| NANOSTRUCTURED CALCIUM SILICATE HYDRATE – A POTENTIAL SOLUTION TO PROBLEMATIC SILICA DEPOSITION FROM GEOTHERMAL BRINE AND A USEFUL PRODUCT |
J.H. Johnston and T. Borrmann |
Session 2.2: Scalling |
geothermal, silica, silica deposition, calcium silicate, nanostructured, geothermal energy, filler, fire retardant |
New Zealand Geothermal Workshop |
2017 |
English |
| RECOVERY OF NANO-STRUCTURED CALCIUM SILICATE HYDRATE FROM GEOTHERMAL BRINE USING A LAMELLA SEPARATOR |
T. Borrmann, M. Schweig, and J.H. Johnston |
Session 2.2: Scalling |
Scale formation, silica scale, silica, calcium silicate hydrate, nano-structured calcium silicate hydrate, geothermal energy, lamella separator, solid liquid separation |
New Zealand Geothermal Workshop |
2017 |
English |
| A model of silica colloid growth, stability and transport used to predict geothermal reinjection lifetime |
S. Chen, K. Brown, and M. Jermy |
Session 2.2: Scalling |
— |
New Zealand Geothermal Workshop |
2017 |
English |
| Scaling Mitigations for the Binary Plant Vaporizer: Upper Mahiao, the Philippines |
C.S. Candido and S.J. Zarrouk |
Session 2.2: Scalling |
Brine plant, scaling problem, hydrofluoric acid cleaning, Upper Mahiao, Leyte |
New Zealand Geothermal Workshop |
2017 |
English |
| CONTROL OF SILICA SCALES AT MOMOTOMBO NICARAGUA |
N. Delgado, O. Weres, J. Guido and M. Perez |
Session 2.2: Scalling |
Silica Scale Control, Binary Plant, Bottoming Cycle, Brine Line Scale, Momotombo Power Plant |
New Zealand Geothermal Workshop |
2017 |
English |
| Investigating the Geothermal Signature of the Kaimai Tunnel, New Zealand |
Y. Ramadhan, S.J. Zarrouk, and K. Luketina |
Session 2.3: Geochemistry |
Kaimai tunnel, water seepages, natural temperature gradient |
New Zealand Geothermal Workshop |
2017 |
English |
| X-RAY CHARACTERISATION OF SILICEOUS SINTER FROM STEAMBOAT SPRINGS AND ROOSEVELT GEOTHERMAL FIELDS, USA |
I. Qasim, B.Y. Lynne |
Session 2.3: Geochemistry |
X-ray, XRD, XRF, iTRAX, siliceous sinter, geochemical analysis, phase identification, elemental analysis |
New Zealand Geothermal Workshop |
2017 |
English |
| Applications of Sulfur Isotopes in Characterizing Reservoir Processes at the Kawerau Geothermal Field, New Zealand |
E. Buscarlet, A. Calibugan and F. Siega |
Session 2.3: Geochemistry |
Kawerau, sulfur isotope, hydrogen isotope, oxygen isotope, injection returns, marginal recharge |
New Zealand Geothermal Workshop |
2017 |
English |
| EXPERIMENTAL DETERMINATION OF THE THERMAL STABILITY OF THE ORGANIC TRACERS 1,5-NDS AND 2-NSA UNDER GEOTHERMAL CONDITIONS |
L. Sajkowski, B.W. Mountain, T.M. Seward |
Session 2.3: Geochemistry |
Tracer studies, naphthalene disulfonic acid, naphthalene sulfonic acid, NDS, NSA, experimental geochemistry |
New Zealand Geothermal Workshop |
2017 |
English |
| KARKAR, ARMENIA – SLIMHOLE DRILLING AND TESTING RESULTS AND REMOTE PROJECT MANAGEMENT OVERVIEW |
J. Gilliland, A. Austin, M. Wilmarth, C. Daskin, T. Babayan, R. Adams |
Session 2.4: Drilling |
Armenia, Karkar, slimhole, drilling, exploration, well test, project management |
