Challenges faced in drilling high-temperature geothermal wells in Iceland. Sverrir Thorhallsson Iceland GeoSurvey July 3, 2007
|
|
- Thomasina Gibson
- 5 years ago
- Views:
Transcription
1 Challenges faced in drilling high-temperature geothermal wells in Iceland Sverrir Thorhallsson Iceland GeoSurvey July 3, 2007 ENGINE Workshop 4 Reykjavík July 2-5,
2 ÍSOR geothermal map of Iceland ENGINE Workshop 4 Reykjavík July 2-5,
3 ÍSOR thermal gradient map The thermal gradient reflects the heat flow in the earths crust. Outside the geothermal areas the gradient is from 50 C/km in the oldest crust up to 170 C/km in the youngest. ENGINE Workshop 4 Reykjavík July 2-5,
4 Location of wells in Iceland: ENGINE Workshop 4 Reykjavík July 2-5,
5 Temp. profiles - def. of LT and HT Low temperature High temperature Ref.: Guðmundur Pálmason ENGINE Workshop 4 Reykjavík July 2-5,
6 Depth (m) 0 re ser vo ir p re ssur e a nd we ll in ter na l p re ssu re ( bu rst) Well Pressures 20 0 Watertable in stagnant w ell Max WHP measured in Iceland The figure shows pressure profiles that have been logged in HT geothermal wells in Iceland Boiling point depth curve Pressure due to accumulation of gas in shu t-in w ell Boiling starts Casing shoe p rod. ca sing m -Static (solid lines): well closed Good inflow p erfo rmance H igh d P, dry stea m w ell -Dynamic (dotted lines): well flowing Boi ling point depth curve Svartsengi SG-7, flowi ng Svartsengi, reservoir pressure Nesjavelli r NJ -9, well closed Nesj av elli r NJ-9, before flowi ng Nesjavellir NJ -18, flowi ng Ne sj avellir NJ -18, before flowi ng K rafl a K G-12, flowi ng K rafl a K G-12, cl osed Inflow dp SÞ P ressure (bar-g) ENGINE Workshop 4 Reykjavík July 2-5,
7 Icelandic geothermal wells High temp. Low temp. ENGINE Workshop 4 Reykjavík July 2-5,
8 Output curves for wells in Iceland 13 3/8 9 5/8 ENGINE Workshop 4 Reykjavík July 2-5,
9 Drilling methods used in Iceland Most common Rotary Air hammer Odex Holte Pressure bal. ENGINE Workshop 4 Reykjavík July 2-5,
10 Underbalanced or balanced drilling Two methods used to lighten the water column by entering compressed air mixing it with the mud or water. Water flow similar as before but air is extra. ENGINE Workshop 4 Reykjavík July 2-5,
11 Drilling rigs in Iceland 2007 Óðinn JB 4000 m Geysir JB 4000 m Jötunn JB 3300 m Sleipnir JB 2400 m Trölli RFS new Saga JB 1600 m 1350 m Jötunn Trölli RFS 1100 m Ýmir JB 1000 m Langþr. RFS 600 m Glámur RFS 600 m Sleipnir Einráður RFS 500 m Hrímnir JB 300 m Alvarr Trítill RFS 300 m 120 m ENGINE Workshop 4 Reykjavík July 2-5,
12 HT wells were drilled to less than 250 m from at: Hveragerði Krýsuvík Hengill Námaskarð After the arrival of Gufubors (The Steam Rig) in 1958 HT deep drilling started. ENGINE Workshop 4 Reykjavík July 2-5,
13 Lengd holu (m) Depth of HT wells drilled Ár borað Samtals 144 háhitaholur lengri en 500 m One line represents each well Sverrir ENGINE Workshop 4 Reykjavík July 2-5,
14 180 production wells at hitaveitas Municipal district heating services tap heat from 180 wells with a cumulative flow of 6397 l/s corresponding to MWt. Average flow er well is thus = 35,5 l/s. Ave. power 8,7 MW t In addition there are 200 private wells. Ref: Þorgils Jónasson ENGINE Workshop 4 Reykjavík July 2-5,
15 HT Drilling 1. Developers/owners: HS, LV, OR 2. Drilling works: -Jarðboranir hf.: drilling, casing, cementing, fishing etc. - ÍSOR: geoscientific and logging services. - VGK-Hönnun: design and supervision. - Foreign service companies: for directional drilling and aerated drilling. - Competitive bidding. 3. Summer of drilling rigs are drilling HT wells at: -Hellisheiði (OR) -Reykjanes (HS) -Krafla (LV) -Þeistareykir (LV) ENGINE Workshop 4 Reykjavík July 2-5,
16 Geothermal Drilling Problems (USA) Stuck pipe Tw ist off Cementing Lost circulation Side tracking Fishing Sloughing hole Rig repair Casing 0 0,02 0,04 0,06 0,08 0,1 0,12 0,14 0,16 0,18 Relative Im pact (norm alized freq*days) Ref.: Pers. comm. J. Rawley (1990) ENGINE Workshop 4 Reykjavík July 2-5,
17 ENGINE Workshop 4 Reykjavík July 2-5,
18 Control lost KR-4 Heavy mud mixed and pumped into well. ( = 1.8 g/cm 3 ; eq. 450 m in well) Po fell from 38 bar to 0 bar. BOP opened minutes later the well starts to flow. Drill pipe blown out of the well. BOP s fail to close the well. Master valve can not be closed completely (3 cm missing). Well out of control. Decided to move the rig off the well. ENGINE Workshop 4 Reykjavík July 2-5,
