Results 61 to 70 of about 756 (173)

Lithofacies types, sedimentary cycles, and facies models of saline lacustrine hybrid sedimentary rocks: A case study of Neogene in Fengxi area, Qaidam Basin, NW China

Petroleum Exploration and Development
The saline lacustrine hybrid sedimentary rocks are complex in lithology and unknown for their sedimentary mechanisms. The hybrid sedimentary rocks samples from the Neogene upper Ganchaigou Formation to lower Youshashan Formation (N1–N21) in the Fengxi ...
Guangyong SONG, Zhanguo LIU, Yanqing WANG, Guohui LONG, Chao ZHU, Senming LI, Mingzhi TIAN, Qi SHI, Zhiyuan XIA, Qingshun GONG   +9 more
doaj   +1 more source

Study of the method portrayed by a river by calculating the tooth rate of the logging curve

Journal of Natural Gas Geoscience, 2019
In order to accurately describe the reservoir distribution of the oil and gas field, the precision of the portrayal of the channel microfacies is getting higher and higher.
Guangquan Zhang, Hao Li, Xiangyang Hu, Yang Gao   +3 more
doaj   +1 more source

Differentiating hyperpycnal, hypopycnal and turbidity current deposits in late Quaternary glaciogenic mud

The Depositional Record, Volume 12, Issue 1, February 2026.
X‐ray CT and microscopic analysis of glaciogenic mud provide insight into the deposits of sediment‐laden density flows and reveal that strata comprise two microtextural motifs. The deposits of bottom‐hugging hyperpycnal flows and slope‐failure‐related turbidity currents are characterised by laterally continuous, sharply bounded silt‐rich and clay‐rich ...
Omar N. Al‐Mufti, R. William C. Arnott, Marc J. Hinton, Hazen A. J. Russell   +3 more
wiley   +1 more source

A review on the definitions of terms of sedimentary facies

Journal of Palaeogeography, 2019
In recent years, in some papers and manuscripts published in and submitted to the Journal of Palaeogeography (Chinese Edition and English Edition), the authors named the rocks or rock types as “microfacies” or “lithofacies”, named the microfeatures in ...
Zeng-Zhao Feng
doaj   +1 more source

Pore Structure of Tight Sandstones With Different Sedimentary Microfacies in the Chang 6–Chang 9 Layers, Triassic Yanchang Formation, Wuqi Area, Ordos Basin

Energy Science & Engineering
To investigate pore characteristics and influencing factors of tight sandstones across various sedimentary microfacies, we conducted a comprehensive analysis using casting thin section identification, scanning electron microscopy, nitrogen adsorption ...
Liling Zhang, Dayou Chen, Liping Rao, Xuan Li, Meng Wang, Wenjian Zhu, Yizhe Wang, Yushuang Zhu   +7 more
doaj   +1 more source

Improving the accuracy of geological models and seismic sedimentology using sedimentary forward modeling

Frontiers in Earth Science
Reservoir description based on geostatistics requires cross well constraints (such as high-quality seismic data) to predict the quality of cross well reservoirs that conform to geological laws.
Fan Zuochun, Fan Zuochun, Hu Changhao, Jiang Shu, Yao Rui, Li Man, Zhao Lintian   +6 more
doaj   +1 more source

Fine Identification and Application of Single Well Facies of Pinghu Formation Clastic Rocks in NX Area of Xihu Sag

Cejing jishu
To precisely identify single well facies (microfacies) of clastic rocks in the Pinghu formation of NX area, Xihu sag, understand their internal characteristics, and support reservoir evaluation and prediction of favorable reservoirs, phase marker ...
ZHANG Ruixiang, YAN Jianping, YAN Hua, GENG Bin, WANG Jun, QIU Xiaoxue   +5 more
doaj   +1 more source

Regionalized multiple-point stochastic geological modeling: A case from braided delta sedimentary reservoirs in Qaidam Basin, NW China

Petroleum Exploration and Development, 2015
Research on the depositional model of a braided delta in Kunbei oilfield, Qaidam Basin, was conducted with a fine geologic study in a dense well network area by combining sedimentary physical simulation to obtain statistical characteristic parameters and
Gengxin CHEN, Fan ZHAO, Jiangong WANG, Hongjun ZHENG, Yaozu YAN, Aiping WANG, Jiyong LI, Yunpeng HU   +7 more
doaj   +1 more source

Virtual Special Issue: Geoarchaeology at the Micro‐Scale: Recent Advances in Microanalytical Techniques

Geoarchaeology, Volume 41, Issue 2, March/April 2026.
Justin A. Holcomb, Michael J. Aiuvalasit
wiley   +1 more source

Log-based identification of sedimentary facies in coal measures in the southern Wuxiang block, Shanxi Province, China

Meitian dizhi yu kantan
ObjectiveThe Carboniferous and Permian coal-bearing strata in the southern Wuxiang block, Qinshui Basin, Shanxi Province, China contain abundant coalbed methane (CBM) resources. To develop intelligent discrimination technology for CBM exploration in this
Yi JIN, Yunqing TIAN, Huibo SONG, Bin HU, Zhenfeng YU   +4 more
doaj   +1 more source