News

Ready to start soft stimulation in Mezőberény

Ready to start soft stimulation in Mezőberény

DESTRESS members visited Mezőberény last summer and realised that it would be a perfect place to implement one of the soft stimulation treatments for a sandstone formation aiming to solve injection problems at the site. The local authority of Mezőberény Város Önkormányzata, which is the operator and owner of the geothermal plant, agreed to join forces with DESTRESS. The cooperation agreement was signed at the end of July 2018 and everything is prepared to act at an operational level. In a first step, members of WP4 will design a chemical stimulation concept.

Anthropogenic or not? Investigating the magnitude 5.5 Pohang earthquake in South Korea

A recently published paper in Science, written with contributions from DESTRESS partners, explores the potential link between magnitude 5.5 (Mw) earthquake in South Korea and the nearby geothermal project. If proven to be anthropogenic, it would be the largest earthquake known to have been associated with the exploitation of deep geothermal energy.

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Sad news from Glasgow

Sad news from Glasgow

Paul Younger, one of the initiators of DESTRESS, passed away last week-end. He died after serious illness peacefully surrounded by his family. Paul will remain in the memory of all DESTRESS members, not only because he was the one who defined the acronym of our project. His death is a big loss and we will miss Paul at many fronts. Our thoughts are with his wife and family.

DESTRESS met for a fruitful exchange in Glasgow

From 3 to 6 April 2018, the DESTRESS community met for four days in Glasgow. The programme included the 3rd general assembly with the progress meeting and executive and advisory board sessions as well as the midterm conference. 50 project participants took part in the internal meetings and presented the status-quo, results and upcoming work for their tasks and work packages. Furthermore, the whole consortium discussed critical topics and challenges and exchanged ideas for future steps to be taken.

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In-situ stress estimation in geothermal reservoirs

The ability to estimate stresses in deep boreholes is limited because collecting data is challenging in these depths. Thus, it is desirable to combine various stress measurement methods and follow a set of steps to construct a reliable rock stress model. The new DESTRESS report presents best practices for estimating in-situ stress in geothermal reservoirs.

Geothermal reservoir characterization and well testing

Geothermal reservoir characterization and well testing

After drilling a geothermal well into a reservoir, one needs to characterize its properties and assess the well properties. This knowledge is essential for efficient and fast decisions, for example to configure soft stimulation treatments, as well as for the design of surface facilities. Read more in our latest best practice report.

Logging programme in Soultz-sous-Forêts

Logging programme in Soultz-sous-Forêts

In the framework of work package 4.3, which is dedicated to the realization of chemical injection tests into well GPK4 in Soultz-sous-Forêts, a logging programme has been designed to characterize the status of both the cased and the open-hole sections of the well, prior to any injection. The following measurements will be performed: casing integrity (diameter, thickness) and flow logs in the cased and open-hole sections (observation of potential leaks in the casing and main flow inlets/outlets in the open-hole). The operations, planned to start at the end of January, should help to properly design the future chemical injection.

“Geochemistry and geothermal fluids” workshop in Miskolc

The first joint cross topic workshop on “Geochemistry of geothermal fluids” took place from 26 to 27 of October 2017 at the University of Miskolc in Hungary. About 35 people from ten European countries attended the workshop. Most of them are involved in at least of one the seven EU Horizon 2020 projects that coordinated the workshop.

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Magnitude 5.4 earthquake in South Korea

Magnitude 5.4 earthquake in South Korea

On 15 November 2017 at 05.29 UTC (14.29 local time) an earthquake with a magnitude of 5.4 occurred near Pohang in South Korea. This earthquake is the second-largest on record in Korea after the magnitude 5.8 Gyeongju event, which occurred in 2016, 40 km from Pohang. It triggered numerous aftershocks in the following months.

There may be concerns regarding a connection between the recent earthquake and the nearby Pohang geothermal project due to the close proximity and shallow depth of the earthquake. Analysis is underway regarding the injection activities in the two deep boreholes (4.3 km and 4.2 km) at Pohang.

Following the three previous hydraulic stimulations at this site, the DESTRESS team, composed of international experts, conducted hydraulic stimulation (soft stimulation as we call it) in August 2017, followed by flowback of 100% of the injected water (see the DESTRESS newsletter). This treatment did not induce any seismic activity larger than magnitude 2.0. It was followed by additional injections, which ended on 18 September, two months before the recent Pohang earthquake. No larger seismic events were observed during this treatment, either.

Nonetheless, the DESTRESS team is willing to collaborate with Korean partners and authorities to investigate the possible link between the 15 November earthquake and the previous injection activities at Pohang.

