Results 101 to 110 of about 405,708 (197)

The influence of heterogeneity of lacustrine shale facies on rock mechanical properties and brittleness: a case study of Jurassic lacustrine shale reservoirs in Northeast Sichuan Basin

open access: yesFrontiers in Earth Science
IntroductionDue to the significant increase in plasticity under conditions of high temperature and pressure, the existing single brittleness evaluation methods prove inadequate for accurately characterizing the compressibility of deep shale in ...
Haibo Zhao   +12 more
doaj   +1 more source

Recent advancements and practices of fracturing technology in continental shale reservoirs [PDF]

open access: yes
In continental shale reservoirs, the complex construction, limited fracture height and small stimulated volumes result in poor adaptability and low recovery efficiency when traditional shale fracturing techniques are used. This work introduces the recent
Lu, Mingjing   +4 more
core   +1 more source

Machine Learning Approaches for Predicting Total Organic Carbon From Petrophysical Well Logs in the Wufeng–Longmaxi Shale, Southeast Sichuan Basin, China

open access: yesGeoscience Data Journal, Volume 13, Issue 4, October 2026.
This study demonstrates the application of machine learning models—Random Forest, XGBoost, and Multiple Linear Regression—to predict Total Organic Carbon (TOC) from well logs, significantly improving TOC prediction accuracy and reliability across diverse geological settings compared to traditional log‐based methods.
Haseeb Ahmad   +6 more
wiley   +1 more source

Directrices para la redacción de citas y referencias bibliográficas: ISO 690:2013 [PDF]

open access: yes, 2015
VI Encuentro Científico Continental, organizado por la Universidad Continental. Se llevó a cabo los días jueves 17 y viernes 18 de setiembre del 2015 en el Campus de la Universidad Continental, Huancayo, Perú.Se expone las pautas y directrices para la ...
Bulege Gutiérrez, Wilfredo
core  

A Comparison of Screening Methods for Assessing Legacy Wells Within CO2 Storage Licences: Application to Offshore Norway

open access: yesGreenhouse Gases: Science and Technology, Volume 16, Issue 5, Page 746-757, October 2026.
ABSTRACT Legacy wells represent a critical consideration for offshore CO2 storage projects, as they may provide potential pathways for fluid or gas migration if poorly constructed, undocumented or inadequately abandoned. Systematically assessing large numbers of legacy wells remains challenging due to heterogeneous data availability and the diversity ...
Benjamin Emmel   +4 more
wiley   +1 more source

Parameter optimization of CO2 and water-based fluids co-injection for synergistic enhancement of energy and shale oil recovery

open access: yesYouqi dizhi yu caishoulu
The application of CO2 pre-fracturing in shale oil development demonstrates promising prospects. However, current research predominantly focuses on single-phase CO2 injection optimization, neglecting the synergistic interactions between CO2 and water ...
CHEN Huan   +4 more
doaj   +1 more source

A Study on the Distribution Characteristics of Salinity and Nutrients and the Migration Mechanism of Soil Salt in the Delingha Saline‐Alkali Soil Profile of the Qaidam Basin

open access: yesLand Degradation &Development, Volume 37, Issue 16, Page 11867-11884, October 2026.
ABSTRACT Soil salinization negatively impacts the economic development and ecological environment, particularly in the arid and semiarid regions of China. The Qaidam Basin constitutes a major distribution area of saline‐alkali land in the country. However, the distribution patterns of salinity and nutrients within soil profiles and the underlying salt ...
Hongpan Xue   +8 more
wiley   +1 more source

Experimental Study of the Fluid Contents and Organic/Inorganic Hydrocarbon Saturations, Porosities, and Permeabilities of Clay-Rich Shale

open access: yesEnergies
Unlike conventional reservoirs, shale is particularly complex in its mineral composition. As typical components in shale reservoirs, clay and organic matter have different pore structures and strong interactions with fluids, resulting in complex fluid ...
Fenglan Wang   +5 more
doaj   +1 more source

La investigación científica para la mejora educativa [PDF]

open access: yes, 2015
VI Encuentro Científico Continental, organizado por la Universidad Continental. Se llevó a cabo los días jueves 17 y viernes 18 de setiembre del 2015 en el Campus de la Universidad Continental, Huancayo, Perú.Describe los aspectos fundamentales de la ...
Rodríguez de los Ríos, Luis
core  

Macrozooplankton community structure and trophic interactions differ across a sub‐Antarctic shelf break, independent of Antarctic krill

open access: yesLimnology and Oceanography, Volume 71, Issue 10, October 2026.
Abstract The South Georgia continental shelf break is a highly productive and biodiverse region of the Southern Ocean, with abundant macrozooplankton forming the foundation of off‐ and on‐shelf communities. Antarctic krill (Euphausia superba) are a major component of these communities and can dominate total biomass.
Anona N. Griffiths   +5 more
wiley   +1 more source

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