19 Depth (m) Blowout at Krafla KR-4 ORKUSTOFNUN BS Krafla Well KG-4 Temperature ( C) TD: 2003 m Casg.: 640 m Temperature during "blow-out" Estimated formation temp ENGINE Workshop 4 Reykjavík July 2-5,
20 Pressure rating of wellhead ENGINE Workshop 4 Reykjavík July 2-5,
21 Krafla KR-4 Blow-out crater ENGINE Workshop 4 Reykjavík July 2-5,
22 Depth (m) Underground blow-out NJ ORKUSTOFNUN Borholumælingar BS NESJAVELLIR NJ-11 Temperature ( C) Temperature measured inside drill string. To quench l/s pumped down the well. Residual pressure WHP = bar Measured 17-18th of May '85 In 1900 m and 2200 m full deflection on the Amerada temperature gauge T>381 C Upflow of fluid hotter than 380 C from the bottom region (2190 m aquifer?) to the main feed zone at 1226 m, which also swallows the injection. ENGINE Workshop 4 Reykjavík July 2-5,
23 BOP stack Drilling for production casing. Drilling production interval. Master valve on well. ENGINE Workshop 4 Reykjavík July 2-5,
24 Well. Drilled 1949 Steam eruption 1999 Krýsuvík 1952 ENGINE Workshop 4 Reykjavík July 2-5,
25 Photo : GÓF Krýsuvík 1987 before Photo : GÓF Krýsuvík 1999 after ENGINE Workshop 4 Reykjavík July 2-5,
26 Krýsuvík steam eruption 1999 Rocks and mud thrown 300 m ENGINE Workshop 4 Reykjavík July 2-5,
27 Photo : GÓF Krýsuvík Steam eruption of 1999 Hole where flying rock came down Photo : GÓF ENGINE Workshop 4 Reykjavík July 2-5,
28 Bjarnaflag after producing lava ENGINE Workshop 4 Reykjavík July 2-5,
29 Casing collapse trapped water A casing collapse in 9 5/8" prod. cas. at 73.5 m depth in well SG-5. It was removed with a drop-chisel and the well used for another 5 yrs. ENGINE Workshop 4 Reykjavík July 2-5,
30 Detection by calliper and CCL Gap detected by a calliper log Bad casing connection (coupling) Normal casing coupling as shown by CCL ENGINE Workshop 4 Reykjavík July 2-5,
31 Leak through a cemented annulus Temporary gland to stop the leak Path of steam leak through cement ENGINE Workshop 4 Reykjavík July 2-5,
32 Leak Temporary repair of leak on casing 11 m Seal ENGINE Workshop 4 Reykjavík July 2-5,
33 Failed connection Above: Buckling of a threaded casing joint. Right: Excavation to replace the top 11 m of casing to the first coupling. ENGINE Workshop 4 Reykjavík July 2-5,
34 HT Wellheads Wellhead 12 x ANSI 900 Master valve Expansion spool Kill line Casing head ENGINE Workshop 4 Reykjavík July 2-5,
35 Casing corrosion Outside corrosion of casing near surface Kill line Rat hole Well with cellar removed 7 mm corrosion at top of cement ENGINE Workshop 4 Reykjavík July 2-5,
36 Wellhead evolution in Iceland ENGINE Workshop 4 Reykjavík July 2-5,
37 Min. cas. depth Assume boiling point depth curve (BPD). The reservoir pressure is shown as Water in formation, and also the Overburden pressure. Draw a near vertical line from well bottom representing the density profile for saturated steam ( Steam in well ). The minimum casing depth is where the steam pressure intersects the Overburden pressure. ENGINE Workshop 4 Reykjavík July 2-5,
38 Conclusions Lessons have been learned from past failures Still not completely resolved is: Integrity of the casing Cementing procedures and materials How to cope with a steam-cap induced by drawdown Problems of underground blow-outs Sealing of BOP s during prolonged HT exposure In spite of this most HT wells are completed successfully ENGINE Workshop 4 Reykjavík July 2-5,
ISOR Iceland GeoSurvey Geothermal exploration and development
ISOR Iceland GeoSurvey Geothermal exploration and development ISOR - Iceland GeoSurvey Owned by the Icelandic government. Provides specialist services to the Icelandic power industry, the Icelandic government
More informationSTUDY ON DEEP GEOTHERMAL DRILLING INTO A SUPERCRITICAL ZONE IN ICELAND
GEOTHERMAL TRAINING PROGRAMME Reports 2000 Orkustofnun, Grensásvegur 9, Number 7 IS-108 Reykjavík, Iceland STUDY ON DEEP GEOTHERMAL DRILLING INTO A SUPERCRITICAL ZONE IN ICELAND Dian Qian Gui Drilling
More informationA Brief Guide to Geothermal Wells
A Brief Guide to Geothermal Wells Key Features, Fundamental Differences Ralph Winmill Senior Drilling Engineer, Contact Energy 21 June 2011 WHO ARE CONTACT ENERGY? Publically-Listed New Zealand Energy
More informationGEOTHERMAL BOREHOLE INVESTIGATIONS DURING AND AFTER DRILLING
