKURI FORMATION FROM THE NGATAMARIKI GEOTHERMAL FIELD, NEW ZEALAND AND EMPIRICAL RELATIONS BETWEEN

More information

Research Article. Experimental Analysis of Laser Drilling Impacts on Rock Properties

Research Article. Experimental Analysis of Laser Drilling Impacts on Rock Properties International Journal of Petroleum & Geoscience Engineering (IJPGE) 1 (2): 106- ISSN 2289-4713 Academic Research Online Publisher Research Article Experimental Analysis of Laser Drilling Impacts on Rock

More information

Petrology and Alteration of Lari Mountain in Arinem Area, West Java, Indonesia

Petrology and Alteration of Lari Mountain in Arinem Area, West Java, Indonesia Petrology and Alteration of Lari Mountain in Arinem Area, West Java, Indonesia Fatoni Adyahya 1 *, Euis T. Yuningsih 1, Ildrem Syafrie 1, H. Matsueda 2, A. Hardiyono 1 1 Faculty of Geology, University

More information

Liquefaction potential of Rotorua soils

Liquefaction potential of Rotorua soils Pearse-Danker, E. (2013) Liquefaction potential of Rotorua soils Proc. 19 th NZGS Geotechnical Symposium. Ed. CY Chin, Queenstown Liquefaction potential of Rotorua soils E Pearse-Danker Coffey Geotechnics

More information

Strength, creep and frictional properties of gas shale reservoir rocks

Strength, creep and frictional properties of gas shale reservoir rocks ARMA 1-463 Strength, creep and frictional properties of gas shale reservoir rocks Sone, H. and Zoback, M. D. Stanford University, Stanford, CA, USA Copyright 21 ARMA, American Rock Mechanics Association

More information

Clay minerals : paleo-conditions and dynamic evolution of hydrothermal systems. P. Patrier Mas

Clay minerals : paleo-conditions and dynamic evolution of hydrothermal systems. P. Patrier Mas Clay minerals : paleo-conditions and dynamic evolution of hydrothermal systems examples of volcanic contexts related to subduction zones P. Patrier Mas (D. Beaufort, D. Guisseau, A. Mas, P. Papapanagiotou...)

More information

CO 2 -water-rock reactivity at hydrothermal temperatures: The BigRig2 experiment

CO 2 -water-rock reactivity at hydrothermal temperatures: The BigRig2 experiment CO 2 -water-rock reactivity at hydrothermal temperatures: The BigRig2 experiment C.A. ROCHELLE 1 *, K. BATEMAN 1, A. LACINSKA 1, D. WAGNER 1, J. LIONS 2 AND I. GAUS 2 1 British Geological Survey, Keyworth,

More information

Comparison of Coupled One-Dimensional Subsidence Models

Comparison of Coupled One-Dimensional Subsidence Models Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Comparison of Coupled One-Dimensional Subsidence Models Wesley Koros 1, John O Sullivan 1, Justin Pogacnik 1, Mike O Sullivan

More information

ROCK PHYSICS DIAGNOSTICS OF NORTH SEA SANDS: LINK BETWEEN MICROSTRUCTURE AND SEISMIC PROPERTIES ABSTRACT

ROCK PHYSICS DIAGNOSTICS OF NORTH SEA SANDS: LINK BETWEEN MICROSTRUCTURE AND SEISMIC PROPERTIES ABSTRACT ROCK PHYSICS DIAGNOSTICS OF NORTH SEA SANDS: LINK BETWEEN MICROSTRUCTURE AND SEISMIC PROPERTIES PER AVSETH, JACK DVORKIN, AND GARY MAVKO Department of Geophysics, Stanford University, CA 94305-2215, USA

More information

SAMREC 2009 Table 1, Section 5.5 Treatment / Processing

SAMREC 2009 Table 1, Section 5.5 Treatment / Processing Volume 58 ~ Number TWO ~ JUNE 2015 SAMREC 2009 Table 1, Section 5.5 Treatment / Processing ASSESSMENT CRITERION: T 5.5 Treatment / Processing EXPLORATION RESULTS (A) (i) Describe any obvious processing

