Results 71 to 80 of about 14,843 (218)

Numerical modeling of onset and rate of sand production in perforated wells

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
Shear-type failure at a wellbore or perforation is typically characterized by damage to the formation rock. For example during drilling, wellbore failure may occur with rock fragments breaking off from the wellbore wall, and for producing wells, the ...
Assef Mohamad-Hussein, Qinglai Ni
doaj   +1 more source

Active Normal Fault Segmentation and Linkage in the Umbria‐Marche Apennines (Italy): Insights From 3D Structural Modeling

open access: yesTectonics, Volume 45, Issue 10, October 2026.
Abstract Normal‐fault growth, segmentation, and their relationships with crustal inheritance and rheological layering are investigated in a post‐thrusting setting of the southern sector of the Northern Apennines. We integrate 3D modeling with gravity, thermal, and seismological constraints to reconstruct the geometry and evolution of the main normal ...
M. Pedini   +8 more
wiley   +1 more source

Jean Schlumberger Éveils : a historical autobiography [PDF]

open access: yes, 2009
Jean Schlumberger (1877-1968), a French writer, journalist and co-founder of the Nouvelle Revue Française, a French literary journal, is best known as a writer of novels, plays and books of poetry.
NC DOCKS at The University of North Carolina Wilmington   +1 more
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A New Experimental Design to Measure Second‐ and Third‐Order Anisotropic Rock‐Stiffness Coefficients Using a Single‐Rock Sample

open access: yesGeophysical Prospecting, Volume 74, Issue 8, October 2026.
ABSTRACT We developed a new experimental setup for measuring and modelling stress‐induced anisotropy and nonlinearity in cylindrical rock samples. Multidirectional ultrasonic velocity measurements were conducted under laboratory conditions and during triaxial‐stress testing to capture dynamic rock properties. This is done by placing endcap transducers (
Gabriel Gallardo‐Giozza   +3 more
wiley   +1 more source

Rock fracture initiation and propagation by mechanical and hydraulic impact

open access: yesOpen Geosciences, 2019
Rock fracture due to high-pressure fluid jetting and insert indentation was experimentally investigated. In the frame of this article, indentation designates the process of pressing a tungsten carbide insert (TCI) for roller cone bits displacement ...
Stoxreiter Thomas   +6 more
doaj   +1 more source

Site Fidelity, Depth Preference and Vertical Movement Patterns of Lentic and Lotic European Catfish Silurus glanis

open access: yesFisheries Management and Ecology, Volume 33, Issue 5, Page 1031-1043, October 2026.
ABSTRACT To study variables that may trigger the dispersion of the currently expanding European catfish in its native distribution limits, 42 individuals were captured from Upper Lake Constance (lentic) and 42 from two streaming tributaries (lotic), fitted with pressure and temperature loggers, and released at the site of capture (control: lotic or ...
Albert Ros   +4 more
wiley   +1 more source

Vidalina Schlumberger 1900

open access: yes, 2023
Published as part of SIMMONS, MICHAEL & BIDGOOD, MICHAEL, 2023, " Larger " Benthic Foraminifera Of The Cenomanian. A Review Of The Identity And The Stratigraphic And Palaeogeographic Distribution Of Non-Fusiform Planispiral (Or Near-Planispiral) Forms, pp. 39-169 in Acta Palaeontologica Romaniae 19 (2) on page 104, DOI: 10.35463/j.apr.2023.02.06, http:/
SIMMONS, MICHAEL, BIDGOOD, MICHAEL
openaire   +1 more source

A Survey of Methods for Gas-Lift Optimization

open access: yesModelling and Simulation in Engineering, 2012
This paper presents a survey of methods and techniques developed for the solution of the continuous gas-lift optimization problem over the last two decades. These range from isolated single-well analysis all the way to real-time multivariate optimization
Kashif Rashid   +2 more
doaj   +1 more source

1D Basin Modelling of Upper Jurassic to Upper Cretaceous Source Rocks in the Southern Pletmos Sub‐Basin, Outeniqua Basin, Offshore South Africa

open access: yesJournal of Petroleum Geology, Volume 49, Issue 4, Page 1382-1411, October 2026.
ABSTRACT The Pletmos sub‐basin in the Outeniqua Basin, offshore South Africa, is divided by the Superior, Pletmos and Plettenberg faults into northern and southern depocentres. In this study, geological and organic geochemical data together with 1D basin modelling were used to investigate the burial, thermal and maturation histories, and the timing of ...
Fritz Ako Agbor   +4 more
wiley   +1 more source

Afrique du Nord : stabilité et instabilité au XXIème siècle

open access: yes, 2006
Guillaume Schlumberger u ...
Schlumberger, Guillaume
core  

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