Presented at Workshop for Decision Makers on Geothermal Projects in Central America, organized by UNU-GTP and LaGeo in San Salvador, El Salvador, 26 November to 2 December 2006. GEOTHERMAL BOREHOLE INVESTIGATIONS
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 informationTEMPERATURE DISTRIBUTION AND CONCEPTUAL RESERVOIR MODEL FOR GEOTHERMAL FIELDS IN AND AROUND THE CITY OF REYKJAVÍK, ICELAND
PROCEEDINGS, Twenty-fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 24-26, 2000 SGP-TR-165 TEMPERATURE DISTRIBUTION AND CONCEPTUAL RESERVOIR MODEL
More informationDrilling Operations of the first Iceland Deep Drilling Well (IDDP)
Drilling Operations of the first Iceland Deep Drilling Well (IDDP) Sveinbjörn Hólmgeirsson Project Manager Landsvirkjun Power Ásgrímur Guðmundsson, Bjarni Pálsson, Kristinn Ingason, Hinrik Árni Bóasson,
More informationDrilling in depleted reservoirs
Classification: Internal Status: Draft Drilling in depleted reservoirs ESRA seminar, 5 th of March 2009 Line Hoff Nilsen, Leading adviser Well integrity drilling 2 Content Drilling in depleted reservoirs
More informationWell Construction and Cementing Practices in Shale and Salt Water Disposal Wells
Well Construction and Cementing Practices in Shale and Salt Water Disposal Wells 2017 Shale Network Workshop Roger Myers, President RRM Completions, LLC 1 Agenda Well Construction Importance and Examples
More informationPreparation for a New Power Plant in the Hengill Geothermal Area, Iceland
Proceedings World Geothermal Congress 2005 Antalya, Turkey, 24-29 April 2005 Preparation for a New Power Plant in the Hengill Geothermal Area, Iceland Einar Gunnlaugsson and Gestur Gíslason Reykjavik Energy,
More informationPART I Hot Dry Rock Geothermal Energy: History and Potential of the Newest and Largest Renewable Energy Resource
Contents PART I Hot Dry Rock Geothermal Energy: History and Potential of the Newest and Largest Renewable Energy Resource Chapter 1 Serendipity A Brief History of Events Leading to the Hot Dry Rock Geothermal
More informationIceland Deep Drilling Project (IDDP): Drilling Targets for Supercritical Fluid
Iceland Deep Drilling Project (IDDP): Drilling Targets for Supercritical Fluid Guðmundur Ómar Friðleifsson 1), Halldór Ármannsson 1), Knútur Árnason 1), Ingi Þ. Bjarnason 2) and Gestur Gíslason 3) 1) Orkustofnun,
More informationGeochemical monitoring of the response ofgeothermal reservoirs to production load examples from Krafla, Iceland
International Geothermal Conference, Reykjavík, Sept. 23 Session #7 Geochemical monitoring of the response ofgeothermal reservoirs to production load examples from Krafla, Iceland Stefán Arnórsson 1 and
More informationExploration Results in the Tendaho Geothermal Field, Ethiopia
Proceedings World Geothermal Congress 2005 Antalya, Turkey, 24-29 April 2005 Exploration Results in the Tendaho Geothermal Field, Ethiopia Yiheyis Amdeberhan Geological Survey of Ethiopia, P.O.Boxx 24370,
More informationSAGA REPORT No June 2016
Introduction IDDP-2 Kick-Off Meeting 23 June 2016 SAGA REPORT No. 10 24 June 2016 An IDDP-2 Kick-Off Meeting (KOM), a joint effort of the IDDP-Consortium and DEEPEGS, was held 23th June 2016. The meeting
More informationDRILLING IN MENENGAI FIELD SUCCESS AND CHALLENGES
Presented at Short Course VIII on Exploration for Geothermal Resources, organized by UNU-GTP, GDC and KenGen, at Lake Bogoria and Lake Naivasha, Kenya, Oct. 31 Nov. 22, 2013. GEOTHERMAL TRAINING PROGRAMME
More informationPERFORMANCE EVALUATION OF DEEPENED WELLS 420DA AND 517DA IN THE LEYTE GEOTHERMAL PRODUCTION FIELD, PHILIPPINES
PROCEEDINGS, Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 11-13, 213 SGP-TR-198 PERFORMANCE EVALUATION OF DEEPENED WELLS 42DA AND 517DA
More informationWELL TEST ANALYSIS AND TEMPERATURE AND PRESSURE MONITORING OF KRAFLA AND NESJAVELLIR HIGH-TEMPERATURE GEOTHERMAL FIELDS, ICELAND
Orkustofnun, Grensasvegur 9, Reports 2014 IS-108 Reykjavik, Iceland Number 25 WELL TEST ANALYSIS AND TEMPERATURE AND PRESSURE MONITORING OF KRAFLA AND NESJAVELLIR HIGH-TEMPERATURE GEOTHERMAL FIELDS, ICELAND
More informationKeywords: Elevation, gravity, geothermal ABSTRACT
ELEVATION AND GRAVITY CHANGES AT GEOTHEMAL FIELDS ON THE REYKJANES PENINSULA, SW ICELAND Hjalmar Eysteinsson Orkustofnun, Grensasvegi 9, 108 Reykjavik, Iceland Keywords: Elevation, gravity, geothermal
More informationUniversity of Hawaii at Manoa. :'</\;~: 7 PI: 52. Hawaii Natural Energy Institute Holmes Hall Dole Street. Honolulu.