More information

Waterview Connection Tunnels

Waterview Connection Tunnels Stuart Cartwright Waterview Connection Tunnels Engineering Geology Assessment of East Coast Bays Formation from Investigation through to Construction S. Cartwright, D. Koumoutsakos, B. Hill, and C. Morrison

More information

HIGH TEMPERATURE HYDROTHERMAL ALTERATION IN ACTIVE GEOTHERMAL SYSTEMS A CASE STUDY OF OLKARIA DOMES

HIGH TEMPERATURE HYDROTHERMAL ALTERATION IN ACTIVE GEOTHERMAL SYSTEMS A CASE STUDY OF OLKARIA DOMES Proceedings, 6 th African Rift Geothermal Conference Addis Ababa, Ethiopia, 2 nd 4 th November 2016 HIGH TEMPERATURE HYDROTHERMAL ALTERATION IN ACTIVE GEOTHERMAL SYSTEMS A CASE STUDY OF OLKARIA DOMES James

More information

Origin of Water in New Zealand Perlites

Origin of Water in New Zealand Perlites Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Origin of Water in New Zealand Perlites Jim Lawless 1 and Phil White 2 1: Lawless Geo-Consulting: Jlawless@clear.net.nz,

More information

Geotechnical modelling based on geophysical logging data

Geotechnical modelling based on geophysical logging data University of Wollongong Research Online Coal Operators' Conference Faculty of Engineering and Information Sciences 2013 Geotechnical modelling based on geophysical logging data Peter Hatherly Coalbed

More information

Petrographic Investigation of Two Float Samples from the Goldstake Property, Northern Ontario. Prepared for: Mr. Robert Dillman

Petrographic Investigation of Two Float Samples from the Goldstake Property, Northern Ontario. Prepared for: Mr. Robert Dillman Petrographic Investigation of Two Float Samples from the Goldstake Property, Northern Ontario Prepared for: Mr. Robert Dillman by Jim Renaud Renaud Geological Consulting Ltd. 21272 Denfield Road London,

More information

Julia V.Frolova, Irina P. Gvozdeva and Nikita P. Kuznetsov

Julia V.Frolova, Irina P. Gvozdeva and Nikita P. Kuznetsov Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Effects of Hydrothermal Alterations on Physical and Mechanical Properties of Rocks in the Geysers Valley (Kamchatka Peninsula)

More information

Seismicity and Subsidence: Examples of Observed Geothermal Deformation Synergies from New Zealand

Seismicity and Subsidence: Examples of Observed Geothermal Deformation Synergies from New Zealand PROCEEDINGS, Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 24-26, 2014 SGP-TR-202 Seismicity and Subsidence: Examples of Observed Geothermal

More information

A Regional Diagenetic and Petrophysical Model for the Montney Formation, Western Canada Sedimentary Basin*

A Regional Diagenetic and Petrophysical Model for the Montney Formation, Western Canada Sedimentary Basin* A Regional Diagenetic and Petrophysical Model for the Montney Formation, Western Canada Sedimentary Basin* Noga Vaisblat 1, Nicholas B. Harris 1, Vincent Crombez 2, Tristan Euzen 3, Marta Gasparrini 2,

More information

Calc-alkaline Volcanic Rocks. Calc-alkali Volcanics. Fabric. Petrography. Compositional Classification. Petrography. Processes.

Calc-alkaline Volcanic Rocks. Calc-alkali Volcanics. Fabric. Petrography. Compositional Classification. Petrography. Processes. Calc-alkaline Volcanic Rocks Calc-alkali Volcanics Winter Chapters 16 & 17 Petrography Processes Field relations Volcanic arcs Petrogenesis Petrography Fabric Classification Alteration Fabric Aphanitic

More information

Exploration / Appraisal of Shales. Petrophysics Technical Manager Unconventional Resources

Exploration / Appraisal of Shales. Petrophysics Technical Manager Unconventional Resources Exploration / Appraisal of Shales Rick Lewis Petrophysics Technical Manager Unconventional Resources Organic Shale Factors Controlling Gas Reservoir Quality Conventional sandstone Mineral framework Gas

More information

HYDROTHERMALLY ALTERED AND FRACTURED GRANITE AS AN HDR RESERVOIR IN THE EPS-1 BOREHOLE, ALSACE, FRANCE

HYDROTHERMALLY ALTERED AND FRACTURED GRANITE AS AN HDR RESERVOIR IN THE EPS-1 BOREHOLE, ALSACE, FRANCE PKOCtLDINCS, Seventrvnth Work\hop on Geothermal Kecervoir Engineering Stanlord Univimity. Stanford. California. lanuary 29-3 I. 1992 SGF'IX- 111 HYDROTHERMALLY ALTERED AND FRACTURED GRANITE AS AN HDR RESERVOIR

More information

Borehole Geology and Alteration Mineralogy of Well He-52, Hellisheidi Geothermal Field, SW-Iceland

Borehole Geology and Alteration Mineralogy of Well He-52, Hellisheidi Geothermal Field, SW-Iceland Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Borehole Geology and Alteration Mineralogy of Well He-52, Hellisheidi Geothermal Field, SW-Iceland Moneer Fathel A. Alnethary

More information

Paragenesis of gold-sulphide mineralisation Wyoming One and Caloma Two Tomingley Gold Project

Paragenesis of gold-sulphide mineralisation Wyoming One and Caloma Two Tomingley Gold Project Paragenesis of gold-sulphide mineralisation Wyoming One and Caloma Two Tomingley Gold Project Macquarie Arc Conference / AIG Honours Bursary Alexander Cherry Supervisors: A/Prof. David Cohen Dr. Ian Graham

More information

Fault Rocks. EARS5136 slide 1

Fault Rocks. EARS5136 slide 1 Fault Rocks EARS5136 slide 1 Fault rocks Fault rock types Examples of deformation features in cores Microstructures Porosity and permeability Lithological and lithification control EARS5136 slide 2 Deformation

More information

HYDROTHERMAL QUARTZ MICROTEXTURES AND DEPOSITIONAL PROCESSES REVEALED BY SEM-CL IMAGING

HYDROTHERMAL QUARTZ MICROTEXTURES AND DEPOSITIONAL PROCESSES REVEALED BY SEM-CL IMAGING Proceedings 24* NZ GeothermalWorkshop 2002 HYDROTHERMAL QUARTZ MICROTEXTURES AND DEPOSITIONAL PROCESSES REVEALED BY SEM-CL IMAGING G. BIGNALL, K. SEKINE TSUCHIYA Department of Geoscience and Technology,

More information

GSA Data Repository: Three styles of diamond resorption in a single kimberlite

GSA Data Repository: Three styles of diamond resorption in a single kimberlite GSA Data Repository 2017286 Fedortchouk et al., 2017, Three styles of diamond resorption in a single kimberlite: Effects of volcanic degassing and assimilation: Geology, doi:10.1130/g39066.1. 1 2 3 4 5

More information

AGE AND MINERALOGY OF THE STEAMBOAT SPRINGS SILICA SINTER DEPOSIT, NEVADA, A PRELIMINARY REPORT ON CORE SNLG 87-29

AGE AND MINERALOGY OF THE STEAMBOAT SPRINGS SILICA SINTER DEPOSIT, NEVADA, A PRELIMINARY REPORT ON CORE SNLG 87-29 Proceedings NZ Geothermal Workshop 2003 AGE AND MINERALOGY OF THE STEAMBOAT SPRINGS SILICA SINTER DEPOSIT, NEVADA, A PRELIMINARY REPORT ON CORE SNLG 87-29 1 B. Y. LYNNE, J. MOORE, P.R.L. BROWNE K. A. CAMPBELL

More information

COMPLEMENTARY METHODS FOR CHARACTERISING SLICK ROCK AEOLIAN SANDSTONE

COMPLEMENTARY METHODS FOR CHARACTERISING SLICK ROCK AEOLIAN SANDSTONE COMPLEMENTARY METHODS FOR CHARACTERISING SLICK ROCK AEOLIAN SANDSTONE S. Baraka-Lokmane, I. Main, S. Elphick, B. Ngwenya Department of Geology & Geophysics, University of Edinburgh, UK INTRODUCTION The

More information

Regional geology map showing drill holes completed to date and hole RZDDH10 08 in progress, IP Chargeability anomalies hatched.

