| Risk-based Maintenance Decision Support for Geothermal Drilling Rigs. A Case Study for KenGen Drilling Rigs |
Sandys MUKHONGO, James WAKIRU, Peter MUCHIRI, Njenga MBURU |
Drilling and Completion Technology |
rig, failure, cost based FMEA |
World Geothermal Congress |
2020 |
English |
| Application of Modified Inflatable Packer to Repair Production Casing Leak in Big Hole Geothermal Well |
Ali MUNDAKIR, Agus A. ZUHRO, Budi SETIAWAN |
Drilling and Completion Technology |
Production Casing Leak, Big Hole Well, Workover and Well Repair, Wooden Plug, Modifired Inflatable Packer |
World Geothermal Congress |
2020 |
English |
| Dealing with Circulation Losses in Geothermal; Case Study Menengai Geothermal Field, Kenya |
Marietta MUTONGA |
Drilling and Completion Technology |
geothermal, circulation losses, drilling fluids, geology , directional wells |
World Geothermal Congress |
2020 |
English |
| Risk Assessment and Risk Modelling in Geothermal Drilling |
Lilian Aketch OKWIRI |
Drilling and Completion Technology |
drilling risks, geothermal drilling, risk management, cost and schedule estimation |
World Geothermal Congress |
2020 |
English |
| Evaluation of Potential Recompletions of Asal Offset Wells: Techniques and Challenges Assets Evaluations |
Farah OMAR FARAH |
Drilling and Completion Technology |
Drilling, Recompletion, Sidetracking, Perforation, Seal off. |
World Geothermal Congress |
2020 |
English |
| Success of Geothermal Wells Drilled in Olkaria Domes Sector (Greater Olkaria Geothermal Area, Kenya) |
Kizito M. OPONDO, Vincent KOECH, Erique NYAWIR, |
Drilling and Completion Technology |
Olkaria Domes Sector, drilling and financing risks, exploration, appraisal and production drilling. |
World Geothermal Congress |
2020 |
English |
| Finite Element Modelling of a Novel Casing Protection for High Temperature Geothermal Wells |
Mehmet PEKYAVAS, Magnús Þór JÓNSSON, Sigrún Nanna KARLSDÓTTIR, Gunnar SKÚLASON KALDAL, Sunna ÓLAFSDÓTTIR WALLEVIK |
Drilling and Completion Technology |
finite element methods, corrosion, thermal expansion, sacrificial casing |
World Geothermal Congress |
2020 |
English |
| Integrated Stuck-Pipe-Prevention Campaign in Geothermal Drilling Project in Indonesia: A Proactive Approach |
Dorman PURBA, Daniel W. ADITYATAMA, Febri N. SIREGAR, Muhamad SOLEHUDIN, M. Rizqi Al ASY'ARI, Artahsasta A. WICAKSANA, Mukhamad F. UMAM, Dicky ALAMSYAH, Ribka ASOKAWATY |
Drilling and Completion Technology |
stuck pipe, geothermal, drilling, proactive approach, exploration, NPT, risk assessment, Indonesia |
World Geothermal Congress |
2020 |
English |
| Significants Improvement in the 2018-2019 Wayang Windu Drilling Campaign |
Redha Bhawika PUTRA, Tommy SOUVANIR, Edyson PURBA, Muhammad IRFAN, Doddy DARMAWAN |
Drilling and Completion Technology |
Wayang Windu, drilling performance |
World Geothermal Congress |
2020 |
English |
| Self-healing, Re-adhering and Carbon-Steel Corrosion-Mitigating Inorganic Cement Composites for Geothermal Wells at 300degC |
Tatiana PYATINA, Toshifumi SUGAMA |
Drilling and Completion Technology |
geothermal wells, high-temperature cements, self-healing, secondary cementitious materials, fly ash, slag, calcium-aluminate cement, acid resistance, corrosion protection, alkali activation, thermal shock |
World Geothermal Congress |
2020 |
English |
| Innovative Materials and Designs for Long-life High-temperature Geothermal Wells |
