Nanoscale gas flow in shale gas sediments

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August undefined, 2024

Witryna1 sty 2024 · A unified model for gas flow in organic nanopores is implemented, accounting for the coupling mechanisms of the non-Darcy flow regimes, adsorption layer and stress dependence. The MFD method is applied for the discretization of fluid flow and the finite-element for mechanics. Witryna14 cze 2013 · In this paper we discuss implementing nanoscale flow equations (with nonlinear dependence on pressure) in our model and the resulting large-scale flow behavior. In this study, we present a novel adaptation of the existing pore network modeling tools for the shale challenge.

Diffusion characteristics of nanoscale gas flow in shale matrix from ...

Witryna26 kwi 2024 · The flow behavior of methane in nanopores is an important aspect in the exploitation of shale gas. In this study, MD simulations are conducted to investigate the static properties and flow behavior of methane confined in slit pores at nanoscale. Witryna15 paź 2007 · Results of the study showed that nanopores dominated in shale samples, and that nanopores in shale gas sediments contributed to the gas evolution … thc potentiators

Gas Flow Behavior of Nanoscale Pores in Shale Gas Reservoirs

WitrynaThe process of gas release and production from shale gas sediments is not well understood. Because of adsorptive capacity of certain shale constituents, including … Witryna8 lut 2024 · The large amount of nanoscale pores in shale results in the inability to apply Darcy’s law. Moreover, the gas adsorption of shale increases the complexity of pore size characterization and thus decreases the accuracy of flow regime estimation. Witryna1 dzień temu · Shale mechanical properties are important for shale gas production, but the magnitudes are difficult to estimate, standard size cores are hard to sample, and secondary interstice generation is ... thc policy

Energies Free Full-Text Opportunities in Measuring Multiscale …

Confinement Effect on Porosity and Permeability of Shales

Witryna10 lis 2014 · Gas flow in low permeability shale matrix is totally different from conventional seepage mechanism. The pore throat radius is on the order of molecular … Witryna22 lis 2024 · In micro- and nanopores may occur various flows including Knudsen, transition, slip and viscous flows (Darcy’s law). As gas flow regime is related to the pore radius, nonuniform pore size distribution causes the coexistence of various flow regimes in tight porous rocks. thc potato chipsWitryna11 gru 2024 · Slip boundary condition has been studied as an important discrepancy between macroscopic flow and nanoscale liquid flow. The effect of viscosity change … thc potency over time

"Witryna4 paź 2024 · Modeling of gas flow in shale media has become a crucial and useful tool to estimate shale gas production accurately. The second law of thermodynamics … " - Nanoscale gas flow in shale gas sediments

Nanoscale gas flow in shale gas sediments

Numerical simulation of gas transport mechanisms in …

Witryna27 maj 2024 · In this study, the gas flow regimes in shale nanopores were classified and analyzed according to Knudsen number. Then the gas flow model considering Darcy flow, slip flow, transition flow, molecular free flow and adsorption effect was proposed to evaluate the gas flow behavior in shale nanopores.

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WitrynaThe results explain that (1) the production predicted with the numerical method is accurate for the nonlinearity in the model being dealt with properly; (2) the field case shows the veracity of the proposed approach, and gas production and estimated ultimate recovery (EUR) can be evaluated with this model; (3) gas viscosity and Z-factor have … Witryna13 kwi 2024 · In recent years, unconventional oil and gas exploration and development have become essential components of global oil and gas production [1,2].Significant advances have been made in unconventional oil and gas, particularly in the depositional models of fine−grained sedimentary rocks, the characterization of micro−nano pore …

Witryna17 cze 2024 · Abstract The pore size distribution of four shale samples were characterized by and compared between CO2 adsorption, N2 adsorption, MIP and NMR. The results show that CO2 adsorption has an... Witryna陈叶，高向东，韩文龙，李媛媛，周晓得（中国矿业大学地球科学与测绘工程学院，北京100083）页岩储层天然裂缝发育特征 ...

Witryna12 kwi 2024 · The water-gas flow simulation was performed using PNM developed by Valvatne and Blunt [24]. This method has been further developed and applied in water-oil, and water-gas flow in porous permeable rocks; besides, its accuracy was also verified by comparing the simulated data with the measured data [25], [26]. The PNM … Witryna10 kwi 2024 · The formation and decomposition of gas hydrates in nanoscale sediments can simulate the accumulation and mining process of hydrates. This paper investigates the Raman spectra of water confined inside the nanoscale pores of silica gel, the decomposition characterizations of methane hydrate that formed from the …

Witryna7 godz. temu · The complex fault block oilfields in the craton basin contain vast reserves of oil and gas resources. During the development of an oilfield, the flow of oil, gas, and water, is controlled by faults and configuration boundaries. The distribution of remaining oil and gas depends on the interpretation of the reservoir’s architecture. …

Witryna23 sty 2024 · A reliable gas–water relative permeability model in shale is extremely important for the accurate numerical simulation of gas–water two-phase flow (e.g., fracturing fluid flowback) in gas-shale reservoirs, which has important implication for the economic development of gas-shale reservoir. thc potency checkerWitrynaGas flows through a network of pores with different diameters ranging from nanometres (nm = 10-9m) to micrometres (μm = 10-6m). In shale gas systems, nanopores play two important roles (Figure 2). thc pouchesWitryna28 sty 2015 · Nanoconfined methane flow behavior through realistic organic shale matrix under displacement pressure: a molecular simulation investigation. Zheng Sun. … thc pouches dipWitrynaAn improved approach to study multi-scale real gas transport in fractal shale rocks is proposed to bridge nanoscale PSD and gas filed production. This approach is well validated with field tests. Results indicate the gas production is underestimated without considering a nanoscale PSD. thcp powderWitryna5 paź 2024 · Through comprehensive evaluation, it is thought that several shale gas intervals in Sichuan Basin are the practical targets for shale gas exploration and development, and that the Weiyuan ... thc potency machinehttp://archiwum.inig.pl/INST/nafta-gaz/nafta-gaz/Nafta-Gaz-2014-07-01.pdf thc potenzWitryna序号: 论文作者: 论文名称: 刊物名称: 发表年: 收录: 1: Hexing Zhang, Kunpeng Lu, Wuzhou Zhang, Dalang Li, Genlan Yang: Quantification and acoustic ... thc powder dabs