The effects of high heating rate and high temperature on the rock strength: feasibility study of a thermally assisted drilling method
In this paper, the feasibility of a thermally assisted drilling method is investigated. The
working principle of this method is based on the weakening effect of a flame-jet to enhance …
working principle of this method is based on the weakening effect of a flame-jet to enhance …
Demonstration of thermal borehole enlargement to facilitate controlled reservoir engineering for deep geothermal, oil or gas systems
The creation of deep reservoirs for geothermal energy or oil and gas extraction is impeded
by insufficient stimulation. Direction and extension of the created fractures are complex to …
by insufficient stimulation. Direction and extension of the created fractures are complex to …
[PDF][PDF] Innovative drilling technology for supercritical geothermal resources development
S Naganawa, N Tsuchiya, T Okabe, T Kajiwara… - …, 2017 - pangea.stanford.edu
Supercritical geothermal system originated in Japan Trench subduction zone has the
potential to generate a terawatt-scale of energy in Japan. For development of the …
potential to generate a terawatt-scale of energy in Japan. For development of the …
Thermal spalling failure mechanism of heterogeneous granite under moving heat source
W Liu, A Li, C Xiang, X Zhu - Geoenergy Science and Engineering, 2024 - Elsevier
The conventional mechanical methods employed for rock breaking encounter substantial
challenges in deep, hard formation drilling, characterized by low penetration rates and …
challenges in deep, hard formation drilling, characterized by low penetration rates and …
[PDF][PDF] Study of the plasma flow interaction with the borehole surface in the process of its thermal reaming
O Voloshyn, I Potapchuk, O Zhevzhyk… - Mining of mineral …, 2018 - irbis-nbuv.gov.ua
Purpose. Study of the plasma flow interaction with the borehole surface in the process of its
thermal reaming for determination of transient temperature distribution along the borehole …
thermal reaming for determination of transient temperature distribution along the borehole …
Multi-geophysical approach for the characterization of thermally-induced cracks in granite: discussion of reproducibility and persistence
We study damage induced by low temperature variations in granite samples given their role
in shallow geological reservoirs. We consider two thermal treatments, slow cooling and …
in shallow geological reservoirs. We consider two thermal treatments, slow cooling and …
高温-液氮循环处理下花岗岩损伤劣化机制.
唐旭海， 邵祖亮， 许嬪璟… - Hazard Control in …, 2022 - search.ebscohost.com
探讨通过高温-液氮循环处理使花岗岩初步劣化以辅助隧道掘进机(tunnel boring machineꎬ
TBM) 掘进的新技术手段ꎮ 对花岗岩进行200℃-液氮, 300℃-液氮及400℃-液氮循环处理ꎬ …
TBM) 掘进的新技术手段ꎮ 对花岗岩进行200℃-液氮, 300℃-液氮及400℃-液氮循环处理ꎬ …
Thermal spallation drilling: Application possibilities and viability assessment of a novel drilling technology
M Kant - 2017 - research-collection.ethz.ch
In order to promote the development of geothermal energy production from deep resources,
cost effective solutions to increase the drilling performance have to be developed. Currently …
cost effective solutions to increase the drilling performance have to be developed. Currently …
[PDF][PDF] Multi-geophysical approach for characterization of thermally-induced cracks in granite: discussion of repetitivity and durability
In this work, we propose an experimental study to characterize micro-scale damage
introduced in a granite with two different thermal treatments performed at low temperature …
introduced in a granite with two different thermal treatments performed at low temperature …
The Failure Mechanism of Thermal Spallation in Granitic Rock
W Liu, C Xiang, X Zhu - Available at SSRN 4387953 - papers.ssrn.com
The problems of low rate of penetration and high drilling cost of traditional mechanical rock
breaking methods are extremely prominent in the deep hard formation drilling. It is …
breaking methods are extremely prominent in the deep hard formation drilling. It is …