| A New Approach to Prevent Lost Circulation While Drilling in Fracture-Cavity Type Carbonate Reservoirs: Theory, Numerical Assessment and Experimental Study |
Yiqun ZHANG, Chao YU, Guangming CHENG, Kexian ZHAO, Ya LIU |
Drilling and Completion Technology |
lost circulation, plugging, carbonate reservoir, cavity |
World Geothermal Congress |
2020 |
English |
| Geo-Drill: Development of Novel and Cost-effective Drilling Technology for Geothermal Systems |
Feifei ZHANG, Henry BEGG, Namrata KALE, Sandeep IRUKUVARGHULA, Kate FRANKLIN, Kevin MALLIN, Volker WITTIG, Simon HAHN, Beatriz RODRIGUEZ, Fahim CHOWDHURY, Mohammad HOQUE, Sigrún KARLSDÓTTIR, Gifty BOAKYE, Per KJELLGREN, Pufinji OBENE, Kristján ALEXANDERSSON, Sunna WALLEVIK |
Drilling and Completion Technology |
Geo-Drill, geothermal, drilling, DTH, materials and coatings |
World Geothermal Congress |
2020 |
English |
| Issues of Air-Lift Reverse Circulation Drilling Technologies for Geothermal Wells in China |
Xiuhua ZHENG, Bin LIU, Bole ZHENG, Chenyang DUAN |
Drilling and Completion Technology |
air-lift reverse circulation drilling, pressure profile, depth of dual-wall drill pipe, formation damage control, borehole stability |
World Geothermal Congress |
2020 |
English |
| Improvement of CMC on the Performance of CGA Drilling Fluids for Geothermal Drilling |
Wenxi ZHU, Xiuhua ZHENG, Li ZENG |
Drilling and Completion Technology |
geothermal well drilling, carboxymethyl cellulose, CGA drilling fluid, rheology, filtration loss |
World Geothermal Congress |
2020 |
English |
| Pertamina Geothermal Energy Drilling Campaign 2014 - 2018 |
Agus A. ZUHRO, Widoyo KRISNANTO, Fatah GUNAWAN |
Drilling and Completion Technology |
drilling, drilling campaign, improve drilling performance |
World Geothermal Congress |
2020 |
English |
| IDDP valves refurbishment |
Geir Thorolfsson, Sigrun N. Karlsdottir, Asbjorn Einarsson |
Drilling and Completion Technology |
Geothermal, IDDP 1, IDDP 2, Expanding Gate Valves. |
World Geothermal Congress |
2023 |
English |
| Research and Application of Multi-Technology of Air Underbalanced Geothermal Drilling |
Zhenzhuo Wan, Hongyu Ye, Hongyan Ye, Ziwei Lai, Changgen Bu, Xiuhua Zheng |
Drilling and Completion Technology |
multi-technology, air underbalanced drilling, geothermal |
World Geothermal Congress |
2023 |
English |
| Research and Application of Booster Compressor for Air DTH Hammer in Deep Well |
Renjie Zhang, Xiuhua Zheng, Hongyu Ye, Changgen Bu |
Drilling and Completion Technology |
Deep Wells, air DTH hammer drilling, lift water, booster |
World Geothermal Congress |
2023 |
English |
| New Challenges in casing design for deep geothermal well |
David Hernandez |
Drilling and Completion Technology |
drilling, casing, geothermal well, Mexico, new diameter, corrosion |
World Geothermal Congress |
2023 |
English |
| Numerical analysis on the damage characteristics of hot dry rock subjected to axial-torsional coupled percussion |
Zhaowei Sun, Xiaoguang Wu, Zhongwei Huang, Zixiao Xie, Wenchao Zou, Xianzhi Song |
Drilling and Completion Technology |
Hot dry rock; Percussive drilling; Damage analysis; Thermo-structural analysis |
World Geothermal Congress |
2023 |
English |
| Research on drilling and construction technology of geothermal exploration well D03 in Xiong’an New Area, China |
LI Junping, JIA Xiaofeng, WANG Guiling, FAN Lasheng, ZHANG Tongde |