New Zealand Geothermal Workshop |
2017 |
English |
| ADVANCED DYNAMICS FEA MODELLING AS A NEW APPROACH TO IMPROVE GEOTHERMAL DRILLING PERFORMANCE IN INDONESIA |
M.R.Y. Mardiana, B. Noviasta |
Session 2.4: Drilling |
FEA Modelling, Volcanic and Pyroclastic rocks, improvements, performance analysis |
New Zealand Geothermal Workshop |
2017 |
English |
| DRILLING OPTIMIZATION IN HARD AND ABRASIVE GEOTHERMAL VOLCANIC ROCK USING INNOVATIVE CONICAL DIAMOND ELEMENT BIT |
B. Noviasta, G. Napitupulu, S. Scagliarini, M. Centeno, D. Ardianto, M.R.Y. Mardiana, A.Z. Kurnia, J.F. Bao |
Session 2.4: Drilling |
Volcanic and Pyroclastic rocks, Conical Diamond Element (CDE) Bit, ROP improvements, performance |
New Zealand Geothermal Workshop |
2017 |
English |
| ACID SOLUBILITY TESTING OF GREYWACKE CORE AND IMPLICATIONS FOR WELL PERMEABILITY ENHANCEMENT |
P.A. Siratovich, M.C. Villeneuve, S. Mordensky, I. Richardson |
Session 2.4: Drilling |
Acidizing, Stimulation, Kawerau, Permeability, Strength, Porosity, Reservoir |
New Zealand Geothermal Workshop |
2017 |
English |
| Comparative Review of Methylene Blue Analysis Procedures in Nag-67 Redrill, Tiwi Geothermal Field |
I.G. Segura, L.D.A. Guidote, V.N.G. Ejera, C.M.M. Estrella, J.N.R. Crisostomo, and A.A. Calibugan |
Session 2.4: Drilling |
methylene blue test, smectite, clay, Tiwi |
New Zealand Geothermal Workshop |
2017 |
English |
| NUMERICAL MODELLING OF THE INFLUENCE OF GEOLOGY AND GROUNDWATER RECHARGE ON GEOTHERMAL SYSTEMS IN THE CENTRAL TVZ |
S.C. Pearson-Grant, S.D. Milicich, P.A. White and W.M. Kissling |
Session 3.1: Modelling |
Taupo Volcanic Zone, TOUGH2, convection, fluid flow, geothermal system |
New Zealand Geothermal Workshop |
2017 |
English |
| GENERATION OF ALTERNATIVE GEOLOGICAL MODELS FOR SPATIAL UNCERTAINTY IN A GEOTHERMAL CONTEXT |
A. Vidal and R. Archer |
Session 3.1: Modelling |
Reservoir modelling, geological uncertainty, geostatistics, multiple point statistics |
New Zealand Geothermal Workshop |
2017 |
English |
| 3D NATURAL STATE MODEL OF KARAHA-TALAGA BODAS GEOTHERMAL FIELD, WEST JAVA, INDONESIA |
W. Prabata, Sutopo and H. Berian |
Session 3.1: Modelling |
Karaha-Talaga Bodas geothermal field, natural state matching, TOUGH2 |
New Zealand Geothermal Workshop |
2017 |
English |
| THE SUBSURFACE GEOMETRY OF A NATURAL GEOTHERMAL RESERVOIR |
I.C. Wallis, J.V. Rowland, W. Cumming and D. Dempsey |
Session 3.1: Modelling |
Conceptual Models, Permeability, Review |
New Zealand Geothermal Workshop |
2017 |
English |
| GEOMETRICAL MODELLING OF FRACTURE NETWORKS IN AN ANDESITE-HOSTED GEOTHERMAL RESERVOIR |
W. Kissling, C. Massiot |
Session 3.1: Modelling |
fractures, networks, borehole imaging, permeability, power law length distributions |
New Zealand Geothermal Workshop |
2017 |
English |
| CHEMICAL CLEANING AND REJUVINATION OF GEOTHERMAL WELLS AND SURFACE EQUIPMENT |
J.S. Gill, G. Jacobs, D. Mantri, and L.M. Rocca |
Session 3.2 Scaling |
well rejuvenation, turbine cleaning, silica dissolution, corrosion control, alternate acid |
New Zealand Geothermal Workshop |
2017 |
English |