Drilling in Westland (NL) started

Drilling in Westland (NL) started

On 6 November drilling started in Trias Westland. It will be the deepest ever performed drilling in the Netherlands. Based on a daily advance of 50 meters per day, the Buntsandstein reservoir should be reached around Christmas. Read more

Harmonic Pulse Testing as a Monitoring Tool for Enhanced Geothermal Systems

Harmonic pulse testing is a technology that has similar capabilities as regular well testing. It intends to determine hydraulic parameters such as transmissivity, wellbore storage, skin and storativity. In comparison to well testing, pulse testing has some important advantages: the deployment is simple, it can be performed during ongoing operations and it can be used as a monitoring tool. Read more on pulse testing in our best practice report.

How to drill and operate a well?

How to Drill and Operate a Well?

Drilling a well is more than just boring into the ground. A well designer must know before drilling what is expected from the wellbore in order to determine for example its hole size diameter or possible stabilization measures. Therefore, our fourth best practice report presents a guideline to successfully drilling and operation wells. Read the full report here.

Best Practice Report: The Importance of Geo- and Hydrochemistry

Best Practice Report: the Importance of Geo- and Hydrochemistry

To successfully run a geothermal plant, it is crucial to know how fluids, rock minerals and gases interact in the underground. A poor understanding of those processes can result in corrosion of plant, clogging of wells and reservoirs and may even cause environmental problems. Our new best practice report deals with the question how to design a geo- and hydrochemical sampling campaign for a geothermal programme. Read the full report here.

Best practices for risk assessment in geothermal projects

Best Practices for Risk Assessment in Geothermal Projects

The long timeline of a geothermal project with the drilling, construction and operation phase poses numerous risks such as legislation, accidents and public acceptance. Therefore, risks should already be assessed in the beginning of a project. Key to a reliable risk assessment are expert interviews or, wherever available, historical data. Our new best practice report deals in more detail with the topic risk assessment.

Joint Efforts to Strengthen Geothermal Energy

Geothermal heat is a promising source to enrich and significantly contribute to the renewable energy mix in a long-term perspective. To foster the use of geothermal energy in a secure, clean and efficient way, the European Commission (EC) supports twelve projects within the Horizon 2020 Programme (H2020) and pursues one project of the former 7th Framework Programme (FP7). This brings together almost 20 countries and numerous stakeholders, providing a wide range of knowledge and expertise to strengthen the use of geothermal energy.

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First Best Practice Report Available

An important achievement of DESTRESS is the compilation of best practice reports. New techniques, innovations, or crucial experiences gained within DESTRESS are made available to an interested audience. Several reports will be published at irregular intervals until the end of the project.

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Site Visit in Alsatian Geothermal plants for Citizens of the Canton Jura

On March 11th, a visit of the geothermal power plants of Soultz-sous-Forêts and Rittershoffen was organised by Geo-Energie Suisse SA (GES) and Électricité de Strasbourg Géothermie (ÉSG) for citizens of the Canton Jura, Switzerland, where GES is planning its Haute-Sorne project.

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Systematic Approach for Techno-Economic Evaluation Developed by WP2

Is soft stimulation worth its effort? Is it wise to use soft stimulation in geothermal exploration from an economical point of view? Which risk factors and uncertainties do we face while performing soft stimulation and how do they affect our project?

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Qualitative Analysis Shows Media Frames of Deep Geothermal Energy

Olivier Ejderyan (ETH Zurich) conducted a qualitative media analysis of 115 articles about deep geothermal energy (DGE) in three French-speaking Swiss newspapers within task 3.3 "Risk Governance".

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Successful Hydraulic Stimulation in Pohang

Currently there are two deep boreholes in Pohang: PX-1 at 4.2 km and PX-2 at 4.3 km. The first and second hydraulic stimulations have been carried out in January and February 2016 in PX-2 and in December 2016 in PX-1.

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Acceptance of Geothermal Energy in the Spotlight of Social Science Studies

The social context of geothermal energy projects matters as participants of the first DESTRESS Workshop on Social Sciences highlighted at the end of January in Strasbourg. A good example is the acceptability of geothermal energy production in the Alsace (France), which is rather high due to positive experiences with extensive oil drilling in the last decades.

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List of Topics for Future Monitoring Has Been Compiled

In the framework of the WP3.4, entitled to "Non-standard risk monitoring", teams from the Centre for Early Warning system (CEWS) at GFZ Potsdam and ESG met at the Soultz site on 12 December 2016. After ESG introduced the Soultz-sous-Forêts and Rittershoffen geothermal sites, GFZ presented an overview of their expertise in real-time monitoring capabilities, early warning systems for risk assessment and vulnerability studies.

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Status Quo of Demonstration Sites

To demonstrate the DESTRESS concept, six different sites with access to a reservoir by means of geothermal wells have been chosen. About 9 month after the start of the project, we present here the first status quo report on the demonstration sites.