Drilling and Completion Technology |
Impregnated - jet diamond bit, Core recovery, Compound drilling, the Jixian System, Geothermal exploration well |
World Geothermal Congress |
2023 |
English |
| Experimental Study on the Dynamic behavior and Energy Consumption of Hot Dry Rock under True Triaxial Condition |
Hualin Liao, Jun Wei, Feng Sun, Zongjie Mu, Shouceng Tian, Hongjun Liang, Ning Li, Bo Zhou |
Drilling and Completion Technology |
Dynamic behavior；Energy consumption; Hot dry rock; True triaxial stress; Impact damage; Strain rate effect; |
World Geothermal Congress |
2023 |
English |
| A Review and Comparison of Four Unconventional Drilling Technologies |
Rui Gao, Yudan Jia, Wei Zhou |
Drilling and Completion Technology |
novel drilling; plasma torch; electrical impulse; laser; millimeter wave |
World Geothermal Congress |
2023 |
English |
| Research and Application of Drilling Bit for Deep Air DTH Hammer Drilling Technology |
Haoyu Yu, Xiuhua Zheng, Hongyu Ye, Changgen Bu, Hongyan Ye |
Drilling and Completion Technology |
deep well, air DTH hammer , drill bit, hammer handle,gauge protection |
World Geothermal Congress |
2023 |
English |
| Design and Experimental Study of Intensifier for Deep Geothermal Drilling |
Yuhang He, Hualin Liao, Hedi Sellami, John-Paul Latham, Jiansheng Xiang, Laurent Gerbaud |
Drilling and Completion Technology |
Deep geothermal drilling; Intensifier; Output characteristics; CFD; Laboratory experiments |
World Geothermal Congress |
2023 |
English |
| Dynamic Bottom Hole Stress Reconstructing process induced by intensifier jet slotting in deep geothermal drilling |
huajian wang, Hualin Liao, Hedi Sellami, John-Paul LATHAM, Jiansheng Xiang, Laurent Gerbaud |
Drilling and Completion Technology |
Deep Geothermal Drilling, Jet Slotting, Stress Release, Down Hole Pressures, Fluid-Solid Coupling |
World Geothermal Congress |
2023 |
English |
| Casing failure analysis and proposed repair for well OW-740A in Olkaria Geothermal Field |
Nahashon Karanja Nzioka, Kristinn Ingason, Málfríður Ómarsdóttir |
Drilling and Completion Technology |
Thermal stresses, casing caliper, casing failure, workover, discharge tests, tie-back cementing, coiled tubing, cement plug, LCM, compressive strength. |
World Geothermal Congress |
2023 |
English |
| Air DTH Hammer Drilling Equipment and Its Application Status in China's Geothermal Industry |
Longjun Tian, Xiuhua Zheng, Hongyu Ye, Changgen Bu, Yuanyuan Su, Hongyan Ye |
Drilling and Completion Technology |
Air DTH hammer drilling, underbalanced drilling, technology, equipment. |
World Geothermal Congress |
2023 |
English |
| Laboratory Study of Supercritical Carbon Dioxide Shock Fracturing in Hot Dry Rock |
Xiaoguang Wu, Zhongwei Huang, Ziaoxiao Xie, Gensheng Li, Haizhu Wang, Wenchao Zou, Zhaowei Sun |
Drilling and Completion Technology |
Hot dry rock; Supercritical CO2; Fracturing; EGS; Geothermal stimulation |
World Geothermal Congress |
2023 |
English |
| Geothermal well design: extending feasibility under challenging geomechanical and thermal loads |
Raffaello Zambetti, Pietro Quattri, Paolo Novelli, Roberto Martini, Stefano Tarquini, Santiago Grittini |
Drilling and Completion Technology |
geomechanics, thermal loads, well design, strain based design, working stress design |
World Geothermal Congress |
2023 |
English |