Micro-
to nano-scale areal heterogeneity
in pore structure and mineral compositions of a sub-decimeter-sized
Eagle Ford Shale
Qiming Wanga, Qinhong Hua, *, Chen
Zhaoa,
Xiaoguang
Yanga,b , Tao Zhanga, Jan
Ilavskyc, Ivan Kuzmenkoc, Binyu
Mad, and Yukio Tachie
a Department of Earth and Environmental Sciences, the
University of Texas at Arlington, TX 76019, USA
b School of Energy Resources, China University of
Geoscience (Beijing), Beijing, 100083, China
c X-ray Science Division, Advanced Photon Source,
Argonne National Laboratory, Lemont, IL 60439
d Shandong Provincial Key Laboratory of Deep Oil and
Gas, China University of Petroleum (East China), Qingdao 266580, China
e Department of Geological Disposal Research, Japan
Atomic Energy Agency, Ibaraki-ken, 319-1194, Japan.
Prepared for:
Journal of Geophysical Research - Solid Earth
April 17, 2022
* Corresponding author:
maxhu@uta.edu
Key Words: Eagle Ford Shale, X-ray scattering, pore structure, μ-XRF,
heterogeneity
Key Points (140 character limit
including
spaces):
- An areal heterogeneity was studied by multiple approaches on two
sub-decimeter-sized samples of fine-grained Eagle Ford Shale.
- Pore structure of nm-μm-scaled pore sizes mapped by SANS are coupled
with petrography, porosimetry, mineralogy, and organic geochemistry.
- Areal heterogeneity of porosity distribution and sedimentary features
is derived at our sampling and analytical scales.