Regional geology map showing drill holes completed to date and hole RZDDH10 08 in progress, IP Chargeability anomalies hatched. Alteration Haloes Alteration facies in the Suarez-Misahuallí basin on the east side of the Rio Zarza gold project are complex, as they oerlap in time and space, are the result of weathering, diagenetic,

More information

Chapter 1 Introduction

Chapter 1 Introduction Chapter 1 Introduction 1.1 Statement of the Problem Engineering properties of geomaterials are very important for civil engineers because almost everything we build - tunnels, bridges, dams and others

More information

Fluid Inclusion and Mineral Alteration of the Rorah Kadal Vein, At Cibaliung Gold Mine, Western Java, Indonesia

Fluid Inclusion and Mineral Alteration of the Rorah Kadal Vein, At Cibaliung Gold Mine, Western Java, Indonesia Fluid Inclusion and Mineral Alteration of the Rorah Kadal Vein, At Cibaliung Gold Mine, Western Java, Indonesia Agus Didit HARYANTO 1,2,M.F. ROSANA 2, Koichiro WATANABE 1 and, Kotaro YONEZU 1 1 Department

More information

TRUST. Figure 1: Location of the shallow seismic wells, the injection well (H18A) and the monitoring well (H18B).

TRUST. Figure 1: Location of the shallow seismic wells, the injection well (H18A) and the monitoring well (H18B). TRUST Figure 1: Location of the shallow seismic wells, the injection well (H18A) and the monitoring well (H18B). Figure 2: Drilling of a shallow seismic well. TRUST Figure 3: the heat exchanger Figure

More information

Semester 2, petrologi [TGS7208] 2 SKS teori 1 SKS praktikum. by: hill. gendoet hartono

Semester 2, petrologi [TGS7208] 2 SKS teori 1 SKS praktikum. by: hill. gendoet hartono Semester 2, 2017-2018 petrologi [TGS7208] 2 SKS teori 1 SKS praktikum by: hill. gendoet hartono Siklus Batuan, Kontrak Kuliah, Kelulusan, & Praktikum Magma, Diferensiasi, Viskositas, Gas dan Komposisi

More information

Integrating Geomechanics and Reservoir Characterization Examples from Canadian Shale Plays

Integrating Geomechanics and Reservoir Characterization Examples from Canadian Shale Plays Integrating Geomechanics and Reservoir Characterization Examples from Canadian Shale Plays AAPG Geosciences Technology Workshops Geomechanics and Reservoir Characterization of Shale and Carbonates July

More information

Effect of chemical composition to large scale CO 2 Injection in Morrow Sandstone, Farnsworth Hydrocarbon Field, Texas, USA

Effect of chemical composition to large scale CO 2 Injection in Morrow Sandstone, Farnsworth Hydrocarbon Field, Texas, USA Effect of chemical composition to large scale CO 2 Injection in Morrow Sandstone, Farnsworth Hydrocarbon Field, Texas, USA Bulbul Ahmmed Martin Appold Department of Geological Sciences University of Missouri-Columbia

More information

Geological Evaluation of the Waringin Formation as the host of a Vapor-Dominated Geothermal Reservoir at the Wayang Windu Geothermal Field

Geological Evaluation of the Waringin Formation as the host of a Vapor-Dominated Geothermal Reservoir at the Wayang Windu Geothermal Field Geological Evaluation of the Waringin Formation as the host of a Vapor-Dominated Geothermal Reservoir at the Wayang Windu Geothermal Field Yuris Ramadhan 1, Lukman Sutrisno 1, Ahmad Tasrif 1, Ian Bogie

More information

Hydrothermal Alteration of SMN-X,Sumani Geothermal Area, West Sumatra, Indonesia

Hydrothermal Alteration of SMN-X,Sumani Geothermal Area, West Sumatra, Indonesia Hydrothermal Alteration of SMN-X,Sumani Geothermal Area, West Sumatra, Indonesia Muhammad Ghassan Jazmi Shalihin 1, Euis Tintin Yuningsih 1, Aton Patonah 1, IldremSyafrie 1 Yuano Rezky 2 1 Faculty of Geology,

