Results 21 to 30 of about 2,233,482 (303)

Characteristics of lacustrine shale porosity evolution, Triassic Chang 7 Member, Ordos Basin, NW China

open access: yesPetroleum Exploration and Development, 2015
With low mature Triassic Chang 7 Member shale samples from the Ordos Basin as study object, the 3-D porosity evolution with temperature increase and its main controlling factors are analyzed based on the physical modeling under high temperature ...
Songtao WU   +9 more
doaj   +1 more source

Thermo-Hydro-Mechanical Coupling Numerical Simulation on Mechanical Heterogeneity of Coal Rock

open access: yesGeofluids, 2022
Coal rock is a porous medium composed of organic matter and inorganic minerals, and it is very complex and highly heterogeneous. Coal bed methane (CBM) production is a thermo-hydro-mechanical (THM) coupling process in heterogeneous coal rock.
Shuiqing Hu   +7 more
doaj   +1 more source

Molecular simulation of CO2/CH4 competitive adsorption in organic matter pores in shale under certain geological conditions

open access: yesPetroleum Exploration and Development, 2016
To reveal competitive absorption behavior between CH4 and CO2 in organic matter (OM) nanopores, OM pore structure was first characterized using focused ion beam−scanning electron microscope (FIB-SEM) and pore-size distribution was studied using N2 ...
Xiaoqi WANG   +6 more
doaj   +1 more source

Identification of MarvelD3 as a tight junction-associated transmembrane protein of the occludin family [PDF]

open access: yes, 2009
Background: Tight junctions are an intercellular adhesion complex of epithelial and endothelial cells, and form a paracellular barrier that restricts the diffusion of solutes on the basis of size and charge.
Rodrigues, N.T.L.   +11 more
core   +1 more source

Experimental Study on the Effect of Supercritical CO2 on Mechanical Properties and Fracture Characteristics of Longmaxi Shale

open access: yesAdvances in Materials Science and Engineering, 2023
Conventional hydraulic fracturing techniques typically consume large amounts of water when producing shale gas. Fracking fluids may cause environmental pollution. In contrast, supercritical carbon dioxide (scCO2) (above 31.8°C, 7.29 MPa) can displace CH4
Ran Zhang   +4 more
doaj   +1 more source

Quantitative assessment of the sweet spot in marine shale oil and gas based on geology, engineering, and economics: A case study from the Eagle Ford Shale, USA

open access: yesEnergy Strategy Reviews, 2021
Shale oil and gas have become important areas of petroleum exploration and development. Successful shale oil and gas exploration depends on the accurate evaluation of sweet spots, which are the commercial targets.
Lianhua Hou   +10 more
doaj   +1 more source

Application of charging effects in evaluating storage space of tight reservoirs: A case study from Permian Lucaogou Formation in Jimusar sag, Junggar Basin, NW China

open access: yesPetroleum Exploration and Development, 2015
According to the study of the electron beam charging effects of oil-bearing samples from tight reservoirs, a “Two-step Cross-section Back Scattered Electron (BSE) Imaging Method” is put forward, revealing the distribution of residual oil (the oil without
Xiaoqi WANG   +7 more
doaj   +1 more source

Regulation of tight junction assembly and epithelial morphogenesis by the heat shock protein Apg-2 [PDF]

open access: yes, 2007
Background: Tight junctions are required for epithelial barrier formation and participate in the regulation of signalling mechanisms that control proliferation and differentiation.
Aijaz Saima   +7 more
core   +1 more source

Raman Spectra Characteristics of Fluid Inclusion in the Shaanxi Formation of the Dingbian Area in the Ordos Basin

open access: yesYankuang ceshi, 2015
Raman Spectroscopy is an important means of non-destructive fluid inclusions analysis. Composition of fluid inclusions in quartz from the Shaanxi formation of the Dingbian area in the Ordos Basin was determined by the Raman technique.
LI Yan-xia, YAN Xin-yi, TIAN Yu-feng
doaj   +1 more source

Classification of microscopic pore-throats and the grading evaluation on shale oil reservoirs

open access: yesPetroleum Exploration and Development, 2018
: On the basis of the characterization of microscopic pore-throats in shale oil reservoirs by high-pressure mercury intrusion technique, a grading evaluation standard of shale oil reservoirs and a lower limit for reservoir formation were established ...
Shuangfang LU   +7 more
doaj   +1 more source

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