.r,., I.. ~.....!.. II '-_...J University of Hawaii at Manoa. :'
More informationSustainable Energy Science and Engineering Center GEOTHERMAL ENERGY. Sustainable Energy Sources. Source:
Sustainable Energy Sources GEOTHERMAL ENERGY Earth s Temperature Profile GEOTHERMAL ENERGY Plate Tectonics Earth's crust is broken into huge plates that move apart or push together at about the rate our
More informationHEAT TRANSFER IN A LOW ENTHALPY GEOTHERMAL WELL
HEAT TRANSFER IN A LOW ENTHALPY GEOTHERMAL WELL Marcel Rosca University of Oradea, Armata Romana 5, RO-37 Oradea, Romania Key Words: low enthalpy, numerical modeling, wellbore heat transfer, Oradea reservoir,
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 informationRotary Drilling Rotary Drilling Bits
GE 343 SUBSURFACE EXPLORATION CH 8 Rock Drilling, Testing, and Sampling Text Ch. 7. Dr. Norbert H. Maerz Missouri University of Science and Technology (573) 341-6714 norbert@mst.edu Instructional Objectives
More informationCERD GEOTHERMAL EXPLORATIONS AND RESULTS IN THE REPUBLIC OF DJIBOUTI. Short Course Naivasha, Kenya, November 2006
GEOTHERMAL EXPLORATIONS AND RESULTS IN THE REPUBLIC OF DJIBOUTI Short Course Naivasha, Kenya, 11-22 November 2006 JALLUDIN Mohamed Djibouti, CERD PRESENTATION PLAN General geological and hydrothermal activity
More informationRisk Management and Contingency Planning for the First Icelandic Deep Drilling Project Well in Krafla, Iceland
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Risk Management and Contingency Planning for the First Icelandic Deep Drilling Project Well in Krafla, Iceland Sebastian Homuth
More informationInstructional Objectives
GE 343 SUBSURFACE EXPLORATION CH 8 Rock Drilling, Testing, and Sampling Text Ch. 7. Dr. Norbert H. Maerz Missouri University of Science and Technology (573) 341-6714 norbert@mst.edu Instructional Objectives
More informationDrilling a geothermal well into a deep sedimentary geothermal reservoir conclusions from case study Gross Schoenebeck
Drilling a geothermal well into a deep sedimentary geothermal reservoir conclusions from case study Gross Schoenebeck Wulf Brandt & Geothermics Group GeoForschungsZentrum Potsdam In situ Geothermal Laboratory
More informationREPORT OF WORKSHOP No. 2 OF THE ICELAND DEEP DRILLING PROJECT, NESJAVELLIR, ICELAND, OCTOBER 13-15, 2002
REPORT OF WORKSHOP No. 2 OF THE ICELAND DEEP DRILLING PROJECT, NESJAVELLIR, ICELAND, OCTOBER 13-15, 2002 EXECUTIVE SUMMARY The Iceland Deep Drilling Project (IDDP) is an investigation of supercritical
More informationEnhanced Geothermal Systems The Technical Challenge
Enhanced Geothermal Systems The Technical Challenge Melanie Vonthethoff AGEG TIG 11 Drilling and Well Construction Presenter: Melanie Vonthethoff Types of Geothermal Australia vast resource potential 48
More informationCERD STATE OF KNOWLEDGE OF THE GEOTHERMAL PROVINCES OF REPUBLIC OF DJIBOUTI. ARGEO-C1 Conference Addis-Ababa, Ethiopia, November 2006
STATE OF KNOWLEDGE OF THE GEOTHERMAL PROVINCES OF REPUBLIC OF DJIBOUTI ARGEO-C1 Conference Addis-Ababa, Ethiopia, 24-29 November 2006 JALLUDIN Mohamed Djibouti, GEOTHERMAL EXPLORATIONS IN DJIBOUTI FIRST
More informationExploration Drilling Techniques
Exploration Techniques Why do we need natural resources? average increase in demand: 5 % per year How do we find new resources? How do we find new resources? Fun! Geological methods: In my view the greatest
More informationHISTORY OF DRILLING OPERATIONS IN THE KIRISHIMA GEOTHERMAL FIELD
HISTORY OF DRILLING OPERATIONS IN THE KIRISHIMA GEOTHERMAL FIELD Ken Soda Nittetsu Kagoshima Geothermal 1468-10 Manzen-area-aza-Ginyu, Makizono-cho, Aira-Gun, Kagoshima 899-66 Japan Key Words: geothermal
More information1 Water Beneath the Surface
CHAPTER 16 1 Water Beneath the Surface SECTION Groundwater KEY IDEAS As you read this section, keep these questions in mind: What are two properties of aquifers? How is the water table related to the land
More informationIntroduction to Oil&Gas Well Drilling
Introduction to Oil&Gas Well Drilling Drilling Introduction to Oil&Gas Well Drilling The term drilling indicates the whole complex of operations necessary to construct wells of circular section applying