More information

2. REPLACEMENT OF PRIMARY PLAGIOCLASE BY SECONDARY K-FELDSPAR AND MYRMEKITE

2. REPLACEMENT OF PRIMARY PLAGIOCLASE BY SECONDARY K-FELDSPAR AND MYRMEKITE 1 ISSN 1526-5757 2. REPLACEMENT OF PRIMARY PLAGIOCLASE BY SECONDARY K-FELDSPAR AND MYRMEKITE Lorence G. Collins email: lorencec@sysmatrix.net November 21, 1996; revised February 17, 1997 The following

More information

Hydrothermal alteration footprints for epithermal deposits, Hauraki Goldfield, New Zealand

Hydrothermal alteration footprints for epithermal deposits, Hauraki Goldfield, New Zealand Hydrothermal alteration footprints for epithermal deposits, Hauraki Goldfield, New Zealand Mark P. Simpson Hauraki Goldfield Low / intermediate sulfidation epithermal ~12.3 Moz Au ~54.9 Moz Ag Andesite

More information

Report on samples from the Great Basin Science Sample and Records Library

Report on samples from the Great Basin Science Sample and Records Library Jonathan G. Price, Ph.D. State Geologist and Director Nevada Bureau of Mines and Geology Office telephone: 775-784-6691 extension 5 1664 North Virginia Street Home telephone: 775-329-8011 University of

More information

HYDROTHERMAL ALTERATION IN THE SUNAGOHARA FORMATION, OKUAIZU GEOTHERMAL SYSTEM, JAPAN

HYDROTHERMAL ALTERATION IN THE SUNAGOHARA FORMATION, OKUAIZU GEOTHERMAL SYSTEM, JAPAN HYDROTHERMAL ALTERATION IN THE SUNAGOHARA FORMATION, OKUAIZU GEOTHERMAL SYSTEM, JAPAN Yoji Seki Geological Survey of Japan, Higashi 1-1-3, Tsukuba, Ibaraki, 305-8567 Japan Key Words: Okuaizu geothermal

More information

PORE CHARACTERIZATION OF RESERVOIR ROCKS BY INTEGRATING SCAL AND PETROGRAPHY

PORE CHARACTERIZATION OF RESERVOIR ROCKS BY INTEGRATING SCAL AND PETROGRAPHY PORE CHARACTERIZATION OF RESERVOIR ROCKS BY INTEGRATING SCAL AND PETROGRAPHY Xiangmin Zhang and Alert Heing PanTerra Geoconsultants B. V. (x.zhang@panterra.nl) This paper was prepared for presentation

More information

Factors cause Metamorphism:

Factors cause Metamorphism: Metamorphic Rocks: A rock whose original mineralogy, texture and/or composition has changed due to pressure, temperature and/or fluids. It can be formed from igneous, sedimentary, or previously metamorphosed

More information

Linking the Chemical and Physical Effects of CO 2 Injection to Geophysical Parameters

Linking the Chemical and Physical Effects of CO 2 Injection to Geophysical Parameters Linking the Chemical and Physical Effects of CO 2 Injection to Geophysical Parameters Investigators: Stanford University: Gary Mavko, Professor (Research), Geophysics; Sally Benson, Professor (Research)

More information

The effect of CO 2 -fluid-rock interactions on the porosity and permeability of calcite-bearing sandstone

The effect of CO 2 -fluid-rock interactions on the porosity and permeability of calcite-bearing sandstone The effect of CO 2 -fluid-rock interactions on the porosity and permeability of calcite-bearing sandstone Benoit Lamy-Chappuis, Bruce Yardley, Carlos Grattoni School of Earth and Environment, University

More information

GeoFlex. Quantitative cuttings analysis and imaging service

GeoFlex. Quantitative cuttings analysis and imaging service GeoFlex Quantitative cuttings analysis and imaging service Bring the cuttings characterization lab to the field with the GeoFlex* quantitative cuttings analysis and imaging service from Geoservices, a

More information

URANIUM EXPLORATION COMPANY

URANIUM EXPLORATION COMPANY URANIUM EXPLORATION COMPANY EXPLORATION FOR HIGH-GRADE URANIUM DEPOSITS IN SANDSTONE BASINS GETTING TO DISCOVERY QUICKER AND MORE COST EFFECTIVELY USING APPLIED RESEARCH SUCCESSFUL EXPLORATION THROUGH

