نتایج جستجو برای: lithofacies

تعداد نتایج: 557  

Journal: :Journal of Geophysics and Engineering 2023

Abstract Lithofacies prediction can facilitate the search for hydrocarbon reservoirs and is, therefore, crucial seismic exploration. We proposed a new approach lithofacies based on stochastic simulation of pseudo-wells. First, we performed pseudo-well using continuous-time Markov chain (CTMC), which accurately describe geological deposition be created logging, core or data. used CTMC to randoml...

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1- Introduction The sediment cores BAG, AZD and AM in the Babolsar, Jouybar and Zaghmarz areas are located at the southern Iranian part of the coastal plain of the Caspian Sea. These areas are contained by major mountain ridge, the Alborz in the south (Central Alborz Structural Zone). The Alborz Mountain represent the main source of terrigenous materials in the South basin of the Caspian Sea. ...

Journal: :MANAS journal of engineering 2021

This study aimed to find the depositional environment and formation conditions of gypsum-dominated Miocene succession alternated intercalated with clastics carbonates in southwestern part Erzincan Basin. As a result sedimentological, mineralogical-petrographic investigations, it was determined that gypsum this sequence formed as primary secondary. Primary lithofacies; nodular anhydrite, selenit...

2016
James C. Stegen Allan Konopka James P. McKinley Chris Murray Xueju Lin Micah D. Miller David W. Kennedy Erin A. Miller Charles T. Resch Jim K. Fredrickson

Physical properties of sediments are commonly used to define subsurface lithofacies and these same physical properties influence subsurface microbial communities. This suggests an (unexploited) opportunity to use the spatial distribution of facies to predict spatial variation in biogeochemically relevant microbial attributes. Here, we characterize three biogeochemical facies-oxidized, reduced, ...

Journal: :Int. Arab J. Inf. Technol. 2005
Salim Chikhi Mohamed Batouche

This paper presents a probabilistic unsupervised neural method in order to construct the lithofacies of the wells HM2 and HM3 situated in the south of Algeria (Sahara). Our objective is to facilitate the experts' work in geological domain and to allow them to obtain the structure and the nature of lands around the drilling quickly. For this, we propose the use of the Self-Organized Map (SOM) of...

2014
Chukwuemeka Frank

The Benin Formation is well exposed along the Atamiri River, which traverses Uli town, in the Niger Delta Basin of Southeastern Nigeria. Lithologic sections were measured, described and sampled so as to decipher the paleodepositional environment, using an integration of lithofacies data, pebble morphology, grain size and paleocurrent analysis. The lithofacies study suggests that the Benin Forma...

2008
JON J. SMITH STEPHEN T. HASIOTIS MARY J. KRAUS DANIEL T. WOODY

Vertical changes in distribution, abundance, and ichnodiversity of ichnocoenoses in alluvial deposits of the Willwood Formation suggest significantly drier moisture regimes in the Bighorn Basin, Wyoming, during the Paleocene–Eocene Thermal Maximum (PETM), a transient period of global warming. The Willwood Formation at Polecat Bench contains an abundant assemblage of ichnofossils, including vari...

Journal: :IOP conference series 2022

Abstract The West Flood Canal River is one of the major rivers that flows central Semarang Bay. west flood canal river located in middle a densely populated residential and used as city drainage Semarang. Unfortunately, upper part has been swallowed up. This unique sedimentation dynamics, so it becomes suitable research object to determine relationship between processes concentration trace elem...

Journal: :The China Geological Survey Series 2023

This open access book presents new theory and methods on compiling lithofacies paleogeographic maps as key tool for guiding geological survey shale gas

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