Results 81 to 90 of about 206,413 (198)

Study on sedimentary model of Shanxi Formation – Lower Shihezi Formation in Da 17 well area of Daniudi gas field, Ordos Basin

open access: yesOpen Geosciences
The Daniudi gas field in the Ordos Basin is a significant area for developing tight sandstone gas reservoirs in China. This study focuses on the Permian Shanxi and Lower Shihezi formations in the Da 17 well area, analyzing sedimentary model through ...
Yang Chenyu   +6 more
doaj   +1 more source

Multidisciplinary approach to revisit the state of activity of a deep‐seated gravitational slope deformation in the frame of the Quaternary geomorphological evolution of the Central Apennines (Italy)

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Abstract Evaluating the state of activity of Deep‐Seated Gravitational Slope Deformation (DSGSD) is a challenge that requires multidisciplinary analytical approaches. This research focuses on the slope‐scale gravitational process, framing the role of the Quaternary morphodynamics of a river valley where multiple DSGSDs coexist, to reconstruct the ...
Giorgia Berardo   +5 more
wiley   +1 more source

Interpreting human behavior from depositional rates and combustion features through the study of sedimentary microfacies at site Pinnacle Point 5-6, South Africa.

open access: yesJournal of Human Evolution, 2015
Using fine and coarse resolution geoarchaeological studies at the Middle Stone Age site of PP5-6 at Pinnacle Point, Mossel Bay, South Africa, we discovered different patterns of anthropogenic input and changes in behavior through time.
P. Karkanas   +4 more
semanticscholar   +1 more source

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

open access: yesPetroleum 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   +9 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Sedimentary microfacies and palaeogeomorphology as well as their controls on gas accumulation within the deep-buried Cretaceous in Kuqa Depression, Tarim Basin, China

open access: yes, 2016
The gas and oil exploration in Kuqa Depression has entered the deep-buried and ultra-deep areas below 5000 m. This paper represents the systematic research accomplished which included microfacies observation and sandstone modeling in the outcrop, the ...
Ronghu Zhang   +5 more
semanticscholar   +1 more source

A review on the definitions of terms of sedimentary facies

open access: yesJournal 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

Sedimentary Microfacies Study of Putaohua Oil Layer in the East of Pubei Oilfield

open access: yes, 2014
The fault segmentation of blank area in the east of Pubei Oilfield is strong, and the distribution of oil and water is complex. In view of this kind of situation, we did sedimentary microfacies research in study area.
Z. Hao, Y. F. Zhang
semanticscholar   +1 more source

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

open access: yesFrontiers 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   +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

open access: yesCejing 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   +5 more
doaj   +1 more source

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