More information

BIBLIOGRAPHIC REFERENCE

BIBLIOGRAPHIC REFERENCE BIBLIOGRAPHIC REFERENCE Chambefort, I; Bignall, G. 2013. Preliminary stable isotope study on the Lahendong geothermal system, Indonesia, GNS Science Report 2013/14. 9p. I. Chambefort, GNS Science, Wairakei

More information

Rock Physics Modeling in Montney Tight Gas Play

Rock Physics Modeling in Montney Tight Gas Play Rock Physics Modeling in Montney Tight Gas Play Ayato Kato 1, Kunio Akihisa 1, Carl Wang 2 and Reona Masui 3 1 JOGMEC-TRC, Chiba, Japan, kato-ayato@jogmec.go.jp 2 Encana, Calgary, Alberta 3 Mitsubishi

More information

Project Document. BASE - Basement fracturing and weathering on- and offshore Norway Genesis, age, and landscape development

Project Document. BASE - Basement fracturing and weathering on- and offshore Norway Genesis, age, and landscape development Project Document BASE - Basement fracturing and weathering on- and offshore Norway Genesis, age, and landscape development Partners: Geological Survey of Norway (NGU), SINTEF Petroleum Research (SINTEF)

More information

Characterizing Seal Bypass Systems at the Rock Springs Uplift, Southwest Wyoming, Using Seismic Attribute Analysis*

Characterizing Seal Bypass Systems at the Rock Springs Uplift, Southwest Wyoming, Using Seismic Attribute Analysis* Characterizing Seal Bypass Systems at the Rock Springs Uplift, Southwest Wyoming, Using Seismic Attribute Analysis* Yuri Ganshin 1 and Fred McLaughlin 1 Search and Discovery Article #80483 (2015)** Posted

More information

Project: ITHACA-TOMPKINS REGIONAL AIRPORT EXPANSION Project Location: ITHACA, NY Project Number: 218-34 Key to Soil Symbols and Terms TERMS DESCRIBING CONSISTENCY OR CONDITION COARSE-GRAINED SOILS (major

More information

Geogenic versus Anthropogenic Metals and Metalloids

Geogenic versus Anthropogenic Metals and Metalloids Geogenic versus Anthropogenic Metals and Metalloids Geochemical methods for evaluating whether metals and metalloids are from geogenic versus anthropogenic sources 1 Definitions Geogenic from natural geological

More information

DEVELOPMENT OF XRD IN EL SALVADOR

DEVELOPMENT OF XRD IN EL SALVADOR PACIFIC OCEAN Copyright JCPDS - International Centre for Diffraction Data 2005, Advances in X-ray Analysis, Volume 48. 150 ABSTRACT DEVELOPMENT OF XRD IN EL SALVADOR Elizabeth de Henríquez LaGeo S.A. de

More information

2003 GCSSEPM Foundation Ed Picou Fellowship Grant for Graduate Studies in the Earth Sciences Recipient

2003 GCSSEPM Foundation Ed Picou Fellowship Grant for Graduate Studies in the Earth Sciences Recipient 2003 GCSSEPM Foundation Ed Picou Fellowship Grant for Graduate Studies in the Earth Sciences Recipient Tarek A. El Shayeb University of Texas at Austin Integrated reservoir characterization and 3-D diagenetic

More information

Hydrothermal Alteration: Separating Fact from Hyperbole

Hydrothermal Alteration: Separating Fact from Hyperbole Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Hydrothermal Alteration: Separating Fact from Hyperbole Sarah D. Milicich 1, Isabelle Chambefort 2 and Greg Bignall 2 1

More information

THE APPLICATION OF CHLORITE GEOTHERMOMETRY TO HYDROTHERMALLY ALTERED ROTOKAWA ANDESITE, ROTOKAWA GEOTHERMAL FIELD

THE APPLICATION OF CHLORITE GEOTHERMOMETRY TO HYDROTHERMALLY ALTERED ROTOKAWA ANDESITE, ROTOKAWA GEOTHERMAL FIELD THE APPLICATION OF CHLORITE GEOTHERMOMETRY TO HYDROTHERMALLY ALTERED ROTOKAWA ANDESITE, ROTOKAWA GEOTHERMAL FIELD Andrew Rae 1, Jeremy O Brien 2, Ernesto Ramirez 1, Greg Bignall 1 1 GNS Science, Wairakei

