Results 21 to 30 of about 35,815,104 (284)

Research of influencing factors on permeability for carbonate rocks based on LBM simulation: A case study of low-permeability gas reservoir of Sinian Dengying Formation in Sichuan Basin

open access: yesFrontiers in Earth Science, 2023
Instruction: Due to the declining production rate of conventional natural gas reservoir and the rising demand for natural gas resources, conventional natural gas resources cannot satisfy the needs of economic development.
Shan Yang   +8 more
doaj   +1 more source

Digital Rock Mechanical Properties by Simulation of True Triaxial Test: Impact of Microscale Factors

open access: yesGeotechnics, 2023
Complex fractures and pore structures in the rock strongly influence the mechanical properties, and the process from compression to failure is complicated.
Wenjie Ma   +9 more
doaj   +1 more source

A High Throughput Method for Measuring Polycyclic Aromatic Hydrocarbons in Seafood Using QuEChERS Extraction and SBSE

open access: yesInternational Journal of Analytical Chemistry, 2015
National Oceanic and Atmospheric Administration (NOAA) Method NMFS-NWFSC-59 2004 is currently used to quantitatively analyze seafood for polycyclic aromatic hydrocarbon (PAH) contamination, especially following events such as the Deepwater Horizon oil ...
Edward A. Pfannkoch   +5 more
doaj   +1 more source

Digital Rock Analysis on the Influence of Coarse Micro-Fractures on Petrophysical Properties in Tight Sandstone Reservoirs

open access: yesApplied Sciences, 2023
Tight sandstone reservoirs, as typical unconventional reservoirs, have attracted more and more attention worldwide. Compared to conventional reservoirs, the complex microscopic pore structures and micro-fractures of the tight reservoirs are developed ...
Lei Liu   +4 more
doaj   +1 more source

Estimating pore volume compressibility by spheroidal pore modeling of digital rocks

open access: yesPetroleum Exploration and Development, 2020
: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical ...
Weibo SUI   +3 more
doaj   +1 more source

Mechanical Behavior and Microstructural Characteristics of Ultradeep Tight Carbonate Rocks With Different Burial Depths

open access: yesFrontiers in Earth Science, 2022
The rapid growth in energy demand has placed more attention on the exploration and development of oil and gas in ultradeep reservoirs. However, deep buried rocks in the special “three high” geological environment exhibit significantly different ...
Ran Zhang   +4 more
doaj   +1 more source

Digital Rock Physics Application in Determining The Porosity of Shale Rock

open access: yesJournal of Physics: Conference Series, 2022
Abstract This research is focusing on determining the porosity of shale rock using the Digital Rock Physics (DRP) method. The DRP method uses fiji software to process μCT-scan data of shale coreplug through segmentation and thresholding processes to determine the pores of the rock and then to determine the value of rock porosity.
A A Pramana   +5 more
openaire   +1 more source

Facilitators and barriers to implementing the Project ECHO model: perspectives of 8 ECHO implementation teams

open access: yesMedical Education Online
Background Project ECHO has emerged as a leading telementoring modality for continuing medical education, particularly for providers practicing in rural and underserved areas with limited access to specialty care.
M. Kathryn Allison   +6 more
doaj   +1 more source

Barriers to breastfeeding among Medicaid mothers: Perceptions of telelactation education and support

open access: yesPEC Innovation
Objective: In Arkansas, only 55.8% of infants receive breastmilk during the first six months of life, despite recommendations from the American Academy of Pediatrics. Breast feeding rates are significantly lower among Medicaid users.
Crystal D. Jones   +5 more
doaj   +1 more source

Digital rock workflow to calculate wettability distribution in a reservoir rock

open access: yesE3S Web of Conferences, 2023
Wettability has a strong influence on multi-phase flow behavior through reservoir rock. Reservoir rocks tend to have spatially varying wettability. Prior to contact with oil, rocks are almost always naturally water-wet. As oil invades the pore-space over geologic time, the initial water-wet state may be altered in certain locations due to adhesion of ...
Islam Ashraful   +2 more
openaire   +2 more sources

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