Results 91 to 100 of about 108,687 (240)

Multi‐Elemental Analysis for Geographical Tracing of Chickpeas Produced in Nearby Locations Around a Protected Geographical Indication

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT The multi‐elemental profile has repeatedly been proposed as a reliable indicator of the geographical origin of plant‐derived foods, as mineral composition accurately reflects the local soil geochemistry and environmental factors. However, this approach may fail in distinguishing specimens from nearby locations, which are expected to be exposed
Ana Sayago   +2 more
wiley   +1 more source

Effects of the Sedimentary Environment on Organic-Rich Shale in the Intracratonic Sag of the Sichuan Basin, China

open access: yesApplied Sciences
The enrichment of organic matter in high-quality marine shale is generally controlled by factors such as the redox conditions of sedimentary environments, productivity levels, terrigenous input, and ancient productivity.
Xuewen Shi   +12 more
doaj   +1 more source

Independent Expert Scientific Panel – Report on Unconventional Oil and Gas [PDF]

open access: yes, 2014
No abstract ...
Curran, J.   +8 more
core   +1 more source

Balancing Hydraulic Fracturing’s Environmental and Economic Impacts: The Need for a Comprehensive Federal Baseline and the Provision of Local Rights [PDF]

open access: yes, 2013
Reliable evaluation methods is needed to ensure that investments in energy conservation measures (ECMs) and the construction of new energy efficient buildings lives up to the promised and expected performance.
Garmezy, Adam
core   +1 more source

Is OPEC dead? Oil exporters, the Paris agreement and the transition to a post-carbon world [PDF]

open access: yes, 2017
The Organization of the Petroleum-Exporting Countries (OPEC) faces a perfect storm. It is squeezed between the revolution in unconventionals, which has increased global supply of hydrocarbons and lowered their price, and the prospect of a global peak in ...
Van de Graaf, Thijs
core   +2 more sources

Numerical simulation on fracturing fluid flowback from post-fracturing shale gas wells and influencing factors

open access: yesJournal of Petroleum Exploration and Production Technology
Fracture network fracturing is a key technology to achieve economic and effective development of shale gas. The flowback data after hydraulic fracturing is crucial to the characterization of hydraulic fracture networks and reservoir evaluation.
Dengji Tang   +8 more
doaj   +1 more source

High-Precision Density Log Reconstruction Method Based on the RF-Transformer Algorithm

open access: yesApplied Sciences
Under the backdrop of digital subsurface and intelligent field development, together with sustainable development planning, reliable and continuous well-log measurements are increasingly essential for reservoir evaluation and geological interpretation ...
Junlei Su   +5 more
doaj   +1 more source

Pore evolution characteristic of shale in the Longmaxi Formation, Sichuan Basin

open access: yesPetroleum Research, 2017
Through the field emission scanning electronic microscope (FESEM) and the nitrogen adsorption test, pore type and structure of shale reservoir in the Longmaxi Formation in the Sichuan Basin were well studied.
Wenping Liu   +5 more
doaj   +1 more source

Opening of Bedding-Parallel Fractures in the Shale Oil Reservoirs of the Paleogene Funing Formation, Subei Basin, China

open access: yesEnergies
Bedding-parallel fractures represent a crucial flow-path network in shale oil reservoirs, yet their timing of opening and driving mechanisms remain subjects of long-standing debate.
Zhelin Wang   +4 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon   +21 more
wiley   +1 more source

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