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Publication "Hydrothermal characterization of wells GRT-1 and GRT-2 in Rittershoffen, France"

The wells GRT-1 and GRT-2 drilled in 2012, respectively in 2014, offer a unique opportunity to gather highquality datasets on a deep geothermal system in the Upper Rhine Graben at the transition between the Buntsandstein sandstone and the Palaeozoic granite basement.

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Geothermal Energy – A Community Effort

Stefan Wiemer and Michèle Marti, both Swiss Seismological Service / ETH Zurich, on DESTRESS at the SCCER-SoE-Blog.

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Top 10 List of Possible Risks for Soft Stimulation Compiled

One aim of DESTRESS is to bring together social and economic challenges related to soft stimulation. An initial step for this task is to investigate possible risks: even though soft stimulation aspires to reduce the environmental impact of a reservoir enhancement, not every risk can be excluded.

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First Efforts to Address Challenges in Klaipeda Geothermal Site (WP4)

In March and July 2016 geochemists, reservoir engineers and rock mechanic experts from GFZ Potsdam visited the site to sample fluids, filter residual and core pieces for analysis in the laboratory.

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Geothermal Energy for Starch Production – Rittershoffen on Track

On Tuesday, 7th June 2016, Ségolène Royal, the French Minister of the Environment, Energy and Marine Affairs, has inaugurated the brand new Rittershoffen geothermal plant located in Northern Alsace, France.

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Events

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy

This workshop that aims to investigate geothermal energy’s current and future role in the energy transition and is organized by members of the geothermal industry and the oil and gas industry will be held between 08 - 09 November 2018 in Strasbourg, France.
The workshop calls for abstracts on a variety of topics that can be found here. Abstracts can be submitted until 30 September 2018.

Find detailled information here.

6th European Geothermal Workshop

6th European Geothermal Workshop 

This year's EGW will be held in Strasbourg, France on October 10 and 12, 2018. For more information, including the workshop programme, please visit their website. The deadline for registration and abstract submission is September 21, 2018. You can register for the workshop here. Conference details (including location, access information, and field trip details) will be sent to all participants once registration has closed.

Join our Mid-Term Conference in Glasgow

DESTRESS will meet in Glasgow for its midterm conference this spring. If you would like to join us, please register yourself here until 21 March 2018. The participation is free of charge. Read more.

What makes geothermal projects a success? Second DESTRESS workshop at GeoTHERM Offenburg

Even though geothermal heat is a promising source to enrich and contribute to the renewable energy mix, it is not risk-free. The question therefore is: what makes a geothermal project successful? ...

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3rd Access Programme: Joint Horizon 2020 event of DESTRESS and DEEPEGS

In the framework of the third DESTRESS access program ES-Géothermie organized two geothermal site visits on the 11 and 14 October 2017. These events, framing the European Geothermal Workshop 2016 in Karlsruhe, were a great opportunity for participants to discover two enhanced geothermal system plants in operation located in the French part of the Upper Rhine Graben.

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Fruitful and Demanding Get-Together at the 2nd General Assembly

Travelling to the General Assembly in Klaipeda, Lithuania, was quite a challenge for many participants. But productive sessions and face-to-face encounters on the "working side" as well as good food and even sunshine on the "leisure side" made the journey more than worthwhile.

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2nd DESTRESS Access Programme in Klaipeda, Lithuania

DESTRESS will hold a joint project workshop together with the EU-project SURE concerning the stimulation and drilling methods of the geothermal plant in Klaipeda. Furthermore, a site tour to the demonstration plant of GEOTERMA will be offered. Applications until 19 February.

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H2020 Workshop on Geothermal Research in Brussels

Early September, the project leaders and managers as well as the communication and dissemination managers gathered for a workshop on H2020 GeoThermal Research and Innovation Projects in Brussels.

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Schatzalp Workshop on Induced Seismicity in Davos

DESTRESS is partly sponsoring the 2nd Schatzalp Workshop on induced seismicity in Davos, Switzerland, between 14 to 17 March 2017. Ernst Huenges, project coordinator of DESTRESS, is one of the distinguised keynote speakers.

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1st Stakeholder Event at EGC Strasbourg

DESTRESS is establishing a stakeholder network to facilitate the exchange of good practices and to exploit project results.

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First Progress Meeting in Potsdam

34 people, about a third of the all persons involved in DESTRESS, travelled from various European countries and Korea to Potsdam, Germany, for the first progress meeting in September 2016.

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First DESTRESS-Workshop: Korean-European Knowledge Exchange on EGS

In July 2016, researchers and experts in geothermal energy from Germany, France, Switzerland and Korea conducted the first DESTRESS stakeholder workshop. In Seoul they discussed recent progresses of different EGS projects.

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Successful Kick-off in Utrecht

DESTRESS has started. On Monday, 7th March 2016, the kick-off meeting took place in Utrecht/ in the Netherlands.

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