Results 51 to 60 of about 5,655 (258)

Tectonic evolution and controls on natural gas generation and accumulation in the Ordovician system of the Ordos Basin, North China

open access: yesEnergy Reports, 2021
The Ordovician system of the Ordos Basin is rich in oil and gas resources, but the tectonic evolution of Ordovician strata and controls on natural gas generation and accumulation are poorly understood.
Peng Yang   +9 more
doaj   +1 more source

Logging Identification and Distribution of Bauxite in the Southwest Ordos Basin

open access: yesMinerals, 2023
In recent years, with the discovery of oil and gas in the Carboniferous bauxite reservoir in the Ordos basin, the formation and distribution of bauxite and bauxite reservoirs have attracted the attention of oil and gas explorers. Based on the slightly equidistant core testing of minerals and the porosity on the formation and calibration on the logging ...
Peng Zhang   +4 more
openaire   +1 more source

Reservoir Characteristics and Formation Model of the Bauxite Gas Reservoir: The Benxi Formation in the LX Block, Northeast of Ordos Basin, China

open access: yesACS Omega
Recently, horizontal well L47–1CH in the Longdong area of the southwestern Ordos Basin made a significant breakthrough in bauxite natural gas exploration, changing the traditional geological understanding that bauxite could not form effective reservoirs.
Shanshan Yu   +6 more
semanticscholar   +1 more source

Carbon Isotope Evidence for Ordovician Marine Hydrocarbon Source Rocks in Ordos Basin, North China

open access: yes, 2011
Ordos Basin is the second largest sedimentary basin in China with gigantically thick Paleozoic marine sedimentary strata. Geochemical analyses show that the carbon isotope compositions of the Ordovician are less influenced by post-depositional ...
Wenhou Li   +4 more
core   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

Lithofacies paleogeography of the Ordovician Kelimoli-Lashizhong formations along the western margin of the Ordos Basin

open access: yesMeitian dizhi yu kantan
ObjectiveThe period during the deposition of the Middle-Late Ordovician Kelimoli-Lashizhong formations witnessed a key transition of the tectonic framework along the western margin of the Ordos Basin. Investigating the lithofacies paleogeography of these
Weibin WANG   +7 more
doaj   +1 more source

Quantitative Insights into Atomic Scale Oil–Clay Adhesion Governing Shale Oil Retention and Mobility

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic force microscopy reveals a clear adhesion hierarchy between shale oil and clay minerals, governed by nanoscale surface chemistry. Strong interactions on chlorite and illite arise from abundant polar sites and cation bridging, whereas weaker coupling on montmorillonite limits interfacial binding.
Chen Lv, Guanwen Lu, Guandong Su
wiley   +1 more source

Present-day in-situ stress field within the Yanchang Formation tight oil reservoir of Ordos Basin, central China

open access: yes, 2020
The present-day in-situ stress field has many important and practical applications during the exploration and development of hydrocarbon resources. The Ordos Basin is a significant petroliferous basin in China, within which, the Yanchang Formation serves
Xu, Haoran   +6 more
core   +1 more source

The compilation of 1∶500000 seismotectonic map of the Ordos active block and boundary zone

open access: yes地震科学进展
The 1∶500000 seismotectonic map of the Ordos active block and boundary zone is a special achievement of the national key research and development project “Research on dynamic model and strong earthquake risk of Ordos active block boundary zone” .
Qiyun Lei   +5 more
doaj   +1 more source

On philosophy and innovative thinking of oil & gas exploration and development: Commemoration of the first oil well on land in China, Well-Yan1

open access: yesYouqicang pingjia yu kaifa, 2022
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  

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