Results 11 to 20 of about 1,709 (207)

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+9 more sources

Critical dynamic conditions for gas migration in tight sandstone

open access: yesShiyou shiyan dizhi
Physical simulation serves as a crucial method for understanding the mechanisms of underground oil and gas migration and accumulation. To gain a deeper understanding of gas migration mechanisms in tight reservoirs under deep geological conditions ...
Ruogu WANG   +6 more
doaj   +2 more sources

Modification of the Calculation Method for Dynamic Reserves in Tight Sandstone Gas Reservoirs. [PDF]

open access: yesACS Omega, 2021
The determination of dynamic reserves is important for tight sandstone gas reservoirs in production. Based on the geological and gas data of the Yan'an gas field, the influence of pressure on the properties of natural gas is studied by mathematical methods.
He J   +8 more
europepmc   +5 more sources

Relation of Heterogeneity and Gas-Bearing Capacity of Tight Sandstone: A Case Study of the Upper Paleozoic Tight Gas Sandstone Reservoir in the Southeast of the Ordos Basin [PDF]

open access: yesACS Omega, 2021
Compared to conventional reservoirs, only a few studies were carried out on the heterogeneity of unconventional tight sandstone reservoirs. This paper focuses on the Upper Paleozoic tight gas sandstone reservoir in the southeast of the Ordos Basin. The reservoir heterogeneity is studied through thin section and scanning electron microscope observations,
Yande Zhao   +7 more
openaire   +3 more sources

Matrix gas flow through ‘impermeable’ rocks – shales and tight sandstone [PDF]

open access: yesSolid Earth, 2021
Abstract. The effective pressure sensitivity of gas flow through two shales (Bowland and Haynesville shales) and a tight gas sandstone (Pennant sandstone) was measured over the typical range of reservoir pressure conditions. These are low permeability rocks such as can be exploited as caprocks above reservoirs that might be developed to store ...
E. Rutter   +3 more
openaire   +4 more sources

Study on Geochemical Characteristics of tight sandstone gas accumulation in Linxing area [PDF]

open access: yesE3S Web of Conferences, 2020
Based on the comprehensive analysis of the characteristics of tight sandstone gas composition, carbon isotope, light hydrocarbons and source rocks in Linxing area of Ordos Basin, the reservoir-forming model of tight sandstone gas in this area is ...
Li Yangbing   +5 more
doaj   +1 more source

Seismic wave equations in tight oil/gas sandstone media [PDF]

open access: yesScience China Earth Sciences, 2020
The paper is devoted to the derivation of a combined system of motion equations for solid and fluid in isotropic tight oil/gas sandstone media through volume averaging theorems (VAT). Based on the features of the media, four physical assumptions are proposed as the foundation for our derivation.
Gao, Jinghuai   +6 more
openaire   +2 more sources

Reservoir Characteristics of Tight Sandstone and Sweet Spot Prediction of Dibei Gas Field in Eastern Kuqa Depression, Northwest China

open access: yesEnergies, 2022
Great progress has been made in the exploration of tight sandstone gas resources in Kuqa depression. Great progress has been made in Dibei structural belt, which proves the previously unproven favorable area for tight sandstone gas.
Guangjie Zhao   +5 more
doaj   +1 more source

Upscaling gas permeability in tight-gas sandstones [PDF]

open access: yes, 2018
Klinkenberg-corrected gas permeability (k) estimation in tight-gas sandstones is essential for gas exploration and production in low-permeability porous rocks. Most models for estimating k are a function of porosity (ϕ), tortuosity (τ), pore shape factor (s) and a characteristic length scale (lc). Estimation of the latter, however, has been the subject
Behzad Ghanbarian   +3 more
openaire   +1 more source

Characterization of Nanoscale Pores in Tight Gas Sandstones Using Complex Techniques: A Case Study of a Linxing Tight Gas Sandstone Reservoir

open access: yesGeofluids, 2021
Pore structures with rich nanopores and permeability in tight gas reservoirs are poorly understood up to date. Advanced techniques are needed to be employed to accurately characterize pore structures, especially tiny pores which include micron and nanopores.
Chaohui Lyu   +4 more
openaire   +2 more sources

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