Results 61 to 70 of about 20,174 (266)

Study on the lower limits of petrophysical parameters of the Upper Paleozoic tight sandstone gas reservoirs in the Ordos Basin, China

Journal of Natural Gas Geoscience, 2017
There hasn't been a clear understanding of the lower limits of petrophysical parameters of tight sandstone gas reservoirs so far. However, it is an important question directly related to exploration and development strategies.
Huiying Cui, Ningning Zhong, Jian Li, Dongliang Wang, Zhisheng Li, Aisheng Hao, Feng Liang   +6 more
doaj   +1 more source

Gas-water relative permeability model for tight sandstone gas reservoirs [PDF]

SCIENTIA SINICA Technologica, 2018
The pores in tight sandstone gas reservoir are mostly in microscale, and the gas water two-phase flow behavior through those pores is considerably complicated, thus, how to establish a reliable relative permeability model is the urgent problem to be solved.
Tao ZHANG, XiangFang LI, XiangZeng WANG, KaiYin HU, FengRui SUN, Song HAN   +5 more
openaire   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

Microscopic pore structure characteristics and implications of deep coal measure reservoirs in eastern Ordos Basin [PDF]

Youqicang pingjia yu kaifa
The deep coalbed methane resources in the eastern Ordos Basin are abundant, and comprehensive development of coal measure gas can enhance resource utilization and improve single well gas production.
MA LITAO, WU PENG, YANG JIANGHAO, HU WEIQIANG, HUANG YING, LIU CHENG, NIU YANWEI, WANG ZHIZHUANG, REN DAZHONG   +8 more
doaj   +2 more sources

A new method for well pattern density optimization and recovery efficiency evaluation of tight sandstone gas reservoirs

Natural Gas Industry B, 2020
For the sake of improving the reliability of the method for well pattern density optimization of tight sandstone gas reservoir and effectively demonstrate the relationship between well pattern density and recovery efficiency, the well interference ...
Shusheng Gao, Huaxun Liu, Liyou Ye, Zhijie Wen, Wenqing Zhu, Chun Zhang   +5 more
doaj   +1 more source

Structural heterogeneity and permeability in faulted eolian sandstone: Implications for subsurface modeling of faults [PDF]

, 2002
We determined the structure and permeability variations of a 4 km-long normal fault by integrating surface mapping with data from five boreholes drilled through the fault (borehole to tens of meters scale).
Evans, J.P., Forster, C.B., Robeson, K.R., Shipton, Z.K., Snelgrove, S.   +4 more
core  

Permeability evolution during progressive development of deformation bands in porous sandstones [PDF]

, 2003
[1] Triaxial deformation experiments were carried out on large (0.1 m) diameter cores of a porous sandstone in order to investigate the evolution of bulk sample permeability as a function of axial strain and effective confining pressure.
Antonellini, Antonellini, Aydin, Aydin, B. T. Ngwenya, Beach, Bruno, Caine, Crawford, Evans, Fowles, Gibson, Grueschow, Hippler, I. G. Main, Jamison, Knipe, Knipe, Knott, Main, Main, Main, Mair, Mair, Manzocchi, Menendez, Moore, Ngwenya, Ngwenya, Ngwenya, O. Kwon, Ogilvie, Popp, Ramsay, Rhett, Rojstaczer, Rudnicki, S. C. Elphick, Scholz, Scott, Shipton, Sibson, Sverdrup, Taylor, Tuefel, Underhill, Wong, Zang, Zhang, Zhu, Zhu, Zoback   +51 more
core   +3 more sources

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Formation mechanism of the upper Paleozoic tight sandstone gas reservoir in the Daniudi gas field, Ordos Basin, China

Frontiers in Earth Science
The upper Paleozoic gas reservoir in the Daniudi gas field, Ordos Basin, is one of the typical tight sandstone gas reservoirs in China. Research into the sequential order of reservoir densification and gas accumulation is the key to revealing the ...
Fan Song, Fan Song, Qingyuan Kong, Qingyuan Kong, Nina Su, Nina Su, Guohua Jiao, Miaomiao Xu, Miaomiao Xu   +8 more
doaj   +1 more source

Stratigraphic Overview of Palaeogene Tuffs in the Faroe-Shetland Basin, NE Atlantic Margin [PDF]

, 2017
Acknowledgements We are very grateful to PGS for generously donating seismic datasets. Seismic interpretation was carried out using IHS Kingdom software, and wells were downloaded from the UK Oil & Gas Common Data Access Welllog interpretation was ...
Archer, Stuart, Finlay, Alexander J., Hardman, Jonathon, Jolley, David, Mark, Niall, Schofield, Nick, Watson, Douglas, Watton, Timothy   +7 more
core   +1 more source