Results 61 to 70 of about 2,950,395 (197)

Controlling effect of palaeo-tectonic stress field on gas occurrence [PDF]

open access: yes
The paleo-tectonic stress field was hereby inverted by using the stereographic projection method through field and underground observations of conjugate shear joints.
Yuan, Qing   +6 more
core   +1 more source

Fracture characteristics and its genesis of tight reservoir in Xujiahe formation of central Yuanba area in Sichuan basin

open access: yesYouqicang pingjia yu kaifa, 2018
The tight gas reservoir in the central Yuanba area of Sichuan basin is one of the major breakthrough in oil and gas survey in recent years. The fractures have important influence on the migration, enrichment and production capacity of the natural gas ...
Li Hu   +4 more
doaj  

Tectonic stability of the Nanpu sag: Evidence from temporal and spatial characteristics of seismic activity

open access: yesDizhi lixue xuebao
Objective  The evaluation of regional tectonic stability plays a crucial role in the planning and construction of major projects. Given that the Nanpu sag is the site for China's first offshore gas storage facility, its tectonic stability is naturally a ...
ZHANG Yang   +4 more
doaj   +1 more source

Ring-shear test data of quartz sand from the Tectonic Modelling Lab of the University of Bern (CH) [PDF]

open access: yes, 2018
This dataset provides internal and basal (wall) friction data from ring-shear tests (RST) on a quartz sand material that has been used in tectonic experiments in Zwaan et al. (2016, 2017), Zwaan and Scheurs (2017) and in the Tectonic Modelling Lab of the
Schreurs, Guido   +4 more
core   +2 more sources

Breather-type oscillations of the global tectonic shear stress fields

open access: yes, 2022
In this paper, two observations of the breather-type oscillating tectonic shear stress field in the Earth’s crust are described. The normalized tectonic shear stress from the regional earthquake focal mechanisms is calculated by using the modified moment
Žalohar, Jure   +7 more
core   +1 more source

Valuation method for sub-indicators of rock burst risk based on mining depth and tectonic stress

open access: yesMeitan kexue jishu
The mechanical properties of deep rocks differ from those of the shallow layers due to the complex environment. Rock burst disasters are often induced under the disturbance of coal mining.
Zhen LI   +7 more
doaj   +1 more source

Geomorphic response to neotectonic activity in the Jura Mountains and in the southern Upper Rhine Graben [PDF]

open access: yes, 2008
Present-day tectonic activity at the southern end of the Upper Rhine Graben in central Western Europe is evidenced by significant seismicity, which has been documented over hundreds of years.
Fraefel, Marielle
core   +1 more source

Fracture characteristics under the coupling effect of tectonic stress and fluid pressure: A case study of the fractured shale oil reservoir in Liutun subsag, Dongpu Sag, Bohai Bay Basin, Eastern China

open access: yesPetroleum Exploration and Development, 2015
Based on the integrated study on core description, fluid inclusions and basin modeling, and considering the coupling effect of tectonic stress and fluid pressure, the characteristics of fractures were analyzed in the inter-salt fractured shale oil ...
Yang LUO   +3 more
doaj   +1 more source

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

open access: yes, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Downes, H.   +8 more
core   +1 more source

Determining the buried depth of mountain-adjacent tunnels in hard rock under complex geostress conditions

open access: yesShuiwen dizhi gongcheng dizhi
Under complex geological and geostress conditions, the design of mountain-adjacent tunnels in hard rock areas faces numerous challenges, particularly in determining the tunnel’s buried depth.
Yuping YAN   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy