Results 21 to 30 of about 708,392 (326)

Triassic hydrothermal chimneys from the Ordos Basin of Northern China [PDF]

Scientific Reports, 2021
AbstractBecause few well-preserved hydrothermal chimneys have been found in terrestrial sedimentary rocks, research on paleo-thermal vents in geological history is relatively sparse. In this study, we present our original discovery of “hydrothermal chimneys” from the Chang 7 source rocks of the Triassic Yanchang Formation in the Ordos Basin, China, and
Jiyuan You, Yiyao Yang, Yiqun Liu, Dingwu Zhou   +3 more
openaire   +4 more sources

Status-quo of proved oil/gas initially-in-place in China as of 2020 and its variation trend in the past decade

Energy Geoscience, 2022
This study analyzes the status-quo of the proved oil/gas initially-in-place and its variation trend, the proved undeveloped oil/gas initially-in-place, and the remaining proved technically recoverable reserves (TRR) of oil/gas in China as of 2020 based ...
Liming Zhou, Daoyong Zhang, Jinchao Sun, Yufeng Gu, Chenshuo Zhang, Chen Zhang   +5 more
doaj   +1 more source

The Characteristic Development of Micropores in Deep Coal and Its Relationship with Adsorption Capacity on the Eastern Margin of the Ordos Basin, China

Minerals, 2023
The accurate description of micro-/nanopores in deep coal reservoirs plays an important role in evaluating the reservoir properties and gas production capacity of coalbed methane (CBM). This work studies nine continuous samples of high–rank coal from the
Tao Wang, Fenghua Tian, Ze Deng, Haiyan Hu   +3 more
semanticscholar   +1 more source

Quantitative reconstruction of Early Cretaceous dune morphology in the Ordos paleo-desert and its paleoclimatic implications

Frontiers in Earth Science, 2023
Deserts are among the most important terrestrial sedimentary environments and have existed in all periods throughout Earth’s history. In contrast to modern deserts, the ability to quantitatively evaluate the area and desertification degrees of ancient ...
Shuo Cao, Jing Ma, Laiming Zhang
doaj   +1 more source

Deep Electrical Structure of the Langshan Mountain-Linhe Basin Area on the Northwest Edge of the Ordos Block, China

Frontiers in Earth Science, 2022
A series of fault depression structures have developed around the Ordos Block. The Langshan Mountain-Linhe Basin area (LLA), located on the northwest edge of the Ordos Block, is a typical, normal tension fault system.
Lingqiang Zhao, Lingqiang Zhao, Qingliang Wang, Cong Cao, Ming Hao   +4 more
doaj   +1 more source

Late Triassic tectonic stress field of the southwestern Ordos Basin and its tectonic implications: Insights from finite-element numerical simulations

Geosphere, 2023
The tectonic stress field of the southwestern Ordos Basin during the Late Triassic is controversial. The major controversy is whether the southwest- ern Ordos Basin was a compressional basin throughout the Late Triassic or whether it transformed from an ...
Lijun Song, Zeng-Zhen Wang
semanticscholar   +1 more source

Identification of Favorable Zones of Gas Accumulation via Fault Distribution and Sedimentary Facies: Insights From Hangjinqi Area, Northern Ordos Basin

Frontiers in Earth Science, 2022
The Hangjinqi area was explored for natural gas around 40 years ago, but the efficient consideration in this area was started around a decade ago for pure gas exploration.
A. Anees, Hucai Zhang, U. Ashraf, Ren Wang, Kai Liu, Hassan Nasir Mangi, R. Jiang, Xiaonan Zhang, Qi Liu, S. Tan, Wanzhong Shi   +10 more
semanticscholar   +1 more source

Development or absence of conjugate fractures in low-permeability sandstones

Frontiers in Earth Science, 2023
Natural fractures are ubiquitous in rocks. The Coulomb law of Mohr’s failure theory predicts that the angle between conjugate failure surfaces is a constant. In the Ordos Basin, observing the development of two groups of conjugate fractures in the field,
Haimeng Yang, Jifeng Yu, Peng Chen, Caifu Hu, Peng Dai   +4 more
doaj   +1 more source

Geochemical Characteristics of Helium in Natural Gas From the Daniudi Gas Field, Ordos Basin, Central China

Frontiers in Earth Science, 2022
Helium-bearing gas is accumulated in the Lower Ordovician, Upper Carboniferous, and Lower Permian reservoirs of the Daniudi gas field in Ordos Basin, and the helium concentrations and isotopic compositions are investigated in order to reveal the ...
Quanyou Liu, Xiaoqi Wu, Huichong Jia, Chunhua Ni, Jianhui Zhu, Jiujun Miao, Dongya Zhu, Q. Meng, W. Peng, Huiyuan Xu   +9 more
semanticscholar   +1 more source

Pore Structure and Fractal Characteristics of Deep Shale: A Case Study from Permian Shanxi Formation Shale, from the Ordos Basin

ACS Omega, 2022
Pore structure has certain significance for the preservation and enrichment of shale gas. However, less attention is paid to deep shale (>3000 m) which has unique pore characteristics that distinguish it from the shallow and medium layers.
Yuan Yang, Jinchuan Zhang, Longfei Xu, Pei Li, Yang Liu, W. Dang   +5 more
semanticscholar   +1 more source