Results 81 to 90 of about 440 (179)

Quantitative Identification and Distribution Pattern of Macrolithotype of Coal in Deep Coal Seams of the Daji Block

Energy Science &Engineering, Volume 13, Issue 10, Page 4839-4852, October 2025.
ABSTRACT The construction of a logging response model for macrolithotypes in coal has been successfully completed. This model has enabled delineation of vertical and planar distribution patterns of coal macrolithotypes within the #5 and #8 coal seams of the Daji block, as well as to forecast the distribution of favorable reservoir conditions.
Wei Zhang, Liheng Bian, Mingqing Hu, Peng Wu, Tim A. Moore, Jian Shen   +5 more
wiley   +1 more source

Geological conditions of coal measures metal enrichment in Linxing block, eastern margin of Ordos Basin

Abstract This study systematically elucidates the multi-scale coupled control system of the metal element enrichment mechanism in coal-bearing strata, revealing its dynamic interaction controlled by structural sedimentation fluid dynamics. Given that traditional geochemical research methods are limited by the spatial limitations of discrete ...
Yi Yang, Jingtao Zhao, Suzhen Shi, Wanli Gao   +3 more
openaire   +1 more source

Modeling Overpressure Development and the Mechanical Behavior of Sediments in a Complex, Tectonically Active Setting: East Coast Basin, New Zealand

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract The East Coast Basin (ECB) is a complex, active convergent margin located on the North Island of New Zealand, where variable but commonly very high overpressures occur in Cretaceous to Pleistocene stratigraphy. Using a consistent set of sediment physical properties and a single value for tectonic compression, a multi‐1D hydro‐mechanical ...
E. E. Calderon Medina, J. Obradors‐Prats, A. C. Aplin, S. J. Jones, M. Rouainia, A. J. L. Crook   +5 more
wiley   +1 more source

Identification of the Sedimentary Sources and Origin of Uranium for Zhiluo Formation of the Tarangaole U Deposit, Northeastern Ordos Basin

The large-sized Tarangaole uranium deposit and its neighboring Daying and Nalinggou deposits, located in the northeastern margin of the Ordos Basin, constitutes a major uranium resource base in northern China.
Xiao-Bo Zhao, Qiang Zhu, Guang-Yao Li, Chun-Ji Xue, Jian-Wen Yang   +4 more
core   +1 more source

New technology of dewatering gas recovery for CBM wells in southern Yanchuan Block, eastern margin of Ordos Basin

, 2021
As a typical unconventional gas reservoir with low pressure, permeability and water cut, deep coalbed methane needs effective support fracturing to achieve good development effects, leading to large difference of liquid production in the whole life cycle
JIANG Yongping, YANG Song
core   +1 more source

Quantitative Evaluation of Hydrocarbon-Generation Intensity of Coal-Measure Mudstones in the Shanxi Formation on the Eastern Margin of the Ordos Basin: A Case Study of the Daning–Jixian Area

Hydrocarbon-generation intensity (HGI) is a critical indicator for evaluating shale gas potential in source rocks. This study proposes a practical method to estimate HGI by integrating experimental pyrolysis data, EasyRo-based maturity transformation ...
Chang Xu, Futao Qu, Wei Hou, Yi Du, Yijing Zhang, Jinggan Song, Miao Wang, Sasa Guo, Kuaile Zhang   +8 more
core   +1 more source

Evaluation Method of Key Controlling Factors for Productivity in Deep Coalbed Methane Reservoirs—A Case Study of the 8+9# Coal Seam in the Eastern Margin of the Ordos Basin

Coalbed methane (CBM) resources hold broad development prospects in China, with deep CBM reservoirs increasingly becoming a focal point for exploration.
Qi An, Jiashuo Cui, Haitao Wen, Fanbang Zeng, Yu Li, Shaopeng Zhang, Jiachen Hu, Tian Lan   +7 more
core   +1 more source

Rayleigh wave tomography of the northeastern margin of the Tibetan Plateau

, 2011
The convergence between the Indian continent and the southern margin of Eurasia has eventually led to the growth of the Tibetan Plateau eastward. Various models have suggested that a large-scale flow in the lower crust or/and the asthenosphere is ...
Zhang, Qie, James Ni, Chen, Yongshun John, Yang, Yingjie, Ni, James, Eric Sandvol, Yingjie Yang, Sandvol, Eric, Qie Zhang, Yongshun John Chen   +9 more
core   +1 more source

Uplift of the Longmen Shan range and the Wenchuan earthquake [PDF]

, 2008
: The 12 May 2008 Wenchuan earthquake (M-s,=8.0) struck on the Longmen Shan foreland thrust zone. The event took place within the context of long-term uplift of the Longmen Shan range is a result of the extensive eastward-extrusion of crustal materials ...
Xu, Zhiqin, Li, Haibing, Hou, Liwei, Fu, Xiaofang, Cai, Zhihui, Ji, Shaocheng   +5 more
core   +1 more source

Factors influencing productivity and production system optimization for deep coalbed methane in the Daning-Jixian block, Ordos Basin

Meitian dizhi yu kantan
ObjectiveDeep coalbed methane (CBM) reservoirs are characterized by ultra-low porosity, ultra-low permeability, and super saturation, rendering it impractical to copy the productivity models of shallow coalbed methane and shale gas.
Haifeng ZHAO, Zhaojie JIA, Mengqi CHEN, Ziyi YANG, Bin WANG, Hongliang LIN, Yanfeng YANG   +6 more
doaj   +1 more source