Results 91 to 100 of about 4,225,085 (180)

Differential characteristics of lithological assemblages and gas-bearing of the Permian Longtan Formation mudstone in well L3, southeastern Sichuan Basin

open access: yes
As the main reservoir of coalbed gas in southeastern Sichuan, the mudstone of the Permian Longtan Formation has been drilled to obtain industrial gas, but the level of exploration and development is low.
Hao Xu   +8 more
core   +1 more source

Molecular simulation of methane adsorption capacity in transitional shale – a case study of Longtan Formation shale in Southern Sichuan Basin, SW China

open access: yesOpen Geosciences
It is of great significance to clarify the shale gas occurrence mechanism under formation condition for the exploration and development of transitional shale gas reservoir.
Chen Weiming   +5 more
doaj   +1 more source

Comprehensive Understanding of OM-Hosted Pores in Transitional Shale: A Case Study of Permian Longtan Shale in South China Based on Organic Petrographic Analysis, Gas Adsorption, and X-ray Diffraction Measurements

open access: yes, 2019
Marine-continental transitional (hereinafter referred to as transitional) Permian shales are the important targets for shale gas in China. However, the nature and formation of organic matter (OM)-hosted pores in this shale facies have not yet been ...
Liu, Yuke   +4 more
core   +1 more source

Accumulation and Exploration Potential of Coalbed Methane Collected from Longtan Formation of Santang Syncline in Zhijin, Guizhou Province

open access: yesProcesses
Understanding coalbed methane (CBM) enrichment patterns is essential for optimizing production capacity. This study evaluates the CBM reservoir-forming characteristics and exploration potential of the Longtan Formation in the Santang Syncline, Zhijin area, to systematically reveal CBM enrichment and high-production patterns.
Shupeng Wen   +8 more
openaire   +1 more source

Permian Longtan Shale in Guizhou, China: From Mineralogy and Geochemistry to Paleoenvironments

open access: yes
The depositional environment of the Permian Longtan shale (LS) in southwestern Guizhou Province, China, has been analyzed using mineralogical and geochemical approaches.
Pingping Ye   +6 more
core   +1 more source

Progressiv felanalys av fundamentytan till gravitationsdammen Longtan

open access: yes, 2011
The most common failure of concrete gravity dams is sliding along the foundation surface. This thesis studies progressive failure of the Longtan dam on the upper Hongshuie river in china.Two methods are used in this thesis; the Safety Reserve Factor (SRF)
Wästlund, Dag
core   +2 more sources

Analysis of general geological conditions of coalbed methane in coal seam C25 of Permian Longtan Formation, south Chongqing

open access: yesYouqicang pingjia yu kaifa
The exploration and development of coalbed methane(CBM)in the Permian Longtan Formation in south Chongqing is in the initial stage. In order to reveal the general geological conditions of coalbed methane in the coal seam C25, by the experimental and ...
XUE Gang   +7 more
doaj  

Geological Constraints on the Gas-Bearing Properties in High-Rank Coal: A Case Study of the Upper Permian Longtan Formation from the Songzao Coalfield, Chongqing, Southwest China

open access: yes
The Permian Longtan Formation in the Songzao coalfield, Southwest China, has abundant coalbed methane (CBM) stored in high-rank coals. However, few studies have been performed on the mechanism underlying the differences in CBM gas content in high-rank ...
Jinxi Wang   +5 more
core   +1 more source

Longtan Dam – Dam safety and production losses under dynamic load [PDF]

open access: yes, 2012
The energy demand in China is steadily growing and large hydropower dams become more and more common. A major dam failure could cause large environmental, economic and social effects, and work concerning safety in dams is therefore essential in order to ...
Wallmann, Ludvig, Berggren, Lars
core  

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