Results 121 to 130 of about 2,177 (173)

Robust Unilateral Alignment for Subsurface Lithofacies Classification

IEEE Transactions on Geoscience and Remote Sensing, 2022
Subsurface lithofacies classification refers to the way of establishing a classifier on the interpreted well logging data to predict the lithofacies types corresponding to the uninterpreted ones. Such a task has become a research focus by applying machine learning technologies under the assumption of independent and identical distribution. However, due
Yuping Wu 0002, Yuxiao Yang, Wenjun Lv, Ji Chang, Zerui Li, Deyong Feng, Ting Xu 0004, Jing Li 0129   +7 more
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An Evaporitic Lithofacies Continuum

1977
Abstract Environments that may result in deposition of evaporites occur in a sedimentary continuum which begins in the subaerial continental environment and extends into a hypersaline sea. The evaporitic sedimentary sequence of latest Miocene (Messinian) age, near Salemi, Sicily, contains carbonate rocks, argil I ites and gypsum that ...
B. Charlotte Schreiber, Raimondo Catalano, Edward Schreiber   +2 more
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Integrated Workflow on Lithofacies Modeling

SPE Middle East Oil & Gas Show and Conference, 2017
Abstract 3D lithofacies modeling is a key step in depositional environment analysis. 1D lithofacies modeling along the wellbore is an essential contributor to the 3D modeling. This paper introduces an integrated workflow from 1D to 3D lithofacies modeling and the application of this workflow in an oil and gas field.
William Li Yunsheng, Radhey S Bansal
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GLACIAL LANDFORMS, SEDIMENTS | Glacigenic Lithofacies

2007
Glaciation has occurred episodically in Earth history since 2.8 billion years, most notably as the classic Ice Age/interglacials cycles of the recent geologic past (
N. Eyles, M. Lazorek
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Carbonate lithofacies as paleolatitude indicators: problems and limitations

Sedimentary Geology, 1988
Abstract Detailed study of Miocene carbonates in the Mediterranean region and their analogues on modern carbonate shelves (in the Mediterranean Sea, Brazil and other areas) reveals at least three major types of carbonate platform lithofacies in addition to the classic tropical coral reef (chlorozoan) lithofacies: (a) chloralgal lithofacies, similar ...
CARANNANTE, GABRIELE, ESTEBAN M., MILLIMAN J., SIMONE L.   +3 more
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Characteristics and Evolution of Lithofacies Paleogeography

2020
Similarities in global tectonics evolution and the unity of global sea level eustasy in the Paleozoic have provided a scientific foundation for sequence stratigraphy research. Since its development in 1987–1988, sequence stratigraphy has been applied in geological research worldwide with astonishing speed and breadth.
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Complicated Conglomerate Lithofacies and Their Effects on Hydrocarbons

Petroleum Science and Technology, 2014
Conglomerates of Baikouquan Formation are fan-delta sedimentogenesis, and consist of coarse granules distributed near the source. Based on the sedimentary characteristics of the conglomerate the delta can be geographically divided into three areas: the fan-delta plain, fan-delta front, and pro-delta.
C. Tan, X. Yu, J. Qu, Z. Wang, X. Li, Z. Gao   +5 more
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Lithofacies Maps and Regional Sedimentary-Stratigraphic Analysis

AAPG Bulletin, 1948
ABSTRACT Lithofacies maps may be prepared in numerous ways, and this paper emphasizes a statistical approach which brings out the magnitude and rates of change in lithologic characteristics for selected stratigraphic intervals. The interval is divided into percentages of clastics (conglomerate, sandstone, shale) and non-clastics ...
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Lithofacies and Transport of Clastic Sediments in Karstic Aquifers

2004
Karst aquifers demand continuous transport of clastic sediments if the conduit system is to remain open. Sediments are injected into the aquifer by sinking surface streams and through sinkholes, vertical shafts, open fractures, and other pathways from the land surface of sufficient aperture to permit gravity- and inwash-driven transport. Much transport
Rachel F. Bosch, William B. White
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Integrated Lithofacies and Petrophysical Properties Simulation

SPE Western Regional Meeting, 1997
Abstract This paper presents a new procedure that simultaneously generates consistent distributions of categorical lithofacies and continuous petrophysical properties, i.e., porosity and permeability. The technique used is the conditional simulation method which is capable of honoring the original distribution of ...
Asnul Bahar, Mohan Kelkar
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