Ãrni RAGNARSSON, Pierre DURST, Erlend RANDEBERG, Thomas REINSCH, Ingólfur THORBJORNSSON, Jens WOLLENWEBER, Willem DE JONG, Carsten F. SORLIE, Ómar SIGURDSSON, Frank VERCAUTEREN, Gunnar Skúlason KALDAL |
Drilling and Completion Technology |
geothermal well, well integrity, well design, cementing, casing connections, casing material, well monitoring, composite casings, risk assessment |
World Geothermal Congress |
2020 |
English |
| Novel Productivity Enhancement Concept for a Sustainable Utilization of a Geothermal Resource – the SURE Project |
Thomas REINSCH, Guido BLÖCHER, David BRUHN, Jörg ZOTZMANN, Volker WITTIG, Ingólfur Örn ÞORBJÖRNSSON, Gunnar SKÚLASON KALDAL, Koos HOOGLAND, Elisabeth PETERS, John-Paul LATHAM, Sigitas PETRAUSKAS, Hamid M. NICK, Saulius ŠLIAUPA, SURE CONSORTIUM |
Drilling and Completion Technology |
radial water jet drilling, reservoir stimulation |
World Geothermal Congress |
2020 |
English |
| Mechanical Specific Energy Analysis of the Utah FORGE Drilling |
William M. RICKARD, Ernesto RIVAS, Nasikul ISLAM |
Drilling and Completion Technology |
MSE, mechanical specific energy, drilling optimization, EGS, enhanced geothermal system, geothermal, drilling, FORGE Utah |
World Geothermal Congress |
2020 |
English |
| Formation Integrity Test Method for Geothermal Wells |
William M. RICKARD, Sam ABRAHAM, Ernesto RIVAS and Mary MANN |
Drilling and Completion Technology |
Fracture gradient, Formation Integrity Test, |
World Geothermal Congress |
2020 |
English |
| Top Squeeze or Top Fill: Improved Secondary Cementing for Geothermal Wells |
William M. RICKARD, Sam ABRAHAM and Ernesto RIVAS |
Drilling and Completion Technology |
cement, top-fill, top squeeze |
World Geothermal Congress |
2020 |
English |
| Connection Selection for Tie Back Production Casing in Geothermal Wells According to Finite Element Analysis and Physical Thermal Well Testing Protocol |
Nico RIYANTO, Geovannis NAPITUPULU, Sena SATYADARMA WAHYUDIN |
Drilling and Completion Technology |
Connection, tie back, production casing, geothermal well, FEA, TWCCEP |
World Geothermal Congress |
2020 |
English |
| Evaluating Casing Deformations in Geothermal Wells Using Multifinger Caliper Data Analysis |
John RUNCIMAN, Todd ZAHACY |
Drilling and Completion Technology |
wellbore deformation, multi-finger caliper, caliper logging, shear, buckling, collapse, parting, casing, failure, formation, well integrity |
World Geothermal Congress |
2020 |
English |
| Development of High-temperature Well Cement for Supercritical Geothermal Drilling with Consideration of Set Cement Strength |
Shimatoshi SAKUMA, Issei HAYASHI, Shigemi NAGANAWA, Takashi SATO, Tetsuya ITO, Yuki YOSHIDA |
Drilling and Completion Technology |
Supercritical Geothermal System, Drilling, Cementing, |
World Geothermal Congress |
2020 |
English |
| Application of a Unique Loss Circulation Curing Cement Spacer During Cement Placement in Geothermal Wells |
SAMUEL A S, UCHENDU C, OKOTO F, MALECHE J, KHAEMBA A, MURUNGI L and KULAKOFSKY D |
Drilling and Completion Technology |
well integrity, annulus, cement, zonal isolation, displacement, spacer, losses, loss circulation material, fractured formation, low fracture gradient |
World Geothermal Congress |
2020 |
English |
| Microwaving Graphene-Based Thermoset Polymers for Rapid and In-situ Wellbore Strengthening and Zonal Isolation |
Rouzbeh SHAHSAVARI |
Drilling and Completion Technology |
Microwave curing, wellbore strengthening, zonal isolation, graphene |
World Geothermal Congress |
2020 |
English |