| Evaluation of Cuttings Transport Impact on Percussive Drilling Performance |
Xianfeng SONG, Gaspar GOHIN, Trond Harald BERGSTRØM, Terence COUDERT, Pascal Alexandre KANE |
Drilling and Completion Technology |
geothermal, percussive drilling, cuttings transport, pressure loss, rate of penetration |
World Geothermal Congress |
2020 |
English |
| Example Case of Geothermal Well Control Event |
Tommy SOUVANIR, Redha Bhawika PUTRA, Doddy DARMAWAN |
Drilling and Completion Technology |
geothermal well, well control, geothermal drilling |
World Geothermal Congress |
2020 |
English |
| Achieving Step-Change Operational Performance Through Innovative Application of Coiled Tubing and Contractor-Client Partnership |
Karl SPINKS, Dane COPPELL |
Drilling and Completion Technology |
cost-effective, innovation, coil-tubing, CTU, well-cleaning, abandonment, scale |
World Geothermal Congress |
2020 |
English |
| IDDP-2 DEEPEGS Drilling Experience and Lesson Learned |
Ari STEFANSSON, Gudumundur O. FRIDLEIFSSON, Þor GISLASON, Omar SIGURÃSSON |
Drilling and Completion Technology |
iddp-2, drilling, coring, cementing |
World Geothermal Congress |
2020 |
English |
| Evaluation of Lost Circulation Mechanisms and Solutions in Ulubelu Geothermal Field Drilling |
Bambang Yudho SURANTA, Adi Setiawan RAISYA, Faishal HAFIZH, Akhmad SOFYAN, Hari Sumantri AKA |
Drilling and Completion Technology |
Geothermal drilling, Lost Circulation, Lost Circulation Material (LCM), Diaseal-M, Cement plug |
World Geothermal Congress |
2020 |
English |
| A Review of Casing Failures in Geothermal Wells |
P. V. SURYANARAYANA, Ravi KRISHNAMURTHY, Udaya SATHUVALLI, John BOWLING |
Drilling and Completion Technology |
well construction, well integrity, failure modes, corrosion, materials selection |
World Geothermal Congress |
2020 |
English |
| Theistareykir Geothermal Power Plant – Successful Drilling Campaign |
Olafur SVERRISSON, Bjarni PALSSON, Asgrimur GUDMUNDSSON, Sveinbjorn HOLMGEIRSSON |
Drilling and Completion Technology |
Theistareykir, drilling campaign, overpressured areas, well design |
World Geothermal Congress |
2020 |
English |
| ThermoDrill - Fast Track Innovative Drilling System for Deep Geothermal Challenges |
Dimitra TEZA, Jörg BAUMGÄRTNER, Thomas STOXREITER, Karin REHATSCHEK, Stefan ESSL, Philipp MODER, Simone PALLESI, Alessandro BERTINI, Gary PORTWOOD, Alessio CECHI, Clément BAUJARD, Olivier SEIBEL, Alfredo RAMOS RODRIGUEZ, José Maria CASCAJO LÓPEZ, Alexander BUCHNER, Roland FASCHINGBAUER, Johann PLANK, Timon ECHT |
Drilling and Completion Technology |
water jetting, hard rock, drill bit, drilling fluid, penetration rate, prototype |
World Geothermal Congress |
2020 |
English |
| Geothermal Well Design Using the New 2015 New Zealand Standard and 1991 Standard A Case of MW-20A in Menengai, Nakuru County, Kenya |
Anthony NG’ANG’A, Sverrir THÓRHALLSSON, Ingólfur Örn THORBJÖRNSSON, Gunnar Skúlason KALDAL |
Drilling and Completion Technology |
well design, New Zealand design code, geothermal well, reservoir condition, minimum casing depth, design premise, minimum design factor, corrosion. |
World Geothermal Congress |
2020 |
English |
| Flexible Couplings for Improved Casing Design in high-temperature Geothermal Wells |
I. THORBJORNSSON, G.S.KALDAL |
Drilling and Completion Technology |
Casing design, Casing collapse, Thermal expansion, Flexible couplings, GeoWell, DEEPEGS. |
World Geothermal Congress |
2020 |
English |
| Lightweight Variable-Density Well Cement with Self-Healing Properties for Applications in Geothermal Wells |
George TRABITS, Geoff TRABITS |
Drilling and Completion Technology |
lightweight variable density well cement, self-repair, acid resistance, ferrierite, zeolite, intergrinding |
World Geothermal Congress |
2020 |
English |
| Advanced Geothermal Well Architectures: Key Issues in Upgrading Well Performance and Formation Evaluation |
Pierre UNGEMACH, Miklos ANTICS, Melanie DAVAUX |
Drilling and Completion Technology |
Well architecture, Drilling, Completion, Geosteering, Logging while drilling, Formation Evaluation |
World Geothermal Congress |
2020 |
English |
| Custom PDC Bits Significantly Increase Drilling Performance in Tauhara Geothermal Drilling Project, Taupo, New Zealand |
Pawl VICTOR, Ellie LOCK, Ching BASIL, Rob TIPPLES |
Drilling and Completion Technology |
PDC, bits, PDC bits, geothermal bits, harsh rock, drilling practices, drilling performance |
World Geothermal Congress |
2020 |
English |
| A Users Guide to Leak-off Test Procedures and Interpretation for Geothermal Wells |
Irene Clare WALLIS, David Stephen PYE, David DEMPSEY, Julie ROWLAND |
Drilling and Completion Technology |
XLOT, LOT, well testing, tectonic stress, stress analysis |
World Geothermal Congress |
2020 |
English |
| Phase Behavior of Nitrogen Transport in Fractures During Liquid Nitrogen Fracturing in Deep Geothermal Reservoirs |
WEN Haitao, YANG Ruiyue, HUANG Zhongwei, HONG Chunyang, CHEN Jianxiang, SONG Guofeng |
Drilling and Completion Technology |
Geothermal reservoir, Unsteady-state model, Liquid nitrogen fracturing |
World Geothermal Congress |
2020 |
English |
| Coiled Tubing Live Well Cleanouts |
Daniel WILSON, Josh ANDERSON |
Drilling and Completion Technology |
calcite scaling, slica scaling, workover, Contact Energy, Wairakei, Western Energy, live well cleanout, coiled tubing |
World Geothermal Congress |
2020 |
English |
| Effective Containment Pressure – A Concept for Casing Shoe Strength Assessment and a Method for Forecasting It |
Ralph WINMILL |
Drilling and Completion Technology |
well design, formation strengths, casing shoe, pressure containment |
World Geothermal Congress |
2020 |
English |
| An Integrated analytical Approach to Casing Connection Evaluation for Geothermal Applications |
Jueren XIE, Mark DROESSLER |
Drilling and Completion Technology |
casing, connections, evaluation, experimental verification, finite element analysis, FEA, geothermal, geothermal well design, high temperature, premium connections, sealability criteria, strain-based design, testing, well design |
World Geothermal Congress |
2020 |
English |
| A New Method of Liquid Nitrogen Assisted PDC Bit Breaking Hot Dry Rocks in Geothermal Drilling |
XIONG Chao, HUANG Zhongwei, YANG Ruiyue, DAI Xianwei, HUI Chengyu, KUI Guofeng |
Drilling and Completion Technology |
Liquid nitrogen, PDC bit, Hot dry rock, Geothermal drilling |
World Geothermal Congress |
2020 |
English |
| Development of New Formulation of Calcium Aluminate Cement System for Ultrahigh-Temperature Supercritical Geothermal Wells |
Yuki YOSHIDA, Yoshiharu GOTO, Takashi SATO, Tetsuya ITO, Shigemi NAGANAWA |
Drilling and Completion Technology |
cementing, calcium aluminate cement, thickening time |
World Geothermal Congress |
2020 |
English |