Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Melvin Diaz"'
Autor:
Arno Zang, Günter Zimmermann, Hannes Hofmann, Peter Niemz, Kwang Yeom Kim, Melvin Diaz, Li Zhuang, Jeoung Seok Yoon
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
Abstract The ability to control induced seismicity in energy technologies such as geothermal heat and shale gas is an important factor in improving the safety and reducing the seismic hazard of reservoirs. As fracture propagation can be unavoidable d
Externí odkaz:
https://doaj.org/article/41bddbd71b4144b1a0eabbd47bfab1cc
Autor:
Ki-Bok Min, Hannes Hofmann, Li Zhuang, Sung Gyu Jung, Melvin Diaz, Günter Zimmermann, Kwang Yeom Kim, Arno Zang, Jeoung Seok Yoon, Ove Stephansson
Publikováno v:
Rock Mechanics and Rock Engineering
Laboratory hydraulic fracturing tests on cubic granite specimens with a side length of 100 mm were performed under true triaxial stress conditions combined with acoustic emission monitoring. Six different injection schemes were applied to investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::203d0f333c43147e6a43d0d2ae27d93c
https://doi.org/10.1007/s00603-020-02170-8
https://doi.org/10.1007/s00603-020-02170-8
Publikováno v:
Journal of Natural Gas Science and Engineering. 67:225-232
We present a feasibility assessment of predicting the rate of penetration (ROP) during wellbore drilling using data obtained as the drilling progresses within a given well. Drilling data from a 4.2 km-deep well at an enhanced geothermal system projec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c934636e914ef2276787bfaf1336cfd4
https://doi.org/10.1016/j.jngse.2019.05.004
https://doi.org/10.1016/j.jngse.2019.05.004
Autor:
Jeoung Seok Yoon, Peter Niemz, Li Zhuang, Kwang Yeom Kim, Günter Zimmermann, Arno Zang, Hannes Hofmann, Melvin Diaz
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
The ability to control induced seismicity in energy technologies such as geothermal heat and shale gas is an important factor in improving the safety and reducing the seismic hazard of reservoirs. As fracture propagation can be unavoidable during ene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3118d95c16f5e704c18e3a6941cb2aac
https://doi.org/10.1038/s41598-021-86094-5
https://doi.org/10.1038/s41598-021-86094-5
Publikováno v:
Rock Mechanics and Rock Engineering
This study aims to assess the fatigue behavior of granite subjected to cyclic hydraulic fracturing using cylindrical granite samples. Two sets of continuous and cyclic injection were carried out and monitored with acoustic emission (AE) sensors. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d18647128f3dcca61c739dcfe9be7bd
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5006359
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5006359
Publikováno v:
Sensors (Basel, Switzerland)
Sensors, Vol 20, Iss 6802, p 6802 (2020)
Sensors, Vol 20, Iss 6802, p 6802 (2020)
In-situ stress estimation plays an important role on the success of an underground project. However, no method is error-free, and therefore a combination of methods is desirable. In this study, the in-situ stresses for a geothermal project have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb013fdda9ee3ed7baf30850e6125c95
http://europepmc.org/articles/PMC7730807
http://europepmc.org/articles/PMC7730807
Publikováno v:
Modelling Rock Fracturing Processes ISBN: 9783030355241
This chapter introduces laboratory studies on the hydraulic fracturing of granite cores. Some of the most important factors influencing fracturing are considered, including injection rate, fluid infiltration, fluid viscosity, borehole size, and injec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efeb4f1cd5fe2187058b0d7c965927c9
https://doi.org/10.1007/978-3-030-35525-8_4
https://doi.org/10.1007/978-3-030-35525-8_4
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 98:10-19
The present invention relates to a surface roughness measuring method for a joint unit (1) included in a drilling core (10). According to the present invention, the surface roughness measuring method for a joint unit (1) of a drilling core (10) inclu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41b7e9b9fb2ed2e70617ac429933b07b
https://doi.org/10.1016/j.ijrmms.2017.07.001
https://doi.org/10.1016/j.ijrmms.2017.07.001
Publikováno v:
Lecture Notes in Civil Engineering ISBN: 9789811521836
We present an assessment on the predictability of the rate of penetration using artificial neural networks when only drilling records from an adjacent are at hand. The study was carried out with data from two Enhanced Geothermal System wells in South
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7eed991c4203bb8b03c1b674a134c850
https://doi.org/10.1007/978-981-15-2184-3_68
https://doi.org/10.1007/978-981-15-2184-3_68
Publikováno v:
Rock Mechanics and Rock Engineering
Hydraulic fracturing tests on Pocheon granite cylinders at seven different injection rates varying from 1 to 100 mm3/s were conducted. They were compared with sleeve fracturing tests in which borehole was sleeved, and therefore, water infiltration in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7413c4b3d21e4381d7db1d5fda9b3a35