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Published in 2017 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-017-1255-6
Abstract: China has abundant shale gas resource, but its geological conditions are complicated. This work sought to find the shale breaking mechanism with the polycrystalline diamond compact (PDC) bit when drilling the shale that is rich…
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Keywords:
micro pdc;
shale breaking;
bit;
pdc bit ... See more keywords
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Published in 2017 at "Applied Geophysics"
DOI: 10.1007/s11770-017-0609-x
Abstract: The preferred orientation of clay minerals dominates the intrinsic anisotropy of shale. We introduce the clay lamination (CL) parameter to the Backus averaging method to describe the intrinsic shale anisotropy induced by the alignment of…
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Keywords:
physics;
longmaxi shale;
rock physics;
clay ... See more keywords
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Published in 2021 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2021.120412
Abstract: Abstract Geochemical homogeneity in shale is often assumed when tracing subsurface fluids and characterizing sedimentary basins. This study presents measurements of the bulk gas composition, stable isotopes, and noble gas volume fraction and isotopes for…
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Keywords:
gas;
sichuan basin;
longmaxi shale;
noble gas ... See more keywords
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Published in 2017 at "International Journal of Coal Geology"
DOI: 10.1016/j.coal.2017.02.004
Abstract: Abstract The first commercial shale gas with the capability to produce 203,000 cubic meters per day were discovered in the Wufeng-Longmaxi (O 3 w-S 1 l) shale (namely, the upper Ordovician Wufeng shale (O 3 w) and the lower…
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Keywords:
area;
longmaxi shale;
shale;
wufeng longmaxi ... See more keywords
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Published in 2018 at "Marine and Petroleum Geology"
DOI: 10.1016/j.marpetgeo.2018.01.001
Abstract: Abstract The Lower Silurian Longmaxi shale is the most important marine shale gas play in South China. Several hundred wells have been drilled to date, of which more than 150 wells have obtained high initial…
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Keywords:
lower silurian;
gas;
sichuan basin;
longmaxi shale ... See more keywords
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Published in 2020 at "Marine and Petroleum Geology"
DOI: 10.1016/j.marpetgeo.2020.104662
Abstract: Abstract X-ray diffraction (XRD), field emission/focusing ion beam scanning electron microscopy (FE-/FIB-SEM), nitrogen gas adsorption (N2GA), and geochemical analyses were performed on the Lower Longmaxi shale in the southeastern Sichuan Basin and its adjacent areas…
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Keywords:
hosted pores;
lower longmaxi;
pore development;
longmaxi shale ... See more keywords
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Published in 2020 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.106479
Abstract: Abstract An accurate description of the evolution of the internal structure of shale during loading and fracturing is important to understand the failure mechanisms that are related to shale-gas migration. The aim of this work…
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Keywords:
novel ray;
evolution;
microscopy;
ray microscopy ... See more keywords