More informationExperimenting with Deflagration for Stimulating Geothermal Wells
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Experimenting with Deflagration for Stimulating Geothermal Wells Omar Sigurdsson HS Orka hf. Brekkustigur 36, IS-260 Reykjanesbaer,
More information6. THE BOREHOLE ENVIRONMENT. 6.1 Introduction. 6.2 Overburden Pressures
6. THE BOREHOLE ENVIRONMENT 6.1 Introduction Wireline logging has a single clearly defined purpose: to give accurate and representative data on the physical properties of the rock formations and fluids
More informationGeothermEx, Inc. GEOTHERMAL RESERVOIR ASSESSMENT METHODOLOGY FOR THE SCIENTIFIC OBSERVATION HOLE PROGRAM, KILAUEA EAST RIFT ZONE, HAWAII TASK 1 REPORT
(415) 527 9876 CABLE ADDRESS- GEOTHERMEX TELEX 709152 STEAM UD FAX (415) 527-8164 Geotherm Ex, Inc. RICHMOND. CALIFORNIA 94804-5829 GEOTHERMAL RESERVOIR ASSESSMENT METHODOLOGY FOR THE SCIENTIFIC OBSERVATION
More informationHijiori HDR Reservoir Evaluation by Micro-Earthquake Observation
GRC Transactions, Vol. 38, 2014 Hijiori HDR Reservoir Evaluation by Micro-Earthquake Observation Hideshi Kaieda Central Research Institute of Electric Power Industry, Abiko, Chiba, Japan Keywords HDR,
More informationPRODUCTION CAPACITY ASSESSMENT: NUMERICAL MODELING OF GEOTHERMAL RESOURCES
PROCEEDINGS, Thirty-Third Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 28-3, 8 SGP-TR-185 PRODUCTION CAPACITY ASSESSMENT: NUMERICAL MODELING OF GEOTHERMAL
More informationThe Deepest Geothermal Well in Indonesia: A Success Story of Aerated Drilling Utilization
GRC Transactions, Vol. 40, 2016 The Deepest Geothermal Well in Indonesia: A Success Story of Aerated Drilling Utilization Apriyansah Toni, Raka Aditya Pratama, Imam M. Prasetyo, and Muhamad Bayu Saputra
More informationPETROLEUM 101. Mark Shrimpton Jacques Whitford
PETROLEUM 101 Mark Shrimpton Jacques Whitford PRESENTATION STRUCTURE The Offshore Petroleum Industry Petroleum Geology Petroleum Technology: Exploration agreements Geophysical exploration Drilling Development
More informationINFRARED AND SATELLITE IMAGES, AERIAL PHOTOGRAPHY
Presented at Short Course VI on Exploration for Geothermal Resources, organized by UNU-GTP, GDC and KenGen, at Lake Bogoria and Lake Naivasha, Kenya, Oct. 27 Nov. 18, 2011. GEOTHERMAL TRAINING PROGRAMME
More informationUsing Probabilistic Analysis with Finite Element Modeling of High Temperature Geothermal Well Casings
Using Probabilistic Analysis with Finite Element Modeling of High Temperature Geothermal Well Casings Gunnar Skúlason Kaldal, Magnús Þór Jónsson, Halldór Pálsson, and Sigrún Nanna Karlsdóttir Faculty of
More informationEVALUATION OF RECENT TEMPERATURE AND PRESSURE DATA FROM WELLS IN TENDAHO GEOTHERMAL FIELD, ETHIOPIA AND FROM WELL HG-1 AT HÁGÖNGUR, ICELAND
GEOTHERMAL TRAINING PROGRAMME Reports 24 Orkustofnun, Grensásvegur 9, Number 15 IS-18 Reykjavík, Iceland EVALUATION OF RECENT TEMPERATURE AND PRESSURE DATA FROM WELLS IN TENDAHO GEOTHERMAL FIELD, ETHIOPIA
More informationPressure Regimes in Deep Water Areas: Cost and Exploration Significance Richard Swarbrick and Colleagues Ikon GeoPressure, Durham, England
Pressure Regimes in Deep Water Areas: Cost and Exploration Significance Richard Swarbrick and Colleagues Ikon GeoPressure, Durham, England FINDING PETROLEUM 26 th September 2012 OUTLINE of PRESENTATION
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 informationLearning objectives: 1)To describe the principle behind tapping of Geothermal energy 2)To indicate limits and challenges with Geothermal energy usage
Geothermal Energy Learning objectives: 1)To describe the principle behind tapping of Geothermal energy 2)To indicate limits and challenges with Geothermal energy usage Core: Iron, Nickel, noble metals
More informationGEOHAZARDS IN GEOTHERMAL EXPLOITATION
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 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 for
More informationGeodynamics. Measuring stress and strain Lecture How is stress measured? Lecturer: David Whipp
Geodynamics Measuring stress and strain Lecture 4.2 - How is stress measured? Lecturer: David Whipp david.whipp@helsinki.fi Geodynamics www.helsinki.fi/yliopisto 1 Goals of this lecture Introduce several
More informationControlled Pressure Drilling Applications for Enhanced Geothermal Systems
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Controlled Pressure Drilling Applications for Enhanced Geothermal Systems Julmar Shaun S. Toralde and Steve Nas PT Wira Insani,
More informationThermasource,Nc. GEOTHERMAL CONSULTING SERVICES
Thermasource,Nc. GEOTHERMAL CONSULTING SERVICES TRUE GEOTHERMAL ENERGY COMPANY KMERZ WELL NO. KA2-1 GEOTHERMAL DRILLING PROGRAM COUNTY OF HAWAII Submitted to: Department of Land and Natural Resources Honolulu,
More informationGEOHAZARDS IN GEOTHERMAL 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 informationLESSONS LEARNED IN DRILLING DB-1 AND DB-2 BLUE MOUNTAIN, NEVADA
PROCEEDINGS, Thirtieth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31-February 2, 25 SGP-TR-176 LESSONS LEARNED IN DRILLING DB-1 AND DB-2 BLUE MOUNTAIN,
More informationSTATE OF KNOWLEDGE OF THE GEOTHERMAL PROVINCES OF REPUBLIC OF DJIBOUTI
STATE OF KNOWLEDGE OF THE GEOTHERMAL PROVINCES OF REPUBLIC OF DJIBOUTI UNU training KENGEN Naivasha, Kenya, November 2007 JALLUDIN Mohamed Djibouti, CERD GEOTHERMAL EXPLORATIONS IN DJIBOUTI FIRST PHASE
More informationGeology and Hydrothermal Alteration in the Reservoir of the Hellisheiði High Temperature System, SW-Iceland
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-9 April 2010 Geology and Hydrothermal Alteration in the Reservoir of the Hellisheiði High Temperature System, SW-Iceland Helga Margrét Helgadóttir,
More informationRecent updates from the world s hottest geothermal energy drilling
Recent updates from the world s hottest geothermal energy drilling Guðmundur Ómar Friðleifsson IDDP PI DEEPEGS Coordinator HS Orka Chief Geologist Forsíða með eigin ljósmynd Skref til innsetningar myndar:
More informationThe Reykjanes Seawater Geothermal System Its exploitation under regulatory constraints
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 The Reykjanes Seawater Geothermal System Its exploitation under regulatory constraints Omar Sigurdsson HS Orka hf. Brekkustigur
More informationApplicability of GEOFRAC to model a geothermal reservoir: a case study
PROCEEDINGS, Thirty-Ninth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 24-26, 2014 SGP-TR-202 Applicability of GEOFRAC to model a geothermal reservoir:
More informationTHE IDDP-2 DEEPEGS DEMONSTRATOR AT REYKJANES
THE IDDP-2 DEEPEGS DEMONSTRATOR AT REYKJANES Guðmundur Ómar Friðleifsson IDDP-PI and DEEPEGS Coordinator & co-authors: Albert Albertsson, Geir Þórólfsson, Ómar Sigurðsson, Robert A. Zierenberg, Wilfred
More informationIntroduction to Oil and Gas Production
Introduction to Oil and Gas Production Steven Marzuola ATA Energy Conference May 4-6, 2007 Houston Texas Introduction Dope, Joints, Tripping Strippers Casing, Tubing, Liner API - American Petroleum Institute
More informationTHE BASIS FOR WELL DESIGN AND DRILLING PROGRAMME FOR GEOTHERMAL EXPLORATION IN KINIGI, RWANDA
Orkustofnun, Grensasvegur 9, Reports 2016 IS-108 Reykjavik, Iceland Number 29 THE BASIS FOR WELL DESIGN AND DRILLING PROGRAMME FOR GEOTHERMAL EXPLORATION IN KINIGI, RWANDA Theoneste Nzayisenga Rwanda Energy
More informationINJECTION AND PRODUCTION WELL TESTING IN THE GEOTHERMAL FIELDS OF SOUTHERN HENGILL AND REYKJANES, SW-ICELAND AND THEISTAREYKIR, N-ICELAND
GEOTHERMAL TRAINING PROGRAMME Reports 2013 Orkustofnun, Grensasvegur 9, Number 31 IS-108 Reykjavik, Iceland INJECTION AND PRODUCTION WELL TESTING IN THE GEOTHERMAL FIELDS OF SOUTHERN HENGILL AND REYKJANES,
More informationExploration, Drilling & Production
Nontechnical Guide to PETMOLEUM Geology, Exploration, Drilling & Production Third Edition Norman J. Hyne, Ph.D. Contents Preface *i Introduction 1 The Nature of Gas and Oil 1 Petroleum 1 The Chemistry
More informationSlim hole drilling and testing strategies
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS Slim hole drilling and testing strategies To cite this article: Dennis L. Nielson et al 2017 IOP Conf. Ser.: Earth Environ. Sci.
