Results 71 to 80 of about 7,289 (197)

Salt Precipitation‐Driven Rock Failure Mode Transition During Geological CO2 Sequestration

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Salt precipitation has emerged as a critical factor affecting injectivity, reservoir stability, and the potential to trigger near‐wellbore microseismic activity during geological CO2 sequestration. While previous studies have primarily focused on the brine acidification induced by CO2 injection, triggering geochemical reactions in carbonate ...
Senyou An   +7 more
wiley   +1 more source

Design of a Pressure Transient Campaign for a Giant Middle Eastern Field [PDF]

open access: yes, 2012
Imperial Users ...
Izzidien, Ali, Izzidien, Ali
core  

Resistivity Change Mechanism in the Carbon Dioxide Sequestration Process

open access: yesEnergy Science &Engineering, Volume 14, Issue 2, Page 752-763, February 2026.
This study explores the variation law, influencing factors, and mechanisms of resistivity in the interaction between CO₂ and saltwater. This study used a hollow PEEK conductor to simulate core pores. With excellent thermal stability, mechanical strength, and electrical insulation, its homogeneous, nonporous nature eliminates interference from rock ...
Xinke Jin   +5 more
wiley   +1 more source

Identification Analysis of Ultramafic-Mafic Intrusions in the Mamonsky Complex of the Voronezh Crystalline Massif

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2019
The paper describes the methods and results of identification analysis of the petrophysical parameters in ultramafic-mafic rocks from the Mamon intrusive complex in the Khopersky megablock of the Voronezh crystalline massif.
Муравина О.М.   +2 more
doaj   +1 more source

Facies and Depositional Environment Analysis of Alternate Channel Bodies in the Flank of a Sag Structure [PDF]

open access: yes, 2015
The down-dip (40o) portion turbidite Cenozoic deposits of the western sag structure in the Bohai bay been characterized for stratigraphy. Laterally tracking continuity in temporal data becomes challenging with increase in offset. In achieving this and
Alaigba, David   +3 more
core  

Magma Storage Below Sabancaya Volcano (Southern Peru) Imaged by Broadband Magnetotellurics

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Sabancaya volcano is one of the most active volcanoes in the Central Andes. Its ongoing eruptive process is accompanied by large‐scale deformation, with activation of the Huambo‐Cabanaconde fault system, marked by intense seismicity over an area of about 50 × 30 km2 ${\mathrm{k}\mathrm{m}}^{2}$.
Jose‐Luis Torres   +11 more
wiley   +1 more source

The Influence of Microporous Cements on the Pore Network Geometry of Natural Sedimentary Rocks

open access: yesFrontiers in Earth Science, 2019
We investigate the pore network geometry and permeability of six natural sandstones and carbonate rocks. Using 3D microtomographic images, we segment each rock sample into three phases: Solid matrix of grains, macropores containing void spaces, and a ...
Paul-Ross Thomson   +2 more
doaj   +1 more source

Pore‐Scale Transition Behavior of Digital Carbonate Rock Dissolution During CO2 Geo‐Sequestration

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract Carbon dioxide‐rich brine formation during geological carbon sequestration induces calcite dissolution, governed by the physicochemical coupling of fluid flow, reactive transport, and pore structure evolution. Unveiling the mechanisms that control this dissolution, particularly under varying flow and structural conditions, is essential for ...
Qiuheng Xie   +4 more
wiley   +1 more source

Permeability and Induced Polarization of Mudstones

open access: yesWater Resources Research
Electrical measurements can be used to estimate hydraulic properties such as permeability (k) in sedimentary rocks. Previous work has focused on sandstones, siltstones, and carbonates, while investigations on mudstones have rarely been reported.
Klaudio Peshtani   +2 more
doaj   +1 more source

The brittleness index in hydraulic fracturing [PDF]

open access: yes, 2015
We present a new definition of a brittleness index which is used as a criterion for candidate selection of rock intervals for hydraulic fracturing. The new index is a combination of material strength parameters and insitu stresses. It was derived from an
Atkinson, C, Papanastsiou, P
core  

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