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Development of novel and cost-effective drilling technology for Geothermal Systems

Deliverables

A project website

This deliverable is part of Task 10.3. The project website will be created and regularly updated by TWI.

Characterisation report

Led by GEO under Task 1.2, the report will include information on the collected data and samples regarding geofluid, temperature, geology, rheology, drilling mud for analysis and characterisation. The results of the analysis will be used to formulate representative geothermal drill environment which will be used to set up the simulated laboratory geothermal environment.

FMEA report

Led by TVS, this report will be outcome of the activities under Task 1.1. Common failures in geothermal drilling will be identified followed by evalutaion by key experts. The expert’s responses will be summarized, and final FMEA worksheet will be generated according to the format presented in the following table (by XFMEA software).

Report on geothermal well flow assurance simulator

As part of Task 71 the delievarble will provide a report on the deveopment of a geothermal well flow simulator including deatils about the extension of the simulator to activities including development of a 1D annuli model extension to handle nonNewtonian fluids with focus on drilling mud development of a simplified timedependent 1Dmodel development of force models and drilling mud properties

Rheology testing Report

The deliverable is a report on the rheology testing of drilling mud performed by GER under Task 1.2 as part of characterisation of the geothermal drilling environment.

Report on drill bit tooth, fluidic oscillator, and stabilizer coating manufacture and properties

Report on development of coating systems such as tungsten carbide WC tungsten carbide cobalt chrome WCCoCr Nickel alloy coatings eg NiCrFeSiB based selffluxing alloys and nanocrystallineamorphous materials carried out under Task 23 5 test coupon for each coating developed will be prepared to be tested in WP3

Geo-Drill KPIs

Report on established KPIs related to hammer, drill bit, drill pipe, sensor, data acquisition and drill monitoring system performance under Task 1.4. The threshold values set for each KPI will be used to benchmark success criterion for material and coating synthesis & optimisation (WP2), drilling components development (WP4, WP5, WP6, WP7, WP8) and testing & validation activities (WP3, WP9).

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Publications

Geo-Drill: Development of novel and cost-effective drilling technology for geothermal systems

Author(s): Feifei Zhang, Henry Begg, Namrata Kale, Sandeep Irukuvarghula, Kate Franklin, Kevin Mallin, Volker Wittig, Simon Hahn3, Beatriz Alonso Rodriguez, Fahim Chowdhury, Mohammad Ashadul Hoque, Sigrún Nanna Karlsdóttir, Gifty Oppong Boakye, Per Kjellgren, Pufinji Obene, Kristján Friðrik Alexandersson, Sunna Ólafsdóttir Wallevik
Published in: Conference proceedings of the World Geothermal Congress WGC2020+1, 2021
Publisher: World Geothermal Congress WGC2020+1

Microstructural Characterization, Corrosion and Wear Properties of Graphene Oxide Modified Polymer Coatings for Geothermal Drilling Application

Author(s): Gifty Oppong Boakye, Erlend O. Straume, Danyil Kovalov, Beatrice Alonzo Rodrigue, Sigrun Nanna Karlsdottir
Published in: Conference proceedings of the CORROSION 2021 Conference, 2021
Publisher: NACE

High Temperature Testing of Materials and Corrosion Resistant Coatings for Geothermal Drilling Applications

Author(s): Erlend O. Straume, Gifty Oppong Boakye, Beatrice Alonzo Rodrigue, Sigrun Nanna Karlsdottir
Published in: Conference proceedings of the World Geothermal Congress WGC2020+1, June 2021, 2019
Publisher: World Geothermal Congress WGC2020+1