More information

16 Figure J. A fresh sample of Monzonite Porphyry is depicted including biotite hornblende and plagioclase phenocrysts, biotite is altering to chlorite and plagioclase is altering to clay. (magnification

More information

Figure 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 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 information

Soil Mechanics Prof. B.V.S. Viswanadham Department of Civil Engineering Indian Institute of Technology, Bombay Lecture 3

Soil Mechanics Prof. B.V.S. Viswanadham Department of Civil Engineering Indian Institute of Technology, Bombay Lecture 3 Soil Mechanics Prof. B.V.S. Viswanadham Department of Civil Engineering Indian Institute of Technology, Bombay Lecture 3 In the previous lecture we have studied about definitions of volumetric ratios and

More information

Mineralogy of Mars: Using our Experiences on Earth to Understand Processes on Mars. Liz Rampe (NASA-JSC) 8 July 2014

Mineralogy of Mars: Using our Experiences on Earth to Understand Processes on Mars. Liz Rampe (NASA-JSC) 8 July 2014 Mineralogy of Mars: Using our Experiences on Earth to Understand Processes on Mars Liz Rampe (NASA-JSC) 8 July 2014 elizabeth.b.rampe@nasa.gov Topics of this Talk Introduction to mineralogy What are minerals

More information

Chapter 8 Lecture. Earth: An Introduction to Physical Geology. Twelfth Edition. Metamorphism. Rocks. Tarbuck and Lutgens Pearson Education, Inc.

Chapter 8 Lecture. Earth: An Introduction to Physical Geology. Twelfth Edition. Metamorphism. Rocks. Tarbuck and Lutgens Pearson Education, Inc. Chapter 8 Lecture Earth: An Introduction to Physical Geology Twelfth Edition Metamorphism and dmetamorphic Rocks Tarbuck and Lutgens Chapter 8 Metamorphic Rocks What Is Metamorphism? Metamorphism means

More information

Reservoir Geomechanics and Faults

Reservoir Geomechanics and Faults Reservoir Geomechanics and Faults Dr David McNamara National University of Ireland, Galway david.d.mcnamara@nuigalway.ie @mcnamadd What is a Geological Structure? Geological structures include fractures

More information

P314 Anisotropic Elastic Modelling for Organic Shales

P314 Anisotropic Elastic Modelling for Organic Shales P314 Anisotropic Elastic Modelling for Organic Shales X. Wu* (British Geological Survey), M. Chapman (British Geological Survey), X.Y. Li (British Geological Survey) & H. Dai (British Geological Survey)

More information

Chapter 7 Metamorphism: A Process of Change

Chapter 7 Metamorphism: A Process of Change Chapter 7 Metamorphism: A Process of Change Metamorphism: A Process of Change Updated by: Rick Oches, Professor of Geology & Environmental Sciences Bentley University Waltham, Massachusetts Based on slides

More information

Earthquakes. Earthquakes are caused by a sudden release of energy

Earthquakes. 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 information

Weathering and Erosion

Weathering and Erosion Weathering and Erosion Weathering the disintegration and decomposition of material at the surface Erosion the transportation of weathered material by water, wind, or ice Weathering Two kinds of weathering

More information

MAGNETIC SUSCEPTIBILITY OF DRILL CUTTINGS IN A NORTH SEA OIL WELL: A RAPID, NON- DESTRUCTIVE MEANS OF CHARACTERIZING LITHOLOGY

MAGNETIC SUSCEPTIBILITY OF DRILL CUTTINGS IN A NORTH SEA OIL WELL: A RAPID, NON- DESTRUCTIVE MEANS OF CHARACTERIZING LITHOLOGY SCA2015-036 1/6 MAGNETIC SUSCEPTIBILITY OF DRILL CUTTINGS IN A NORTH SEA OIL WELL: A RAPID, NON- DESTRUCTIVE MEANS OF CHARACTERIZING LITHOLOGY 1 Arfan Ali, 2 David K. Potter and 3 Andrew Tugwell 1 Shell

More information