Results 61 to 70 of about 20,305 (226)

Evaluation of mineralogy per geological layers by Approximate Bayesian Computation

open access: yes, 2019
We propose a new methodology to perform mineralogic inversion from wellbore logs based on a Bayesian linear regression model. Our method essentially relies on three steps.
Bruned, Vianney   +3 more
core   +3 more sources

Imaging of a fluid injection process using geophysical data - A didactic example [PDF]

open access: yes, 2020
In many subsurface industrial applications, fluids are injected into or withdrawn from a geologic formation. It is of practical interest to quantify precisely where, when, and by how much the injected fluid alters the state of the subsurface.
Commer, M   +4 more
core  

Elastic and Petrophysical Properties of Shales

open access: yesASEG Extended Abstracts, 2007
Although shales comprise a large proportion of the sedimentary pile in many hydrocarbon-rich regions, their behaviour is not well understood from basin scales right down to the microscopic physics of particle interactions. Shale properties impact significantly on exploration, development and production costs through the effect of seismic anisotropy on ...
David Dewhurst   +5 more
openaire   +1 more source

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT To meet the increasing demand for raw materials and to foster the energy transition, advances in exploration techniques are required that extend capabilities to deeper and/or more densely populated areas while having a low environmental and societal impact.
K. Tietze   +9 more
wiley   +1 more source

Relationship Between Reservoir Properties of Rocks and Textural Features of Upper Devonian Carbonate Reservoir Rocks of the Timan-Pechora Basin

open access: yesRussian Journal of Earth Sciences
The paper presents the results of structural and textural characterization of heterogeneous, complexly built microbial-algae reservoir and their comparison with the results of petrophysical studies.
Nuriahmetov Ruzil' Rafikovich   +2 more
doaj   +1 more source

Establishing the Imperial Oilfield Case Study: Part 1 - Reservoir Appraisal and Characterisation [PDF]

open access: yes, 2011
Imperial Users ...
Mancha, Matthew Michael   +1 more
core  

4D Seismic History Matching Incorporating Unsupervised Learning

open access: yes, 2019
The work discussed and presented in this paper focuses on the history matching of reservoirs by integrating 4D seismic data into the inversion process using machine learning techniques.
Etienam, Clement
core   +1 more source

Hydro‐Mechanical Controls on Swarm Recurrence on the Westernmost Gofar Transform Fault, East Pacific Rise

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Swarms are microearthquake clusters governed by aseismic deformation, fluid migration, and stress changes, but the underlying mechanisms for their recurrence remain elusive. In 2008, abundant swarms were observed on the westernmost Gofar transform fault.
Lintong Jiang, Shihuai Zhang, Xiaying Li
wiley   +1 more source

Mineralogical and petrophysical research of pyroclastic rock of volcano Eyjafjallajokull (Iceland)

open access: yesRUDN Journal of Engineering Research, 2011
Take a mineralogical and petrophysical research of pyroclastic rock of volcano Eyjafjallajökull. Test a mineral composition and petrophysical properties of pyroclastic rock.
V Yu Abramov   +2 more
doaj  

Unstable Drainage Dynamics During Multiphase Flow Across Capillary Heterogeneities

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We use novel, fast 4D Synchrotron X‐ray imaging with large field‐of‐view to reveal pore‐ and macro‐scale drainage dynamics during gas–brine flow through a layered sandstone rock sample. We show that a single centimeter‐scale layer, similar in pore size distribution to the surrounding rock but with reduced connectivity, temporarily inhibits ...
C. Harris   +4 more
wiley   +1 more source

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