More informationSPE DISTINGUISHED LECTURER SERIES is funded principally through a grant of the SPE FOUNDATION
SPE DISTINGUISHED LECTURER SERIES is funded principally through a grant of the SPE FOUNDATION The Society gratefully acknowledges those companies that support the program by allowing their professionals
More informationReykjavík. Hengill central volcano. 1. Geological map of SW-Iceland and location of Hengill central volcano and the Reykjavík capital.
PROCEEDINGS, Thirty-Seventh Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 30 - February 1, 2012 SGP-TR-194 PRELIMINARY STUDY OF DOWN-HOLE RESISTIVITY FROM
More informationExploring and Drilling for Oil and Gas. Prepared by Tom Sheeran
Exploring and Drilling for Oil and Gas What are Oil and Gas? Oil and Gas are substances found within the earth s crust. They are thought to come from decomposed plant and animal matter. Scientists believe
More informationStructural Geology tectonics, volcanology and geothermal activity. Kristján Saemundsson ÍSOR Iceland GeoSurvey
Structural Geology tectonics, volcanology and geothermal activity Kristján Saemundsson ÍSOR Iceland GeoSurvey Discussion will be limited to rift zone geothermal systems with sidelook on hot spot environment.
More informationColorado s Underground Injection Control Program: Prevention and Mitigation of Induced Seismicity
Colorado s Underground Injection Control Program: Prevention and Mitigation of Induced Seismicity Energy & Environment Symposium April 2015 Robert P. Koehler, PhD. UIC Lead OVERVIEW What is a UIC well?
More informationA deeper understanding
DEEP GEOTHERMAL DRILLING 17 Drilling activity at the Hellisheidi geothermal power plant in Iceland. Mechanical design and drilling consulting were undertaken by Mannvit A deeper understanding GeoDrilling
More information2 OVERVIEW OF SHALLOW BOREHOLE INVESTIGATIONS
2 OVERVIEW OF SHALLOW BOREHOLE INVESTIGATIONS Preparation for MSB-2 started in April 2002. Drilling and planned field work in both MSB-2 and 4 were carried out at the same time. After completion of the
More informationGEOTHERMAL SYSTEMS AND TECHNOLOGIES 3. GEOTHERMAL RESERVOIR ENGINEERING
1 GEOTHERMAL SYSTEMS AND TECHNOLOGIES 3. GEOTHERMAL RESERVOIR ENGINEERING 2 3. GEOTHERMAL RESERVOIR ENGINEERING 3.1. EXPLORATION OF GEOTHERMAL RESOURCES Explorationis a significant step in the process
More informationRIG HYDRAULICS. P 1 = Eρ 0.8 Q 1.8 (PV) 0.2. psi or bar. P 1 ρ. = pressure loss, psi or bar = Density, ppg or kg/l = flow rate, gpm, l/min
RIG HYDRAULICS This chapter covers the following items: Pressure losses Surface connection losses Pressure drop across the bit Optimization of bit hydraulics Surface pressure drop Hydraulic criteria Comparison
More informationHow to Interpret Mining Company Drill Reports & Announcements
How to Interpret Mining Company Drill Reports & Announcements A Simple Guide amscot Stockbroking Pty Ltd A division of State One Stockbroking Ltd (AFSL 247 100) Disclaimer: All information in this document
More informationGeology 101 Lab 7: Isostasy Laboratory
Name TA Name Geology 101 Lab 7: Isostasy Laboratory To what thickness can sediments accumulate on the earth s surface, and what controls this thickness? How deeply can the continents be eroded? These are
More informationModule 1 : Site Exploration and Geotechnical Investigation
Objectives In this section you will learn the following Displacement borings Wash boring Auger boring Rotary drilling Percussion drilling Continuous sampling Boring methods of exploration The boring methods
More informationCoring at Extreme Temperatures, Design and Operation of a Core barrel for the Iceland Deep Drilling Project (IDDP)
Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 Coring at Extreme Temperatures, Design and Operation of a Core barrel for the Iceland Deep Drilling Project (IDDP) Alister Skinner
More informationOil and Gas Production and Exploration, Part I
Oil and Gas Production and Exploration, Part I Presented by: Steven Marzuola American Translators Association 52 nd Annual Conference Boston, October 26, 2011 1 Introduction Dope, Joints, Tripping Internal
More informationTHE RESISTIVITY STRUCTURE OF HIGH-TEMPERATURE GEOTHERMAL SYSTEMS IN ICELAND
. THE RESISTIVITY STRUCTURE OF HIGH-TEMPERATURE GEOTHERMAL SYSTEMS IN ICELAND Knutur Arnason 1, Ragna Karlsdottir 1, Hjalmar Eysteinsson 1, Olafur G Flovenz 1 and Steinar Thor Gudlaugsson 1 1 Orkustofnun,
More informationRestoration from a Large Scale Steam Explosion at the Well Site of the Onikobe Geothermal Power Station
