Results 41 to 50 of about 9,110 (212)
Oil & gas exploration and development is a combination of innovative thinking and practice. Firstly, a geologist should have the concept of oil and gas in his mind.
HE Faqi, XU Bingwei, SHAO Longkan
doaj
Identification of porosity in shale is of great significance for exploring mechanism of shale gas. Porosity properties of the shale samples from the Ordos Basin were characterized by multiple techniques including Scanning Electron Microscope(SEM ...
CHEN Sheng-rong +5 more
doaj +1 more source
On the basis of core and log data, a Bayesian‐Optimized Random Forest model achieved 92.76% accuracy in classifying tight sandstone reservoirs. A gray relational analysis‐derived evaluation index shows > 80% consistency with actual gas zones. ABSTRACT Tight sandstone gas (TSG), an unconventional oil–gas resource, has heterogeneous reservoirs ...
Yin Yuan +8 more
wiley +1 more source
The southwestern part of Ordos Basin is rich in oil and gas resources, and in recent years, a series of lithologic-structural reservoirs with small oil-bearing areas and high reserve abundance have been discovered in the Jurassic Yan’an Formation of the ...
QIU Xiangliang +6 more
doaj +1 more source
Affecting factors and application of the stable hydrogen isotopes of alkane gases
To study the composition, affecting factors of the stable hydrogen isotopes of alkane gases and their application to identification of the natural gas origin and maturities, the chemical and isotopic compositions of 118 gas samples of Carboniferous ...
Shipeng HUANG +10 more
doaj +1 more source
Ash yield is the primary geological factor controlling the spatial variations in the total gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin. However, porosity dominates the differential enrichment of the free gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin.
Shi Yunhe +9 more
wiley +1 more source
Shale oil is an unconventional oil resource that needs to be developed and utilized urgently. However, the Chang 7 shale in the Ordos Basin, as the most typical continental source rock in China, is limited by the study of organic matter (OM) enrichment ...
Yonggang Zhao +5 more
doaj +1 more source
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu +2 more
wiley +1 more source
Occurrence mode of selected elements of coal in the Ordos Basin
High concentrations of Al, Li, Ga, rare earth elements and yttrium, U and Ba in the Ordos Basin have been reported separately by lots of authors. These elements have even formed coal-associated deposits in some coalfields.
Junyan Wang +4 more
doaj +1 more source
Formation and distribution of large low-permeability lithologic oil regions in Huaqing, Ordos Basin
Through in-depth analysis of sedimentary source, lake basin shape and tectonic events as well as careful study of high quality source rocks, reservoir-forming force and history in the Huaqing area, Ordos Basin, the accumulation mode of large low ...
Hua YANG +5 more
doaj +1 more source

