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Numerical Simulation Research on Gas-Solid Two Phase Flow in Oil Shale Circulating Fluidized Bed

Oil shale circulating fluidized bed combustion technology is a new technology and it is the most economical and efficient combustion way for using Oil shale resources. Nnumerical simulation of CFB is very important in the prediction of its flow behavior.

Numerical Simulation Research on Gas-Solid Two Phase Flow in Oil Shale Circulating Fluidized Bed   Qing Wang1,Jun-tao Feng1,Bai-zhong Sun1,Yong-qing Qi2,Deng-feng Chen2,Jin-long Luo1 1.Northeast Dianli University, Jilin, Jilin Province, China-2. Daqing Oilfield Limited Company, Daqing City, Chin Abstract Oil shale circulating fluidized bed combustion technology is a new technology and it is the most economical and

Experimental investigation on the coupled effect of effective stress and gas slippage on the permeability of shale

The coupled effect of gas slippage and effective stress on shale permeability remains unclear. Here we perform laboratory experiments on Longmaxi shale specimens to explore the coupled effect.

Experimental investigation on the coupled effect of effective stress and gas slippage on the permeability of shale Diansen Yang1, Wei Wang1,2, Weizhong Chen1,3, Shugang Wang3 & Xiaoqiong Wang4   1State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese. Academy of Sciences, Wuhan, Hubei 430071, China. 2University of

Nanoscale simulation of shale transport properties using the lattice Boltzmann method: permeability and diffusivity

The streamlines are quite tortuous, and continuous pathways from the inlet to the outlet are quite few, resulting in quite low permeability of shales.

Nanoscale simulation of shale transport properties using the lattice Boltzmann method: permeability and diffusivity   Li Chen1,2, Lei Zhang3, Qinjun Kang2, Hari S. Viswanathan2, Jun Yao3 & Wenquan Tao1   1Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, China, 2Earth and

Subcontinuum mass transport of condensed hydrocarbons in nanoporous media

Left: In bulk, molecular diffusion is well described by the hydrodynamic Stokes–Einstein relation Ds=μkBT=kB/(4πZη0) (with slip boundary conditions). The effective particle diameter 2R0 is consistent with σCH2 —independently of the alkane length—because the diffusive motion is mostly in longitudinal direction. Right: In contrast, in the nanopores, movement of alkane molecules is dominated by friction on the carbon matrix, corrected for the free volume accessible to the molecule (green sphere). The total friction force is a sum of the forces between the individual monomers with the pore wall—therefore scaling linearly with the alkane length. v stands for the molecule velocity.

Subcontinuum mass transport of condensed hydrocarbons in nanoporous  media   Kerstin Falk1, Benoit Coasne1, Roland Pellenq1, Franz-Josef Ulm1 & Lyderic Bocquet1,w   Abstract Although hydrocarbon  production from unconventional reservoirs, the  so-called shale gas, has exploded recently, reliable predictions of resource availability and extraction are missing because conventional tools fail to account  for their ultra-low permeability

Full field reservoir modeling of shale assets using advanced data-driven analytics

Top-Down modeling, a recently developed data-driven reservoir modeling technology  (ISI, 2014), is defined as a formalized, comprehensive,

Full field reservoir modeling of shale assets using advanced data-driven analytics   Soodabeh Esmailia, Shahab D. Mohagheghb,*   aAsset  Development Team, North Operation, California Resources Corporation, California 90024, USA bWest Virginia University, 345-E Mineral Resources Bldg., P. O. Box 6070, Morgantown, WV 26506, USA   Abstract Hydrocarbon production from shale has attracted much attention in  the recent years.

Lattice Boltzmann Simulation of Shale Gas Transport in Organic Nano-Pores

Lattice Boltzmann Simulation of Shale Gas Transport in Organic Nano-Pores

Lattice Boltzmann Simulation of Shale Gas Transport in Organic Nano-Pores Xiaoling Zhang1, Lizhi Xiao1, Xiaowen Shan1,2 & Long Guo1   1State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, People’s Republic of China, 2Beijing Aeronautical  Science & Technology Research Institute of COMAC (BASTRI), People’s Republic of China.   Abstract Permeability is

Improved oil recovery in nanopores: NanoIOR

The reservoir has water alongside the silica matrix, and after about 2 nm (for both sides), the oil slab begins, having a thickness of 5 nm. To induce the fluid flux, as explained in the methodology section, a gravity field was applied, only to the oil molecules.

Improved oil recovery in nanopores: NanoIOR  James Moraes de Almeida1 & Caetano Rodrigues Miranda1,2   1Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brazil. 2Instituto de Física, Universidade de São Paulo, São Paulo, SP, Brazil.   Abstract Fluid flow through minerals pores occurs in underground aquifers, oil and shale gas reservoirs.

Micro/Nano-pore Network Analysis of Gas Flow in Shale Matrix

Figure 8 shows a pressure distribution of the same pore network layer where the pore size distribution is according to the real shale matrix pore size range and the gas pressure ratio (gas pressure of pore i divides maximum pore pressure of this layer) is a curved surface demonstrating the fingering effect.

Micro/Nano-pore Network Analysis of Gas Flow in Shale Matrix Pengwei Zhang1, Liming Hu1, Jay N. Meegoda2 & Shengyan Gao2   Abstract The gas flow in shale matrix is of great research interests for optimized shale gas extraction. The gas flow in the nano-scale pore may fall in flow regimes such as viscous flow, slip

Excel Worksheet to Calculate the Permeability in Shale Gas Fields

With this we can calculate and view in a fast, simple and immediate as varies the Knudsen number and the apparent permeabilities for the models presented in the previous post through the introduction of petrophysical parameters of our field. The calculations are carried out and plotted for a range of pressures comprised between 1psi to 15000psi.

Excel Worksheet to Calculate the Permeability in Shale Gas Fields In this article I will leave them and I'll explain the file (worksheet) of Excel with which I did the calculations and graphs of the paper "Flow Mechanics in Shale Gas". With this we can calculate and view in a fast,

Flow Mechanics in Shale Gas

Dmitriy Silin, SPE, Lawrence Berkeley National Laboratory, and Tad Patzek, SPE, University of Texas, Austin.

FLOW MECHANICS IN SHALE GAS Emanuel Martin Introduction: When analyzing the flow production data in a shale play notice that these measures are higher than those predicted by Darcy’s Law with which they were calculated. Based on that we might ask ourselves why is the production of gas higher than expected? Is it

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