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Restoration from a Large Scale Steam Explosion at the Well Site of the Onikobe Geothermal Power Station Chitoshi Akasaka,
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 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 informationWELL TEST INTERPRETATION AND PRODUCTION PREDICTION FOR WELL SD-01 IN THE SKARDDALUR LOW-TEMPERATURE FIELD, SIGLUFJÖRDUR, N-ICELAND
GEOTHERMAL TRAINING PROGRAMME Reports 2011 Orkustofnun, Grensasvegur 9, Number 19 IS-108 Reykjavik, Iceland WELL TEST INTERPRETATION AND PRODUCTION PREDICTION FOR WELL SD-01 IN THE SKARDDALUR LOW-TEMPERATURE
More informationReinjection and Induced Seismicity in Geothermal Fields in Iceland
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Reinjection and Induced Seismicity in Geothermal Fields in Iceland Ólafur G. Flóvenz, Kristján Ágústsson, Egill Árni Guðnason
More informationSerie B2.1. Flanged ductile iron ball valve. made in. Application fields. Shut-off valves E U R O P E. 18
erie B. Flanged ductile iron ball valve BRanDOni made in E U R O P E Application fields WATER CONdITIONING GA EATING INdUTRY FIRE FIGTING www.brandoni.it erie B. eries B. valves are shut-off ball valves
More informationInnovaRig - an Instrument for a European Geothermal Drilling Program
InnovaRig - an Instrument for a European Geothermal Drilling Program Lothar Wohlgemuth, Bernhard Prevedel, and Ernst Huenges GeoForschungsZentrum Potsdam GeoForschungsZentrum Potsdam Member of the Helmholtz
More informationHot Creek Valley Oil Field
Hot Creek Valley Oil Field Discovery Well Eblana - 1 MAJOR OIL INTERNATIONAL LLC Brief on well sidetracking down to 13,000 ft Prepared by Soran Talabani and Karim Akrawi Field Location Eblana-1 (well status)
More informationINTERPRETATION OF INTERFERENCE EFFECTS IN THREE PRODUCTION WELLS IN THE KAWERAU GEOTHERMAL FIELD, NEW ZEALAND. Lynell Stevens and Kevin J Koorey
PROCEEDINGS, Twenty-First Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 22-24, 1996 SGP-TR-151 INTERPRETATION OF INTERFERENCE EFFECTS IN THREE PRODUCTION
More informationMulti-skill software for Planning, Following-Up and Post Analysis of wells.
Multi-skill software for Planning, Following-Up and Post Analysis of wells. Calculation and presentation of the Well Plan Recalculate and update the prognosis during drilling including geology information.
More informationGeochemical Modelling of Low-Temperature Geothermal Fields from Bihor County, Romania
Proceedings World Geothermal Congress 2015 Melbourne, Australia, 19-25 April 2015 Geochemical Modelling of Low-Temperature Geothermal Fields from Bihor County, Romania Oana Stǎnǎşel, Iulian Stǎnǎşel University
More informationCVR System. Critical Velocity Reduction A Combination of Dead Strings, Capillary Injection Foamer and Plunger Lift
CVR System Critical Velocity Reduction A Combination of Dead Strings, Capillary Injection Foamer and Plunger Lift Presented By: Scott Campbell - Weatherford - Denver, Colorado Petey Erwin Newfield Exploration
More informationE 094 E 103 E 143. Tank top mounting Connection up to G1 Nominal flow rate up to 135 l/min e
R e t u r n F i l t e rs E 094 E 103 E 143 Tank top mounting Connection up to G1 Nominal flow rate up to 135 l/min 20.30-5e D e s c r i p t i o n Application In the return line circuits of hydraulic systems.
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 informationPresented at ASEAN Geothermal Workshop Bandung, Indonesia 1 May 1984
Presented at ASEAN Geothermal Workshop Bandung, Indonesia 1 May 1984 DRILLING AND TESTING GEOTHERMAL WELLS IN AN ACTIVE VOLCANIC DOMAIN, PUNA GEOTHERMAL FIELD, HAW An, USA W.L. D'Olier, Vice President
More informationPetrophysical Data Acquisition Basics. Coring Operations Basics
Petrophysical Data Acquisition Basics Coring Operations Basics Learning Objectives By the end of this lesson, you will be able to: Understand why cores are justified and who needs core data Identify which
More informationRESISTIVITY OF ROCKS
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 information* New Energy and Industrial Technology Development
PROCEEDINGS, Eighteenth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 26-28, 1993 SGP-m-145 THE PRODUCTIVE PERFORMANCE PREDICTION OF SOME WELLS IN HACHIJOJIMA
More informationSOUTHEAST TEXAS CONTINUING EDUCATION HIGH TEMPERATURE WATER HEATING SYSTEMS
EXAM No. 151 HIGH TEMPERATURE WATER HEATING SYSTEMS 1. Due to pressure limitations on pipe and fittings, equipment, and accessories, what is the practical temperature limit of circulating water in district
More information